Update dependencies

6 files changed, 1025 insertions, 88 deletions

diff --git a/vendor/github.com/stretchr/testify/assert/assertion_format.go b/vendor/github.com/stretchr/testify/assert/assertion_format.go
new file mode 100644
index 0000000..23838c4
--- /dev/null
+++ b/vendor/github.com/stretchr/testify/assert/assertion_format.go
@@ -0,0 +1,379 @@
+/*
+* CODE GENERATED AUTOMATICALLY WITH github.com/stretchr/testify/_codegen
+* THIS FILE MUST NOT BE EDITED BY HAND
+ */
+
+package assert
+
+import (
+	http "net/http"
+	url "net/url"
+	time "time"
+)
+
+// Conditionf uses a Comparison to assert a complex condition.
+func Conditionf(t TestingT, comp Comparison, msg string, args ...interface{}) bool {
+	return Condition(t, comp, append([]interface{}{msg}, args...)...)
+}
+
+// Containsf asserts that the specified string, list(array, slice...) or map contains the
+// specified substring or element.
+//
+//    assert.Containsf(t, "Hello World", "World", "error message %s", "formatted")
+//    assert.Containsf(t, ["Hello", "World"], "World", "error message %s", "formatted")
+//    assert.Containsf(t, {"Hello": "World"}, "Hello", "error message %s", "formatted")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func Containsf(t TestingT, s interface{}, contains interface{}, msg string, args ...interface{}) bool {
+	return Contains(t, s, contains, append([]interface{}{msg}, args...)...)
+}
+
+// Emptyf asserts that the specified object is empty.  I.e. nil, "", false, 0 or either
+// a slice or a channel with len == 0.
+//
+//  assert.Emptyf(t, obj, "error message %s", "formatted")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func Emptyf(t TestingT, object interface{}, msg string, args ...interface{}) bool {
+	return Empty(t, object, append([]interface{}{msg}, args...)...)
+}
+
+// Equalf asserts that two objects are equal.
+//
+//    assert.Equalf(t, 123, 123, "error message %s", "formatted")
+//
+// Returns whether the assertion was successful (true) or not (false).
+//
+// Pointer variable equality is determined based on the equality of the
+// referenced values (as opposed to the memory addresses). Function equality
+// cannot be determined and will always fail.
+func Equalf(t TestingT, expected interface{}, actual interface{}, msg string, args ...interface{}) bool {
+	return Equal(t, expected, actual, append([]interface{}{msg}, args...)...)
+}
+
+// EqualErrorf asserts that a function returned an error (i.e. not `nil`)
+// and that it is equal to the provided error.
+//
+//   actualObj, err := SomeFunction()
+//   assert.EqualErrorf(t, err,  expectedErrorString, "error message %s", "formatted")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func EqualErrorf(t TestingT, theError error, errString string, msg string, args ...interface{}) bool {
+	return EqualError(t, theError, errString, append([]interface{}{msg}, args...)...)
+}
+
+// EqualValuesf asserts that two objects are equal or convertable to the same types
+// and equal.
+//
+//    assert.EqualValuesf(t, uint32(123, "error message %s", "formatted"), int32(123))
+//
+// Returns whether the assertion was successful (true) or not (false).
+func EqualValuesf(t TestingT, expected interface{}, actual interface{}, msg string, args ...interface{}) bool {
+	return EqualValues(t, expected, actual, append([]interface{}{msg}, args...)...)
+}
+
+// Errorf asserts that a function returned an error (i.e. not `nil`).
+//
+//   actualObj, err := SomeFunction()
+//   if assert.Errorf(t, err, "error message %s", "formatted") {
+// 	   assert.Equal(t, expectedErrorf, err)
+//   }
+//
+// Returns whether the assertion was successful (true) or not (false).
+func Errorf(t TestingT, err error, msg string, args ...interface{}) bool {
+	return Error(t, err, append([]interface{}{msg}, args...)...)
+}
+
+// Exactlyf asserts that two objects are equal is value and type.
+//
+//    assert.Exactlyf(t, int32(123, "error message %s", "formatted"), int64(123))
+//
+// Returns whether the assertion was successful (true) or not (false).
+func Exactlyf(t TestingT, expected interface{}, actual interface{}, msg string, args ...interface{}) bool {
+	return Exactly(t, expected, actual, append([]interface{}{msg}, args...)...)
+}
+
+// Failf reports a failure through
+func Failf(t TestingT, failureMessage string, msg string, args ...interface{}) bool {
+	return Fail(t, failureMessage, append([]interface{}{msg}, args...)...)
+}
+
+// FailNowf fails test
+func FailNowf(t TestingT, failureMessage string, msg string, args ...interface{}) bool {
+	return FailNow(t, failureMessage, append([]interface{}{msg}, args...)...)
+}
+
+// Falsef asserts that the specified value is false.
+//
+//    assert.Falsef(t, myBool, "error message %s", "formatted")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func Falsef(t TestingT, value bool, msg string, args ...interface{}) bool {
+	return False(t, value, append([]interface{}{msg}, args...)...)
+}
+
+// HTTPBodyContainsf asserts that a specified handler returns a
+// body that contains a string.
+//
+//  assert.HTTPBodyContainsf(t, myHandler, "www.google.com", nil, "I'm Feeling Lucky", "error message %s", "formatted")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func HTTPBodyContainsf(t TestingT, handler http.HandlerFunc, method string, url string, values url.Values, str interface{}) bool {
+	return HTTPBodyContains(t, handler, method, url, values, str)
+}
+
+// HTTPBodyNotContainsf asserts that a specified handler returns a
+// body that does not contain a string.
+//
+//  assert.HTTPBodyNotContainsf(t, myHandler, "www.google.com", nil, "I'm Feeling Lucky", "error message %s", "formatted")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func HTTPBodyNotContainsf(t TestingT, handler http.HandlerFunc, method string, url string, values url.Values, str interface{}) bool {
+	return HTTPBodyNotContains(t, handler, method, url, values, str)
+}
+
+// HTTPErrorf asserts that a specified handler returns an error status code.
+//
+//  assert.HTTPErrorf(t, myHandler, "POST", "/a/b/c", url.Values{"a": []string{"b", "c"}}
+//
+// Returns whether the assertion was successful (true, "error message %s", "formatted") or not (false).
+func HTTPErrorf(t TestingT, handler http.HandlerFunc, method string, url string, values url.Values) bool {
+	return HTTPError(t, handler, method, url, values)
+}
+
+// HTTPRedirectf asserts that a specified handler returns a redirect status code.
+//
+//  assert.HTTPRedirectf(t, myHandler, "GET", "/a/b/c", url.Values{"a": []string{"b", "c"}}
+//
+// Returns whether the assertion was successful (true, "error message %s", "formatted") or not (false).
+func HTTPRedirectf(t TestingT, handler http.HandlerFunc, method string, url string, values url.Values) bool {
+	return HTTPRedirect(t, handler, method, url, values)
+}
+
+// HTTPSuccessf asserts that a specified handler returns a success status code.
+//
+//  assert.HTTPSuccessf(t, myHandler, "POST", "http://www.google.com", nil, "error message %s", "formatted")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func HTTPSuccessf(t TestingT, handler http.HandlerFunc, method string, url string, values url.Values) bool {
+	return HTTPSuccess(t, handler, method, url, values)
+}
+
+// Implementsf asserts that an object is implemented by the specified interface.
+//
+//    assert.Implementsf(t, (*MyInterface, "error message %s", "formatted")(nil), new(MyObject))
+func Implementsf(t TestingT, interfaceObject interface{}, object interface{}, msg string, args ...interface{}) bool {
+	return Implements(t, interfaceObject, object, append([]interface{}{msg}, args...)...)
+}
+
+// InDeltaf asserts that the two numerals are within delta of each other.
+//
+// 	 assert.InDeltaf(t, math.Pi, (22 / 7.0, "error message %s", "formatted"), 0.01)
+//
+// Returns whether the assertion was successful (true) or not (false).
+func InDeltaf(t TestingT, expected interface{}, actual interface{}, delta float64, msg string, args ...interface{}) bool {
+	return InDelta(t, expected, actual, delta, append([]interface{}{msg}, args...)...)
+}
+
+// InDeltaSlicef is the same as InDelta, except it compares two slices.
+func InDeltaSlicef(t TestingT, expected interface{}, actual interface{}, delta float64, msg string, args ...interface{}) bool {
+	return InDeltaSlice(t, expected, actual, delta, append([]interface{}{msg}, args...)...)
+}
+
+// InEpsilonf asserts that expected and actual have a relative error less than epsilon
+//
+// Returns whether the assertion was successful (true) or not (false).
+func InEpsilonf(t TestingT, expected interface{}, actual interface{}, epsilon float64, msg string, args ...interface{}) bool {
+	return InEpsilon(t, expected, actual, epsilon, append([]interface{}{msg}, args...)...)
+}
+
+// InEpsilonSlicef is the same as InEpsilon, except it compares each value from two slices.
+func InEpsilonSlicef(t TestingT, expected interface{}, actual interface{}, epsilon float64, msg string, args ...interface{}) bool {
+	return InEpsilonSlice(t, expected, actual, epsilon, append([]interface{}{msg}, args...)...)
+}
+
+// IsTypef asserts that the specified objects are of the same type.
+func IsTypef(t TestingT, expectedType interface{}, object interface{}, msg string, args ...interface{}) bool {
+	return IsType(t, expectedType, object, append([]interface{}{msg}, args...)...)
+}
+
+// JSONEqf asserts that two JSON strings are equivalent.
+//
+//  assert.JSONEqf(t, `{"hello": "world", "foo": "bar"}`, `{"foo": "bar", "hello": "world"}`, "error message %s", "formatted")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func JSONEqf(t TestingT, expected string, actual string, msg string, args ...interface{}) bool {
+	return JSONEq(t, expected, actual, append([]interface{}{msg}, args...)...)
+}
+
+// Lenf asserts that the specified object has specific length.
+// Lenf also fails if the object has a type that len() not accept.
+//
+//    assert.Lenf(t, mySlice, 3, "error message %s", "formatted")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func Lenf(t TestingT, object interface{}, length int, msg string, args ...interface{}) bool {
+	return Len(t, object, length, append([]interface{}{msg}, args...)...)
+}
+
+// Nilf asserts that the specified object is nil.
+//
+//    assert.Nilf(t, err, "error message %s", "formatted")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func Nilf(t TestingT, object interface{}, msg string, args ...interface{}) bool {
+	return Nil(t, object, append([]interface{}{msg}, args...)...)
+}
+
+// NoErrorf asserts that a function returned no error (i.e. `nil`).
+//
+//   actualObj, err := SomeFunction()
+//   if assert.NoErrorf(t, err, "error message %s", "formatted") {
+// 	   assert.Equal(t, expectedObj, actualObj)
+//   }
+//
+// Returns whether the assertion was successful (true) or not (false).
+func NoErrorf(t TestingT, err error, msg string, args ...interface{}) bool {
+	return NoError(t, err, append([]interface{}{msg}, args...)...)
+}
+
+// NotContainsf asserts that the specified string, list(array, slice...) or map does NOT contain the
+// specified substring or element.
+//
+//    assert.NotContainsf(t, "Hello World", "Earth", "error message %s", "formatted")
+//    assert.NotContainsf(t, ["Hello", "World"], "Earth", "error message %s", "formatted")
+//    assert.NotContainsf(t, {"Hello": "World"}, "Earth", "error message %s", "formatted")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func NotContainsf(t TestingT, s interface{}, contains interface{}, msg string, args ...interface{}) bool {
+	return NotContains(t, s, contains, append([]interface{}{msg}, args...)...)
+}
+
+// NotEmptyf asserts that the specified object is NOT empty.  I.e. not nil, "", false, 0 or either
+// a slice or a channel with len == 0.
+//
+//  if assert.NotEmptyf(t, obj, "error message %s", "formatted") {
+//    assert.Equal(t, "two", obj[1])
+//  }
+//
+// Returns whether the assertion was successful (true) or not (false).
+func NotEmptyf(t TestingT, object interface{}, msg string, args ...interface{}) bool {
+	return NotEmpty(t, object, append([]interface{}{msg}, args...)...)
+}
+
+// NotEqualf asserts that the specified values are NOT equal.
+//
+//    assert.NotEqualf(t, obj1, obj2, "error message %s", "formatted")
+//
+// Returns whether the assertion was successful (true) or not (false).
+//
+// Pointer variable equality is determined based on the equality of the
+// referenced values (as opposed to the memory addresses).
+func NotEqualf(t TestingT, expected interface{}, actual interface{}, msg string, args ...interface{}) bool {
+	return NotEqual(t, expected, actual, append([]interface{}{msg}, args...)...)
+}
+
+// NotNilf asserts that the specified object is not nil.
+//
+//    assert.NotNilf(t, err, "error message %s", "formatted")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func NotNilf(t TestingT, object interface{}, msg string, args ...interface{}) bool {
+	return NotNil(t, object, append([]interface{}{msg}, args...)...)
+}
+
+// NotPanicsf asserts that the code inside the specified PanicTestFunc does NOT panic.
+//
+//   assert.NotPanicsf(t, func(){ RemainCalm() }, "error message %s", "formatted")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func NotPanicsf(t TestingT, f PanicTestFunc, msg string, args ...interface{}) bool {
+	return NotPanics(t, f, append([]interface{}{msg}, args...)...)
+}
+
+// NotRegexpf asserts that a specified regexp does not match a string.
+//
+//  assert.NotRegexpf(t, regexp.MustCompile("starts", "error message %s", "formatted"), "it's starting")
+//  assert.NotRegexpf(t, "^start", "it's not starting", "error message %s", "formatted")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func NotRegexpf(t TestingT, rx interface{}, str interface{}, msg string, args ...interface{}) bool {
+	return NotRegexp(t, rx, str, append([]interface{}{msg}, args...)...)
+}
+
+// NotSubsetf asserts that the specified list(array, slice...) contains not all
+// elements given in the specified subset(array, slice...).
+//
+//    assert.NotSubsetf(t, [1, 3, 4], [1, 2], "But [1, 3, 4] does not contain [1, 2]", "error message %s", "formatted")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func NotSubsetf(t TestingT, list interface{}, subset interface{}, msg string, args ...interface{}) bool {
+	return NotSubset(t, list, subset, append([]interface{}{msg}, args...)...)
+}
+
+// NotZerof asserts that i is not the zero value for its type and returns the truth.
+func NotZerof(t TestingT, i interface{}, msg string, args ...interface{}) bool {
+	return NotZero(t, i, append([]interface{}{msg}, args...)...)
+}
+
+// Panicsf asserts that the code inside the specified PanicTestFunc panics.
+//
+//   assert.Panicsf(t, func(){ GoCrazy() }, "error message %s", "formatted")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func Panicsf(t TestingT, f PanicTestFunc, msg string, args ...interface{}) bool {
+	return Panics(t, f, append([]interface{}{msg}, args...)...)
+}
+
+// PanicsWithValuef asserts that the code inside the specified PanicTestFunc panics, and that
+// the recovered panic value equals the expected panic value.
+//
+//   assert.PanicsWithValuef(t, "crazy error", func(){ GoCrazy() }, "error message %s", "formatted")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func PanicsWithValuef(t TestingT, expected interface{}, f PanicTestFunc, msg string, args ...interface{}) bool {
+	return PanicsWithValue(t, expected, f, append([]interface{}{msg}, args...)...)
+}
+
+// Regexpf asserts that a specified regexp matches a string.
+//
+//  assert.Regexpf(t, regexp.MustCompile("start", "error message %s", "formatted"), "it's starting")
+//  assert.Regexpf(t, "start...$", "it's not starting", "error message %s", "formatted")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func Regexpf(t TestingT, rx interface{}, str interface{}, msg string, args ...interface{}) bool {
+	return Regexp(t, rx, str, append([]interface{}{msg}, args...)...)
+}
+
+// Subsetf asserts that the specified list(array, slice...) contains all
+// elements given in the specified subset(array, slice...).
+//
+//    assert.Subsetf(t, [1, 2, 3], [1, 2], "But [1, 2, 3] does contain [1, 2]", "error message %s", "formatted")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func Subsetf(t TestingT, list interface{}, subset interface{}, msg string, args ...interface{}) bool {
+	return Subset(t, list, subset, append([]interface{}{msg}, args...)...)
+}
+
+// Truef asserts that the specified value is true.
+//
+//    assert.Truef(t, myBool, "error message %s", "formatted")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func Truef(t TestingT, value bool, msg string, args ...interface{}) bool {
+	return True(t, value, append([]interface{}{msg}, args...)...)
+}
+
+// WithinDurationf asserts that the two times are within duration delta of each other.
+//
+//   assert.WithinDurationf(t, time.Now(), time.Now(), 10*time.Second, "error message %s", "formatted")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func WithinDurationf(t TestingT, expected time.Time, actual time.Time, delta time.Duration, msg string, args ...interface{}) bool {
+	return WithinDuration(t, expected, actual, delta, append([]interface{}{msg}, args...)...)
+}
+
+// Zerof asserts that i is the zero value for its type and returns the truth.
+func Zerof(t TestingT, i interface{}, msg string, args ...interface{}) bool {
+	return Zero(t, i, append([]interface{}{msg}, args...)...)
+}
diff --git a/vendor/github.com/stretchr/testify/assert/assertion_format.go.tmpl b/vendor/github.com/stretchr/testify/assert/assertion_format.go.tmpl
new file mode 100644
index 0000000..c5cc66f
--- /dev/null
+++ b/vendor/github.com/stretchr/testify/assert/assertion_format.go.tmpl
@@ -0,0 +1,4 @@
+{{.CommentFormat}}
+func {{.DocInfo.Name}}f(t TestingT, {{.ParamsFormat}}) bool {
+	return {{.DocInfo.Name}}(t, {{.ForwardedParamsFormat}})
+}
diff --git a/vendor/github.com/stretchr/testify/assert/assertion_forward.go b/vendor/github.com/stretchr/testify/assert/assertion_forward.go
index aa4311f..fcccbd0 100644
--- a/vendor/github.com/stretchr/testify/assert/assertion_forward.go
+++ b/vendor/github.com/stretchr/testify/assert/assertion_forward.go
@@ -16,18 +16,35 @@ func (a *Assertions) Condition(comp Comparison, msgAndArgs ...interface{}) bool
 	return Condition(a.t, comp, msgAndArgs...)
 }
 
+// Conditionf uses a Comparison to assert a complex condition.
+func (a *Assertions) Conditionf(comp Comparison, msg string, args ...interface{}) bool {
+	return Conditionf(a.t, comp, msg, args...)
+}
+
 // Contains asserts that the specified string, list(array, slice...) or map contains the
 // specified substring or element.
 //
-//    a.Contains("Hello World", "World", "But 'Hello World' does contain 'World'")
-//    a.Contains(["Hello", "World"], "World", "But ["Hello", "World"] does contain 'World'")
-//    a.Contains({"Hello": "World"}, "Hello", "But {'Hello': 'World'} does contain 'Hello'")
+//    a.Contains("Hello World", "World")
+//    a.Contains(["Hello", "World"], "World")
+//    a.Contains({"Hello": "World"}, "Hello")
 //
 // Returns whether the assertion was successful (true) or not (false).
 func (a *Assertions) Contains(s interface{}, contains interface{}, msgAndArgs ...interface{}) bool {
 	return Contains(a.t, s, contains, msgAndArgs...)
 }
 
+// Containsf asserts that the specified string, list(array, slice...) or map contains the
+// specified substring or element.
+//
+//    a.Containsf("Hello World", "World", "error message %s", "formatted")
+//    a.Containsf(["Hello", "World"], "World", "error message %s", "formatted")
+//    a.Containsf({"Hello": "World"}, "Hello", "error message %s", "formatted")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) Containsf(s interface{}, contains interface{}, msg string, args ...interface{}) bool {
+	return Containsf(a.t, s, contains, msg, args...)
+}
+
 // Empty asserts that the specified object is empty.  I.e. nil, "", false, 0 or either
 // a slice or a channel with len == 0.
 //
@@ -38,14 +55,25 @@ func (a *Assertions) Empty(object interface{}, msgAndArgs ...interface{}) bool {
 	return Empty(a.t, object, msgAndArgs...)
 }
 
+// Emptyf asserts that the specified object is empty.  I.e. nil, "", false, 0 or either
+// a slice or a channel with len == 0.
+//
+//  a.Emptyf(obj, "error message %s", "formatted")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) Emptyf(object interface{}, msg string, args ...interface{}) bool {
+	return Emptyf(a.t, object, msg, args...)
+}
+
 // Equal asserts that two objects are equal.
 //
-//    a.Equal(123, 123, "123 and 123 should be equal")
+//    a.Equal(123, 123)
 //
 // Returns whether the assertion was successful (true) or not (false).
 //
 // Pointer variable equality is determined based on the equality of the
-// referenced values (as opposed to the memory addresses).
+// referenced values (as opposed to the memory addresses). Function equality
+// cannot be determined and will always fail.
 func (a *Assertions) Equal(expected interface{}, actual interface{}, msgAndArgs ...interface{}) bool {
 	return Equal(a.t, expected, actual, msgAndArgs...)
 }
@@ -54,28 +82,62 @@ func (a *Assertions) Equal(expected interface{}, actual interface{}, msgAndArgs
 // and that it is equal to the provided error.
 //
 //   actualObj, err := SomeFunction()
-//   a.EqualError(err,  expectedErrorString, "An error was expected")
+//   a.EqualError(err,  expectedErrorString)
 //
 // Returns whether the assertion was successful (true) or not (false).
 func (a *Assertions) EqualError(theError error, errString string, msgAndArgs ...interface{}) bool {
 	return EqualError(a.t, theError, errString, msgAndArgs...)
 }
 
+// EqualErrorf asserts that a function returned an error (i.e. not `nil`)
+// and that it is equal to the provided error.
+//
+//   actualObj, err := SomeFunction()
+//   a.EqualErrorf(err,  expectedErrorString, "error message %s", "formatted")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) EqualErrorf(theError error, errString string, msg string, args ...interface{}) bool {
+	return EqualErrorf(a.t, theError, errString, msg, args...)
+}
+
 // EqualValues asserts that two objects are equal or convertable to the same types
 // and equal.
 //
-//    a.EqualValues(uint32(123), int32(123), "123 and 123 should be equal")
+//    a.EqualValues(uint32(123), int32(123))
 //
 // Returns whether the assertion was successful (true) or not (false).
 func (a *Assertions) EqualValues(expected interface{}, actual interface{}, msgAndArgs ...interface{}) bool {
 	return EqualValues(a.t, expected, actual, msgAndArgs...)
 }
 
+// EqualValuesf asserts that two objects are equal or convertable to the same types
+// and equal.
+//
+//    a.EqualValuesf(uint32(123, "error message %s", "formatted"), int32(123))
+//
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) EqualValuesf(expected interface{}, actual interface{}, msg string, args ...interface{}) bool {
+	return EqualValuesf(a.t, expected, actual, msg, args...)
+}
+
+// Equalf asserts that two objects are equal.
+//
+//    a.Equalf(123, 123, "error message %s", "formatted")
+//
+// Returns whether the assertion was successful (true) or not (false).
+//
+// Pointer variable equality is determined based on the equality of the
+// referenced values (as opposed to the memory addresses). Function equality
+// cannot be determined and will always fail.
+func (a *Assertions) Equalf(expected interface{}, actual interface{}, msg string, args ...interface{}) bool {
+	return Equalf(a.t, expected, actual, msg, args...)
+}
+
 // Error asserts that a function returned an error (i.e. not `nil`).
 //
 //   actualObj, err := SomeFunction()
-//   if a.Error(err, "An error was expected") {
-// 	   assert.Equal(t, err, expectedError)
+//   if a.Error(err) {
+// 	   assert.Equal(t, expectedError, err)
 //   }
 //
 // Returns whether the assertion was successful (true) or not (false).
@@ -83,15 +145,36 @@ func (a *Assertions) Error(err error, msgAndArgs ...interface{}) bool {
 	return Error(a.t, err, msgAndArgs...)
 }
 
+// Errorf asserts that a function returned an error (i.e. not `nil`).
+//
+//   actualObj, err := SomeFunction()
+//   if a.Errorf(err, "error message %s", "formatted") {
+// 	   assert.Equal(t, expectedErrorf, err)
+//   }
+//
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) Errorf(err error, msg string, args ...interface{}) bool {
+	return Errorf(a.t, err, msg, args...)
+}
+
 // Exactly asserts that two objects are equal is value and type.
 //
-//    a.Exactly(int32(123), int64(123), "123 and 123 should NOT be equal")
+//    a.Exactly(int32(123), int64(123))
 //
 // Returns whether the assertion was successful (true) or not (false).
 func (a *Assertions) Exactly(expected interface{}, actual interface{}, msgAndArgs ...interface{}) bool {
 	return Exactly(a.t, expected, actual, msgAndArgs...)
 }
 
+// Exactlyf asserts that two objects are equal is value and type.
+//
+//    a.Exactlyf(int32(123, "error message %s", "formatted"), int64(123))
+//
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) Exactlyf(expected interface{}, actual interface{}, msg string, args ...interface{}) bool {
+	return Exactlyf(a.t, expected, actual, msg, args...)
+}
+
 // Fail reports a failure through
 func (a *Assertions) Fail(failureMessage string, msgAndArgs ...interface{}) bool {
 	return Fail(a.t, failureMessage, msgAndArgs...)
@@ -102,15 +185,34 @@ func (a *Assertions) FailNow(failureMessage string, msgAndArgs ...interface{}) b
 	return FailNow(a.t, failureMessage, msgAndArgs...)
 }
 
+// FailNowf fails test
+func (a *Assertions) FailNowf(failureMessage string, msg string, args ...interface{}) bool {
+	return FailNowf(a.t, failureMessage, msg, args...)
+}
+
+// Failf reports a failure through
+func (a *Assertions) Failf(failureMessage string, msg string, args ...interface{}) bool {
+	return Failf(a.t, failureMessage, msg, args...)
+}
+
 // False asserts that the specified value is false.
 //
-//    a.False(myBool, "myBool should be false")
+//    a.False(myBool)
 //
 // Returns whether the assertion was successful (true) or not (false).
 func (a *Assertions) False(value bool, msgAndArgs ...interface{}) bool {
 	return False(a.t, value, msgAndArgs...)
 }
 
+// Falsef asserts that the specified value is false.
+//
+//    a.Falsef(myBool, "error message %s", "formatted")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) Falsef(value bool, msg string, args ...interface{}) bool {
+	return Falsef(a.t, value, msg, args...)
+}
+
 // HTTPBodyContains asserts that a specified handler returns a
 // body that contains a string.
 //
@@ -121,6 +223,16 @@ func (a *Assertions) HTTPBodyContains(handler http.HandlerFunc, method string, u
 	return HTTPBodyContains(a.t, handler, method, url, values, str)
 }
 
+// HTTPBodyContainsf asserts that a specified handler returns a
+// body that contains a string.
+//
+//  a.HTTPBodyContainsf(myHandler, "www.google.com", nil, "I'm Feeling Lucky", "error message %s", "formatted")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) HTTPBodyContainsf(handler http.HandlerFunc, method string, url string, values url.Values, str interface{}) bool {
+	return HTTPBodyContainsf(a.t, handler, method, url, values, str)
+}
+
 // HTTPBodyNotContains asserts that a specified handler returns a
 // body that does not contain a string.
 //
@@ -131,6 +243,16 @@ func (a *Assertions) HTTPBodyNotContains(handler http.HandlerFunc, method string
 	return HTTPBodyNotContains(a.t, handler, method, url, values, str)
 }
 
+// HTTPBodyNotContainsf asserts that a specified handler returns a
+// body that does not contain a string.
+//
+//  a.HTTPBodyNotContainsf(myHandler, "www.google.com", nil, "I'm Feeling Lucky", "error message %s", "formatted")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) HTTPBodyNotContainsf(handler http.HandlerFunc, method string, url string, values url.Values, str interface{}) bool {
+	return HTTPBodyNotContainsf(a.t, handler, method, url, values, str)
+}
+
 // HTTPError asserts that a specified handler returns an error status code.
 //
 //  a.HTTPError(myHandler, "POST", "/a/b/c", url.Values{"a": []string{"b", "c"}}
@@ -140,6 +262,15 @@ func (a *Assertions) HTTPError(handler http.HandlerFunc, method string, url stri
 	return HTTPError(a.t, handler, method, url, values)
 }
 
+// HTTPErrorf asserts that a specified handler returns an error status code.
+//
+//  a.HTTPErrorf(myHandler, "POST", "/a/b/c", url.Values{"a": []string{"b", "c"}}
+//
+// Returns whether the assertion was successful (true, "error message %s", "formatted") or not (false).
+func (a *Assertions) HTTPErrorf(handler http.HandlerFunc, method string, url string, values url.Values) bool {
+	return HTTPErrorf(a.t, handler, method, url, values)
+}
+
 // HTTPRedirect asserts that a specified handler returns a redirect status code.
 //
 //  a.HTTPRedirect(myHandler, "GET", "/a/b/c", url.Values{"a": []string{"b", "c"}}
@@ -149,6 +280,15 @@ func (a *Assertions) HTTPRedirect(handler http.HandlerFunc, method string, url s
 	return HTTPRedirect(a.t, handler, method, url, values)
 }
 
+// HTTPRedirectf asserts that a specified handler returns a redirect status code.
+//
+//  a.HTTPRedirectf(myHandler, "GET", "/a/b/c", url.Values{"a": []string{"b", "c"}}
+//
+// Returns whether the assertion was successful (true, "error message %s", "formatted") or not (false).
+func (a *Assertions) HTTPRedirectf(handler http.HandlerFunc, method string, url string, values url.Values) bool {
+	return HTTPRedirectf(a.t, handler, method, url, values)
+}
+
 // HTTPSuccess asserts that a specified handler returns a success status code.
 //
 //  a.HTTPSuccess(myHandler, "POST", "http://www.google.com", nil)
@@ -158,13 +298,29 @@ func (a *Assertions) HTTPSuccess(handler http.HandlerFunc, method string, url st
 	return HTTPSuccess(a.t, handler, method, url, values)
 }
 
+// HTTPSuccessf asserts that a specified handler returns a success status code.
+//
+//  a.HTTPSuccessf(myHandler, "POST", "http://www.google.com", nil, "error message %s", "formatted")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) HTTPSuccessf(handler http.HandlerFunc, method string, url string, values url.Values) bool {
+	return HTTPSuccessf(a.t, handler, method, url, values)
+}
+
 // Implements asserts that an object is implemented by the specified interface.
 //
-//    a.Implements((*MyInterface)(nil), new(MyObject), "MyObject")
+//    a.Implements((*MyInterface)(nil), new(MyObject))
 func (a *Assertions) Implements(interfaceObject interface{}, object interface{}, msgAndArgs ...interface{}) bool {
 	return Implements(a.t, interfaceObject, object, msgAndArgs...)
 }
 
+// Implementsf asserts that an object is implemented by the specified interface.
+//
+//    a.Implementsf((*MyInterface, "error message %s", "formatted")(nil), new(MyObject))
+func (a *Assertions) Implementsf(interfaceObject interface{}, object interface{}, msg string, args ...interface{}) bool {
+	return Implementsf(a.t, interfaceObject, object, msg, args...)
+}
+
 // InDelta asserts that the two numerals are within delta of each other.
 //
 // 	 a.InDelta(math.Pi, (22 / 7.0), 0.01)
@@ -179,6 +335,20 @@ func (a *Assertions) InDeltaSlice(expected interface{}, actual interface{}, delt
 	return InDeltaSlice(a.t, expected, actual, delta, msgAndArgs...)
 }
 
+// InDeltaSlicef is the same as InDelta, except it compares two slices.
+func (a *Assertions) InDeltaSlicef(expected interface{}, actual interface{}, delta float64, msg string, args ...interface{}) bool {
+	return InDeltaSlicef(a.t, expected, actual, delta, msg, args...)
+}
+
+// InDeltaf asserts that the two numerals are within delta of each other.
+//
+// 	 a.InDeltaf(math.Pi, (22 / 7.0, "error message %s", "formatted"), 0.01)
+//
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) InDeltaf(expected interface{}, actual interface{}, delta float64, msg string, args ...interface{}) bool {
+	return InDeltaf(a.t, expected, actual, delta, msg, args...)
+}
+
 // InEpsilon asserts that expected and actual have a relative error less than epsilon
 //
 // Returns whether the assertion was successful (true) or not (false).
@@ -191,11 +361,28 @@ func (a *Assertions) InEpsilonSlice(expected interface{}, actual interface{}, ep
 	return InEpsilonSlice(a.t, expected, actual, epsilon, msgAndArgs...)
 }
 
+// InEpsilonSlicef is the same as InEpsilon, except it compares each value from two slices.
+func (a *Assertions) InEpsilonSlicef(expected interface{}, actual interface{}, epsilon float64, msg string, args ...interface{}) bool {
+	return InEpsilonSlicef(a.t, expected, actual, epsilon, msg, args...)
+}
+
+// InEpsilonf asserts that expected and actual have a relative error less than epsilon
+//
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) InEpsilonf(expected interface{}, actual interface{}, epsilon float64, msg string, args ...interface{}) bool {
+	return InEpsilonf(a.t, expected, actual, epsilon, msg, args...)
+}
+
 // IsType asserts that the specified objects are of the same type.
 func (a *Assertions) IsType(expectedType interface{}, object interface{}, msgAndArgs ...interface{}) bool {
 	return IsType(a.t, expectedType, object, msgAndArgs...)
 }
 
+// IsTypef asserts that the specified objects are of the same type.
+func (a *Assertions) IsTypef(expectedType interface{}, object interface{}, msg string, args ...interface{}) bool {
+	return IsTypef(a.t, expectedType, object, msg, args...)
+}
+
 // JSONEq asserts that two JSON strings are equivalent.
 //
 //  a.JSONEq(`{"hello": "world", "foo": "bar"}`, `{"foo": "bar", "hello": "world"}`)
@@ -205,30 +392,58 @@ func (a *Assertions) JSONEq(expected string, actual string, msgAndArgs ...interf
 	return JSONEq(a.t, expected, actual, msgAndArgs...)
 }
 
+// JSONEqf asserts that two JSON strings are equivalent.
+//
+//  a.JSONEqf(`{"hello": "world", "foo": "bar"}`, `{"foo": "bar", "hello": "world"}`, "error message %s", "formatted")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) JSONEqf(expected string, actual string, msg string, args ...interface{}) bool {
+	return JSONEqf(a.t, expected, actual, msg, args...)
+}
+
 // Len asserts that the specified object has specific length.
 // Len also fails if the object has a type that len() not accept.
 //
-//    a.Len(mySlice, 3, "The size of slice is not 3")
+//    a.Len(mySlice, 3)
 //
 // Returns whether the assertion was successful (true) or not (false).
 func (a *Assertions) Len(object interface{}, length int, msgAndArgs ...interface{}) bool {
 	return Len(a.t, object, length, msgAndArgs...)
 }
 
+// Lenf asserts that the specified object has specific length.
+// Lenf also fails if the object has a type that len() not accept.
+//
+//    a.Lenf(mySlice, 3, "error message %s", "formatted")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) Lenf(object interface{}, length int, msg string, args ...interface{}) bool {
+	return Lenf(a.t, object, length, msg, args...)
+}
+
 // Nil asserts that the specified object is nil.
 //
-//    a.Nil(err, "err should be nothing")
+//    a.Nil(err)
 //
 // Returns whether the assertion was successful (true) or not (false).
 func (a *Assertions) Nil(object interface{}, msgAndArgs ...interface{}) bool {
 	return Nil(a.t, object, msgAndArgs...)
 }
 
+// Nilf asserts that the specified object is nil.
+//
+//    a.Nilf(err, "error message %s", "formatted")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) Nilf(object interface{}, msg string, args ...interface{}) bool {
+	return Nilf(a.t, object, msg, args...)
+}
+
 // NoError asserts that a function returned no error (i.e. `nil`).
 //
 //   actualObj, err := SomeFunction()
 //   if a.NoError(err) {
-// 	   assert.Equal(t, actualObj, expectedObj)
+// 	   assert.Equal(t, expectedObj, actualObj)
 //   }
 //
 // Returns whether the assertion was successful (true) or not (false).
@@ -236,18 +451,42 @@ func (a *Assertions) NoError(err error, msgAndArgs ...interface{}) bool {
 	return NoError(a.t, err, msgAndArgs...)
 }
 
+// NoErrorf asserts that a function returned no error (i.e. `nil`).
+//
+//   actualObj, err := SomeFunction()
+//   if a.NoErrorf(err, "error message %s", "formatted") {
+// 	   assert.Equal(t, expectedObj, actualObj)
+//   }
+//
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) NoErrorf(err error, msg string, args ...interface{}) bool {
+	return NoErrorf(a.t, err, msg, args...)
+}
+
 // NotContains asserts that the specified string, list(array, slice...) or map does NOT contain the
 // specified substring or element.
 //
-//    a.NotContains("Hello World", "Earth", "But 'Hello World' does NOT contain 'Earth'")
-//    a.NotContains(["Hello", "World"], "Earth", "But ['Hello', 'World'] does NOT contain 'Earth'")
-//    a.NotContains({"Hello": "World"}, "Earth", "But {'Hello': 'World'} does NOT contain 'Earth'")
+//    a.NotContains("Hello World", "Earth")
+//    a.NotContains(["Hello", "World"], "Earth")
+//    a.NotContains({"Hello": "World"}, "Earth")
 //
 // Returns whether the assertion was successful (true) or not (false).
 func (a *Assertions) NotContains(s interface{}, contains interface{}, msgAndArgs ...interface{}) bool {
 	return NotContains(a.t, s, contains, msgAndArgs...)
 }
 
+// NotContainsf asserts that the specified string, list(array, slice...) or map does NOT contain the
+// specified substring or element.
+//
+//    a.NotContainsf("Hello World", "Earth", "error message %s", "formatted")
+//    a.NotContainsf(["Hello", "World"], "Earth", "error message %s", "formatted")
+//    a.NotContainsf({"Hello": "World"}, "Earth", "error message %s", "formatted")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) NotContainsf(s interface{}, contains interface{}, msg string, args ...interface{}) bool {
+	return NotContainsf(a.t, s, contains, msg, args...)
+}
+
 // NotEmpty asserts that the specified object is NOT empty.  I.e. not nil, "", false, 0 or either
 // a slice or a channel with len == 0.
 //
@@ -260,9 +499,21 @@ func (a *Assertions) NotEmpty(object interface{}, msgAndArgs ...interface{}) boo
 	return NotEmpty(a.t, object, msgAndArgs...)
 }
 
+// NotEmptyf asserts that the specified object is NOT empty.  I.e. not nil, "", false, 0 or either
+// a slice or a channel with len == 0.
+//
+//  if a.NotEmptyf(obj, "error message %s", "formatted") {
+//    assert.Equal(t, "two", obj[1])
+//  }
+//
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) NotEmptyf(object interface{}, msg string, args ...interface{}) bool {
+	return NotEmptyf(a.t, object, msg, args...)
+}
+
 // NotEqual asserts that the specified values are NOT equal.
 //
-//    a.NotEqual(obj1, obj2, "two objects shouldn't be equal")
+//    a.NotEqual(obj1, obj2)
 //
 // Returns whether the assertion was successful (true) or not (false).
 //
@@ -272,26 +523,54 @@ func (a *Assertions) NotEqual(expected interface{}, actual interface{}, msgAndAr
 	return NotEqual(a.t, expected, actual, msgAndArgs...)
 }
 
+// NotEqualf asserts that the specified values are NOT equal.
+//
+//    a.NotEqualf(obj1, obj2, "error message %s", "formatted")
+//
+// Returns whether the assertion was successful (true) or not (false).
+//
+// Pointer variable equality is determined based on the equality of the
+// referenced values (as opposed to the memory addresses).
+func (a *Assertions) NotEqualf(expected interface{}, actual interface{}, msg string, args ...interface{}) bool {
+	return NotEqualf(a.t, expected, actual, msg, args...)
+}
+
 // NotNil asserts that the specified object is not nil.
 //
-//    a.NotNil(err, "err should be something")
+//    a.NotNil(err)
 //
 // Returns whether the assertion was successful (true) or not (false).
 func (a *Assertions) NotNil(object interface{}, msgAndArgs ...interface{}) bool {
 	return NotNil(a.t, object, msgAndArgs...)
 }
 
+// NotNilf asserts that the specified object is not nil.
+//
+//    a.NotNilf(err, "error message %s", "formatted")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) NotNilf(object interface{}, msg string, args ...interface{}) bool {
+	return NotNilf(a.t, object, msg, args...)
+}
+
 // NotPanics asserts that the code inside the specified PanicTestFunc does NOT panic.
 //
-//   a.NotPanics(func(){
-//     RemainCalm()
-//   }, "Calling RemainCalm() should NOT panic")
+//   a.NotPanics(func(){ RemainCalm() })
 //
 // Returns whether the assertion was successful (true) or not (false).
 func (a *Assertions) NotPanics(f PanicTestFunc, msgAndArgs ...interface{}) bool {
 	return NotPanics(a.t, f, msgAndArgs...)
 }
 
+// NotPanicsf asserts that the code inside the specified PanicTestFunc does NOT panic.
+//
+//   a.NotPanicsf(func(){ RemainCalm() }, "error message %s", "formatted")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) NotPanicsf(f PanicTestFunc, msg string, args ...interface{}) bool {
+	return NotPanicsf(a.t, f, msg, args...)
+}
+
 // NotRegexp asserts that a specified regexp does not match a string.
 //
 //  a.NotRegexp(regexp.MustCompile("starts"), "it's starting")
@@ -302,22 +581,84 @@ func (a *Assertions) NotRegexp(rx interface{}, str interface{}, msgAndArgs ...in
 	return NotRegexp(a.t, rx, str, msgAndArgs...)
 }
 
+// NotRegexpf asserts that a specified regexp does not match a string.
+//
+//  a.NotRegexpf(regexp.MustCompile("starts", "error message %s", "formatted"), "it's starting")
+//  a.NotRegexpf("^start", "it's not starting", "error message %s", "formatted")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) NotRegexpf(rx interface{}, str interface{}, msg string, args ...interface{}) bool {
+	return NotRegexpf(a.t, rx, str, msg, args...)
+}
+
+// NotSubset asserts that the specified list(array, slice...) contains not all
+// elements given in the specified subset(array, slice...).
+//
+//    a.NotSubset([1, 3, 4], [1, 2], "But [1, 3, 4] does not contain [1, 2]")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) NotSubset(list interface{}, subset interface{}, msgAndArgs ...interface{}) bool {
+	return NotSubset(a.t, list, subset, msgAndArgs...)
+}
+
+// NotSubsetf asserts that the specified list(array, slice...) contains not all
+// elements given in the specified subset(array, slice...).
+//
+//    a.NotSubsetf([1, 3, 4], [1, 2], "But [1, 3, 4] does not contain [1, 2]", "error message %s", "formatted")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) NotSubsetf(list interface{}, subset interface{}, msg string, args ...interface{}) bool {
+	return NotSubsetf(a.t, list, subset, msg, args...)
+}
+
 // NotZero asserts that i is not the zero value for its type and returns the truth.
 func (a *Assertions) NotZero(i interface{}, msgAndArgs ...interface{}) bool {
 	return NotZero(a.t, i, msgAndArgs...)
 }
 
+// NotZerof asserts that i is not the zero value for its type and returns the truth.
+func (a *Assertions) NotZerof(i interface{}, msg string, args ...interface{}) bool {
+	return NotZerof(a.t, i, msg, args...)
+}
+
 // Panics asserts that the code inside the specified PanicTestFunc panics.
 //
-//   a.Panics(func(){
-//     GoCrazy()
-//   }, "Calling GoCrazy() should panic")
+//   a.Panics(func(){ GoCrazy() })
 //
 // Returns whether the assertion was successful (true) or not (false).
 func (a *Assertions) Panics(f PanicTestFunc, msgAndArgs ...interface{}) bool {
 	return Panics(a.t, f, msgAndArgs...)
 }
 
+// PanicsWithValue asserts that the code inside the specified PanicTestFunc panics, and that
+// the recovered panic value equals the expected panic value.
+//
+//   a.PanicsWithValue("crazy error", func(){ GoCrazy() })
+//
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) PanicsWithValue(expected interface{}, f PanicTestFunc, msgAndArgs ...interface{}) bool {
+	return PanicsWithValue(a.t, expected, f, msgAndArgs...)
+}
+
+// PanicsWithValuef asserts that the code inside the specified PanicTestFunc panics, and that
+// the recovered panic value equals the expected panic value.
+//
+//   a.PanicsWithValuef("crazy error", func(){ GoCrazy() }, "error message %s", "formatted")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) PanicsWithValuef(expected interface{}, f PanicTestFunc, msg string, args ...interface{}) bool {
+	return PanicsWithValuef(a.t, expected, f, msg, args...)
+}
+
+// Panicsf asserts that the code inside the specified PanicTestFunc panics.
+//
+//   a.Panicsf(func(){ GoCrazy() }, "error message %s", "formatted")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) Panicsf(f PanicTestFunc, msg string, args ...interface{}) bool {
+	return Panicsf(a.t, f, msg, args...)
+}
+
 // Regexp asserts that a specified regexp matches a string.
 //
 //  a.Regexp(regexp.MustCompile("start"), "it's starting")
@@ -328,25 +669,78 @@ func (a *Assertions) Regexp(rx interface{}, str interface{}, msgAndArgs ...inter
 	return Regexp(a.t, rx, str, msgAndArgs...)
 }
 
+// Regexpf asserts that a specified regexp matches a string.
+//
+//  a.Regexpf(regexp.MustCompile("start", "error message %s", "formatted"), "it's starting")
+//  a.Regexpf("start...$", "it's not starting", "error message %s", "formatted")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) Regexpf(rx interface{}, str interface{}, msg string, args ...interface{}) bool {
+	return Regexpf(a.t, rx, str, msg, args...)
+}
+
+// Subset asserts that the specified list(array, slice...) contains all
+// elements given in the specified subset(array, slice...).
+//
+//    a.Subset([1, 2, 3], [1, 2], "But [1, 2, 3] does contain [1, 2]")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) Subset(list interface{}, subset interface{}, msgAndArgs ...interface{}) bool {
+	return Subset(a.t, list, subset, msgAndArgs...)
+}
+
+// Subsetf asserts that the specified list(array, slice...) contains all
+// elements given in the specified subset(array, slice...).
+//
+//    a.Subsetf([1, 2, 3], [1, 2], "But [1, 2, 3] does contain [1, 2]", "error message %s", "formatted")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) Subsetf(list interface{}, subset interface{}, msg string, args ...interface{}) bool {
+	return Subsetf(a.t, list, subset, msg, args...)
+}
+
 // True asserts that the specified value is true.
 //
-//    a.True(myBool, "myBool should be true")
+//    a.True(myBool)
 //
 // Returns whether the assertion was successful (true) or not (false).
 func (a *Assertions) True(value bool, msgAndArgs ...interface{}) bool {
 	return True(a.t, value, msgAndArgs...)
 }
 
+// Truef asserts that the specified value is true.
+//
+//    a.Truef(myBool, "error message %s", "formatted")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) Truef(value bool, msg string, args ...interface{}) bool {
+	return Truef(a.t, value, msg, args...)
+}
+
 // WithinDuration asserts that the two times are within duration delta of each other.
 //
-//   a.WithinDuration(time.Now(), time.Now(), 10*time.Second, "The difference should not be more than 10s")
+//   a.WithinDuration(time.Now(), time.Now(), 10*time.Second)
 //
 // Returns whether the assertion was successful (true) or not (false).
 func (a *Assertions) WithinDuration(expected time.Time, actual time.Time, delta time.Duration, msgAndArgs ...interface{}) bool {
 	return WithinDuration(a.t, expected, actual, delta, msgAndArgs...)
 }
 
+// WithinDurationf asserts that the two times are within duration delta of each other.
+//
+//   a.WithinDurationf(time.Now(), time.Now(), 10*time.Second, "error message %s", "formatted")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func (a *Assertions) WithinDurationf(expected time.Time, actual time.Time, delta time.Duration, msg string, args ...interface{}) bool {
+	return WithinDurationf(a.t, expected, actual, delta, msg, args...)
+}
+
 // Zero asserts that i is the zero value for its type and returns the truth.
 func (a *Assertions) Zero(i interface{}, msgAndArgs ...interface{}) bool {
 	return Zero(a.t, i, msgAndArgs...)
 }
+
+// Zerof asserts that i is the zero value for its type and returns the truth.
+func (a *Assertions) Zerof(i interface{}, msg string, args ...interface{}) bool {
+	return Zerof(a.t, i, msg, args...)
+}
diff --git a/vendor/github.com/stretchr/testify/assert/assertions.go b/vendor/github.com/stretchr/testify/assert/assertions.go
index d1552e5..8259050 100644
--- a/vendor/github.com/stretchr/testify/assert/assertions.go
+++ b/vendor/github.com/stretchr/testify/assert/assertions.go
@@ -4,6 +4,7 @@ import (
 	"bufio"
 	"bytes"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"math"
 	"reflect"
@@ -18,6 +19,8 @@ import (
 	"github.com/pmezard/go-difflib/difflib"
 )
 
+//go:generate go run ../_codegen/main.go -output-package=assert -template=assertion_format.go.tmpl
+
 // TestingT is an interface wrapper around *testing.T
 type TestingT interface {
 	Errorf(format string, args ...interface{})
@@ -38,7 +41,15 @@ func ObjectsAreEqual(expected, actual interface{}) bool {
 	if expected == nil || actual == nil {
 		return expected == actual
 	}
-
+	if exp, ok := expected.([]byte); ok {
+		act, ok := actual.([]byte)
+		if !ok {
+			return false
+		} else if exp == nil || act == nil {
+			return exp == nil && act == nil
+		}
+		return bytes.Equal(exp, act)
+	}
 	return reflect.DeepEqual(expected, actual)
 
 }
@@ -108,10 +119,12 @@ func CallerInfo() []string {
 		}
 
 		parts := strings.Split(file, "/")
-		dir := parts[len(parts)-2]
 		file = parts[len(parts)-1]
-		if (dir != "assert" && dir != "mock" && dir != "require") || file == "mock_test.go" {
-			callers = append(callers, fmt.Sprintf("%s:%d", file, line))
+		if len(parts) > 1 {
+			dir := parts[len(parts)-2]
+			if (dir != "assert" && dir != "mock" && dir != "require") || file == "mock_test.go" {
+				callers = append(callers, fmt.Sprintf("%s:%d", file, line))
+			}
 		}
 
 		// Drop the package
@@ -181,7 +194,7 @@ func indentMessageLines(message string, longestLabelLen int) string {
 		// no need to align first line because it starts at the correct location (after the label)
 		if i != 0 {
 			// append alignLen+1 spaces to align with "{{longestLabel}}:" before adding tab
-			outBuf.WriteString("\n\r\t" + strings.Repeat(" ", longestLabelLen +1) + "\t")
+			outBuf.WriteString("\n\r\t" + strings.Repeat(" ", longestLabelLen+1) + "\t")
 		}
 		outBuf.WriteString(scanner.Text())
 	}
@@ -223,13 +236,13 @@ func Fail(t TestingT, failureMessage string, msgAndArgs ...interface{}) bool {
 		content = append(content, labeledContent{"Messages", message})
 	}
 
-	t.Errorf("\r" + getWhitespaceString() + labeledOutput(content...))
+	t.Errorf("%s", "\r"+getWhitespaceString()+labeledOutput(content...))
 
 	return false
 }
 
 type labeledContent struct {
-	label string
+	label   string
 	content string
 }
 
@@ -258,7 +271,7 @@ func labeledOutput(content ...labeledContent) string {
 
 // Implements asserts that an object is implemented by the specified interface.
 //
-//    assert.Implements(t, (*MyInterface)(nil), new(MyObject), "MyObject")
+//    assert.Implements(t, (*MyInterface)(nil), new(MyObject))
 func Implements(t TestingT, interfaceObject interface{}, object interface{}, msgAndArgs ...interface{}) bool {
 
 	interfaceType := reflect.TypeOf(interfaceObject).Elem()
@@ -283,20 +296,25 @@ func IsType(t TestingT, expectedType interface{}, object interface{}, msgAndArgs
 
 // Equal asserts that two objects are equal.
 //
-//    assert.Equal(t, 123, 123, "123 and 123 should be equal")
+//    assert.Equal(t, 123, 123)
 //
 // Returns whether the assertion was successful (true) or not (false).
 //
 // Pointer variable equality is determined based on the equality of the
-// referenced values (as opposed to the memory addresses).
+// referenced values (as opposed to the memory addresses). Function equality
+// cannot be determined and will always fail.
 func Equal(t TestingT, expected, actual interface{}, msgAndArgs ...interface{}) bool {
+	if err := validateEqualArgs(expected, actual); err != nil {
+		return Fail(t, fmt.Sprintf("Invalid operation: %#v == %#v (%s)",
+			expected, actual, err), msgAndArgs...)
+	}
 
 	if !ObjectsAreEqual(expected, actual) {
 		diff := diff(expected, actual)
 		expected, actual = formatUnequalValues(expected, actual)
 		return Fail(t, fmt.Sprintf("Not equal: \n"+
 			"expected: %s\n"+
-			"received: %s%s", expected, actual, diff), msgAndArgs...)
+			"actual: %s%s", expected, actual, diff), msgAndArgs...)
 	}
 
 	return true
@@ -322,7 +340,7 @@ func formatUnequalValues(expected, actual interface{}) (e string, a string) {
 // EqualValues asserts that two objects are equal or convertable to the same types
 // and equal.
 //
-//    assert.EqualValues(t, uint32(123), int32(123), "123 and 123 should be equal")
+//    assert.EqualValues(t, uint32(123), int32(123))
 //
 // Returns whether the assertion was successful (true) or not (false).
 func EqualValues(t TestingT, expected, actual interface{}, msgAndArgs ...interface{}) bool {
@@ -332,7 +350,7 @@ func EqualValues(t TestingT, expected, actual interface{}, msgAndArgs ...interfa
 		expected, actual = formatUnequalValues(expected, actual)
 		return Fail(t, fmt.Sprintf("Not equal: \n"+
 			"expected: %s\n"+
-			"received: %s%s", expected, actual, diff), msgAndArgs...)
+			"actual: %s%s", expected, actual, diff), msgAndArgs...)
 	}
 
 	return true
@@ -341,7 +359,7 @@ func EqualValues(t TestingT, expected, actual interface{}, msgAndArgs ...interfa
 
 // Exactly asserts that two objects are equal is value and type.
 //
-//    assert.Exactly(t, int32(123), int64(123), "123 and 123 should NOT be equal")
+//    assert.Exactly(t, int32(123), int64(123))
 //
 // Returns whether the assertion was successful (true) or not (false).
 func Exactly(t TestingT, expected, actual interface{}, msgAndArgs ...interface{}) bool {
@@ -359,7 +377,7 @@ func Exactly(t TestingT, expected, actual interface{}, msgAndArgs ...interface{}
 
 // NotNil asserts that the specified object is not nil.
 //
-//    assert.NotNil(t, err, "err should be something")
+//    assert.NotNil(t, err)
 //
 // Returns whether the assertion was successful (true) or not (false).
 func NotNil(t TestingT, object interface{}, msgAndArgs ...interface{}) bool {
@@ -386,7 +404,7 @@ func isNil(object interface{}) bool {
 
 // Nil asserts that the specified object is nil.
 //
-//    assert.Nil(t, err, "err should be nothing")
+//    assert.Nil(t, err)
 //
 // Returns whether the assertion was successful (true) or not (false).
 func Nil(t TestingT, object interface{}, msgAndArgs ...interface{}) bool {
@@ -431,9 +449,7 @@ func isEmpty(object interface{}) bool {
 	objValue := reflect.ValueOf(object)
 
 	switch objValue.Kind() {
-	case reflect.Map:
-		fallthrough
-	case reflect.Slice, reflect.Chan:
+	case reflect.Array, reflect.Chan, reflect.Map, reflect.Slice, reflect.String:
 		{
 			return (objValue.Len() == 0)
 		}
@@ -509,7 +525,7 @@ func getLen(x interface{}) (ok bool, length int) {
 // Len asserts that the specified object has specific length.
 // Len also fails if the object has a type that len() not accept.
 //
-//    assert.Len(t, mySlice, 3, "The size of slice is not 3")
+//    assert.Len(t, mySlice, 3)
 //
 // Returns whether the assertion was successful (true) or not (false).
 func Len(t TestingT, object interface{}, length int, msgAndArgs ...interface{}) bool {
@@ -526,7 +542,7 @@ func Len(t TestingT, object interface{}, length int, msgAndArgs ...interface{})
 
 // True asserts that the specified value is true.
 //
-//    assert.True(t, myBool, "myBool should be true")
+//    assert.True(t, myBool)
 //
 // Returns whether the assertion was successful (true) or not (false).
 func True(t TestingT, value bool, msgAndArgs ...interface{}) bool {
@@ -541,7 +557,7 @@ func True(t TestingT, value bool, msgAndArgs ...interface{}) bool {
 
 // False asserts that the specified value is false.
 //
-//    assert.False(t, myBool, "myBool should be false")
+//    assert.False(t, myBool)
 //
 // Returns whether the assertion was successful (true) or not (false).
 func False(t TestingT, value bool, msgAndArgs ...interface{}) bool {
@@ -556,13 +572,17 @@ func False(t TestingT, value bool, msgAndArgs ...interface{}) bool {
 
 // NotEqual asserts that the specified values are NOT equal.
 //
-//    assert.NotEqual(t, obj1, obj2, "two objects shouldn't be equal")
+//    assert.NotEqual(t, obj1, obj2)
 //
 // Returns whether the assertion was successful (true) or not (false).
 //
 // Pointer variable equality is determined based on the equality of the
 // referenced values (as opposed to the memory addresses).
 func NotEqual(t TestingT, expected, actual interface{}, msgAndArgs ...interface{}) bool {
+	if err := validateEqualArgs(expected, actual); err != nil {
+		return Fail(t, fmt.Sprintf("Invalid operation: %#v != %#v (%s)",
+			expected, actual, err), msgAndArgs...)
+	}
 
 	if ObjectsAreEqual(expected, actual) {
 		return Fail(t, fmt.Sprintf("Should not be: %#v\n", actual), msgAndArgs...)
@@ -613,9 +633,9 @@ func includeElement(list interface{}, element interface{}) (ok, found bool) {
 // Contains asserts that the specified string, list(array, slice...) or map contains the
 // specified substring or element.
 //
-//    assert.Contains(t, "Hello World", "World", "But 'Hello World' does contain 'World'")
-//    assert.Contains(t, ["Hello", "World"], "World", "But ["Hello", "World"] does contain 'World'")
-//    assert.Contains(t, {"Hello": "World"}, "Hello", "But {'Hello': 'World'} does contain 'Hello'")
+//    assert.Contains(t, "Hello World", "World")
+//    assert.Contains(t, ["Hello", "World"], "World")
+//    assert.Contains(t, {"Hello": "World"}, "Hello")
 //
 // Returns whether the assertion was successful (true) or not (false).
 func Contains(t TestingT, s, contains interface{}, msgAndArgs ...interface{}) bool {
@@ -635,9 +655,9 @@ func Contains(t TestingT, s, contains interface{}, msgAndArgs ...interface{}) bo
 // NotContains asserts that the specified string, list(array, slice...) or map does NOT contain the
 // specified substring or element.
 //
-//    assert.NotContains(t, "Hello World", "Earth", "But 'Hello World' does NOT contain 'Earth'")
-//    assert.NotContains(t, ["Hello", "World"], "Earth", "But ['Hello', 'World'] does NOT contain 'Earth'")
-//    assert.NotContains(t, {"Hello": "World"}, "Earth", "But {'Hello': 'World'} does NOT contain 'Earth'")
+//    assert.NotContains(t, "Hello World", "Earth")
+//    assert.NotContains(t, ["Hello", "World"], "Earth")
+//    assert.NotContains(t, {"Hello": "World"}, "Earth")
 //
 // Returns whether the assertion was successful (true) or not (false).
 func NotContains(t TestingT, s, contains interface{}, msgAndArgs ...interface{}) bool {
@@ -654,6 +674,92 @@ func NotContains(t TestingT, s, contains interface{}, msgAndArgs ...interface{})
 
 }
 
+// Subset asserts that the specified list(array, slice...) contains all
+// elements given in the specified subset(array, slice...).
+//
+//    assert.Subset(t, [1, 2, 3], [1, 2], "But [1, 2, 3] does contain [1, 2]")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func Subset(t TestingT, list, subset interface{}, msgAndArgs ...interface{}) (ok bool) {
+	if subset == nil {
+		return true // we consider nil to be equal to the nil set
+	}
+
+	subsetValue := reflect.ValueOf(subset)
+	defer func() {
+		if e := recover(); e != nil {
+			ok = false
+		}
+	}()
+
+	listKind := reflect.TypeOf(list).Kind()
+	subsetKind := reflect.TypeOf(subset).Kind()
+
+	if listKind != reflect.Array && listKind != reflect.Slice {
+		return Fail(t, fmt.Sprintf("%q has an unsupported type %s", list, listKind), msgAndArgs...)
+	}
+
+	if subsetKind != reflect.Array && subsetKind != reflect.Slice {
+		return Fail(t, fmt.Sprintf("%q has an unsupported type %s", subset, subsetKind), msgAndArgs...)
+	}
+
+	for i := 0; i < subsetValue.Len(); i++ {
+		element := subsetValue.Index(i).Interface()
+		ok, found := includeElement(list, element)
+		if !ok {
+			return Fail(t, fmt.Sprintf("\"%s\" could not be applied builtin len()", list), msgAndArgs...)
+		}
+		if !found {
+			return Fail(t, fmt.Sprintf("\"%s\" does not contain \"%s\"", list, element), msgAndArgs...)
+		}
+	}
+
+	return true
+}
+
+// NotSubset asserts that the specified list(array, slice...) contains not all
+// elements given in the specified subset(array, slice...).
+//
+//    assert.NotSubset(t, [1, 3, 4], [1, 2], "But [1, 3, 4] does not contain [1, 2]")
+//
+// Returns whether the assertion was successful (true) or not (false).
+func NotSubset(t TestingT, list, subset interface{}, msgAndArgs ...interface{}) (ok bool) {
+	if subset == nil {
+		return false // we consider nil to be equal to the nil set
+	}
+
+	subsetValue := reflect.ValueOf(subset)
+	defer func() {
+		if e := recover(); e != nil {
+			ok = false
+		}
+	}()
+
+	listKind := reflect.TypeOf(list).Kind()
+	subsetKind := reflect.TypeOf(subset).Kind()
+
+	if listKind != reflect.Array && listKind != reflect.Slice {
+		return Fail(t, fmt.Sprintf("%q has an unsupported type %s", list, listKind), msgAndArgs...)
+	}
+
+	if subsetKind != reflect.Array && subsetKind != reflect.Slice {
+		return Fail(t, fmt.Sprintf("%q has an unsupported type %s", subset, subsetKind), msgAndArgs...)
+	}
+
+	for i := 0; i < subsetValue.Len(); i++ {
+		element := subsetValue.Index(i).Interface()
+		ok, found := includeElement(list, element)
+		if !ok {
+			return Fail(t, fmt.Sprintf("\"%s\" could not be applied builtin len()", list), msgAndArgs...)
+		}
+		if !found {
+			return true
+		}
+	}
+
+	return Fail(t, fmt.Sprintf("%q is a subset of %q", subset, list), msgAndArgs...)
+}
+
 // Condition uses a Comparison to assert a complex condition.
 func Condition(t TestingT, comp Comparison, msgAndArgs ...interface{}) bool {
 	result := comp()
@@ -691,9 +797,7 @@ func didPanic(f PanicTestFunc) (bool, interface{}) {
 
 // Panics asserts that the code inside the specified PanicTestFunc panics.
 //
-//   assert.Panics(t, func(){
-//     GoCrazy()
-//   }, "Calling GoCrazy() should panic")
+//   assert.Panics(t, func(){ GoCrazy() })
 //
 // Returns whether the assertion was successful (true) or not (false).
 func Panics(t TestingT, f PanicTestFunc, msgAndArgs ...interface{}) bool {
@@ -705,11 +809,28 @@ func Panics(t TestingT, f PanicTestFunc, msgAndArgs ...interface{}) bool {
 	return true
 }
 
+// PanicsWithValue asserts that the code inside the specified PanicTestFunc panics, and that
+// the recovered panic value equals the expected panic value.
+//
+//   assert.PanicsWithValue(t, "crazy error", func(){ GoCrazy() })
+//
+// Returns whether the assertion was successful (true) or not (false).
+func PanicsWithValue(t TestingT, expected interface{}, f PanicTestFunc, msgAndArgs ...interface{}) bool {
+
+	funcDidPanic, panicValue := didPanic(f)
+	if !funcDidPanic {
+		return Fail(t, fmt.Sprintf("func %#v should panic\n\r\tPanic value:\t%v", f, panicValue), msgAndArgs...)
+	}
+	if panicValue != expected {
+		return Fail(t, fmt.Sprintf("func %#v should panic with value:\t%v\n\r\tPanic value:\t%v", f, expected, panicValue), msgAndArgs...)
+	}
+
+	return true
+}
+
 // NotPanics asserts that the code inside the specified PanicTestFunc does NOT panic.
 //
-//   assert.NotPanics(t, func(){
-//     RemainCalm()
-//   }, "Calling RemainCalm() should NOT panic")
+//   assert.NotPanics(t, func(){ RemainCalm() })
 //
 // Returns whether the assertion was successful (true) or not (false).
 func NotPanics(t TestingT, f PanicTestFunc, msgAndArgs ...interface{}) bool {
@@ -723,7 +844,7 @@ func NotPanics(t TestingT, f PanicTestFunc, msgAndArgs ...interface{}) bool {
 
 // WithinDuration asserts that the two times are within duration delta of each other.
 //
-//   assert.WithinDuration(t, time.Now(), time.Now(), 10*time.Second, "The difference should not be more than 10s")
+//   assert.WithinDuration(t, time.Now(), time.Now(), 10*time.Second)
 //
 // Returns whether the assertion was successful (true) or not (false).
 func WithinDuration(t TestingT, expected, actual time.Time, delta time.Duration, msgAndArgs ...interface{}) bool {
@@ -763,6 +884,8 @@ func toFloat(x interface{}) (float64, bool) {
 		xf = float64(xn)
 	case float64:
 		xf = float64(xn)
+	case time.Duration:
+		xf = float64(xn)
 	default:
 		xok = false
 	}
@@ -785,7 +908,7 @@ func InDelta(t TestingT, expected, actual interface{}, delta float64, msgAndArgs
 	}
 
 	if math.IsNaN(af) {
-		return Fail(t, fmt.Sprintf("Actual must not be NaN"), msgAndArgs...)
+		return Fail(t, fmt.Sprintf("Expected must not be NaN"), msgAndArgs...)
 	}
 
 	if math.IsNaN(bf) {
@@ -812,7 +935,7 @@ func InDeltaSlice(t TestingT, expected, actual interface{}, delta float64, msgAn
 	expectedSlice := reflect.ValueOf(expected)
 
 	for i := 0; i < actualSlice.Len(); i++ {
-		result := InDelta(t, actualSlice.Index(i).Interface(), expectedSlice.Index(i).Interface(), delta)
+		result := InDelta(t, actualSlice.Index(i).Interface(), expectedSlice.Index(i).Interface(), delta, msgAndArgs...)
 		if !result {
 			return result
 		}
@@ -831,7 +954,7 @@ func calcRelativeError(expected, actual interface{}) (float64, error) {
 	}
 	bf, bok := toFloat(actual)
 	if !bok {
-		return 0, fmt.Errorf("expected value %q cannot be converted to float", actual)
+		return 0, fmt.Errorf("actual value %q cannot be converted to float", actual)
 	}
 
 	return math.Abs(af-bf) / math.Abs(af), nil
@@ -847,7 +970,7 @@ func InEpsilon(t TestingT, expected, actual interface{}, epsilon float64, msgAnd
 	}
 	if actualEpsilon > epsilon {
 		return Fail(t, fmt.Sprintf("Relative error is too high: %#v (expected)\n"+
-			"        < %#v (actual)", actualEpsilon, epsilon), msgAndArgs...)
+			"        < %#v (actual)", epsilon, actualEpsilon), msgAndArgs...)
 	}
 
 	return true
@@ -882,7 +1005,7 @@ func InEpsilonSlice(t TestingT, expected, actual interface{}, epsilon float64, m
 //
 //   actualObj, err := SomeFunction()
 //   if assert.NoError(t, err) {
-//	   assert.Equal(t, actualObj, expectedObj)
+//	   assert.Equal(t, expectedObj, actualObj)
 //   }
 //
 // Returns whether the assertion was successful (true) or not (false).
@@ -897,8 +1020,8 @@ func NoError(t TestingT, err error, msgAndArgs ...interface{}) bool {
 // Error asserts that a function returned an error (i.e. not `nil`).
 //
 //   actualObj, err := SomeFunction()
-//   if assert.Error(t, err, "An error was expected") {
-//	   assert.Equal(t, err, expectedError)
+//   if assert.Error(t, err) {
+//	   assert.Equal(t, expectedError, err)
 //   }
 //
 // Returns whether the assertion was successful (true) or not (false).
@@ -915,7 +1038,7 @@ func Error(t TestingT, err error, msgAndArgs ...interface{}) bool {
 // and that it is equal to the provided error.
 //
 //   actualObj, err := SomeFunction()
-//   assert.EqualError(t, err,  expectedErrorString, "An error was expected")
+//   assert.EqualError(t, err,  expectedErrorString)
 //
 // Returns whether the assertion was successful (true) or not (false).
 func EqualError(t TestingT, theError error, errString string, msgAndArgs ...interface{}) bool {
@@ -928,7 +1051,7 @@ func EqualError(t TestingT, theError error, errString string, msgAndArgs ...inte
 	if expected != actual {
 		return Fail(t, fmt.Sprintf("Error message not equal:\n"+
 			"expected: %q\n"+
-			"received: %q", expected, actual), msgAndArgs...)
+			"actual: %q", expected, actual), msgAndArgs...)
 	}
 	return true
 }
@@ -1061,6 +1184,22 @@ func diff(expected interface{}, actual interface{}) string {
 	return "\n\nDiff:\n" + diff
 }
 
+// validateEqualArgs checks whether provided arguments can be safely used in the
+// Equal/NotEqual functions.
+func validateEqualArgs(expected, actual interface{}) error {
+	if isFunction(expected) || isFunction(actual) {
+		return errors.New("cannot take func type as argument")
+	}
+	return nil
+}
+
+func isFunction(arg interface{}) bool {
+	if arg == nil {
+		return false
+	}
+	return reflect.TypeOf(arg).Kind() == reflect.Func
+}
+
 var spewConfig = spew.ConfigState{
 	Indent:                  " ",
 	DisablePointerAddresses: true,
diff --git a/vendor/github.com/stretchr/testify/assert/forward_assertions.go b/vendor/github.com/stretchr/testify/assert/forward_assertions.go
index b867e95..9ad5685 100644
--- a/vendor/github.com/stretchr/testify/assert/forward_assertions.go
+++ b/vendor/github.com/stretchr/testify/assert/forward_assertions.go
@@ -13,4 +13,4 @@ func New(t TestingT) *Assertions {
 	}
 }
 
-//go:generate go run ../_codegen/main.go -output-package=assert -template=assertion_forward.go.tmpl
+//go:generate go run ../_codegen/main.go -output-package=assert -template=assertion_forward.go.tmpl -include-format-funcs
diff --git a/vendor/github.com/stretchr/testify/assert/http_assertions.go b/vendor/github.com/stretchr/testify/assert/http_assertions.go
index fa7ab89..ba811c0 100644
--- a/vendor/github.com/stretchr/testify/assert/http_assertions.go
+++ b/vendor/github.com/stretchr/testify/assert/http_assertions.go
@@ -8,16 +8,16 @@ import (
 	"strings"
 )
 
-// httpCode is a helper that returns HTTP code of the response. It returns -1
-// if building a new request fails.
-func httpCode(handler http.HandlerFunc, method, url string, values url.Values) int {
+// httpCode is a helper that returns HTTP code of the response. It returns -1 and
+// an error if building a new request fails.
+func httpCode(handler http.HandlerFunc, method, url string, values url.Values) (int, error) {
 	w := httptest.NewRecorder()
 	req, err := http.NewRequest(method, url+"?"+values.Encode(), nil)
 	if err != nil {
-		return -1
+		return -1, err
 	}
 	handler(w, req)
-	return w.Code
+	return w.Code, nil
 }
 
 // HTTPSuccess asserts that a specified handler returns a success status code.
@@ -26,11 +26,18 @@ func httpCode(handler http.HandlerFunc, method, url string, values url.Values) i
 //
 // Returns whether the assertion was successful (true) or not (false).
 func HTTPSuccess(t TestingT, handler http.HandlerFunc, method, url string, values url.Values) bool {
-	code := httpCode(handler, method, url, values)
-	if code == -1 {
+	code, err := httpCode(handler, method, url, values)
+	if err != nil {
+		Fail(t, fmt.Sprintf("Failed to build test request, got error: %s", err))
 		return false
 	}
-	return code >= http.StatusOK && code <= http.StatusPartialContent
+
+	isSuccessCode := code >= http.StatusOK && code <= http.StatusPartialContent
+	if !isSuccessCode {
+		Fail(t, fmt.Sprintf("Expected HTTP success status code for %q but received %d", url+"?"+values.Encode(), code))
+	}
+
+	return isSuccessCode
 }
 
 // HTTPRedirect asserts that a specified handler returns a redirect status code.
@@ -39,11 +46,18 @@ func HTTPSuccess(t TestingT, handler http.HandlerFunc, method, url string, value
 //
 // Returns whether the assertion was successful (true) or not (false).
 func HTTPRedirect(t TestingT, handler http.HandlerFunc, method, url string, values url.Values) bool {
-	code := httpCode(handler, method, url, values)
-	if code == -1 {
+	code, err := httpCode(handler, method, url, values)
+	if err != nil {
+		Fail(t, fmt.Sprintf("Failed to build test request, got error: %s", err))
 		return false
 	}
-	return code >= http.StatusMultipleChoices && code <= http.StatusTemporaryRedirect
+
+	isRedirectCode := code >= http.StatusMultipleChoices && code <= http.StatusTemporaryRedirect
+	if !isRedirectCode {
+		Fail(t, fmt.Sprintf("Expected HTTP redirect status code for %q but received %d", url+"?"+values.Encode(), code))
+	}
+
+	return isRedirectCode
 }
 
 // HTTPError asserts that a specified handler returns an error status code.
@@ -52,11 +66,18 @@ func HTTPRedirect(t TestingT, handler http.HandlerFunc, method, url string, valu
 //
 // Returns whether the assertion was successful (true) or not (false).
 func HTTPError(t TestingT, handler http.HandlerFunc, method, url string, values url.Values) bool {
-	code := httpCode(handler, method, url, values)
-	if code == -1 {
+	code, err := httpCode(handler, method, url, values)
+	if err != nil {
+		Fail(t, fmt.Sprintf("Failed to build test request, got error: %s", err))
 		return false
 	}
-	return code >= http.StatusBadRequest
+
+	isErrorCode := code >= http.StatusBadRequest
+	if !isErrorCode {
+		Fail(t, fmt.Sprintf("Expected HTTP error status code for %q but received %d", url+"?"+values.Encode(), code))
+	}
+
+	return isErrorCode
 }
 
 // HTTPBody is a helper that returns HTTP body of the response. It returns