| # Test TestMain |
| go test standalone_main_normal_test.go |
| ! stdout '^ok.*\[no tests to run\]' |
| ! stderr '^ok.*\[no tests to run\]' |
| stdout '^ok' |
| |
| # Test TestMain sees testing flags |
| go test standalone_testmain_flag_test.go |
| stdout '^ok.*\[no tests to run\]' |
| |
| # Test TestMain with wrong signature (Issue #22388) |
| ! go test standalone_main_wrong_test.go |
| stderr 'wrong signature for TestMain, must be: func TestMain\(m \*testing.M\)' |
| |
| # Test TestMain does not call os.Exit (Issue #34129) |
| ! go test standalone_testmain_not_call_os_exit_test.go |
| ! stdout '^ok' |
| |
| -- standalone_main_normal_test.go -- |
| // Copyright 2017 The Go Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file. |
| |
| package standalone_main_normal_test |
| |
| import "testing" |
| |
| func TestMain(t *testing.T) { |
| } |
| -- standalone_main_wrong_test.go -- |
| // Copyright 2017 The Go Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file. |
| |
| package standalone_main_wrong_test |
| |
| import "testing" |
| |
| func TestMain(m *testing.Main) { |
| } |
| -- standalone_testmain_flag_test.go -- |
| // Copyright 2019 The Go Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file. |
| |
| package standalone_testmain_flag_test |
| |
| import ( |
| "flag" |
| "fmt" |
| "os" |
| "testing" |
| ) |
| |
| func TestMain(m *testing.M) { |
| // A TestMain should be able to access testing flags if it calls |
| // flag.Parse without needing to use testing.Init. |
| flag.Parse() |
| found := false |
| flag.VisitAll(func(f *flag.Flag) { |
| if f.Name == "test.count" { |
| found = true |
| } |
| }) |
| if !found { |
| fmt.Println("testing flags not registered") |
| os.Exit(1) |
| } |
| os.Exit(m.Run()) |
| } |
| -- standalone_testmain_not_call_os_exit_test.go -- |
| // Copyright 2020 The Go Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file. |
| |
| package standalone_testmain_not_call_os_exit_test |
| |
| import ( |
| "testing" |
| ) |
| |
| func TestWillFail(t *testing.T) { |
| t.Error("this test will fail.") |
| } |
| |
| func TestMain(m *testing.M) { |
| defer func() { |
| recover() |
| }() |
| exit := m.Run() |
| panic(exit) |
| } |