| // Copyright 2021 Google LLC |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| package bigquery |
| |
| import ( |
| "errors" |
| "io" |
| "net/http" |
| "net/url" |
| "testing" |
| |
| "golang.org/x/xerrors" |
| "google.golang.org/api/googleapi" |
| ) |
| |
| func TestRetryableErrors(t *testing.T) { |
| for _, tc := range []struct { |
| description string |
| in error |
| want bool |
| }{ |
| { |
| "nil error", |
| nil, |
| false, |
| }, |
| { |
| "http stream closed", |
| errors.New("http2: stream closed"), |
| true, |
| }, |
| { |
| "io ErrUnexpectedEOF", |
| io.ErrUnexpectedEOF, |
| true, |
| }, |
| { |
| "unavailable", |
| &googleapi.Error{ |
| Code: http.StatusServiceUnavailable, |
| Message: "foo", |
| }, |
| true, |
| }, |
| { |
| "url connection error", |
| &url.Error{Op: "blah", URL: "blah", Err: errors.New("connection refused")}, |
| true, |
| }, |
| { |
| "url other error", |
| &url.Error{Op: "blah", URL: "blah", Err: errors.New("blah")}, |
| false, |
| }, |
| { |
| "wrapped retryable", |
| xerrors.Errorf("test of wrapped retryable: %w", &googleapi.Error{ |
| Code: http.StatusServiceUnavailable, |
| Message: "foo", |
| Errors: []googleapi.ErrorItem{ |
| {Reason: "backendError", Message: "foo"}, |
| }, |
| }), |
| true, |
| }, |
| { |
| "wrapped non-retryable", |
| xerrors.Errorf("test of wrapped retryable: %w", errors.New("blah")), |
| false, |
| }, |
| { |
| // not retried per https://google.aip.dev/194 |
| "internal error", |
| &googleapi.Error{ |
| Code: http.StatusInternalServerError, |
| }, |
| true, |
| }, |
| { |
| "internal w/backend reason", |
| &googleapi.Error{ |
| Code: http.StatusServiceUnavailable, |
| Message: "foo", |
| Errors: []googleapi.ErrorItem{ |
| {Reason: "backendError", Message: "foo"}, |
| }, |
| }, |
| true, |
| }, |
| { |
| "internal w/rateLimitExceeded reason", |
| &googleapi.Error{ |
| Code: http.StatusServiceUnavailable, |
| Message: "foo", |
| Errors: []googleapi.ErrorItem{ |
| {Reason: "rateLimitExceeded", Message: "foo"}, |
| }, |
| }, |
| true, |
| }, |
| { |
| "bad gateway error", |
| &googleapi.Error{ |
| Code: http.StatusBadGateway, |
| Message: "foo", |
| }, |
| true, |
| }, |
| } { |
| got := retryableError(tc.in, defaultRetryReasons) |
| if got != tc.want { |
| t.Errorf("case (%s) mismatch: got %t want %t", tc.description, got, tc.want) |
| } |
| } |
| } |