/
exec.go
80 lines (65 loc) · 1.54 KB
/
exec.go
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package test
import (
"bytes"
"fmt"
"os"
"os/exec"
"strings"
"syscall"
"testing"
"github.com/convox/rack/Godeps/_workspace/src/github.com/stretchr/testify/assert"
)
type ExecRun struct {
Command string
Env map[string]string
Exit int
Dir string
Stdin string
Stdout string
OutMatch string
Stderr string
}
func (er ExecRun) Test(t *testing.T) {
stdout, stderr, code, err := er.exec()
assert.Nil(t, err, "should be nil")
assert.Equal(t, er.Exit, code, "exit code should be equal")
if er.Stdout != "" {
assert.Equal(t, er.Stdout, stdout, "stdout should be equal")
}
if er.OutMatch != "" {
assert.Contains(t, stdout, er.OutMatch,
fmt.Sprintf("stdout %q should contain %q", stdout, er.OutMatch))
}
if er.Stderr != "" {
assert.Contains(t, stderr, er.Stderr,
fmt.Sprintf("stderr %q should contain %q", stderr, er.Stderr))
}
}
func (er ExecRun) exec() (string, string, int, error) {
cmd := exec.Command("sh", "-c", er.Command)
stdout := &bytes.Buffer{}
stderr := &bytes.Buffer{}
cmd.Stdout = stdout
cmd.Stderr = stderr
cmd.Dir = er.Dir
cmd.Env = os.Environ()
for k, v := range er.Env {
cmd.Env = append(cmd.Env, fmt.Sprintf("%s=%s", k, v))
}
if er.Stdin != "" {
cmd.Stdin = strings.NewReader(er.Stdin)
}
code := exitCode(cmd.Run())
return stdout.String(), stderr.String(), code, nil
}
func exitCode(err error) int {
if ee, ok := err.(*exec.ExitError); ok {
if status, ok := ee.Sys().(syscall.WaitStatus); ok {
return status.ExitStatus()
}
}
if err != nil {
return -1
}
return 0
}