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package commands_test
import (
"bytes"
"context"
"flag"
"io/ioutil"
"os"
"path/filepath"
"strings"
"testing"
"github.com/MichaelMure/git-bug/commands"
"github.com/MichaelMure/git-bug/repository"
"github.com/spf13/cobra"
"github.com/stretchr/testify/require"
)
var update = flag.Bool("update", false, "pass -update to the test runner to update golden files")
type testEnv struct {
cwd string
repo *repository.GoGitRepo
cmd *cobra.Command
out *bytes.Buffer
}
func newTestEnv(t *testing.T) *testEnv {
t.Helper()
cwd, err := ioutil.TempDir("", "")
require.NoError(t, err)
t.Cleanup(func() {
require.NoError(t, os.RemoveAll(cwd))
})
repo, err := repository.InitGoGitRepo(cwd)
require.NoError(t, err)
t.Cleanup(func() {
require.NoError(t, repo.Close())
})
out := new(bytes.Buffer)
cmd := commands.NewRootCommand()
cmd.SetArgs([]string{})
cmd.SetErr(out)
cmd.SetOut(out)
return &testEnv{
cwd: cwd,
repo: repo,
cmd: cmd,
out: out,
}
}
func (e *testEnv) Execute(t *testing.T) {
t.Helper()
ctx := context.WithValue(context.Background(), "cwd", e.cwd)
require.NoError(t, e.cmd.ExecuteContext(ctx))
}
func requireGoldenFileEqual(t *testing.T, path string, act []byte) {
t.Helper()
// Replace Windows line terminators
act = []byte(strings.ReplaceAll(string(act), "\r\n", "\n"))
path = filepath.Join("testdata", path)
if *update {
require.NoError(t, ioutil.WriteFile(path, act, 0644))
}
exp, err := ioutil.ReadFile(path)
require.NoError(t, err)
require.Equal(t, string(exp), string(act))
}
func TestNewRootCommand(t *testing.T) {
testEnv := newTestEnv(t)
testEnv.Execute(t)
requireGoldenFileEqual(t, "root_out_golden.txt", testEnv.out.Bytes())
}
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