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64 lines
2.0 KiB
64 lines
2.0 KiB
// Copyright (c) 2016 Uber Technologies, Inc. |
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// |
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// Permission is hereby granted, free of charge, to any person obtaining a copy |
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// of this software and associated documentation files (the "Software"), to deal |
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// in the Software without restriction, including without limitation the rights |
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
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// copies of the Software, and to permit persons to whom the Software is |
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// furnished to do so, subject to the following conditions: |
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// |
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// The above copyright notice and this permission notice shall be included in |
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// all copies or substantial portions of the Software. |
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// |
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
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// THE SOFTWARE. |
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// Package exit provides stubs so that unit tests can exercise code that calls |
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// os.Exit(1). |
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package exit |
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import "os" |
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var real = func() { os.Exit(1) } |
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// Exit normally terminates the process by calling os.Exit(1). If the package |
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// is stubbed, it instead records a call in the testing spy. |
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func Exit() { |
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real() |
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} |
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// A StubbedExit is a testing fake for os.Exit. |
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type StubbedExit struct { |
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Exited bool |
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prev func() |
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} |
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// Stub substitutes a fake for the call to os.Exit(1). |
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func Stub() *StubbedExit { |
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s := &StubbedExit{prev: real} |
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real = s.exit |
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return s |
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} |
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// WithStub runs the supplied function with Exit stubbed. It returns the stub |
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// used, so that users can test whether the process would have crashed. |
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func WithStub(f func()) *StubbedExit { |
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s := Stub() |
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defer s.Unstub() |
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f() |
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return s |
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} |
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// Unstub restores the previous exit function. |
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func (se *StubbedExit) Unstub() { |
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real = se.prev |
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} |
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func (se *StubbedExit) exit() { |
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se.Exited = true |
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}
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