Update //base to chromium 9659b08ea5a34f889dc4166217f438095ddc10d2

base/trace_event/trace_event_argument_unittest.cc

 // Copyright (c) 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/trace_event/trace_event_argument.h"
+#include "base/values.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace base {
 namespace trace_event {
 
 TEST(TraceEventArgumentTest, FlatDictionary) {
   scoped_refptr<TracedValue> value = new TracedValue();
   value->SetInteger("int", 2014);
   value->SetDouble("double", 0.0);
   value->SetBoolean("bool", true);
   value->SetString("string", "string");
-  std::string json;
+  std::string json = "PREFIX";
   value->AppendAsTraceFormat(&json);
-  EXPECT_EQ("{\"bool\":true,\"double\":0.0,\"int\":2014,\"string\":\"string\"}",
-            json);
+  EXPECT_EQ(
+      "PREFIX{\"bool\":true,\"double\":0.0,\"int\":2014,\"string\":\"string\"}",
+      json);
 }
 
 TEST(TraceEventArgumentTest, Hierarchy) {
   scoped_refptr<TracedValue> value = new TracedValue();
   value->SetInteger("i0", 2014);
   value->BeginDictionary("dict1");
   value->SetInteger("i1", 2014);
   value->BeginDictionary("dict2");
   value->SetBoolean("b2", false);
   value->EndDictionary();
@@ skipping 11 matching lines @@
   value->SetString("s0", "foo");
   std::string json;
   value->AppendAsTraceFormat(&json);
   EXPECT_EQ(
       "{\"a1\":[1,true,{\"i2\":3}],\"b0\":true,\"d0\":0.0,\"dict1\":{\"dict2\":"
       "{\"b2\":false},\"i1\":2014,\"s1\":\"foo\"},\"i0\":2014,\"s0\":"
       "\"foo\"}",
       json);
 }
 
+TEST(TraceEventArgumentTest, LongStrings) {
+  std::string kLongString = "supercalifragilisticexpialidocious";
+  std::string kLongString2 = "0123456789012345678901234567890123456789";
+  char kLongString3[4096];
+  for (size_t i = 0; i < sizeof(kLongString3); ++i)
+    kLongString3[i] = 'a' + (i % 25);
+  kLongString3[sizeof(kLongString3) - 1] = '\0';
+
+  scoped_refptr<TracedValue> value = new TracedValue();
+  value->SetString("a", "short");
+  value->SetString("b", kLongString);
+  value->BeginArray("c");
+  value->AppendString(kLongString2);
+  value->AppendString("");
+  value->BeginDictionary();
+  value->SetString("a", kLongString3);
+  value->EndDictionary();
+  value->EndArray();
+
+  std::string json;
+  value->AppendAsTraceFormat(&json);
+  EXPECT_EQ("{\"a\":\"short\",\"b\":\"" + kLongString + "\",\"c\":[\"" +
+                kLongString2 + "\",\"\",{\"a\":\"" + kLongString3 + "\"}]}",
+            json);
+}
+
+TEST(TraceEventArgumentTest, PassBaseValue) {
+  FundamentalValue int_value(42);
+  FundamentalValue bool_value(true);
+  FundamentalValue double_value(42.0f);
+
+  auto dict_value = make_scoped_ptr(new DictionaryValue);
+  dict_value->SetBoolean("bool", true);
+  dict_value->SetInteger("int", 42);
+  dict_value->SetDouble("double", 42.0f);
+  dict_value->SetString("string", std::string("a") + "b");
+  dict_value->SetString("string", std::string("a") + "b");
+
+  auto list_value = make_scoped_ptr(new ListValue);
+  list_value->AppendBoolean(false);
+  list_value->AppendInteger(1);
+  list_value->AppendString("in_list");
+  list_value->Append(dict_value.Pass());
+
+  scoped_refptr<TracedValue> value = new TracedValue();
+  value->BeginDictionary("outer_dict");
+  value->SetValue("inner_list", list_value.Pass());
+  value->EndDictionary();
+
+  dict_value.reset();
+  list_value.reset();
+
+  std::string json;
+  value->AppendAsTraceFormat(&json);
+  EXPECT_EQ(
+      "{\"outer_dict\":{\"inner_list\":[false,1,\"in_list\",{\"bool\":true,"
+      "\"double\":42.0,\"int\":42,\"string\":\"ab\"}]}}",
+      json);
+}
+
+TEST(TraceEventArgumentTest, PassTracedValue) {
+  auto dict_value = make_scoped_refptr(new TracedValue);
+  dict_value->SetInteger("a", 1);
+
+  auto nested_dict_value = make_scoped_refptr(new TracedValue);
+  nested_dict_value->SetInteger("b", 2);
+  nested_dict_value->BeginArray("c");
+  nested_dict_value->AppendString("foo");
+  nested_dict_value->EndArray();
+
+  dict_value->SetValue("e", *nested_dict_value);
+
+  // Check the merged result.
+  std::string json;
+  dict_value->AppendAsTraceFormat(&json);
+  EXPECT_EQ("{\"a\":1,\"e\":{\"b\":2,\"c\":[\"foo\"]}}", json);
+
+  // Check that the passed nestd dict was left unouthced.
+  json = "";
+  nested_dict_value->AppendAsTraceFormat(&json);
+  EXPECT_EQ("{\"b\":2,\"c\":[\"foo\"]}", json);
+
+  // And that it is still usable.
+  nested_dict_value->SetInteger("f", 3);
+  nested_dict_value->BeginDictionary("g");
+  nested_dict_value->EndDictionary();
+  json = "";
+  nested_dict_value->AppendAsTraceFormat(&json);
+  EXPECT_EQ("{\"b\":2,\"c\":[\"foo\"],\"f\":3,\"g\":{}}", json);
+}
+
 }  // namespace trace_event
 }  // namespace base