ch14.4

cmd/web/handlers_test.go

@@ -1,33 +1,20 @@
 package main
 
 import (
-	"bytes"
-	"io"
 	"net/http"
-	"net/http/httptest"
 	"testing"
 
 	"gitea.local.lab/Lbenedar/snippetbox/internal/assert"
 )
 
 func TestPing(t *testing.T) {
-	rr := httptest.NewRecorder()
+	app := newTestApplication(t)
 
-	r, err := http.NewRequest(http.MethodGet, "/", nil)
-	if err != nil {
-		t.Fatal(err)
-	}
+	ts := newTestServer(t, app.routes())
+	defer ts.Close()
 
-	ping(rr, r)
+	statusCode, _, body := ts.get(t, "/ping")
 
-	rs := rr.Result()
-
-	assert.Equal(t, rs.StatusCode, http.StatusOK)
-	defer rs.Body.Close()
-	body, err := io.ReadAll(rs.Body)
-	if err != nil {
-		t.Fatal(err)
-	}
-	bytes.TrimSpace(body)
-	assert.Equal(t, string(body), "OK")
+	assert.Equal(t, statusCode, http.StatusOK)
+	assert.Equal(t, body, "OK")
 }

cmd/web/routes.go

@@ -19,6 +19,8 @@ func (app *application) routes() http.Handler {
 	fileServer := http.FileServer(http.FS(ui.Files))
 	router.Handler(http.MethodGet, "/static/*filepath", fileServer)
 
+	router.HandlerFunc(http.MethodGet, "/ping", ping)
+
 	dynamic := alice.New(app.sessionManager.LoadAndSave, noSurf, app.authenticate)
 
 	router.Handler(http.MethodGet, "/", dynamic.ThenFunc(app.home))

cmd/web/testutils_test.go

@@ -0,0 +1,53 @@
+package main
+
+import (
+	"bytes"
+	"io"
+	"log"
+	"net/http"
+	"net/http/cookiejar"
+	"net/http/httptest"
+	"testing"
+)
+
+func newTestApplication(t *testing.T) *application {
+	return &application{
+		errorLog: log.New(io.Discard, "", 0),
+		infoLog:  log.New(io.Discard, "", 0),
+	}
+}
+
+type testServer struct {
+	*httptest.Server
+}
+
+func newTestServer(t *testing.T, h http.Handler) *testServer {
+	ts := httptest.NewTLSServer(h)
+	jar, err := cookiejar.New(nil)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	ts.Client().Jar = jar
+
+	ts.Client().CheckRedirect = func(req *http.Request, via []*http.Request) error {
+		return http.ErrUseLastResponse
+	}
+	return &testServer{ts}
+}
+
+func (ts *testServer) get(t *testing.T, urlPath string) (int, http.Header, string) {
+	rs, err := ts.Client().Get(ts.URL + urlPath)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	defer rs.Body.Close()
+	body, err := io.ReadAll(rs.Body)
+	if err != nil {
+		t.Fatal(err)
+	}
+	bytes.TrimSpace(body)
+
+	return rs.StatusCode, rs.Header, string(body)
+}