tools/cmd/cover/testdata/test.go

106 lines
1.6 KiB
Go

// Copyright 2013 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.
// This program is processed by the cover command, and then testAll is called.
// The test driver in main.go can then compare the coverage statistics with expectation.
// The word LINE is replaced by the line number in this file. When the file is executed,
// the coverage processing has changed the line numbers, so we can't use runtime.Caller.
package main
const anything = 1e9 // Just some unlikely value that means "we got here, don't care how often"
func testAll() {
testSimple()
testBlockRun()
testFor()
testSwitch()
testSelect1()
testSelect2()
}
func testSimple() {
check(LINE, 1)
}
func testFor() {
for i := 0; i < 10; i++ {
check(LINE, 10)
}
}
func testBlockRun() {
check(LINE, 1)
{
check(LINE, 1)
}
{
check(LINE, 1)
}
check(LINE, 1)
{
check(LINE, 1)
}
{
check(LINE, 1)
}
check(LINE, 1)
}
func testSwitch() {
for i := 0; i < 5; i++ {
switch i {
case 0:
check(LINE, 1)
case 1:
check(LINE, 1)
case 2:
check(LINE, 1)
default:
check(LINE, 2)
}
}
}
func testSelect1() {
c := make(chan int)
go func() {
for i := 0; i < 1000; i++ {
c <- i
}
}()
for {
select {
case <-c:
check(LINE, anything)
case <-c:
check(LINE, anything)
default:
check(LINE, 1)
return
}
}
}
func testSelect2() {
c1 := make(chan int, 1000)
c2 := make(chan int, 1000)
for i := 0; i < 1000; i++ {
c1 <- i
c2 <- i
}
for {
select {
case <-c1:
check(LINE, 1000)
case <-c2:
check(LINE, 1000)
default:
check(LINE, 1)
return
}
}
}