Add asserts test util

For comparing the body of a request with an instance.

test/asserts.go

@@ -0,0 +1,27 @@
+package test
+
+import (
+	"encoding/json"
+	"io/ioutil"
+	"net/http/httptest"
+
+	"github.com/stretchr/testify/assert"
+)
+
+// BodyEquals asserts the content from the response recorder with the encoded json of the provided instance.
+func BodyEquals(t assert.TestingT, obj interface{}, recorder *httptest.ResponseRecorder) {
+	bytes, err := ioutil.ReadAll(recorder.Body)
+	assert.Nil(t, err)
+	actual := string(bytes)
+
+	JSONEquals(t, obj, actual)
+}
+
+// JSONEquals asserts the content of the string with the encoded json of the provided instance.
+func JSONEquals(t assert.TestingT, obj interface{}, expected string) {
+	bytes, err := json.Marshal(obj)
+	assert.Nil(t, err)
+	objJSON := string(bytes)
+
+	assert.JSONEq(t, expected, objJSON)
+}

test/asserts_test.go

@@ -0,0 +1,42 @@
+package test_test
+
+import (
+	"net/http/httptest"
+	"testing"
+
+	"github.com/gotify/server/test"
+	"github.com/stretchr/testify/assert"
+)
+
+type obj struct {
+	Test string
+	ID   int
+}
+
+type fakeTesting struct {
+	hasErrors bool
+}
+
+func (t *fakeTesting) Errorf(format string, args ...interface{}) {
+	t.hasErrors = true
+}
+
+func Test_BodyEquals(t *testing.T) {
+	recorder := httptest.NewRecorder()
+	recorder.WriteString(`{"ID": 2, "Test": "asd"}`)
+
+	fakeTesting := &fakeTesting{}
+
+	test.BodyEquals(fakeTesting, &obj{ID: 2, Test: "asd"}, recorder)
+	assert.False(t, fakeTesting.hasErrors)
+}
+
+func Test_BodyEquals_failing(t *testing.T) {
+	recorder := httptest.NewRecorder()
+	recorder.WriteString(`{"ID": 3, "Test": "asd"}`)
+
+	fakeTesting := &fakeTesting{}
+
+	test.BodyEquals(fakeTesting, &obj{ID: 2, Test: "asd"}, recorder)
+	assert.True(t, fakeTesting.hasErrors)
+}