gin/converter_unittest.cc

   1 // Copyright 2013 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 "gin/converter.h"
   6
   7 #include <limits.h>
   8
   9 #include "base/basictypes.h"
  10 #include "base/compiler_specific.h"
  11 #include "base/memory/scoped_ptr.h"
  12 #include "gin/public/isolate_holder.h"
  13 #include "gin/test/v8_test.h"
  14 #include "testing/gtest/include/gtest/gtest.h"
  15 #include "v8/include/v8.h"
  16
  17 namespace gin {
  18
  19 using v8::Array;
  20 using v8::Boolean;
  21 using v8::HandleScope;
  22 using v8::Integer;
  23 using v8::Local;
  24 using v8::Null;
  25 using v8::Number;
  26 using v8::Object;
  27 using v8::String;
  28 using v8::Undefined;
  29 using v8::Value;
  30
  31 typedef V8Test ConverterTest;
  32
  33 TEST_F(ConverterTest, Bool) {
  34   HandleScope handle_scope(instance_->isolate());
  35
  36   EXPECT_TRUE(Converter<bool>::ToV8(instance_->isolate(), true)->StrictEquals(
  37       Boolean::New(instance_->isolate(), true)));
  38   EXPECT_TRUE(Converter<bool>::ToV8(instance_->isolate(), false)->StrictEquals(
  39       Boolean::New(instance_->isolate(), false)));
  40
  41   struct {
  42     Local<Value> input;
  43     bool expected;
  44   } test_data[] = {
  45     { Boolean::New(instance_->isolate(), false).As<Value>(), false },
  46     { Boolean::New(instance_->isolate(), true).As<Value>(), true },
  47     { Number::New(instance_->isolate(), 0).As<Value>(), false },
  48     { Number::New(instance_->isolate(), 1).As<Value>(), true },
  49     { Number::New(instance_->isolate(), -1).As<Value>(), true },
  50     { Number::New(instance_->isolate(), 0.1).As<Value>(), true },
  51     { String::NewFromUtf8(instance_->isolate(), "").As<Value>(), false },
  52     { String::NewFromUtf8(instance_->isolate(), "foo").As<Value>(), true },
  53     { Object::New(instance_->isolate()).As<Value>(), true },
  54     { Null(instance_->isolate()).As<Value>(), false },
  55     { Undefined(instance_->isolate()).As<Value>(), false },
  56   };
  57
  58   for (size_t i = 0; i < arraysize(test_data); ++i) {
  59     bool result = false;
  60     EXPECT_TRUE(Converter<bool>::FromV8(instance_->isolate(),
  61                                         test_data[i].input, &result));
  62     EXPECT_EQ(test_data[i].expected, result);
  63
  64     result = true;
  65     EXPECT_TRUE(Converter<bool>::FromV8(instance_->isolate(),
  66                                         test_data[i].input, &result));
  67     EXPECT_EQ(test_data[i].expected, result);
  68   }
  69 }
  70
  71 TEST_F(ConverterTest, Int32) {
  72   HandleScope handle_scope(instance_->isolate());
  73
  74   int test_data_to[] = {-1, 0, 1};
  75   for (size_t i = 0; i < arraysize(test_data_to); ++i) {
  76     EXPECT_TRUE(Converter<int32_t>::ToV8(instance_->isolate(), test_data_to[i])
  77                     ->StrictEquals(
  78                           Integer::New(instance_->isolate(), test_data_to[i])));
  79   }
  80
  81   struct {
  82     v8::Local<v8::Value> input;
  83     bool expect_sucess;
  84     int expected_result;
  85   } test_data_from[] = {
  86     { Boolean::New(instance_->isolate(), false).As<Value>(), false, 0 },
  87     { Boolean::New(instance_->isolate(), true).As<Value>(), false, 0 },
  88     { Integer::New(instance_->isolate(), -1).As<Value>(), true, -1 },
  89     { Integer::New(instance_->isolate(), 0).As<Value>(), true, 0 },
  90     { Integer::New(instance_->isolate(), 1).As<Value>(), true, 1 },
  91     { Number::New(instance_->isolate(), -1).As<Value>(), true, -1 },
  92     { Number::New(instance_->isolate(), 1.1).As<Value>(), false, 0 },
  93     { String::NewFromUtf8(instance_->isolate(), "42").As<Value>(), false, 0 },
  94     { String::NewFromUtf8(instance_->isolate(), "foo").As<Value>(), false, 0 },
  95     { Object::New(instance_->isolate()).As<Value>(), false, 0 },
  96     { Array::New(instance_->isolate()).As<Value>(), false, 0 },
  97     { v8::Null(instance_->isolate()).As<Value>(), false, 0 },
  98     { v8::Undefined(instance_->isolate()).As<Value>(), false, 0 },
  99   };
 100
 101   for (size_t i = 0; i < arraysize(test_data_from); ++i) {
 102     int32_t result = std::numeric_limits<int32_t>::min();
 103     bool success = Converter<int32_t>::FromV8(instance_->isolate(),
 104                                               test_data_from[i].input, &result);
 105     EXPECT_EQ(test_data_from[i].expect_sucess, success) << i;
 106     if (success)
 107       EXPECT_EQ(test_data_from[i].expected_result, result) << i;
 108   }
 109 }
 110
 111 TEST_F(ConverterTest, Vector) {
 112   HandleScope handle_scope(instance_->isolate());
 113
 114   std::vector<int> expected;
 115   expected.push_back(-1);
 116   expected.push_back(0);
 117   expected.push_back(1);
 118
 119   auto maybe = Converter<std::vector<int>>::ToV8(
 120       instance_->isolate()->GetCurrentContext(), expected);
 121   Local<Value> js_value;
 122   EXPECT_TRUE(maybe.ToLocal(&js_value));
 123   Local<Array> js_array2 = Local<Array>::Cast(js_value);
 124   EXPECT_EQ(3u, js_array2->Length());
 125   for (size_t i = 0; i < expected.size(); ++i) {
 126     EXPECT_TRUE(Integer::New(instance_->isolate(), expected[i])
 127                     ->StrictEquals(js_array2->Get(static_cast<int>(i))));
 128   }
 129 }
 130
 131 }  // namespace gin