TestContextBindRequestTooLarge() — gin Function Reference

Source Code

context_test.go lines 2107–2136

func TestContextBindRequestTooLarge(t *testing.T) {
	// When using go-json as JSON encoder, they do not propagate the http.MaxBytesError error
	// The response will fail with a generic 400 instead of 413
	// https://github.com/goccy/go-json/issues/485
	var expectedCode int
	switch json.Package {
	case "github.com/goccy/go-json":
		expectedCode = http.StatusBadRequest
	default:
		expectedCode = http.StatusRequestEntityTooLarge
	}

	w := httptest.NewRecorder()
	c, _ := CreateTestContext(w)

	c.Request, _ = http.NewRequest(http.MethodPost, "/", strings.NewReader(`{"foo":"bar", "bar":"foo"}`))
	c.Request.Body = http.MaxBytesReader(c.Writer, c.Request.Body, 10)

	var obj struct {
		Foo string `json:"foo"`
		Bar string `json:"bar"`
	}
	require.Error(t, c.BindJSON(&obj))
	c.Writer.WriteHeaderNow()

	assert.Empty(t, obj.Bar)
	assert.Empty(t, obj.Foo)
	assert.Equal(t, expectedCode, w.Code)
	assert.True(t, c.IsAborted())
}