1 files changed, 66 insertions, 0 deletions
diff --git a/client/client_test.go b/client/client_test.go
new file mode 100644
index 0000000..fb1701c
--- /dev/null
+++ b/client/client_test.go
@@ -0,0 +1,66 @@
+package client
+
+import (
+	"io/ioutil"
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"testing"
+)
+
+func TestBadAuth(t *testing.T) {
+	var hf http.HandlerFunc = func(w http.ResponseWriter, r *http.Request) {
+		if r.Header.Get("authorization") != "token TEST-TOKEN" {
+			w.WriteHeader(http.StatusUnauthorized)
+			return
+		}
+		w.Write([]byte("encoded yay"))
+	}
+	tests := []struct {
+		name       string
+		tok        string
+		expectErr  bool
+		expectBody bool
+	}{
+		{"valid token", "TEST-TOKEN", false, true},
+		{"empty token", "", true, false},
+		{"invalid token", "bad token", true, false},
+	}
+	server := httptest.NewServer(hf)
+	defer server.Close()
+	c := CaesarClient{Endpoint: server.URL}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			r, err := c.EncodeMessage(strings.NewReader("secret message"))
+			if err == nil {
+				t.Errorf("should have gotten error")
+			}
+			if r != nil {
+				t.Errorf("should not have gotten a reader")
+			}
+		})
+	}
+}
+
+func TestEncode(t *testing.T) {
+	var hf http.HandlerFunc = func(w http.ResponseWriter, r *http.Request) {
+		w.Write([]byte("response"))
+	}
+	server := httptest.NewServer(hf)
+	defer server.Close()
+	c := CaesarClient{Endpoint: server.URL}
+	r, err := c.EncodeMessage(strings.NewReader("secret message"))
+	if err != nil {
+		t.Errorf("should not have gotten error: %v", err)
+	}
+	if r == nil {
+		t.Errorf("should have gotten a reader")
+	}
+	resp, err := ioutil.ReadAll(r)
+	if err != nil {
+		t.Fatalf("could not read message: %v", err)
+	}
+	if string(resp) != "response" {
+		t.Errorf("expected 'response' but got '%s'", resp)
+	}
+}