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      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 using v8::Array;
     18 using v8::Boolean;
     19 using v8::Handle;
     20 using v8::HandleScope;
     21 using v8::Integer;
     22 using v8::Null;
     23 using v8::Number;
     24 using v8::Object;
     25 using v8::String;
     26 using v8::Undefined;
     27 using v8::Value;
     28 
     29 namespace gin {
     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     Handle<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_UNSAFE(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_UNSAFE(test_data_to); ++i) {
     76     EXPECT_TRUE(Converter<int32_t>::ToV8(instance_->isolate(),
     77         test_data_to[i])->StrictEquals(Integer::New(test_data_to[i])));
     78   }
     79 
     80   struct {
     81     v8::Handle<v8::Value> input;
     82     bool expect_sucess;
     83     int expected_result;
     84   } test_data_from[] = {
     85     { Boolean::New(instance_->isolate(), false).As<Value>(), false, 0 },
     86     { Boolean::New(instance_->isolate(), true).As<Value>(), false, 0 },
     87     { Integer::New(instance_->isolate(), -1).As<Value>(), true, -1 },
     88     { Integer::New(instance_->isolate(), 0).As<Value>(), true, 0 },
     89     { Integer::New(instance_->isolate(), 1).As<Value>(), true, 1 },
     90     { Number::New(instance_->isolate(), -1).As<Value>(), true, -1 },
     91     { Number::New(instance_->isolate(), 1.1).As<Value>(), false, 0 },
     92     { String::NewFromUtf8(instance_->isolate(), "42").As<Value>(), false, 0 },
     93     { String::NewFromUtf8(instance_->isolate(), "foo").As<Value>(), false, 0 },
     94     { Object::New(instance_->isolate()).As<Value>(), false, 0 },
     95     { Array::New(instance_->isolate()).As<Value>(), false, 0 },
     96     { v8::Null(instance_->isolate()).As<Value>(), false, 0 },
     97     { v8::Undefined(instance_->isolate()).As<Value>(), false, 0 },
     98   };
     99 
    100   for (size_t i = 0; i < ARRAYSIZE_UNSAFE(test_data_from); ++i) {
    101     int32_t result = std::numeric_limits<int32_t>::min();
    102     bool success = Converter<int32_t>::FromV8(instance_->isolate(),
    103                                               test_data_from[i].input, &result);
    104     EXPECT_EQ(test_data_from[i].expect_sucess, success) << i;
    105     if (success)
    106       EXPECT_EQ(test_data_from[i].expected_result, result) << i;
    107   }
    108 }
    109 
    110 TEST_F(ConverterTest, Vector) {
    111   HandleScope handle_scope(instance_->isolate());
    112 
    113   std::vector<int> expected;
    114   expected.push_back(-1);
    115   expected.push_back(0);
    116   expected.push_back(1);
    117 
    118   Handle<Array> js_array = Handle<Array>::Cast(
    119       Converter<std::vector<int> >::ToV8(instance_->isolate(), expected));
    120   ASSERT_FALSE(js_array.IsEmpty());
    121   EXPECT_EQ(3u, js_array->Length());
    122   for (size_t i = 0; i < expected.size(); ++i) {
    123     EXPECT_TRUE(Integer::New(instance_->isolate(), expected[i])
    124                     ->StrictEquals(js_array->Get(static_cast<int>(i))));
    125   }
    126 
    127   std::vector<int> actual;
    128   EXPECT_TRUE(Converter<std::vector<int> >::FromV8(instance_->isolate(),
    129                                                    js_array, &actual));
    130   EXPECT_EQ(expected, actual);
    131 }
    132 
    133 }  // namespace gin
    134