Bug 867728 - Add tests for JSStreamWriter. r=bgirard

--HG--
extra : rebase_source : ee679794165b171ec89dfc2785647ffa7cb7f009

tools/profiler/tests/gtest/JSStreamWriterTest.cpp

@@ -0,0 +1,183 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "gtest/gtest.h"
+
+#include <sstream>
+#include "JSStreamWriter.h"
+
+TEST(JSStreamWriter, NoOutput) {
+  std::stringstream ss;
+  JSStreamWriter b(ss);
+  ASSERT_TRUE(ss.str().compare("") == 0);
+}
+
+TEST(JSStreamWriter, EmptyObject) {
+  std::stringstream ss;
+  JSStreamWriter b(ss);
+  b.BeginObject();
+  b.EndObject();
+  ASSERT_TRUE(ss.str().compare("{}") == 0);
+}
+
+TEST(JSStreamWriter, OnePropertyObject) {
+  std::stringstream ss;
+  JSStreamWriter b(ss);
+  b.BeginObject();
+  b.Name("a");
+  b.Value(1);
+  b.EndObject();
+  ASSERT_TRUE(ss.str().compare("{\"a\":1}") == 0);
+}
+
+TEST(JSStreamWriter, MultiPropertyObject) {
+  std::stringstream ss;
+  JSStreamWriter b(ss);
+  b.BeginObject();
+  b.Name("a");
+  b.Value(1);
+  b.Name("b");
+  b.Value(2);
+  b.EndObject();
+  ASSERT_TRUE(ss.str().compare("{\"a\":1,\"b\":2}") == 0);
+}
+
+TEST(JSStreamWriter, OnePropertyArray) {
+  std::stringstream ss;
+  JSStreamWriter b(ss);
+  b.BeginArray();
+  b.Value(1);
+  b.EndArray();
+  ASSERT_TRUE(ss.str().compare("[1]") == 0);
+}
+
+TEST(JSStreamWriter, MultiPropertyArray) {
+  std::stringstream ss;
+  JSStreamWriter b(ss);
+  b.BeginArray();
+  b.Value(1);
+  b.Value(2);
+  b.EndArray();
+  ASSERT_TRUE(ss.str().compare("[1,2]") == 0);
+}
+
+TEST(JSStreamWriter, NestedObject) {
+  std::stringstream ss;
+  JSStreamWriter b(ss);
+  b.BeginObject();
+  b.Name("a");
+  b.BeginObject();
+  b.Name("b");
+  b.Value(1);
+  b.EndObject();
+  b.EndObject();
+  ASSERT_TRUE(ss.str().compare("{\"a\":{\"b\":1}}") == 0);
+}
+
+TEST(JSStreamWriter, NestedObjectInArray) {
+  std::stringstream ss;
+  JSStreamWriter b(ss);
+  b.BeginArray();
+  b.BeginObject();
+  b.Name("a");
+  b.Value(1);
+  b.EndObject();
+  b.EndArray();
+  ASSERT_TRUE(ss.str().compare("[{\"a\":1}]") == 0);
+}
+
+TEST(JSStreamWriter, NestedArrayInObject) {
+  std::stringstream ss;
+  JSStreamWriter b(ss);
+  b.BeginObject();
+  b.Name("a");
+  b.BeginArray();
+  b.Value(1);
+  b.EndArray();
+  b.EndObject();
+  ASSERT_TRUE(ss.str().compare("{\"a\":[1]}") == 0);
+}
+
+TEST(JSStreamWriter, StingEscaping) {
+  std::stringstream ss;
+  JSStreamWriter b(ss);
+  b.Value("a\"a");
+  ASSERT_TRUE(ss.str().compare("\"a\\\"a\"") == 0);
+
+  std::stringstream ss2;
+  JSStreamWriter b2(ss2);
+  b2.Value("a\na");
+  ASSERT_TRUE(ss2.str().compare("\"a\\u000Aa\"") == 0);
+}
+
+TEST(JSStreamWriter, ArrayOfOjects) {
+  std::stringstream ss;
+  JSStreamWriter b(ss);
+  b.BeginArray();
+    b.BeginObject();
+    b.EndObject();
+
+    b.BeginObject();
+    b.EndObject();
+  b.EndArray();
+  ASSERT_TRUE(ss.str().compare("[{},{}]") == 0);
+}
+
+TEST(JSStreamWriter, Complex) {
+  std::stringstream ss;
+  JSStreamWriter b(ss);
+  b.BeginObject();
+    b.Name("a");
+      b.BeginArray();
+        b.Value(1);
+
+        b.BeginObject();
+        b.EndObject();
+
+        b.BeginObject();
+          b.Name("b");
+          b.Value("c");
+        b.EndObject();
+      b.EndArray();
+
+    b.Name("b");
+      b.BeginArray();
+        b.BeginArray();
+        b.EndArray();
+      b.EndArray();
+  b.EndObject();
+  ASSERT_TRUE(ss.str().compare("{\"a\":[1,{},{\"b\":\"c\"}],\"b\":[[]]}") == 0);
+}
+
+TEST(JSStreamWriter, Complex2) {
+  std::stringstream ss;
+  JSStreamWriter b(ss);
+  b.BeginObject();
+    b.Name("a");
+      b.BeginArray();
+        b.BeginObject();
+          b.Name("b");
+            b.Value("c");
+          b.Name("d");
+            b.BeginArray();
+              b.BeginObject();
+                b.Name("e");
+                  b.BeginArray();
+                    b.BeginObject();
+                      b.Name("f");
+                        b.Value("g");
+                    b.EndObject();
+                    b.BeginObject();
+                      b.Name("h");
+                        b.Value("i");
+                    b.EndObject();
+                  b.EndArray();
+              b.EndObject();
+            b.EndArray();
+        b.EndObject();
+      b.EndArray();
+  b.EndObject();
+  ASSERT_TRUE(ss.str().compare("{\"a\":[{\"b\":\"c\",\"d\":[{\"e\":[{\"f\":\"g\"},{\"h\":\"i\"}]}]}]}") 
+}