rename ngin to rest

rest/handler/loghandler_test.go

@@ -0,0 +1,74 @@
+package handler
+
+import (
+	"io/ioutil"
+	"log"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+	"time"
+
+	"zero/rest/internal"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func init() {
+	log.SetOutput(ioutil.Discard)
+}
+
+func TestLogHandler(t *testing.T) {
+	handlers := []func(handler http.Handler) http.Handler{
+		LogHandler,
+		DetailedLogHandler,
+	}
+
+	for _, logHandler := range handlers {
+		req := httptest.NewRequest(http.MethodGet, "http://localhost", nil)
+		handler := logHandler(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+			r.Context().Value(internal.LogContext).(*internal.LogCollector).Append("anything")
+			w.Header().Set("X-Test", "test")
+			w.WriteHeader(http.StatusServiceUnavailable)
+			_, err := w.Write([]byte("content"))
+			assert.Nil(t, err)
+		}))
+
+		resp := httptest.NewRecorder()
+		handler.ServeHTTP(resp, req)
+		assert.Equal(t, http.StatusServiceUnavailable, resp.Code)
+		assert.Equal(t, "test", resp.Header().Get("X-Test"))
+		assert.Equal(t, "content", resp.Body.String())
+	}
+}
+
+func TestLogHandlerSlow(t *testing.T) {
+	handlers := []func(handler http.Handler) http.Handler{
+		LogHandler,
+		DetailedLogHandler,
+	}
+
+	for _, logHandler := range handlers {
+		req := httptest.NewRequest(http.MethodGet, "http://localhost", nil)
+		handler := logHandler(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+			time.Sleep(slowThreshold + time.Millisecond*50)
+		}))
+
+		resp := httptest.NewRecorder()
+		handler.ServeHTTP(resp, req)
+		assert.Equal(t, http.StatusOK, resp.Code)
+	}
+}
+
+func BenchmarkLogHandler(b *testing.B) {
+	b.ReportAllocs()
+
+	req := httptest.NewRequest(http.MethodGet, "http://localhost", nil)
+	handler := LogHandler(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.WriteHeader(http.StatusOK)
+	}))
+
+	for i := 0; i < b.N; i++ {
+		resp := httptest.NewRecorder()
+		handler.ServeHTTP(resp, req)
+	}
+}