phase 0 complete

internal/httpserver/health_test.go

@@ -0,0 +1,59 @@
+package httpserver
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	"solopm.com/solopm-server/internal/config"
+)
+
+type stubPinger struct{ err error }
+
+func (s stubPinger) Ping(ctx context.Context) error { return s.err }
+
+func TestHealthzHandler(t *testing.T) {
+	cfg := &config.Config{} // no MEILI_URL/SMTP_HOST set: both report "absent"
+
+	t.Run("db ok", func(t *testing.T) {
+		rec := httptest.NewRecorder()
+		req := httptest.NewRequest(http.MethodGet, "/healthz", nil)
+
+		healthzHandler(cfg, stubPinger{}, "test")(rec, req)
+
+		if rec.Code != http.StatusOK {
+			t.Fatalf("status = %d, want 200", rec.Code)
+		}
+		var body healthResponse
+		if err := json.Unmarshal(rec.Body.Bytes(), &body); err != nil {
+			t.Fatalf("unmarshal: %v", err)
+		}
+		if body.Status != "ok" || body.Database != "ok" {
+			t.Fatalf("body = %+v, want status=ok database=ok", body)
+		}
+		if body.Meilisearch != "absent" || body.SMTP != "absent" {
+			t.Fatalf("body = %+v, want meilisearch/smtp absent", body)
+		}
+	})
+
+	t.Run("db unreachable", func(t *testing.T) {
+		rec := httptest.NewRecorder()
+		req := httptest.NewRequest(http.MethodGet, "/healthz", nil)
+
+		healthzHandler(cfg, stubPinger{err: errors.New("boom")}, "test")(rec, req)
+
+		if rec.Code != http.StatusServiceUnavailable {
+			t.Fatalf("status = %d, want 503", rec.Code)
+		}
+		var body healthResponse
+		if err := json.Unmarshal(rec.Body.Bytes(), &body); err != nil {
+			t.Fatalf("unmarshal: %v", err)
+		}
+		if body.Status != "error" || body.Database != "unreachable" {
+			t.Fatalf("body = %+v, want status=error database=unreachable", body)
+		}
+	})
+}