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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/keyed_service/content/browser_context_dependency_manager.h"
#include "base/memory/raw_ptr.h"
#include "components/keyed_service/content/browser_context_keyed_service_factory.h"
#include "testing/gtest/include/gtest/gtest.h"
class BrowserContextDependencyManagerUnittests : public ::testing::Test {
protected:
// To get around class access:
void DependOn(BrowserContextKeyedServiceFactory* child,
BrowserContextKeyedServiceFactory* parent) {
child->DependsOn(parent);
}
BrowserContextDependencyManager* manager() { return &dependency_manager_; }
std::vector<std::string>* shutdown_order() { return &shutdown_order_; }
private:
BrowserContextDependencyManager dependency_manager_;
std::vector<std::string> shutdown_order_;
};
class TestService : public BrowserContextKeyedServiceFactory {
public:
TestService(const std::string& name,
std::vector<std::string>* fill_on_shutdown,
BrowserContextDependencyManager* manager)
: BrowserContextKeyedServiceFactory("TestService", manager),
name_(name),
fill_on_shutdown_(fill_on_shutdown) {}
std::unique_ptr<KeyedService> BuildServiceInstanceForBrowserContext(
content::BrowserContext* context) const override {
ADD_FAILURE() << "This isn't part of the tests!";
return nullptr;
}
void BrowserContextShutdown(content::BrowserContext* context) override {
fill_on_shutdown_->push_back(name_);
}
private:
const std::string name_;
raw_ptr<std::vector<std::string>> fill_on_shutdown_;
};
// Tests that we can deal with a single component.
TEST_F(BrowserContextDependencyManagerUnittests, SingleCase) {
TestService service("service", shutdown_order(), manager());
manager()->DestroyBrowserContextServices(nullptr);
ASSERT_EQ(1U, shutdown_order()->size());
EXPECT_STREQ("service", (*shutdown_order())[0].c_str());
}
// Tests that we get a simple one component depends on the other case.
TEST_F(BrowserContextDependencyManagerUnittests, SimpleDependency) {
TestService parent("parent", shutdown_order(), manager());
TestService child("child", shutdown_order(), manager());
DependOn(&child, &parent);
manager()->DestroyBrowserContextServices(nullptr);
ASSERT_EQ(2U, shutdown_order()->size());
EXPECT_STREQ("child", (*shutdown_order())[0].c_str());
EXPECT_STREQ("parent", (*shutdown_order())[1].c_str());
}
// Tests two children, one parent
TEST_F(BrowserContextDependencyManagerUnittests, TwoChildrenOneParent) {
TestService parent("parent", shutdown_order(), manager());
TestService child1("child1", shutdown_order(), manager());
TestService child2("child2", shutdown_order(), manager());
DependOn(&child1, &parent);
DependOn(&child2, &parent);
manager()->DestroyBrowserContextServices(nullptr);
ASSERT_EQ(3U, shutdown_order()->size());
EXPECT_STREQ("child2", (*shutdown_order())[0].c_str());
EXPECT_STREQ("child1", (*shutdown_order())[1].c_str());
EXPECT_STREQ("parent", (*shutdown_order())[2].c_str());
}
// Tests an M configuration
TEST_F(BrowserContextDependencyManagerUnittests, MConfiguration) {
TestService parent1("parent1", shutdown_order(), manager());
TestService parent2("parent2", shutdown_order(), manager());
TestService child_of_1("child_of_1", shutdown_order(), manager());
DependOn(&child_of_1, &parent1);
TestService child_of_12("child_of_12", shutdown_order(), manager());
DependOn(&child_of_12, &parent1);
DependOn(&child_of_12, &parent2);
TestService child_of_2("child_of_2", shutdown_order(), manager());
DependOn(&child_of_2, &parent2);
manager()->DestroyBrowserContextServices(nullptr);
ASSERT_EQ(5U, shutdown_order()->size());
EXPECT_STREQ("child_of_2", (*shutdown_order())[0].c_str());
EXPECT_STREQ("child_of_12", (*shutdown_order())[1].c_str());
EXPECT_STREQ("child_of_1", (*shutdown_order())[2].c_str());
EXPECT_STREQ("parent2", (*shutdown_order())[3].c_str());
EXPECT_STREQ("parent1", (*shutdown_order())[4].c_str());
}
// Tests that it can deal with a simple diamond.
TEST_F(BrowserContextDependencyManagerUnittests, DiamondConfiguration) {
TestService parent("parent", shutdown_order(), manager());
TestService middle_row_1("middle_row_1", shutdown_order(), manager());
DependOn(&middle_row_1, &parent);
TestService middle_row_2("middle_row_2", shutdown_order(), manager());
DependOn(&middle_row_2, &parent);
TestService bottom("bottom", shutdown_order(), manager());
DependOn(&bottom, &middle_row_1);
DependOn(&bottom, &middle_row_2);
manager()->DestroyBrowserContextServices(nullptr);
ASSERT_EQ(4U, shutdown_order()->size());
EXPECT_STREQ("bottom", (*shutdown_order())[0].c_str());
EXPECT_STREQ("middle_row_2", (*shutdown_order())[1].c_str());
EXPECT_STREQ("middle_row_1", (*shutdown_order())[2].c_str());
EXPECT_STREQ("parent", (*shutdown_order())[3].c_str());
}
// A final test that works with a more complex graph.
TEST_F(BrowserContextDependencyManagerUnittests, ComplexGraph) {
TestService everything_depends_on_me(
"everything_depends_on_me", shutdown_order(), manager());
TestService intermediary_service(
"intermediary_service", shutdown_order(), manager());
DependOn(&intermediary_service, &everything_depends_on_me);
TestService specialized_service(
"specialized_service", shutdown_order(), manager());
DependOn(&specialized_service, &everything_depends_on_me);
DependOn(&specialized_service, &intermediary_service);
TestService other_root("other_root", shutdown_order(), manager());
TestService other_intermediary(
"other_intermediary", shutdown_order(), manager());
DependOn(&other_intermediary, &other_root);
TestService bottom("bottom", shutdown_order(), manager());
DependOn(&bottom, &specialized_service);
DependOn(&bottom, &other_intermediary);
manager()->DestroyBrowserContextServices(nullptr);
ASSERT_EQ(6U, shutdown_order()->size());
EXPECT_STREQ("bottom", (*shutdown_order())[0].c_str());
EXPECT_STREQ("specialized_service", (*shutdown_order())[1].c_str());
EXPECT_STREQ("other_intermediary", (*shutdown_order())[2].c_str());
EXPECT_STREQ("intermediary_service", (*shutdown_order())[3].c_str());
EXPECT_STREQ("other_root", (*shutdown_order())[4].c_str());
EXPECT_STREQ("everything_depends_on_me", (*shutdown_order())[5].c_str());
}
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