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89 lines
1.7 KiB
Go
89 lines
1.7 KiB
Go
package main
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import (
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"bytes"
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"fmt"
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"log"
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"os"
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"os/exec"
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"strings"
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"testing"
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)
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func TestMain(m *testing.M) {
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switch os.Getenv("TEST_MAIN") {
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case "":
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os.Exit(m.Run())
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case "echo":
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fmt.Println(strings.Join(os.Args[1:], " "))
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case "exit":
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os.Exit(42)
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}
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}
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func TestExec(t *testing.T) {
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logger := log.New(bytes.NewBuffer([]byte{}), "", 0)
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commander := DefaultCommander{logger}
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cmd := exec.Command(os.Args[0], "42")
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cmd.Env = append(os.Environ(), "TEST_MAIN=echo")
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output, err := commander.Exec(cmd)
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if err != nil {
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t.Fatalf("unexpected error %v", err)
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}
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if output != "42" {
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t.Errorf("expected 42, got %q", output)
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}
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}
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func TestExecError(t *testing.T) {
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logger := log.New(bytes.NewBuffer([]byte{}), "", 0)
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commander := DefaultCommander{logger}
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cmd := exec.Command(os.Args[0], "42")
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cmd.Env = append(os.Environ(), "TEST_MAIN=exit")
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_, err := commander.Exec(cmd)
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if err == nil {
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t.Errorf("expected error")
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}
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got := cmd.ProcessState.ExitCode()
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if got != 42 {
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t.Errorf("expected %d, got %d", 42, got)
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}
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}
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func TestExecSilently(t *testing.T) {
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logger := log.New(bytes.NewBuffer([]byte{}), "", 0)
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commander := DefaultCommander{logger}
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cmd := exec.Command(os.Args[0], "42")
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cmd.Env = append(os.Environ(), "TEST_MAIN=echo")
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err := commander.ExecSilently(cmd)
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if err != nil {
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t.Fatalf("unexpected error %v", err)
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}
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}
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func TestExecSilentlyError(t *testing.T) {
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logger := log.New(bytes.NewBuffer([]byte{}), "", 0)
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commander := DefaultCommander{logger}
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cmd := exec.Command(os.Args[0], "42")
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cmd.Env = append(os.Environ(), "TEST_MAIN=exit")
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err := commander.ExecSilently(cmd)
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if err == nil {
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t.Errorf("expected error")
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}
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got := cmd.ProcessState.ExitCode()
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if got != 42 {
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t.Errorf("expected %d, got %d", 42, got)
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}
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}
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