forked from restic/restic
/
run_tests.go
184 lines (146 loc) · 2.9 KB
/
run_tests.go
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// +build ignore
package main
import (
"bufio"
"fmt"
"io"
"io/ioutil"
"os"
"os/exec"
"path/filepath"
"strings"
)
func specialDir(name string) bool {
if name == "." {
return false
}
base := filepath.Base(name)
return base[0] == '_' || base[0] == '.'
}
func emptyDir(name string) bool {
dir, err := os.Open(name)
defer dir.Close()
if err != nil {
fmt.Fprintf(os.Stderr, "unable to open directory %v: %v\n", name, err)
return true
}
fis, err := dir.Readdir(-1)
if err != nil {
fmt.Fprintf(os.Stderr, "Readdirnames(%v): %v\n", name, err)
return true
}
for _, fi := range fis {
if fi.IsDir() {
continue
}
if filepath.Ext(fi.Name()) == ".go" {
return false
}
}
return true
}
func forceRelativeDirname(dirname string) string {
if dirname == "." {
return dirname
}
if strings.HasPrefix(dirname, "./") {
return dirname
}
return "./" + dirname
}
func mergeCoverprofile(file *os.File, out io.Writer) error {
_, err := file.Seek(0, 0)
if err != nil {
return err
}
rd := bufio.NewReader(file)
_, err = rd.ReadString('\n')
if err == io.EOF {
return nil
}
if err != nil {
return err
}
_, err = io.Copy(out, rd)
if err != nil {
return err
}
err = file.Close()
if err != nil {
return err
}
return err
}
func testPackage(pkg string, params []string, out io.Writer) error {
file, err := ioutil.TempFile("", "test-coverage-")
defer os.Remove(file.Name())
defer file.Close()
if err != nil {
return err
}
args := []string{"test", "-cover", "-covermode", "set", "-coverprofile",
file.Name(), pkg}
args = append(args, params...)
cmd := exec.Command("go", args...)
cmd.Stderr = os.Stderr
cmd.Stdout = os.Stdout
err = cmd.Run()
if err != nil {
return err
}
return mergeCoverprofile(file, out)
}
func main() {
if len(os.Args) < 2 {
fmt.Fprintln(os.Stderr, "USAGE: run_tests COVERPROFILE [TESTFLAGS] [-- [PATHS]]")
os.Exit(1)
}
target := os.Args[1]
args := os.Args[2:]
paramsForTest := []string{}
dirs := []string{}
for i, arg := range args {
if arg == "--" {
dirs = args[i+1:]
break
}
paramsForTest = append(paramsForTest, arg)
}
if len(dirs) == 0 {
dirs = append(dirs, ".")
}
file, err := os.Create(target)
if err != nil {
fmt.Fprintf(os.Stderr, "create coverprofile failed: %v\n", err)
os.Exit(1)
}
fmt.Fprintln(file, "mode: set")
failedTests := false
for _, dir := range dirs {
err := filepath.Walk(dir,
func(p string, fi os.FileInfo, e error) error {
if e != nil {
return e
}
if !fi.IsDir() {
return nil
}
if specialDir(p) {
return filepath.SkipDir
}
if emptyDir(p) {
return nil
}
return testPackage(forceRelativeDirname(p), paramsForTest, file)
})
if err != nil {
fmt.Fprintf(os.Stderr, "walk(%q): %v\n", dir, err)
failedTests = true
}
}
err = file.Close()
fmt.Printf("coverprofile: %v\n", file.Name())
if failedTests {
os.Exit(1)
}
}