package buildinfo

import (
	"encoding/json"
	"net/http"
	"net/http/httptest"
	"testing"
)

func TestHandlerOK(t *testing.T) {
	req := httptest.NewRequest(http.MethodGet, "/healthz", nil)
	rec := httptest.NewRecorder()
	Handler().ServeHTTP(rec, req)
	if rec.Code != http.StatusOK {
		t.Fatalf("code=%d", rec.Code)
	}
	if ct := rec.Header().Get("Content-Type"); ct != "application/json" {
		t.Fatalf("content-type=%q", ct)
	}
	var body Response
	if err := json.Unmarshal(rec.Body.Bytes(), &body); err != nil {
		t.Fatal(err)
	}
	if body.Status != "ok" || body.Name != Name || body.Description == "" {
		t.Fatalf("unexpected body: %+v", body)
	}
	if len(body.Tags) == 0 {
		t.Fatal("expected tags")
	}
	if body.Build.Commit == "" {
		t.Fatal("expected commit")
	}
}

func TestHandlerMethodNotAllowed(t *testing.T) {
	req := httptest.NewRequest(http.MethodPost, "/healthz", nil)
	rec := httptest.NewRecorder()
	Handler().ServeHTTP(rec, req)
	if rec.Code != http.StatusMethodNotAllowed {
		t.Fatalf("code=%d", rec.Code)
	}
}