Add test helpers for testdata-based and HTTP assertions

Author: epels

internal/messagebirdtest/helper.go

@@ -1,16 +1,17 @@
 package messagebirdtest
 
 import (
+	"bytes"
 	"io/ioutil"
 	"path/filepath"
 	"testing"
 )
 
 const testdataDir = "testdata"
 
-// testdata returns a file's bytes based on the path relative to the testdata
+// Testdata returns a file's bytes based on the path relative to the testdata
 // directory. It fails the test if the testdata file can not be read.
-func testdata(t *testing.T, relativePath string) []byte {
+func Testdata(t *testing.T, relativePath string) []byte {
 	path := filepath.Join(testdataDir, relativePath)
 
 	b, err := ioutil.ReadFile(path)
@@ -20,3 +21,24 @@ func testdata(t *testing.T, relativePath string) []byte {
 
 	return b
 }
+
+// AssertTestdata gets testdata and asserts it equals actual.
+func AssertTestdata(t *testing.T, relativePath string, actual []byte) {
+	expected := Testdata(t, relativePath)
+
+	if !bytes.Equal(expected, actual) {
+		t.Fatalf("expected %s, got %s", expected, actual)
+	}
+}
+
+// AssertEndpointCalled fails the test if the last request was not made to the
+// provided endpoint (e.g. combination of HTTP method and path).
+func AssertEndpointCalled(t *testing.T, method, path string) {
+	if Request.Method != method {
+		t.Fatalf("expected %s, got %s", method, Request.Method)
+	}
+
+	if escapedPath := Request.URL.EscapedPath(); escapedPath != path {
+		t.Fatalf("expected %s, got %s", path, escapedPath)
+	}
+}