src/third_party/WebKit/Source/bindings/v8/ScriptPromiseResolverTest.cpp

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  30
  31 #include "config.h"
  32 #include "bindings/v8/ScriptPromiseResolver.h"
  33
  34 #include "bindings/v8/ScriptPromise.h"
  35 #include "bindings/v8/V8Binding.h"
  36
  37 #include <gtest/gtest.h>
  38 #include <v8.h>
  39
  40 namespace WebCore {
  41
  42 namespace {
  43
  44 class Function : public ScriptFunction {
  45 public:
  46     static PassOwnPtr<Function> create(v8::Isolate* isolate, String* value)
  47     {
  48         return adoptPtr(new Function(isolate, value));
  49     }
  50
  51     virtual ScriptValue call(ScriptValue value) OVERRIDE
  52     {
  53         ASSERT(!value.isEmpty());
  54         *m_value = toCoreString(value.v8Value()->ToString());
  55         return value;
  56     }
  57
  58 private:
  59     Function(v8::Isolate* isolate, String* value) : ScriptFunction(isolate), m_value(value) { }
  60
  61     String* m_value;
  62 };
  63
  64 class ScriptPromiseResolverTest : public testing::Test {
  65 public:
  66     ScriptPromiseResolverTest()
  67         : m_scope(v8::Isolate::GetCurrent())
  68     {
  69         m_resolver = ScriptPromiseResolver::create(m_scope.scriptState());
  70     }
  71
  72     virtual ~ScriptPromiseResolverTest()
  73     {
  74         // Run all pending microtasks here.
  75         isolate()->RunMicrotasks();
  76     }
  77
  78     v8::Isolate* isolate() { return m_scope.isolate(); }
  79
  80 protected:
  81     RefPtr<ScriptPromiseResolver> m_resolver;
  82     V8TestingScope m_scope;
  83 };
  84
  85 TEST_F(ScriptPromiseResolverTest, initialState)
  86 {
  87     ScriptPromise promise = m_resolver->promise();
  88     ASSERT_FALSE(promise.isEmpty());
  89     String onFulfilled, onRejected;
  90     promise.then(Function::create(isolate(), &onFulfilled), Function::create(isolate(), &onRejected));
  91
  92     EXPECT_EQ(String(), onFulfilled);
  93     EXPECT_EQ(String(), onRejected);
  94
  95     isolate()->RunMicrotasks();
  96
  97     EXPECT_EQ(String(), onFulfilled);
  98     EXPECT_EQ(String(), onRejected);
  99 }
 100
 101 TEST_F(ScriptPromiseResolverTest, resolve)
 102 {
 103     ScriptPromise promise = m_resolver->promise();
 104     ASSERT_FALSE(promise.isEmpty());
 105     String onFulfilled, onRejected;
 106     promise.then(Function::create(isolate(), &onFulfilled), Function::create(isolate(), &onRejected));
 107
 108     EXPECT_EQ(String(), onFulfilled);
 109     EXPECT_EQ(String(), onRejected);
 110
 111     m_resolver->resolve("hello");
 112     EXPECT_TRUE(m_resolver->promise().isEmpty());
 113     isolate()->RunMicrotasks();
 114
 115     EXPECT_EQ("hello", onFulfilled);
 116     EXPECT_EQ(String(), onRejected);
 117 }
 118
 119 TEST_F(ScriptPromiseResolverTest, reject)
 120 {
 121     ScriptPromise promise = m_resolver->promise();
 122     ASSERT_FALSE(promise.isEmpty());
 123     String onFulfilled, onRejected;
 124     promise.then(Function::create(isolate(), &onFulfilled), Function::create(isolate(), &onRejected));
 125
 126     EXPECT_EQ(String(), onFulfilled);
 127     EXPECT_EQ(String(), onRejected);
 128
 129     m_resolver->reject("hello");
 130     EXPECT_TRUE(m_resolver->promise().isEmpty());
 131     isolate()->RunMicrotasks();
 132
 133     EXPECT_EQ(String(), onFulfilled);
 134     EXPECT_EQ("hello", onRejected);
 135 }
 136
 137 TEST_F(ScriptPromiseResolverTest, resolveOverResolve)
 138 {
 139     ScriptPromise promise = m_resolver->promise();
 140     ASSERT_FALSE(promise.isEmpty());
 141     String onFulfilled, onRejected;
 142     promise.then(Function::create(isolate(), &onFulfilled), Function::create(isolate(), &onRejected));
 143
 144     EXPECT_EQ(String(), onFulfilled);
 145     EXPECT_EQ(String(), onRejected);
 146
 147     m_resolver->resolve("hello");
 148     EXPECT_TRUE(m_resolver->promise().isEmpty());
 149     isolate()->RunMicrotasks();
 150
 151     EXPECT_EQ("hello", onFulfilled);
 152     EXPECT_EQ(String(), onRejected);
 153
 154     m_resolver->resolve("world");
 155     isolate()->RunMicrotasks();
 156
 157     EXPECT_EQ("hello", onFulfilled);
 158     EXPECT_EQ(String(), onRejected);
 159 }
 160
 161 TEST_F(ScriptPromiseResolverTest, rejectOverResolve)
 162 {
 163     ScriptPromise promise = m_resolver->promise();
 164     ASSERT_FALSE(promise.isEmpty());
 165     String onFulfilled, onRejected;
 166     promise.then(Function::create(isolate(), &onFulfilled), Function::create(isolate(), &onRejected));
 167
 168     EXPECT_EQ(String(), onFulfilled);
 169     EXPECT_EQ(String(), onRejected);
 170
 171     m_resolver->resolve("hello");
 172     EXPECT_TRUE(m_resolver->promise().isEmpty());
 173     isolate()->RunMicrotasks();
 174
 175     EXPECT_EQ("hello", onFulfilled);
 176     EXPECT_EQ(String(), onRejected);
 177
 178     m_resolver->reject("world");
 179     isolate()->RunMicrotasks();
 180
 181     EXPECT_EQ("hello", onFulfilled);
 182     EXPECT_EQ(String(), onRejected);
 183 }
 184
 185 } // namespace
 186
 187 } // namespace WebCore