skia2/tests/MessageBusTest.cpp

54 lines
1.5 KiB
C++
Raw Normal View History

/*
* Copyright 2013 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkMessageBus.h"
#include "Test.h"
struct TestMessage {
int x;
float y;
};
DECLARE_SKMESSAGEBUS_MESSAGE(TestMessage)
DEF_TEST(MessageBus, r) {
// Register two inboxes to receive all TestMessages.
SkMessageBus<TestMessage>::Inbox inbox1, inbox2;
// Send two messages.
const TestMessage m1 = { 5, 4.2f };
const TestMessage m2 = { 6, 4.3f };
SkMessageBus<TestMessage>::Post(m1);
SkMessageBus<TestMessage>::Post(m2);
// Make sure we got two.
SkTArray<TestMessage> messages;
inbox1.poll(&messages);
REPORTER_ASSERT(r, 2 == messages.count());
REPORTER_ASSERT(r, 5 == messages[0].x);
REPORTER_ASSERT(r, 6 == messages[1].x);
// Send another; check we get just that one.
const TestMessage m3 = { 1, 0.3f };
SkMessageBus<TestMessage>::Post(m3);
inbox1.poll(&messages);
REPORTER_ASSERT(r, 1 == messages.count());
REPORTER_ASSERT(r, 1 == messages[0].x);
// Nothing was sent since the last read.
inbox1.poll(&messages);
REPORTER_ASSERT(r, 0 == messages.count());
// Over all this time, inbox2 should have piled up 3 messages.
inbox2.poll(&messages);
REPORTER_ASSERT(r, 3 == messages.count());
REPORTER_ASSERT(r, 5 == messages[0].x);
REPORTER_ASSERT(r, 6 == messages[1].x);
REPORTER_ASSERT(r, 1 == messages[2].x);
}
// Multithreaded tests tbd.