Merge pull request cloudflare#616 from cloudflare/error-helpers-for-m…

…atching-slices

errors: Add helper methods for searching in slices

errors.go

@@ -98,3 +98,26 @@ func (e *APIRequestError) ClientError() bool {
 func (e *APIRequestError) ClientRateLimited() bool {
 	return e.StatusCode == http.StatusTooManyRequests
 }
+
+// InternalErrorCodeIs returns a boolean whether or not the desired internal
+// error code is present in `e.InternalErrorCodes`.
+func (e *APIRequestError) InternalErrorCodeIs(code int) bool {
+	for _, errCode := range e.InternalErrorCodes() {
+		if errCode == code {
+			return true
+		}
+	}
+
+	return false
+}
+
+// ErrorMessageContains returns a boolean whether or not a substring exists in
+// any of the `e.ErrorMessages` slice entries.
+func (e *APIRequestError) ErrorMessageContains(s string) bool {
+	for _, errMsg := range e.ErrorMessages() {
+		if strings.Contains(errMsg, s) {
+			return true
+		}
+	}
+	return false
+}

errors_test.go

@@ -176,3 +176,21 @@ func TestAPIRequestError_ClientRateLimited(t *testing.T) {
 		})
 	}
 }
+
+func TestAPIRequestError_InternalErrorCodeIs(t *testing.T) {
+	err := &APIRequestError{Errors: []ResponseInfo{
+		{Code: 1001},
+		{Code: 2001},
+		{Code: 3001},
+	}}
+	assert.Equal(t, err.InternalErrorCodeIs(3001), true)
+}
+
+func TestAPIRequestError_ErrorMessageContains(t *testing.T) {
+	err := &APIRequestError{Errors: []ResponseInfo{
+		{Message: "dns thing broke"},
+		{Message: "application thing broke"},
+		{Message: "network thing broke"},
+	}}
+	assert.Equal(t, err.ErrorMessageContains("application thing broke"), true)
+}