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// Copyright 2016 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 "third_party/blink/renderer/core/timing/performance_observer.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/blink/public/platform/task_type.h"
#include "third_party/blink/renderer/bindings/core/v8/v8_binding_for_testing.h"
#include "third_party/blink/renderer/bindings/core/v8/v8_performance_mark_options.h"
#include "third_party/blink/renderer/bindings/core/v8/v8_performance_observer_callback.h"
#include "third_party/blink/renderer/bindings/core/v8/v8_performance_observer_init.h"
#include "third_party/blink/renderer/core/execution_context/execution_context.h"
#include "third_party/blink/renderer/core/timing/layout_shift.h"
#include "third_party/blink/renderer/core/timing/performance.h"
#include "third_party/blink/renderer/core/timing/performance_mark.h"
#include "third_party/blink/renderer/core/timing/window_performance.h"
namespace blink {
class MockPerformance : public Performance {
public:
explicit MockPerformance(ScriptState* script_state)
: Performance(base::TimeTicks(),
ExecutionContext::From(script_state)
->GetTaskRunner(TaskType::kPerformanceTimeline)) {}
~MockPerformance() override = default;
ExecutionContext* GetExecutionContext() const override { return nullptr; }
};
class PerformanceObserverTest : public testing::Test {
protected:
void Initialize(ScriptState* script_state) {
v8::Local<v8::Function> callback =
v8::Function::New(script_state->GetContext(), nullptr).ToLocalChecked();
base_ = MakeGarbageCollected<MockPerformance>(script_state);
cb_ = V8PerformanceObserverCallback::Create(callback);
observer_ = MakeGarbageCollected<PerformanceObserver>(
ExecutionContext::From(script_state), base_, cb_);
}
bool IsRegistered() { return observer_->is_registered_; }
int NumPerformanceEntries() { return observer_->performance_entries_.size(); }
void Deliver() { observer_->Deliver(); }
Persistent<MockPerformance> base_;
Persistent<V8PerformanceObserverCallback> cb_;
Persistent<PerformanceObserver> observer_;
};
TEST_F(PerformanceObserverTest, Observe) {
V8TestingScope scope;
Initialize(scope.GetScriptState());
NonThrowableExceptionState exception_state;
PerformanceObserverInit* options = PerformanceObserverInit::Create();
Vector<String> entry_type_vec;
entry_type_vec.push_back("mark");
options->setEntryTypes(entry_type_vec);
observer_->observe(options, exception_state);
EXPECT_TRUE(IsRegistered());
}
TEST_F(PerformanceObserverTest, ObserveWithBufferedFlag) {
V8TestingScope scope;
Initialize(scope.GetScriptState());
NonThrowableExceptionState exception_state;
PerformanceObserverInit* options = PerformanceObserverInit::Create();
options->setType("layout-shift");
options->setBuffered(true);
EXPECT_EQ(0, NumPerformanceEntries());
// add a layout-shift to performance so getEntries() returns it
auto* entry = MakeGarbageCollected<LayoutShift>(0.0, 1234, true, 5678);
base_->AddLayoutShiftBuffer(*entry);
// call observe with the buffered flag
observer_->observe(options, exception_state);
EXPECT_TRUE(IsRegistered());
// Verify that the entry was added to the performance entries
EXPECT_EQ(1, NumPerformanceEntries());
}
TEST_F(PerformanceObserverTest, Enqueue) {
V8TestingScope scope;
NonThrowableExceptionState exception_state;
Initialize(scope.GetScriptState());
PerformanceMarkOptions* options = PerformanceMarkOptions::Create();
options->setStartTime(1234);
Persistent<PerformanceEntry> entry = PerformanceMark::Create(
scope.GetScriptState(), "m", options, exception_state);
EXPECT_EQ(0, NumPerformanceEntries());
observer_->EnqueuePerformanceEntry(*entry);
EXPECT_EQ(1, NumPerformanceEntries());
}
TEST_F(PerformanceObserverTest, Deliver) {
V8TestingScope scope;
NonThrowableExceptionState exception_state;
Initialize(scope.GetScriptState());
PerformanceMarkOptions* options = PerformanceMarkOptions::Create();
options->setStartTime(1234);
Persistent<PerformanceEntry> entry = PerformanceMark::Create(
scope.GetScriptState(), "m", options, exception_state);
EXPECT_EQ(0, NumPerformanceEntries());
observer_->EnqueuePerformanceEntry(*entry);
EXPECT_EQ(1, NumPerformanceEntries());
Deliver();
EXPECT_EQ(0, NumPerformanceEntries());
}
TEST_F(PerformanceObserverTest, Disconnect) {
V8TestingScope scope;
NonThrowableExceptionState exception_state;
Initialize(scope.GetScriptState());
PerformanceMarkOptions* options = PerformanceMarkOptions::Create();
options->setStartTime(1234);
Persistent<PerformanceEntry> entry = PerformanceMark::Create(
scope.GetScriptState(), "m", options, exception_state);
EXPECT_EQ(0, NumPerformanceEntries());
observer_->EnqueuePerformanceEntry(*entry);
EXPECT_EQ(1, NumPerformanceEntries());
observer_->disconnect();
EXPECT_FALSE(IsRegistered());
EXPECT_EQ(0, NumPerformanceEntries());
}
} // namespace blink
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