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package cli
import (
"bytes"
"strings"
"testing"
)
func TestHelp(t *testing.T) {
var out, errb bytes.Buffer
code := Run([]string{"help"}, nil, &out, &errb)
if code != 0 || !strings.Contains(out.String(), "lectio") {
t.Errorf("help code=%d out=%q", code, out.String())
}
}
func TestHelpFlag(t *testing.T) {
var out, errb bytes.Buffer
code := Run([]string{"-h"}, nil, &out, &errb)
if code != 0 || !strings.Contains(out.String(), "lectio") {
t.Errorf("-h code=%d out=%q", code, out.String())
}
}
func TestUnexpectedPositional(t *testing.T) {
var out, errb bytes.Buffer
if code := Run([]string{"bogus"}, nil, &out, &errb); code != 2 {
t.Errorf("unexpected positional code=%d want 2 (stderr=%q)", code, errb.String())
}
}
func TestVersion(t *testing.T) {
var out, errb bytes.Buffer
if code := Run([]string{"--version"}, nil, &out, &errb); code != 0 {
t.Errorf("version code=%d", code)
}
}
// TestBadDate exercises the usage-error path for a malformed date: a token
// that doesn't match dateRe's YYYY-MM-DD shape is left as an unrecognised
// positional argument once flag parsing is done, which is a usage error.
func TestBadDate(t *testing.T) {
t.Setenv("XDG_CONFIG_HOME", t.TempDir())
var out, errb bytes.Buffer
if code := Run([]string{"13-13-13"}, nil, &out, &errb); code != 2 {
t.Errorf("bad date code=%d want 2 (stderr=%q)", code, errb.String())
}
}
// TestTwoDatesIsAmbiguous exercises extractDate's ambiguity check: two
// dateRe-shaped tokens can't both be the positional date.
func TestTwoDatesIsAmbiguous(t *testing.T) {
t.Setenv("XDG_CONFIG_HOME", t.TempDir())
var out, errb bytes.Buffer
if code := Run([]string{"2026-07-22", "2026-07-23"}, nil, &out, &errb); code != 2 {
t.Errorf("two dates code=%d want 2 (stderr=%q)", code, errb.String())
}
}
// TestUnknownVersion exercises -b/--bible's version-validation usage-error
// path without touching the network: the version code is checked against
// the five known codes before any fetch is attempted.
func TestUnknownVersion(t *testing.T) {
t.Setenv("XDG_CONFIG_HOME", t.TempDir())
var out, errb bytes.Buffer
if code := Run([]string{"-b", "zzz"}, nil, &out, &errb); code != 2 {
t.Errorf("unknown version code=%d want 2 (stderr=%q)", code, errb.String())
}
}
// TestLectionaryTradMapsToTraditional exercises -l/--lectionary's trad ->
// traditional normalisation. It goes through extractDate/flag parsing and
// validation only (no network): a bogus date lets it exit before any fetch
// is attempted, but only after the -l value has already been validated and
// mapped, which is what this test checks indirectly via the exit code (a
// bad --lectionary would exit 2 for a different reason, so this alone
// wouldn't distinguish the two -- see TestLectionaryBogus for that side).
// Exercised directly against parseFlags below.
func TestLectionaryTradMapsToTraditional(t *testing.T) {
lectionary, err := normalizeLectionary("trad")
if err != nil {
t.Fatalf("normalizeLectionary(trad): %v", err)
}
if lectionary != "traditional" {
t.Errorf("normalizeLectionary(trad) = %q, want traditional", lectionary)
}
}
func TestLectionaryBogus(t *testing.T) {
t.Setenv("XDG_CONFIG_HOME", t.TempDir())
var out, errb bytes.Buffer
if code := Run([]string{"-l", "bogus"}, nil, &out, &errb); code != 2 {
t.Errorf("bogus lectionary code=%d want 2 (stderr=%q)", code, errb.String())
}
if _, err := normalizeLectionary("bogus"); err == nil {
t.Error("normalizeLectionary(bogus): want error, got nil")
}
}
func TestLangBogus(t *testing.T) {
t.Setenv("XDG_CONFIG_HOME", t.TempDir())
var out, errb bytes.Buffer
if code := Run([]string{"-g", "de"}, nil, &out, &errb); code != 2 {
t.Errorf("bogus lang code=%d want 2 (stderr=%q)", code, errb.String())
}
}
// TestDateTokenAnyPosition exercises extractDate directly: the date token
// is found regardless of where it appears among other flags.
func TestDateTokenAnyPosition(t *testing.T) {
cases := [][]string{
{"-a", "2026-07-22"},
{"2026-07-22", "-a"},
{"-a", "2026-07-22", "-r"},
}
for _, args := range cases {
date, rest, err := extractDate(args)
if err != nil {
t.Fatalf("extractDate(%v): %v", args, err)
}
if date != "2026-07-22" {
t.Errorf("extractDate(%v) date = %q, want 2026-07-22", args, date)
}
for _, r := range rest {
if r == "2026-07-22" {
t.Errorf("extractDate(%v) rest = %v still contains the date", args, rest)
}
}
}
}
// TestExtractDateDefaultsToday checks that omitting a date token leaves
// today's date and passes every token through untouched.
func TestExtractDateDefaultsToday(t *testing.T) {
date, rest, err := extractDate([]string{"-a", "-r"})
if err != nil {
t.Fatalf("extractDate: %v", err)
}
if date != today() {
t.Errorf("extractDate date = %q, want today() = %q", date, today())
}
if len(rest) != 2 || rest[0] != "-a" || rest[1] != "-r" {
t.Errorf("extractDate rest = %v, want [-a -r]", rest)
}
}
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