base/trace_event/trace_event_argument_unittest.cc

   1 // Copyright (c) 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "base/trace_event/trace_event_argument.h"
   6 #include "base/values.h"
   7 #include "testing/gtest/include/gtest/gtest.h"
   8
   9 namespace base {
  10 namespace trace_event {
  11
  12 TEST(TraceEventArgumentTest, FlatDictionary) {
  13   scoped_refptr<TracedValue> value = new TracedValue();
  14   value->SetInteger("int", 2014);
  15   value->SetDouble("double", 0.0);
  16   value->SetBoolean("bool", true);
  17   value->SetString("string", "string");
  18   std::string json = "PREFIX";
  19   value->AppendAsTraceFormat(&json);
  20   EXPECT_EQ(
  21       "PREFIX{\"bool\":true,\"double\":0.0,\"int\":2014,\"string\":\"string\"}",
  22       json);
  23 }
  24
  25 TEST(TraceEventArgumentTest, Hierarchy) {
  26   scoped_refptr<TracedValue> value = new TracedValue();
  27   value->SetInteger("i0", 2014);
  28   value->BeginDictionary("dict1");
  29   value->SetInteger("i1", 2014);
  30   value->BeginDictionary("dict2");
  31   value->SetBoolean("b2", false);
  32   value->EndDictionary();
  33   value->SetString("s1", "foo");
  34   value->EndDictionary();
  35   value->SetDouble("d0", 0.0);
  36   value->SetBoolean("b0", true);
  37   value->BeginArray("a1");
  38   value->AppendInteger(1);
  39   value->AppendBoolean(true);
  40   value->BeginDictionary();
  41   value->SetInteger("i2", 3);
  42   value->EndDictionary();
  43   value->EndArray();
  44   value->SetString("s0", "foo");
  45   std::string json;
  46   value->AppendAsTraceFormat(&json);
  47   EXPECT_EQ(
  48       "{\"a1\":[1,true,{\"i2\":3}],\"b0\":true,\"d0\":0.0,\"dict1\":{\"dict2\":"
  49       "{\"b2\":false},\"i1\":2014,\"s1\":\"foo\"},\"i0\":2014,\"s0\":"
  50       "\"foo\"}",
  51       json);
  52 }
  53
  54 TEST(TraceEventArgumentTest, LongStrings) {
  55   std::string kLongString = "supercalifragilisticexpialidocious";
  56   std::string kLongString2 = "0123456789012345678901234567890123456789";
  57   char kLongString3[4096];
  58   for (size_t i = 0; i < sizeof(kLongString3); ++i)
  59     kLongString3[i] = 'a' + (i % 25);
  60   kLongString3[sizeof(kLongString3) - 1] = '\0';
  61
  62   scoped_refptr<TracedValue> value = new TracedValue();
  63   value->SetString("a", "short");
  64   value->SetString("b", kLongString);
  65   value->BeginArray("c");
  66   value->AppendString(kLongString2);
  67   value->AppendString("");
  68   value->BeginDictionary();
  69   value->SetString("a", kLongString3);
  70   value->EndDictionary();
  71   value->EndArray();
  72
  73   std::string json;
  74   value->AppendAsTraceFormat(&json);
  75   EXPECT_EQ("{\"a\":\"short\",\"b\":\"" + kLongString + "\",\"c\":[\"" +
  76                 kLongString2 + "\",\"\",{\"a\":\"" + kLongString3 + "\"}]}",
  77             json);
  78 }
  79
  80 TEST(TraceEventArgumentTest, PassBaseValue) {
  81   FundamentalValue int_value(42);
  82   FundamentalValue bool_value(true);
  83   FundamentalValue double_value(42.0f);
  84
  85   auto dict_value = make_scoped_ptr(new DictionaryValue);
  86   dict_value->SetBoolean("bool", true);
  87   dict_value->SetInteger("int", 42);
  88   dict_value->SetDouble("double", 42.0f);
  89   dict_value->SetString("string", std::string("a") + "b");
  90   dict_value->SetString("string", std::string("a") + "b");
  91
  92   auto list_value = make_scoped_ptr(new ListValue);
  93   list_value->AppendBoolean(false);
  94   list_value->AppendInteger(1);
  95   list_value->AppendString("in_list");
  96   list_value->Append(dict_value.Pass());
  97
  98   scoped_refptr<TracedValue> value = new TracedValue();
  99   value->BeginDictionary("outer_dict");
 100   value->SetValue("inner_list", list_value.Pass());
 101   value->EndDictionary();
 102
 103   dict_value.reset();
 104   list_value.reset();
 105
 106   std::string json;
 107   value->AppendAsTraceFormat(&json);
 108   EXPECT_EQ(
 109       "{\"outer_dict\":{\"inner_list\":[false,1,\"in_list\",{\"bool\":true,"
 110       "\"double\":42.0,\"int\":42,\"string\":\"ab\"}]}}",
 111       json);
 112 }
 113
 114 TEST(TraceEventArgumentTest, PassTracedValue) {
 115   auto dict_value = make_scoped_refptr(new TracedValue);
 116   dict_value->SetInteger("a", 1);
 117
 118   auto nested_dict_value = make_scoped_refptr(new TracedValue);
 119   nested_dict_value->SetInteger("b", 2);
 120   nested_dict_value->BeginArray("c");
 121   nested_dict_value->AppendString("foo");
 122   nested_dict_value->EndArray();
 123
 124   dict_value->SetValue("e", *nested_dict_value);
 125
 126   // Check the merged result.
 127   std::string json;
 128   dict_value->AppendAsTraceFormat(&json);
 129   EXPECT_EQ("{\"a\":1,\"e\":{\"b\":2,\"c\":[\"foo\"]}}", json);
 130
 131   // Check that the passed nestd dict was left unouthced.
 132   json = "";
 133   nested_dict_value->AppendAsTraceFormat(&json);
 134   EXPECT_EQ("{\"b\":2,\"c\":[\"foo\"]}", json);
 135
 136   // And that it is still usable.
 137   nested_dict_value->SetInteger("f", 3);
 138   nested_dict_value->BeginDictionary("g");
 139   nested_dict_value->EndDictionary();
 140   json = "";
 141   nested_dict_value->AppendAsTraceFormat(&json);
 142   EXPECT_EQ("{\"b\":2,\"c\":[\"foo\"],\"f\":3,\"g\":{}}", json);
 143 }
 144
 145 }  // namespace trace_event
 146 }  // namespace base