refact(all): Use testing.TB for test helpers

Our test helper packages were not possible to use
with benchmarks. This refactor switches to testing.TB
to allow both tests and benchmarks to use the helpers.

internal/tests/api/testing.go

@@ -14,7 +14,7 @@ import (
 
 // CloudEventFromFile will marshal a single cloud event from the provided file
 // name
-func CloudEventFromFile(t *testing.T, fileName string) *cloudevents.Event {
+func CloudEventFromFile(t testing.TB, fileName string) *cloudevents.Event {
 	t.Helper()
 	b, err := ioutil.ReadFile(fileName)
 	assert.NoError(t, err)
@@ -26,7 +26,7 @@ func CloudEventFromFile(t *testing.T, fileName string) *cloudevents.Event {
 
 // GetEventDetails is a testing helper will return the details from the event
 // payload for a given messageType (request or response)
-func GetEventDetails(t *testing.T, e *cloudevents.Event, messageType string) map[string]interface{} {
+func GetEventDetails(t testing.TB, e *cloudevents.Event, messageType string) map[string]interface{} {
 	t.Helper()
 	require := require.New(t)
 	require.NotNil(e)
@@ -42,7 +42,7 @@ func GetEventDetails(t *testing.T, e *cloudevents.Event, messageType string) map
 
 // AssertRedactedValues will assert that the values for the given keys within
 // the data have been redacted
-func AssertRedactedValues(t *testing.T, data interface{}, keys ...string) {
+func AssertRedactedValues(t testing.TB, data interface{}, keys ...string) {
 	t.Helper()
 	assert, require := assert.New(t), require.New(t)
 	require.NotNil(data)