test: add unit tests for config, fire client, scheduler

self-hosted/fire_client_test.go

@@ -0,0 +1,174 @@
+package main
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"io"
+	"log/slog"
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"testing"
+	"text/template"
+	"time"
+)
+
+func captureLogs() (*slog.Logger, *bytes.Buffer) {
+	var buf bytes.Buffer
+	h := slog.NewJSONHandler(&buf, &slog.HandlerOptions{Level: slog.LevelDebug})
+	return slog.New(h), &buf
+}
+
+func mustTemplate(t *testing.T, raw string) *template.Template {
+	t.Helper()
+	tpl, err := template.New("t").Parse(raw)
+	if err != nil {
+		t.Fatalf("template parse: %v", err)
+	}
+	return tpl
+}
+
+func TestFire_HappyPath(t *testing.T) {
+	var gotMethod, gotAuth, gotVersion, gotBeta, gotContentType string
+	var gotBody []byte
+
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		gotMethod = r.Method
+		gotAuth = r.Header.Get("Authorization")
+		gotVersion = r.Header.Get("anthropic-version")
+		gotBeta = r.Header.Get("anthropic-beta")
+		gotContentType = r.Header.Get("Content-Type")
+		gotBody, _ = io.ReadAll(r.Body)
+		_, _ = w.Write([]byte(`{"type":"routine_fire","claude_code_session_id":"sess_1","claude_code_session_url":"https://claude.ai/code/sess_1"}`))
+	}))
+	defer srv.Close()
+
+	logger, logbuf := captureLogs()
+	c := &FireClient{
+		URL:      srv.URL,
+		Token:    "tok",
+		HTTP:     &http.Client{Timeout: 5 * time.Second},
+		Template: mustTemplate(t, "fire {{.Cron}}"),
+		TZ:       time.UTC,
+		Log:      logger,
+	}
+
+	if err := c.Fire(context.Background(), "0 9 * * *"); err != nil {
+		t.Fatalf("Fire returned error: %v", err)
+	}
+
+	if gotMethod != http.MethodPost {
+		t.Errorf("method = %q", gotMethod)
+	}
+	if gotAuth != "Bearer tok" {
+		t.Errorf("auth = %q", gotAuth)
+	}
+	if gotVersion != headerVersion {
+		t.Errorf("anthropic-version = %q", gotVersion)
+	}
+	if gotBeta != headerBeta {
+		t.Errorf("anthropic-beta = %q", gotBeta)
+	}
+	if gotContentType != "application/json" {
+		t.Errorf("content-type = %q", gotContentType)
+	}
+
+	var body fireRequest
+	if err := json.Unmarshal(gotBody, &body); err != nil {
+		t.Fatalf("body unmarshal: %v", err)
+	}
+	if body.Text != "fire 0 9 * * *" {
+		t.Errorf("body.text = %q", body.Text)
+	}
+
+	if !strings.Contains(logbuf.String(), "fire ok") {
+		t.Errorf("expected 'fire ok' log, got: %s", logbuf.String())
+	}
+	if !strings.Contains(logbuf.String(), "https://claude.ai/code/sess_1") {
+		t.Errorf("expected session url in log, got: %s", logbuf.String())
+	}
+}
+
+func TestFire_NonOK(t *testing.T) {
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.WriteHeader(http.StatusUnauthorized)
+		_, _ = w.Write([]byte(`{"error":"unauthorized"}`))
+	}))
+	defer srv.Close()
+
+	logger, logbuf := captureLogs()
+	c := &FireClient{
+		URL:      srv.URL,
+		Token:    "tok",
+		HTTP:     &http.Client{Timeout: 5 * time.Second},
+		Template: mustTemplate(t, "x"),
+		TZ:       time.UTC,
+		Log:      logger,
+	}
+
+	if err := c.Fire(context.Background(), "0 9 * * *"); err != nil {
+		t.Fatalf("Fire should swallow non-2xx, got error: %v", err)
+	}
+	out := logbuf.String()
+	if !strings.Contains(out, "non-2xx") {
+		t.Errorf("expected non-2xx log, got: %s", out)
+	}
+	if !strings.Contains(out, "401") {
+		t.Errorf("expected status 401 in log, got: %s", out)
+	}
+}
+
+func TestFire_NetworkError(t *testing.T) {
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {}))
+	srv.Close() // close immediately so requests fail
+
+	logger, logbuf := captureLogs()
+	c := &FireClient{
+		URL:      srv.URL,
+		Token:    "tok",
+		HTTP:     &http.Client{Timeout: 1 * time.Second},
+		Template: mustTemplate(t, "x"),
+		TZ:       time.UTC,
+		Log:      logger,
+	}
+
+	if err := c.Fire(context.Background(), "0 9 * * *"); err != nil {
+		t.Fatalf("Fire should swallow network error, got: %v", err)
+	}
+	if !strings.Contains(logbuf.String(), "fire request failed") {
+		t.Errorf("expected request-failed log, got: %s", logbuf.String())
+	}
+}
+
+func TestFire_TemplateUsesNowFunc(t *testing.T) {
+	var gotBody []byte
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		gotBody, _ = io.ReadAll(r.Body)
+		_, _ = w.Write([]byte(`{}`))
+	}))
+	defer srv.Close()
+
+	fixed := time.Date(2026, 5, 8, 23, 30, 0, 0, time.UTC)
+	logger, _ := captureLogs()
+	c := &FireClient{
+		URL:      srv.URL,
+		Token:    "tok",
+		HTTP:     &http.Client{Timeout: 5 * time.Second},
+		Template: mustTemplate(t, "{{.LocalTime}}"),
+		TZ:       time.UTC,
+		Log:      logger,
+		NowFunc:  func() time.Time { return fixed },
+	}
+
+	if err := c.Fire(context.Background(), "0 9 * * *"); err != nil {
+		t.Fatalf("Fire: %v", err)
+	}
+	var body fireRequest
+	if err := json.Unmarshal(gotBody, &body); err != nil {
+		t.Fatalf("unmarshal: %v", err)
+	}
+	if body.Text != "2026-05-08 23:30 UTC" {
+		t.Errorf("body.text = %q", body.Text)
+	}
+}