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// Copyright 2014 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/mojo/src/mojo/edk/system/unique_identifier.h"
#include <set>
#include <string>
#include "base/containers/hash_tables.h"
#include "mojo/public/cpp/system/macros.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/mojo/src/mojo/edk/embedder/simple_platform_support.h"
namespace mojo {
namespace system {
namespace {
class UniqueIdentifierTest : public testing::Test {
public:
UniqueIdentifierTest() {}
~UniqueIdentifierTest() override {}
embedder::PlatformSupport* platform_support() { return &platform_support_; }
private:
embedder::SimplePlatformSupport platform_support_;
MOJO_DISALLOW_COPY_AND_ASSIGN(UniqueIdentifierTest);
};
TEST_F(UniqueIdentifierTest, Basic) {
// (This also checks copy constructibility.)
UniqueIdentifier id1 = UniqueIdentifier::Generate(platform_support());
EXPECT_EQ(id1, id1);
EXPECT_FALSE(id1 != id1);
EXPECT_FALSE(id1 < id1);
UniqueIdentifier id2 = UniqueIdentifier::Generate(platform_support());
EXPECT_FALSE(id2 == id1);
EXPECT_NE(id2, id1);
EXPECT_TRUE((id1 < id2) ^ (id2 < id1));
// Test copyability.
id2 = id1;
}
TEST_F(UniqueIdentifierTest, ToString) {
UniqueIdentifier id1 = UniqueIdentifier::Generate(platform_support());
std::string id1_string = id1.ToString();
EXPECT_FALSE(id1_string.empty());
// The string should be printable, and not contain certain characters.
for (size_t i = 0; i < id1_string.size(); i++) {
char c = id1_string[i];
// Printable characters, not including space.
EXPECT_GT(c, ' ');
EXPECT_LE(c, '\x7e');
// Single and double quotes, and backslashes are disallowed.
EXPECT_NE(c, '\'');
EXPECT_NE(c, '"');
EXPECT_NE(c, '\\');
}
UniqueIdentifier id2 = UniqueIdentifier::Generate(platform_support());
std::string id2_string = id2.ToString();
EXPECT_FALSE(id2_string.empty());
EXPECT_NE(id1, id2);
EXPECT_NE(id1_string, id2_string);
}
TEST_F(UniqueIdentifierTest, FromString) {
UniqueIdentifier id = UniqueIdentifier::Generate(platform_support());
std::string id_string = id.ToString();
EXPECT_FALSE(id_string.empty());
bool success = false;
UniqueIdentifier id_restored =
UniqueIdentifier::FromString(id_string, &success);
EXPECT_TRUE(success);
EXPECT_EQ(id, id_restored);
}
TEST_F(UniqueIdentifierTest, FromStringFailures) {
bool success = true;
UniqueIdentifier::FromString("", &success);
EXPECT_FALSE(success);
// That the cases below will fail requires *some* knowledge of the (private)
// encoding. So first check something that we know should succeed, to roughly
// confirm our knowledge.
success = false;
UniqueIdentifier::FromString("0123456789abcdef0123456789ABCDEF", &success);
EXPECT_TRUE(success);
success = true;
UniqueIdentifier::FromString("!@#$%^&*()_+-=/\\,.<>[]{};':\"|", &success);
EXPECT_FALSE(success);
success = true;
UniqueIdentifier::FromString("0123456789abcdef0123456789ABCDE", &success);
EXPECT_FALSE(success);
success = true;
UniqueIdentifier::FromString("0123456789abcdef0123456789ABCD", &success);
EXPECT_FALSE(success);
}
TEST_F(UniqueIdentifierTest, StdSet) {
std::set<UniqueIdentifier> s;
EXPECT_TRUE(s.empty());
UniqueIdentifier id1 = UniqueIdentifier::Generate(platform_support());
EXPECT_TRUE(s.find(id1) == s.end());
s.insert(id1);
EXPECT_TRUE(s.find(id1) != s.end());
EXPECT_FALSE(s.empty());
UniqueIdentifier id2 = UniqueIdentifier::Generate(platform_support());
EXPECT_TRUE(s.find(id2) == s.end());
s.insert(id2);
EXPECT_TRUE(s.find(id2) != s.end());
// Make sure |id1| is still in |s|.
EXPECT_TRUE(s.find(id1) != s.end());
s.erase(id1);
EXPECT_TRUE(s.find(id1) == s.end());
// Make sure |id2| is still in |s|.
EXPECT_TRUE(s.find(id2) != s.end());
s.erase(id2);
EXPECT_TRUE(s.find(id2) == s.end());
EXPECT_TRUE(s.empty());
}
TEST_F(UniqueIdentifierTest, HashSet) {
base::hash_set<UniqueIdentifier> s;
EXPECT_TRUE(s.empty());
UniqueIdentifier id1 = UniqueIdentifier::Generate(platform_support());
EXPECT_TRUE(s.find(id1) == s.end());
s.insert(id1);
EXPECT_TRUE(s.find(id1) != s.end());
EXPECT_FALSE(s.empty());
UniqueIdentifier id2 = UniqueIdentifier::Generate(platform_support());
EXPECT_TRUE(s.find(id2) == s.end());
s.insert(id2);
EXPECT_TRUE(s.find(id2) != s.end());
// Make sure |id1| is still in |s|.
EXPECT_TRUE(s.find(id1) != s.end());
s.erase(id1);
EXPECT_TRUE(s.find(id1) == s.end());
// Make sure |id2| is still in |s|.
EXPECT_TRUE(s.find(id2) != s.end());
s.erase(id2);
EXPECT_TRUE(s.find(id2) == s.end());
EXPECT_TRUE(s.empty());
}
} // namespace
} // namespace system
} // namespace mojo
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