package commands import ( "fmt" "io/ioutil" "strings" "testing" "time" "github.com/stretchr/testify/require" ) func TestComment(t *testing.T) { const golden = "testdata/comment/message-only" env, bug := newTestEnvAndBug(t) require.NoError(t, runComment(env.env, []string{bug})) requireCommentsEqual(t, golden, env) } const gitDateFormat = "Mon Jan 2 15:04:05 2006 -0700" type parsedComment struct { author string id string date time.Time message string } type parseFunc func(*parsedComment, string) type commentParser struct { t *testing.T fn parseFunc comments []parsedComment } func parseComments(t *testing.T, env *testEnv) []parsedComment { t.Helper() parser := &commentParser{ t: t, comments: []parsedComment{}, } comment := &parsedComment{} parser.fn = parser.parseAuthor for _, line := range strings.Split(env.out.String(), "\n") { parser.fn(comment, line) } parser.comments = append(parser.comments, *comment) return parser.comments } func (p *commentParser) parseAuthor(comment *parsedComment, line string) { p.t.Helper() tkns := strings.Split(line, ": ") require.Len(p.t, tkns, 2) require.Equal(p.t, "Author", tkns[0]) comment.author = tkns[1] p.fn = p.parseID } func (p *commentParser) parseID(comment *parsedComment, line string) { p.t.Helper() tkns := strings.Split(line, ": ") require.Len(p.t, tkns, 2) require.Equal(p.t, "Id", tkns[0]) comment.id = tkns[1] p.fn = p.parseDate } func (p *commentParser) parseDate(comment *parsedComment, line string) { p.t.Helper() tkns := strings.Split(line, ": ") require.Len(p.t, tkns, 2) require.Equal(p.t, "Date", tkns[0]) date, err := time.Parse(gitDateFormat, tkns[1]) require.NoError(p.t, err) comment.date = date p.fn = p.parseMessage } func (p *commentParser) parseMessage(comment *parsedComment, line string) { p.t.Helper() if strings.HasPrefix(line, "Author: ") { p.comments = append(p.comments, *comment) comment = &parsedComment{} p.parseAuthor(comment, line) return } require.True(p.t, line == "" || strings.HasPrefix(line, " ")) comment.message = strings.Join([]string{comment.message, line}, "\n") } func normalizeParsedComments(t *testing.T, comments []parsedComment) []parsedComment { t.Helper() prefix := 0x1234567 date, err := time.Parse(gitDateFormat, "Fri Aug 19 07:00:00 2022 +1900") require.NoError(t, err) out := []parsedComment{} for i, comment := range comments { comment.id = fmt.Sprintf("%7x", prefix+i) comment.date = date.Add(time.Duration(i) * time.Minute) out = append(out, comment) } return out } func requireCommentsEqual(t *testing.T, golden string, env *testEnv) { t.Helper() const goldenFilePatter = "%s-%d-golden.txt" comments := parseComments(t, env) comments = normalizeParsedComments(t, comments) if *update { t.Log("Got here") for i, comment := range comments { fileName := fmt.Sprintf(goldenFilePatter, golden, i) require.NoError(t, ioutil.WriteFile(fileName, []byte(comment.message), 0644)) } } prefix := 0x1234567 date, err := time.Parse(gitDateFormat, "Fri Aug 19 07:00:00 2022 +1900") require.NoError(t, err) for i, comment := range comments { require.Equal(t, "John Doe", comment.author) require.Equal(t, fmt.Sprintf("%7x", prefix+i), comment.id) require.Equal(t, date.Add(time.Duration(i)*time.Minute), comment.date) fileName := fmt.Sprintf(goldenFilePatter, golden, i) exp, err := ioutil.ReadFile(fileName) require.NoError(t, err) require.Equal(t, strings.ReplaceAll(string(exp), "\r", ""), strings.ReplaceAll(comment.message, "\r", "")) } }