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// Copyright (c) 2009 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 "chrome/installer/util/version.h"
#include <string>
#include <vector>
#include "base/scoped_ptr.h"
#include "testing/gtest/include/gtest/gtest.h"
static const installer::Version* kNoVersion = NULL;
TEST(VersionTest, Parse) {
EXPECT_EQ(installer::Version::GetVersionFromString(L"1"), kNoVersion);
EXPECT_EQ(installer::Version::GetVersionFromString(L"1.2"), kNoVersion);
EXPECT_EQ(installer::Version::GetVersionFromString(L"1.2.3"), kNoVersion);
EXPECT_EQ(installer::Version::GetVersionFromString(L"1.2.3.4.5"), kNoVersion);
EXPECT_EQ(installer::Version::GetVersionFromString(L"hokum"), kNoVersion);
scoped_ptr<installer::Version> v1(
installer::Version::GetVersionFromString(L"1.22.333.4444"));
EXPECT_EQ(v1->GetString(), L"1.22.333.4444");
}
bool Implies(bool p, bool q) { return !p | q; }
TEST(VersionTest, Comparison) {
static const wchar_t* version_strings[] = {
L"0.0.0.0",
L"1.0.0.0",
L"0.1.0.0",
L"0.0.1.0",
L"0.0.0.1",
L"2.0.193.1",
L"3.0.183.1",
L"3.0.187.1",
L"3.0.189.0",
};
std::vector<const installer::Version*> versions;
for (size_t i = 0; i < _countof(version_strings); ++i) {
std::wstring version_string(version_strings[i]);
const installer::Version* version =
installer::Version::GetVersionFromString(version_string);
EXPECT_NE(version, kNoVersion);
EXPECT_EQ(version_string, version->GetString());
versions.push_back(version);
}
// Compare all N*N pairs and check that IsHigherThan is antireflexive.
for (size_t i = 0; i < versions.size(); ++i) {
const installer::Version* v1 = versions[i];
for (size_t j = 0; j < versions.size(); ++j) {
const installer::Version* v2 = versions[j];
// Check exactly one of '>', '<', or '=' is true.
bool higher = v1->IsHigherThan(v2);
bool lower = v2->IsHigherThan(v1);
bool equal = v1->GetString() == v2->GetString();
EXPECT_EQ(1, higher + lower + equal);
}
}
// Compare all N*N*N triples and check that IsHigherThan is a total order.
for (size_t i = 0; i < versions.size(); ++i) {
const installer::Version* v1 = versions[i];
for (size_t j = 0; j < versions.size(); ++j) {
const installer::Version* v2 = versions[j];
for (size_t k = 0; k < versions.size(); ++k) {
const installer::Version* v3 = versions[j];
EXPECT_TRUE(Implies(v2->IsHigherThan(v1) && v3->IsHigherThan(v2),
v3->IsHigherThan(v1)));
}
}
}
for (size_t i = 0; i < versions.size(); ++i) {
delete versions[i];
}
}
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