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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 "base/sequence_token.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace base {
TEST(SequenceTokenTest, IsValid) {
EXPECT_FALSE(SequenceToken().IsValid());
EXPECT_TRUE(SequenceToken::Create().IsValid());
}
TEST(SequenceTokenTest, OperatorEquals) {
SequenceToken invalid_a;
SequenceToken invalid_b;
const SequenceToken valid_a = SequenceToken::Create();
const SequenceToken valid_b = SequenceToken::Create();
EXPECT_FALSE(invalid_a == invalid_a);
EXPECT_FALSE(invalid_a == invalid_b);
EXPECT_FALSE(invalid_a == valid_a);
EXPECT_FALSE(invalid_a == valid_b);
EXPECT_FALSE(valid_a == invalid_a);
EXPECT_FALSE(valid_a == invalid_b);
EXPECT_EQ(valid_a, valid_a);
EXPECT_FALSE(valid_a == valid_b);
}
TEST(SequenceTokenTest, OperatorNotEquals) {
SequenceToken invalid_a;
SequenceToken invalid_b;
const SequenceToken valid_a = SequenceToken::Create();
const SequenceToken valid_b = SequenceToken::Create();
EXPECT_NE(invalid_a, invalid_a);
EXPECT_NE(invalid_a, invalid_b);
EXPECT_NE(invalid_a, valid_a);
EXPECT_NE(invalid_a, valid_b);
EXPECT_NE(valid_a, invalid_a);
EXPECT_NE(valid_a, invalid_b);
EXPECT_FALSE(valid_a != valid_a);
EXPECT_NE(valid_a, valid_b);
}
TEST(SequenceTokenTest, GetForCurrentThread) {
const SequenceToken token = SequenceToken::Create();
EXPECT_FALSE(SequenceToken::GetForCurrentThread().IsValid());
{
ScopedSetSequenceTokenForCurrentThread
scoped_set_sequence_token_for_current_thread(token);
EXPECT_TRUE(SequenceToken::GetForCurrentThread().IsValid());
EXPECT_EQ(token, SequenceToken::GetForCurrentThread());
}
EXPECT_FALSE(SequenceToken::GetForCurrentThread().IsValid());
}
TEST(SequenceTokenTest, ToInternalValue) {
const SequenceToken token1 = SequenceToken::Create();
const SequenceToken token2 = SequenceToken::Create();
// Confirm that internal values are unique.
EXPECT_NE(token1.ToInternalValue(), token2.ToInternalValue());
}
// Expect a default-constructed TaskToken to be invalid and not equal to
// another invalid TaskToken.
TEST(TaskTokenTest, InvalidDefaultConstructed) {
EXPECT_FALSE(TaskToken().IsValid());
EXPECT_NE(TaskToken(), TaskToken());
}
// Expect a TaskToken returned by TaskToken::GetForCurrentThread() outside the
// scope of a ScopedSetSequenceTokenForCurrentThread to be invalid.
TEST(TaskTokenTest, InvalidOutsideScope) {
EXPECT_FALSE(TaskToken::GetForCurrentThread().IsValid());
}
// Expect an invalid TaskToken not to be equal with a valid TaskToken.
TEST(TaskTokenTest, ValidNotEqualsInvalid) {
ScopedSetSequenceTokenForCurrentThread
scoped_set_sequence_token_for_current_thread(SequenceToken::Create());
TaskToken valid = TaskToken::GetForCurrentThread();
TaskToken invalid;
EXPECT_NE(valid, invalid);
}
// Expect TaskTokens returned by TaskToken::GetForCurrentThread() in the scope
// of the same ScopedSetSequenceTokenForCurrentThread instance to be
// valid and equal with each other.
TEST(TaskTokenTest, EqualInSameScope) {
ScopedSetSequenceTokenForCurrentThread
scoped_set_sequence_token_for_current_thread(SequenceToken::Create());
const TaskToken token_a = TaskToken::GetForCurrentThread();
const TaskToken token_b = TaskToken::GetForCurrentThread();
EXPECT_TRUE(token_a.IsValid());
EXPECT_TRUE(token_b.IsValid());
EXPECT_EQ(token_a, token_b);
}
// Expect TaskTokens returned by TaskToken::GetForCurrentThread() in the scope
// of different ScopedSetSequenceTokenForCurrentThread instances to be
// valid but not equal to each other.
TEST(TaskTokenTest, NotEqualInDifferentScopes) {
TaskToken token_a;
TaskToken token_b;
{
ScopedSetSequenceTokenForCurrentThread
scoped_set_sequence_token_for_current_thread(SequenceToken::Create());
token_a = TaskToken::GetForCurrentThread();
}
{
ScopedSetSequenceTokenForCurrentThread
scoped_set_sequence_token_for_current_thread(SequenceToken::Create());
token_b = TaskToken::GetForCurrentThread();
}
EXPECT_TRUE(token_a.IsValid());
EXPECT_TRUE(token_b.IsValid());
EXPECT_NE(token_a, token_b);
}
} // namespace base
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