83 lines
1.8 KiB
Go
83 lines
1.8 KiB
Go
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// Copyright 2014 The Prometheus Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package errcapture
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import (
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"errors"
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"io"
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"testing"
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)
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type testCloser struct {
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err error
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}
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func (c testCloser) Close() error {
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return c.err
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}
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func TestDo(t *testing.T) {
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for _, tcase := range []struct {
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err error
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closer io.Closer
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expectedErrStr string
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}{
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{
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err: nil,
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closer: testCloser{err: nil},
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expectedErrStr: "",
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},
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{
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err: errors.New("test"),
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closer: testCloser{err: nil},
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expectedErrStr: "test",
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},
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{
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err: nil,
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closer: testCloser{err: errors.New("test")},
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expectedErrStr: "1 error(s) occurred:\n* close: test",
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},
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{
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err: errors.New("test"),
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closer: testCloser{err: errors.New("test")},
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expectedErrStr: "2 error(s) occurred:\n* test\n* close: test",
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},
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} {
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if ok := t.Run("", func(t *testing.T) {
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ret := tcase.err
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Do(&ret, tcase.closer.Close, "close")
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if tcase.expectedErrStr == "" {
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if ret != nil {
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t.Error("Expected error to be nil")
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t.Fail()
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}
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} else {
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if ret == nil {
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t.Error("Expected error to be not nil")
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t.Fail()
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}
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if tcase.expectedErrStr != ret.Error() {
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t.Errorf("%s != %s", tcase.expectedErrStr, ret.Error())
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t.Fail()
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}
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}
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}); !ok {
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return
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}
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}
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}
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