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Name	Size	Permission
internal	[ DIR ]	drwxr-xr-x
iotest	[ DIR ]	drwxr-xr-x
quick	[ DIR ]	drwxr-xr-x
allocs.go	1.36 KB	-rw-r--r--
allocs_test.go	825 B	-rw-r--r--
benchmark.go	22.34 KB	-rw-r--r--
benchmark_test.go	3.94 KB	-rw-r--r--
cover.go	3.26 KB	-rw-r--r--
example.go	2.5 KB	-rw-r--r--
export_test.go	207 B	-rw-r--r--
helper_test.go	1.63 KB	-rw-r--r--
helperfuncs_test.go	1.34 KB	-rw-r--r--
match.go	3.51 KB	-rw-r--r--
match_test.go	5.11 KB	-rw-r--r--
panic_test.go	6.04 KB	-rw-r--r--
run_example.go	1.21 KB	-rw-r--r--
run_example_js.go	1.68 KB	-rw-r--r--
sub_test.go	21.82 KB	-rw-r--r--
testing.go	47.33 KB	-rw-r--r--
testing_test.go	448 B	-rw-r--r--

Code Editor : helperfuncs_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 testing

import "sync"

// The line numbering of this file is important for TestTBHelper.

func notHelper(t *T, msg string) {
	t.Error(msg)
}

func helper(t *T, msg string) {
	t.Helper()
	t.Error(msg)
}

func notHelperCallingHelper(t *T, msg string) {
	helper(t, msg)
}

func helperCallingHelper(t *T, msg string) {
	t.Helper()
	helper(t, msg)
}

func testHelper(t *T) {
	// Check combinations of directly and indirectly
	// calling helper functions.
	notHelper(t, "0")
	helper(t, "1")
	notHelperCallingHelper(t, "2")
	helperCallingHelper(t, "3")

// Check a function literal closing over t that uses Helper.
	fn := func(msg string) {
		t.Helper()
		t.Error(msg)
	}
	fn("4")

t.Run("sub", func(t *T) {
		helper(t, "5")
		notHelperCallingHelper(t, "6")
		// Check that calling Helper from inside a subtest entry function
		// works as if it were in an ordinary function call.
		t.Helper()
		t.Error("7")
	})

// Check that calling Helper from inside a top-level test function
	// has no effect.
	t.Helper()
	t.Error("8")
}

func parallelTestHelper(t *T) {
	var wg sync.WaitGroup
	for i := 0; i < 5; i++ {
		wg.Add(1)
		go func() {
			notHelperCallingHelper(t, "parallel")
			wg.Done()
		}()
	}
	wg.Wait()
}

${this.title}

Code Editor : helperfuncs_test.go