// Copyright (C) 2026 Dcntrlized
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published
// by the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.

package bot

import (
	"context"
	"crypto/hmac"
	"crypto/sha256"
	"encoding/hex"
	"encoding/json"
	"io"
	"log/slog"
	"net/http"
	"net/http/httptest"
	"strings"
	"sync"
	"sync/atomic"
	"testing"
	"time"

	"git.dcntrlized.org/Dcntrlized/license-bot/internal/config"
	"git.dcntrlized.org/Dcntrlized/license-bot/internal/gitea"
	"git.dcntrlized.org/Dcntrlized/license-bot/internal/licenser"
)

func newTestBot(t *testing.T, apiURL string) *Bot {
	t.Helper()
	return New(config.Config{
		GiteaURL:      apiURL,
		Token:         "tok",
		WebhookSecret: "s3cret",
		Repos:         []string{"Dcntrlized/Maestro"},
		BotName:       "Bot",
		BotEmail:      "bot@example.local",
		Holder:        "Dcntrlized",
		CommentMarker: "<!-- marker -->",
		StatusContext: "license-bot / addlicense",
		AddlicenseBin: "addlicense",
		WorkRoot:      t.TempDir(),
	}, slog.New(slog.NewTextHandler(io.Discard, nil)))
}

func sign(secret string, body []byte) string {
	m := hmac.New(sha256.New, []byte(secret))
	m.Write(body)
	return hex.EncodeToString(m.Sum(nil))
}

func TestSignatureValid(t *testing.T) {
	b := newTestBot(t, "http://127.0.0.1:1")
	body := []byte(`{"action":"opened"}`)
	if !b.SignatureValid(sign("s3cret", body), body) {
		t.Fatal("correct signature rejected")
	}
	if !b.SignatureValid("sha256="+sign("s3cret", body), body) {
		t.Fatal("sha256= prefixed signature rejected")
	}
	if b.SignatureValid(sign("other", body), body) {
		t.Fatal("signature from the wrong secret accepted")
	}
	if b.SignatureValid("", body) {
		t.Fatal("empty signature accepted")
	}
}

func TestWebhookRejectsBadSignature(t *testing.T) {
	b := newTestBot(t, "http://127.0.0.1:1")
	req := httptest.NewRequest(http.MethodPost, "/hook", strings.NewReader(`{}`))
	req.Header.Set("X-Gitea-Signature", "deadbeef")
	rec := httptest.NewRecorder()
	b.ServeHTTP(rec, req)
	if rec.Code != http.StatusForbidden {
		t.Fatalf("status = %d, want 403", rec.Code)
	}
}

// TestWebhookIgnores covers repositories outside the allowlist and non
// pull-request actions: neither may touch the Gitea API.
func TestWebhookIgnores(t *testing.T) {
	var hits int32
	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		atomic.AddInt32(&hits, 1)
	}))
	defer srv.Close()
	b := newTestBot(t, srv.URL)

	cases := []string{
		`{"action":"opened","number":1,"repository":{"full_name":"Dcntrlized/Other"},"pull_request":{"number":1}}`,
		`{"action":"closed","number":1,"repository":{"full_name":"Dcntrlized/Maestro"},"pull_request":{"number":1}}`,
	}
	for _, body := range cases {
		req := httptest.NewRequest(http.MethodPost, "/hook", strings.NewReader(body))
		req.Header.Set("X-Gitea-Signature", sign("s3cret", []byte(body)))
		req.Header.Set("X-Gitea-Event", "pull_request")
		rec := httptest.NewRecorder()
		b.ServeHTTP(rec, req)
		if rec.Code != http.StatusAccepted {
			t.Fatalf("status = %d, want 202", rec.Code)
		}
	}
	time.Sleep(150 * time.Millisecond)
	if n := atomic.LoadInt32(&hits); n != 0 {
		t.Fatalf("API was called %d times for ignored events", n)
	}
}

// TestWebhookDispatches verifies the full hop: valid signature, allowlisted
// repo, pull_request/opened with a PR number, dispatched to the API.
func TestWebhookDispatches(t *testing.T) {
	var hits int32
	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		atomic.AddInt32(&hits, 1)
		w.Header().Set("Content-Type", "application/json")
		io.WriteString(w, `{"number":7,"state":"closed","head":{"ref":"f","sha":"abc","repo":{"full_name":"Dcntrlized/Maestro"}},"base":{"ref":"main","repo":{"full_name":"Dcntrlized/Maestro"}}}`)
	}))
	defer srv.Close()
	b := newTestBot(t, srv.URL)

	body := `{"action":"opened","number":7,"repository":{"full_name":"Dcntrlized/Maestro"},"pull_request":{"number":7}}`
	req := httptest.NewRequest(http.MethodPost, "/hook", strings.NewReader(body))
	req.Header.Set("X-Gitea-Signature", sign("s3cret", []byte(body)))
	req.Header.Set("X-Gitea-Event", "pull_request")
	rec := httptest.NewRecorder()
	b.ServeHTTP(rec, req)
	if rec.Code != http.StatusAccepted {
		t.Fatalf("status = %d, want 202", rec.Code)
	}

	deadline := time.Now().Add(2 * time.Second)
	for atomic.LoadInt32(&hits) == 0 && time.Now().Before(deadline) {
		time.Sleep(20 * time.Millisecond)
	}
	if n := atomic.LoadInt32(&hits); n == 0 {
		t.Fatal("webhook was not dispatched to the API")
	}
}

func TestShortSHA(t *testing.T) {
	if got := short("0123456789abcdef"); got != "0123456789ab" {
		t.Fatalf("short = %q", got)
	}
	if got := short("abc"); got != "abc" {
		t.Fatalf("short = %q", got)
	}
}

// TestCaughtCommentWording pins the comment text this project has always used,
// so it cannot silently drift again. It must keep the original pretty markdown
// (heading, bold warning, AGPL link, @Admin tag) and link the bot's commit.
func TestCaughtCommentWording(t *testing.T) {
	b := newTestBot(t, "http://192.168.122.183:3000")
	pr := &gitea.Pull{
		Number:  4,
		HTMLURL: "http://192.168.122.183:3000/Dcntrlized/license-bot-lab/pulls/4",
	}
	pr.Head.SHA = "78a4a2e1ad20ed316eaa58399901e3e37d7496b0"
	pr.Head.Repo.FullName = "admin/license-bot-lab"
	pr.Base.Repo.FullName = "Dcntrlized/license-bot-lab"

	got := b.caughtComment(pr, &licenser.Result{
		Changed: []string{"src/adv-unlicensed.go"},
		NewSHA:  "78a4a2e1ad20ed316eaa58399901e3e37d7496b0",
		Pushed:  true,
	})

	for _, want := range []string{
		"## Uh oh! Unlicensed code detected!",
		"You just tried to push **unlicensed code**!",
		"[AGPL-3.0](https://www.gnu.org/licenses/agpl-3.0.html)",
		"Thankfully, our helpful bot caught it and added the missing licensing",
		"([`78a4a2e1ad20`](http://192.168.122.183:3000/admin/license-bot-lab/commit/78a4a2e1ad20ed316eaa58399901e3e37d7496b0))",
		"tag **@Admin**",
	} {
		if !strings.Contains(got, want) {
			t.Fatalf("comment is missing %q:\n%s", want, got)
		}
	}
	// It must not claim the contributor's commit was rewritten.
	if strings.Contains(strings.ToLower(got), "amended") || strings.Contains(got, "force-push") {
		t.Fatalf("comment must not mention amending or force-pushing:\n%s", got)
	}
	if !strings.Contains(got, "your own commit was left untouched") {
		t.Fatalf("comment must state the contributor's commit is untouched:\n%s", got)
	}
}

func TestHealthRoute(t *testing.T) {
	b := newTestBot(t, "http://127.0.0.1:1")
	rec := httptest.NewRecorder()
	b.ServeHTTP(rec, httptest.NewRequest(http.MethodGet, "/healthz", nil))
	if rec.Code != http.StatusOK || !strings.Contains(rec.Body.String(), "ok") {
		t.Fatalf("health = %d %q", rec.Code, rec.Body.String())
	}
	rec = httptest.NewRecorder()
	b.ServeHTTP(rec, httptest.NewRequest(http.MethodPost, "/healthz", nil))
	if rec.Code != http.StatusMethodNotAllowed {
		t.Fatalf("POST /healthz = %d, want 405", rec.Code)
	}
}

// TestWebhookDeliveryDedup verifies that Gitea redelivering the same webhook
// (same X-Gitea-Delivery id) is accepted but only dispatched once.
func TestWebhookDeliveryDedup(t *testing.T) {
	var fetches int32
	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		if strings.HasSuffix(r.URL.Path, "/pulls/7") {
			atomic.AddInt32(&fetches, 1)
		}
		w.Header().Set("Content-Type", "application/json")
		io.WriteString(w, `{"number":7,"state":"open","head":{"ref":"f","sha":"abc","repo":{"full_name":"Dcntrlized/Maestro"}},"base":{"ref":"main","repo":{"full_name":"Dcntrlized/Maestro"}}}`)
	}))
	defer srv.Close()
	b := newTestBot(t, srv.URL)

	body := `{"action":"opened","number":7,"repository":{"full_name":"Dcntrlized/Maestro"},"pull_request":{"number":7}}`
	for i := 0; i < 3; i++ {
		req := httptest.NewRequest(http.MethodPost, "/hook", strings.NewReader(body))
		req.Header.Set("X-Gitea-Signature", sign("s3cret", []byte(body)))
		req.Header.Set("X-Gitea-Event", "pull_request")
		req.Header.Set("X-Gitea-Delivery", "delivery-1")
		rec := httptest.NewRecorder()
		b.ServeHTTP(rec, req)
		if rec.Code != http.StatusAccepted {
			t.Fatalf("attempt %d: status = %d, want 202", i, rec.Code)
		}
	}
	time.Sleep(200 * time.Millisecond)
	if n := atomic.LoadInt32(&fetches); n != 1 {
		t.Fatalf("pull fetched %d times for one delivery id, want 1", n)
	}
}

// TestReconcileSkipsGreenAndProcessesOthers covers the startup scan contract:
// a pull request whose head already carries the bot's success status is left
// alone, while one without it is checked.
func TestReconcileSkipsGreenAndProcessesOthers(t *testing.T) {
	var greenFiles, redFiles int32
	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		w.Header().Set("Content-Type", "application/json")
		switch {
		case strings.HasSuffix(r.URL.Path, "/pulls") && r.URL.Query().Get("state") == "open":
			io.WriteString(w, `[
				{"number":1,"state":"open","head":{"ref":"green","sha":"green","repo":{"full_name":"Dcntrlized/Maestro"}},"base":{"ref":"main","repo":{"full_name":"Dcntrlized/Maestro"}}},
				{"number":2,"state":"open","head":{"ref":"red","sha":"red","repo":{"full_name":"Dcntrlized/Maestro"}},"base":{"ref":"main","repo":{"full_name":"Dcntrlized/Maestro"}}}
			]`)
		case strings.Contains(r.URL.Path, "/commits/green/statuses"):
			io.WriteString(w, `[{"context":"license-bot / addlicense","status":"success"}]`)
		case strings.Contains(r.URL.Path, "/commits/red/statuses"):
			io.WriteString(w, `[]`)
		case strings.HasSuffix(r.URL.Path, "/pulls/2"):
			io.WriteString(w, `{"number":2,"state":"open","head":{"ref":"red","sha":"red","repo":{"full_name":"Dcntrlized/Maestro"}},"base":{"ref":"main","repo":{"full_name":"Dcntrlized/Maestro"}}}`)
		case strings.HasSuffix(r.URL.Path, "/pulls/2/files"):
			atomic.AddInt32(&redFiles, 1)
			io.WriteString(w, `[]`)
		case strings.HasSuffix(r.URL.Path, "/pulls/1/files"):
			atomic.AddInt32(&greenFiles, 1)
			io.WriteString(w, `[]`)
		default:
			io.WriteString(w, `[]`)
		}
	}))
	defer srv.Close()
	b := newTestBot(t, srv.URL)

	if err := b.Reconcile(context.Background()); err != nil {
		t.Fatalf("reconcile: %v", err)
	}
	if n := atomic.LoadInt32(&greenFiles); n != 0 {
		t.Fatalf("green pull request was checked %d times, want 0", n)
	}
	if n := atomic.LoadInt32(&redFiles); n != 1 {
		t.Fatalf("red pull request files listed %d times, want 1", n)
	}
}

// TestWebhookSubEvents pins Gitea's real header/action behavior (measured on
// 1.27.2): a push to a pull request head arrives as X-Gitea-Event:
// pull_request with action "synchronized" -- NOT "synchronize" -- and every
// other pull-request sub-event (comments, reviews, labels) carries an action
// outside the allowlist and must not start a check.
func TestWebhookSubEvents(t *testing.T) {
	var fetches int32
	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		if strings.HasSuffix(r.URL.Path, "/pulls/7") {
			atomic.AddInt32(&fetches, 1)
		}
		w.Header().Set("Content-Type", "application/json")
		io.WriteString(w, `{"number":7,"state":"open","head":{"ref":"f","sha":"abc","repo":{"full_name":"Dcntrlized/Maestro"}},"base":{"ref":"main","repo":{"full_name":"Dcntrlized/Maestro"}}}`)
	}))
	defer srv.Close()
	b := newTestBot(t, srv.URL)

	post := func(event, body string) {
		req := httptest.NewRequest(http.MethodPost, "/hook", strings.NewReader(body))
		req.Header.Set("X-Gitea-Signature", sign("s3cret", []byte(body)))
		req.Header.Set("X-Gitea-Event", event)
		req.Header.Set("X-Gitea-Delivery", event+body)
		rec := httptest.NewRecorder()
		b.ServeHTTP(rec, req)
		if rec.Code != http.StatusAccepted {
			t.Fatalf("event %q: status = %d, want 202", event, rec.Code)
		}
	}

	cases := []struct {
		event, body string
		checked     bool
	}{
		{"pull_request", `{"action":"synchronized","number":7,"repository":{"full_name":"Dcntrlized/Maestro"},"pull_request":{"number":7}}`, true},
		{"pull_request_sync", `{"action":"synchronize","number":7,"repository":{"full_name":"Dcntrlized/Maestro"},"pull_request":{"number":7}}`, true},
		{"pull_request", `{"action":"opened","number":7,"repository":{"full_name":"Dcntrlized/Maestro"},"pull_request":{"number":7}}`, true},
		{"pull_request", `{"action":"created","number":7,"repository":{"full_name":"Dcntrlized/Maestro"},"pull_request":{"number":7}}`, false},
		{"pull_request", `{"action":"closed","number":7,"repository":{"full_name":"Dcntrlized/Maestro"},"pull_request":{"number":7}}`, false},
		{"pull_request_comment", `{"action":"created","number":7,"repository":{"full_name":"Dcntrlized/Maestro"}}`, false},
		{"push", `{"action":"synchronized","number":7,"repository":{"full_name":"Dcntrlized/Maestro"}}`, false},
	}
	for _, c := range cases {
		before := atomic.LoadInt32(&fetches)
		post(c.event, c.body)
		time.Sleep(150 * time.Millisecond)
		got := atomic.LoadInt32(&fetches) > before
		if got != c.checked {
			t.Fatalf("event %q action %s: checked = %v, want %v", c.event, c.body, got, c.checked)
		}
	}
}

// TestCommentLinksUsePublicURL keeps the browser-facing links in the bot's
// comment on the public name even when the API is reached over the internal
// Docker alias (GITEA_URL=http://gitea:3000 is not resolvable in a browser).
func TestCommentLinksUsePublicURL(t *testing.T) {
	b := newTestBot(t, "http://gitea:3000")
	b.cfg.PublicURL = "https://git.example.org"
	var pr gitea.Pull
	if err := json.Unmarshal([]byte(`{"head":{"ref":"f","sha":"abc","repo":{"full_name":"Dcntrlized/Maestro"}},"base":{"ref":"main","repo":{"full_name":"Dcntrlized/Maestro"}}}`), &pr); err != nil {
		t.Fatal(err)
	}
	if got := b.commitURL(&pr, "abc"); got != "https://git.example.org/Dcntrlized/Maestro/commit/abc" {
		t.Fatalf("commitURL = %q", got)
	}
	b.cfg.PublicURL = ""
	if got := b.commitURL(&pr, "abc"); got != "http://gitea:3000/Dcntrlized/Maestro/commit/abc" {
		t.Fatalf("fallback commitURL = %q", got)
	}
}

// TestCommentReplacesInsteadOfEditing pins the replacement semantics: the bot's
// previous comment is deleted and a fresh one is posted, never edited in place.
// Gitea keeps a comment's position, so editing left a resolved failure buried
// near the top of the timeline while the status at the head was green.
func TestCommentReplacesInsteadOfEditing(t *testing.T) {
	var mu sync.Mutex
	var calls []string
	var posted string
	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		mu.Lock()
		calls = append(calls, r.Method+" "+r.URL.Path)
		mu.Unlock()
		w.Header().Set("Content-Type", "application/json")
		switch r.Method {
		case http.MethodGet:
			io.WriteString(w, `[
				{"id":41,"body":"stale failure\n\n<!-- marker --> <!-- dcntrlized-copyleft-bot:problem -->"}
			]`)
		case http.MethodPost:
			raw, _ := io.ReadAll(r.Body)
			mu.Lock()
			posted = string(raw)
			mu.Unlock()
			io.WriteString(w, `{"id":42,"body":"fresh"}`)
		default:
			w.WriteHeader(http.StatusNoContent)
		}
	}))
	defer srv.Close()

	b := newTestBot(t, srv.URL)
	b.comment(context.Background(), "Dcntrlized/Maestro", &gitea.Pull{Number: 7}, "fresh message", false)

	mu.Lock()
	got := append([]string(nil), calls...)
	raw := posted
	mu.Unlock()

	// The client JSON-encodes the request, so decode it before asserting on the
	// markdown the server would actually store.
	var sent struct {
		Body string `json:"body"`
	}
	if err := json.Unmarshal([]byte(raw), &sent); err != nil {
		t.Fatalf("posted body is not JSON: %v (%s)", err, raw)
	}
	body := sent.Body

	var deletes, posts, patches int
	for _, c := range got {
		switch {
		case strings.HasPrefix(c, http.MethodDelete+" ") && strings.HasSuffix(c, "/issues/comments/41"):
			deletes++
		case strings.HasPrefix(c, http.MethodPost+" "):
			posts++
		case strings.HasPrefix(c, http.MethodPatch+" "):
			patches++
		}
	}
	if patches != 0 {
		t.Fatalf("comment was edited in place; calls: %v", got)
	}
	if deletes != 1 || posts != 1 {
		t.Fatalf("deletes=%d posts=%d, want 1 and 1; calls: %v", deletes, posts, got)
	}
	if !strings.Contains(body, "<!-- marker -->") {
		t.Fatalf("posted comment lost the marker: %s", body)
	}
	if strings.Contains(body, problemMarker) {
		t.Fatalf("informational comment must not carry the problem marker: %s", body)
	}
}

// TestClearProblemCommentKeepsInformational verifies that a pass finding
// nothing left to fix removes a stale problem comment but leaves the
// informational "the bot added the headers" comment in place.
func TestClearProblemCommentKeepsInformational(t *testing.T) {
	var mu sync.Mutex
	var deletes []string
	var posts int
	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		w.Header().Set("Content-Type", "application/json")
		switch r.Method {
		case http.MethodGet:
			io.WriteString(w, `[
				{"id":41,"body":"stale failure\n\n<!-- marker --> <!-- dcntrlized-copyleft-bot:problem -->"},
				{"id":42,"body":"the bot added the headers\n\n<!-- marker -->"},
				{"id":43,"body":"a human's comment"}
			]`)
		case http.MethodDelete:
			mu.Lock()
			deletes = append(deletes, r.URL.Path)
			mu.Unlock()
			w.WriteHeader(http.StatusNoContent)
		case http.MethodPost:
			mu.Lock()
			posts++
			mu.Unlock()
			io.WriteString(w, `{"id":44,"body":""}`)
		}
	}))
	defer srv.Close()

	b := newTestBot(t, srv.URL)
	b.clearProblemComment(context.Background(), "Dcntrlized/Maestro", &gitea.Pull{Number: 7})

	mu.Lock()
	got := append([]string(nil), deletes...)
	n := posts
	mu.Unlock()

	if n != 0 {
		t.Fatalf("clearProblemComment posted %d comments, want 0", n)
	}
	if len(got) != 1 || !strings.HasSuffix(got[0], "/issues/comments/41") {
		t.Fatalf("deleted %v, want only the stale problem comment 41", got)
	}
}

// TestFixableFiles pins the scope of the check: every changed file that still
// exists at the head is fair game, so an existing unlicensed file gets its
// header the first time a pull request touches it. A removal has no content left
// to license, and "unchanged" is not part of the delta.
func TestFixableFiles(t *testing.T) {
	files := []gitea.File{
		{Filename: "added.go", Status: "added"},
		{Filename: "modified.go", Status: "modified"},
		{Filename: "renamed.go", Status: "renamed"},
		{Filename: "copied.go", Status: "copied"},
		{Filename: "gone.go", Status: "removed"},
		{Filename: "same.go", Status: "unchanged"},
	}
	got := strings.Join(fixableFiles(files), ",")
	if want := "added.go,modified.go,renamed.go,copied.go"; got != want {
		t.Fatalf("fixableFiles = %q, want %q", got, want)
	}
	if len(fixableFiles(nil)) != 0 {
		t.Fatalf("fixableFiles(nil) = %v, want empty", fixableFiles(nil))
	}
}

// TestProcessPullChecksModifiedFiles is the regression test for "a +3 -1 pull
// request that only edits an existing unlicensed file got no header". A modified
// file is no longer short-circuited to success: the run moves on to clone the
// head, which fails here (the fake API is not a git server), so the flow must
// reach the "pending" status and must never post the "no changed files" success.
func TestProcessPullChecksModifiedFiles(t *testing.T) {
	var mu sync.Mutex
	var statuses []string
	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		if !strings.HasPrefix(r.URL.Path, "/api/v1/") {
			http.Error(w, "not a git server", http.StatusNotFound)
			return
		}
		w.Header().Set("Content-Type", "application/json")
		switch {
		case r.Method == http.MethodGet && strings.HasSuffix(r.URL.Path, "/pulls/2/files"):
			io.WriteString(w, `[{"filename":"test.go","status":"modified"}]`)
		case r.Method == http.MethodGet && strings.HasSuffix(r.URL.Path, "/issues/2/comments"):
			io.WriteString(w, `[]`)
		case r.Method == http.MethodPost && strings.Contains(r.URL.Path, "/statuses/"):
			raw, _ := io.ReadAll(r.Body)
			mu.Lock()
			statuses = append(statuses, string(raw))
			mu.Unlock()
			io.WriteString(w, `{"id":1}`)
		default:
			io.WriteString(w, `{}`)
		}
	}))
	defer srv.Close()

	b := newTestBot(t, srv.URL)
	var pr gitea.Pull
	if err := json.Unmarshal([]byte(`{"number":2,"state":"open",`+
		`"head":{"ref":"licensebot-test","sha":"4ac2f5d","repo":{"full_name":"Dcntrlized/licensebot-test"}},`+
		`"base":{"ref":"licensebot-test","repo":{"full_name":"Dcntrlized/licensebot-test"}}}`), &pr); err != nil {
		t.Fatal(err)
	}
	// The clone against this fake API cannot succeed; that error is expected and
	// is not what this test asserts.
	_ = b.ProcessPull(context.Background(), "Dcntrlized/licensebot-test", &pr)

	mu.Lock()
	defer mu.Unlock()
	var pending bool
	for _, s := range statuses {
		if strings.Contains(s, "no changed files need a license header") {
			t.Fatalf("a modified file was short-circuited: %s", s)
		}
		if strings.Contains(s, `"state":"pending"`) &&
			strings.Contains(s, "checking changed files for AGPL headers") {
			pending = true
		}
	}
	if !pending {
		t.Fatalf("never posted the pending status, got %v", statuses)
	}
}