Added test for recovery

recovery_test.go

@@ -0,0 +1,44 @@
+package gin
+
+import (
+	"bytes"
+	"log"
+	"net/http"
+	"net/http/httptest"
+	"os"
+	"testing"
+)
+
+// TestPanicInHandler assert that panic has been recovered.
+func TestPanicInHandler(t *testing.T) {
+	req, _ := http.NewRequest("GET", "/", nil)
+	w := httptest.NewRecorder()
+
+	// Disable panic logs for testing
+	log.SetOutput(bytes.NewBuffer(nil))
+
+	r := Default()
+	r.GET("/", func(_ *Context) {
+		panic("Oupps, Houston, we have a problem")
+	})
+
+	r.ServeHTTP(w, req)
+
+	// restore logging
+	log.SetOutput(os.Stderr)
+
+	if w.Code != 500 {
+		t.Errorf("Response code should be Internal Server Error, was: %s", w.Code)
+	}
+	bodyAsString := w.Body.String()
+
+	//	fixme:
+	if bodyAsString != "" {
+		t.Errorf("Response body should be empty, was  %s", bodyAsString)
+	}
+	//fixme:
+	if len(w.HeaderMap) != 0 {
+		t.Errorf("No headers should be provided, was %s", w.HeaderMap)
+	}
+
+}