Migrate tests from "api4/team_test.go" to use testify (#12902)

api4/apitestlib.go

@@ -574,7 +574,9 @@ func CheckEtag(t *testing.T, data interface{}, resp *model.Response) {
 func CheckNoError(t *testing.T, resp *model.Response) {
 	t.Helper()
 
-	require.Nil(t, resp.Error)
+	if resp.Error != nil {
+		require.FailNow(t, "Expected no error, got %q", resp.Error.Error())
+	}
 }
 
 func checkHTTPStatus(t *testing.T, resp *model.Response, expectedStatus int, expectError bool) {
@@ -637,8 +639,8 @@ func CheckInternalErrorStatus(t *testing.T, resp *model.Response) {
 func CheckErrorMessage(t *testing.T, resp *model.Response, errorId string) {
 	t.Helper()
 
-	require.NotNil(t, resp.Error)
+	require.NotNilf(t, resp.Error, "should have errored with message: %s", errorId)
-	require.Equal(t, resp.Error.Id, errorId, "incorrect error message")
+	require.Equalf(t, resp.Error.Id, errorId, "incorrect error message, actual: %s, expected: %s", resp.Error.Id, errorId)
 }
 
 func CheckStartsWith(t *testing.T, value, prefix, message string) {