mirror of
https://github.com/golang/go
synced 2024-11-05 17:16:10 -07:00
958ab4f550
For golang/go#11811. Change-Id: Icf16a2d47fcf2fe0d79dd825ccb851a3d63a660f Reviewed-on: https://go-review.googlesource.com/13268 Reviewed-by: Rob Pike <r@golang.org> Reviewed-by: David Crawshaw <crawshaw@golang.org>
95 lines
2.3 KiB
Go
95 lines
2.3 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.
|
|
|
|
// No testdata on Android.
|
|
|
|
// +build !android
|
|
|
|
package main_test
|
|
|
|
import (
|
|
"bytes"
|
|
"fmt"
|
|
"io/ioutil"
|
|
"os"
|
|
"os/exec"
|
|
"path/filepath"
|
|
"testing"
|
|
)
|
|
|
|
const (
|
|
// Data directory, also the package directory for the test.
|
|
testdata = "testdata"
|
|
|
|
// Binaries we compile.
|
|
testcover = "./testcover.exe"
|
|
)
|
|
|
|
var (
|
|
// Files we use.
|
|
testMain = filepath.Join(testdata, "main.go")
|
|
testTest = filepath.Join(testdata, "test.go")
|
|
coverInput = filepath.Join(testdata, "test_line.go")
|
|
coverOutput = filepath.Join(testdata, "test_cover.go")
|
|
)
|
|
|
|
var debug = false // Keeps the rewritten files around if set.
|
|
|
|
// Run this shell script, but do it in Go so it can be run by "go test".
|
|
//
|
|
// replace the word LINE with the line number < testdata/test.go > testdata/test_line.go
|
|
// go build -o ./testcover
|
|
// ./testcover -mode=count -var=CoverTest -o ./testdata/test_cover.go testdata/test_line.go
|
|
// go run ./testdata/main.go ./testdata/test.go
|
|
//
|
|
func TestCover(t *testing.T) {
|
|
// Read in the test file (testTest) and write it, with LINEs specified, to coverInput.
|
|
file, err := ioutil.ReadFile(testTest)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
lines := bytes.Split(file, []byte("\n"))
|
|
for i, line := range lines {
|
|
lines[i] = bytes.Replace(line, []byte("LINE"), []byte(fmt.Sprint(i+1)), -1)
|
|
}
|
|
err = ioutil.WriteFile(coverInput, bytes.Join(lines, []byte("\n")), 0666)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
// defer removal of test_line.go
|
|
if !debug {
|
|
defer os.Remove(coverInput)
|
|
}
|
|
|
|
// go build -o testcover
|
|
cmd := exec.Command("go", "build", "-o", testcover)
|
|
run(cmd, t)
|
|
|
|
// defer removal of testcover
|
|
defer os.Remove(testcover)
|
|
|
|
// ./testcover -mode=count -var=coverTest -o ./testdata/test_cover.go testdata/test_line.go
|
|
cmd = exec.Command(testcover, "-mode=count", "-var=coverTest", "-o", coverOutput, coverInput)
|
|
run(cmd, t)
|
|
|
|
// defer removal of ./testdata/test_cover.go
|
|
if !debug {
|
|
defer os.Remove(coverOutput)
|
|
}
|
|
|
|
// go run ./testdata/main.go ./testdata/test.go
|
|
cmd = exec.Command("go", "run", testMain, coverOutput)
|
|
run(cmd, t)
|
|
}
|
|
|
|
func run(c *exec.Cmd, t *testing.T) {
|
|
c.Stdout = os.Stdout
|
|
c.Stderr = os.Stderr
|
|
err := c.Run()
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
}
|