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// Copyright 2022 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/feed/core/v2/xsurface_datastore.h"
#include <map>
#include <string>
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace feed {
namespace {
using testing::ElementsAre;
using testing::Eq;
using testing::Pair;
using testing::Pointee;
class MockObserver : public XsurfaceDatastoreDataReader::Observer {
public:
MOCK_METHOD(void,
DatastoreEntryUpdated,
(XsurfaceDatastoreDataReader * source, const std::string& key),
(override));
MOCK_METHOD(void,
DatastoreEntryRemoved,
(XsurfaceDatastoreDataReader * source, const std::string& key),
(override));
};
TEST(XsurfaceDatastoreSliceTest, UpdateDatastoreEntry_StoresData) {
XsurfaceDatastoreSlice data;
data.UpdateDatastoreEntry("a", "b");
data.UpdateDatastoreEntry("c", "d");
EXPECT_THAT(data.FindEntry("a"), Pointee(Eq("b")));
EXPECT_THAT(data.GetAllEntries(),
ElementsAre(Pair("a", "b"), Pair("c", "d")));
}
TEST(XsurfaceDatastoreSliceTest, RemoveDatastoreEntry_RemovesData) {
XsurfaceDatastoreSlice data;
data.UpdateDatastoreEntry("a", "b");
data.UpdateDatastoreEntry("c", "d");
data.RemoveDatastoreEntry("c");
EXPECT_THAT(data.FindEntry("c"), testing::IsNull());
EXPECT_THAT(data.GetAllEntries(), ElementsAre(Pair("a", "b")));
}
TEST(XsurfaceDatastoreSliceTest, RemoveDatastoreEntry_NonExisting_DoesNothing) {
XsurfaceDatastoreSlice data;
data.RemoveDatastoreEntry("x");
EXPECT_THAT(data.GetAllEntries(), testing::IsEmpty());
}
TEST(XsurfaceDatastoreAggregateTest, Empty_DataAccess) {
XsurfaceDatastoreAggregate data({});
EXPECT_THAT(data.GetAllEntries(), testing::IsEmpty());
EXPECT_EQ(data.FindEntry("x"), nullptr);
}
TEST(XsurfaceDatastoreAggregateTest, TwoSlices_DataAccess) {
XsurfaceDatastoreSlice one;
one.UpdateDatastoreEntry("one/1", "1");
XsurfaceDatastoreSlice two;
two.UpdateDatastoreEntry("two/2", "2");
two.UpdateDatastoreEntry("two/3", "3");
XsurfaceDatastoreAggregate data({&one, &two});
testing::InSequence in_sequence;
EXPECT_THAT(
data.GetAllEntries(),
ElementsAre(Pair("one/1", "1"), Pair("two/2", "2"), Pair("two/3", "3")));
EXPECT_EQ(data.FindEntry("x"), nullptr);
EXPECT_THAT(data.FindEntry("one/1"), Pointee(Eq("1")));
EXPECT_THAT(data.FindEntry("two/2"), Pointee(Eq("2")));
}
TEST(XsurfaceDatastoreAggregateTest, TwoSlices_EventsAreObserved) {
XsurfaceDatastoreSlice one;
one.UpdateDatastoreEntry("one/pre-existing", "no-events");
XsurfaceDatastoreSlice two;
two.UpdateDatastoreEntry("two/pre-existing", "no-events");
XsurfaceDatastoreAggregate data({&one, &two});
MockObserver observer;
data.AddObserver(&observer);
testing::InSequence in_sequence;
EXPECT_CALL(observer, DatastoreEntryUpdated(Eq(&data), Eq("one/1"))).Times(2);
EXPECT_CALL(observer, DatastoreEntryRemoved(Eq(&data), Eq("one/1")));
one.UpdateDatastoreEntry("one/1", "1");
two.UpdateDatastoreEntry("one/1", "2");
one.RemoveDatastoreEntry("one/1");
// Stop observing, ensure events are not sent.
EXPECT_CALL(observer, DatastoreEntryRemoved(Eq(&data), Eq("one/1"))).Times(0);
data.RemoveObserver(&observer);
one.UpdateDatastoreEntry("one/1", "3");
}
} // namespace
} // namespace feed
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