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/*
* Copyright (c) 2022 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "test/pc/e2e/analyzer/video/names_collection.h"
#include <optional>
#include <string>
#include <vector>
#include "test/gmock.h"
#include "test/gtest.h"
namespace webrtc {
namespace {
using ::testing::Eq;
using ::testing::Ne;
TEST(NamesCollectionTest, NamesFromCtorHasUniqueIndexes) {
NamesCollection collection(std::vector<std::string>{"alice", "bob"});
EXPECT_THAT(collection.size(), Eq(static_cast<size_t>(2)));
EXPECT_TRUE(collection.HasName("alice"));
EXPECT_THAT(collection.name(collection.index("alice")), Eq("alice"));
EXPECT_TRUE(collection.HasName("bob"));
EXPECT_THAT(collection.name(collection.index("bob")), Eq("bob"));
EXPECT_THAT(collection.index("bob"), Ne(collection.index("alice")));
}
TEST(NamesCollectionTest, AddedNamesHasIndexes) {
NamesCollection collection(std::vector<std::string>{});
collection.AddIfAbsent("alice");
EXPECT_THAT(collection.size(), Eq(static_cast<size_t>(1)));
EXPECT_TRUE(collection.HasName("alice"));
EXPECT_THAT(collection.name(collection.index("alice")), Eq("alice"));
}
TEST(NamesCollectionTest, AddBobDoesNotChangeAliceIndex) {
NamesCollection collection(std::vector<std::string>{"alice"});
size_t alice_index = collection.index("alice");
collection.AddIfAbsent("bob");
EXPECT_THAT(collection.size(), Eq(static_cast<size_t>(2)));
EXPECT_THAT(collection.index("alice"), Eq(alice_index));
EXPECT_THAT(collection.index("bob"), Ne(alice_index));
}
TEST(NamesCollectionTest, AddAliceSecondTimeDoesNotChangeIndex) {
NamesCollection collection(std::vector<std::string>{"alice"});
size_t alice_index = collection.index("alice");
EXPECT_THAT(collection.AddIfAbsent("alice"), Eq(alice_index));
EXPECT_THAT(collection.size(), Eq(static_cast<size_t>(1)));
EXPECT_THAT(collection.index("alice"), Eq(alice_index));
}
TEST(NamesCollectionTest, RemoveRemovesFromCollectionButNotIndex) {
NamesCollection collection(std::vector<std::string>{"alice", "bob"});
size_t bob_index = collection.index("bob");
EXPECT_THAT(collection.size(), Eq(static_cast<size_t>(2)));
EXPECT_THAT(collection.RemoveIfPresent("bob"),
Eq(std::optional<size_t>(bob_index)));
EXPECT_THAT(collection.size(), Eq(static_cast<size_t>(1)));
EXPECT_FALSE(collection.HasName("bob"));
EXPECT_THAT(collection.index("bob"), Eq(bob_index));
EXPECT_THAT(collection.name(bob_index), Eq("bob"));
}
TEST(NamesCollectionTest, RemoveOfAliceDoesNotChangeBobIndex) {
NamesCollection collection(std::vector<std::string>{"alice", "bob"});
size_t alice_index = collection.index("alice");
size_t bob_index = collection.index("bob");
EXPECT_THAT(collection.size(), Eq(static_cast<size_t>(2)));
EXPECT_THAT(collection.RemoveIfPresent("alice"),
Eq(std::optional<size_t>(alice_index)));
EXPECT_THAT(collection.size(), Eq(static_cast<size_t>(1)));
EXPECT_THAT(collection.index("bob"), Eq(bob_index));
EXPECT_THAT(collection.name(bob_index), Eq("bob"));
}
TEST(NamesCollectionTest, RemoveSecondTimeHasNoEffect) {
NamesCollection collection(std::vector<std::string>{"bob"});
size_t bob_index = collection.index("bob");
EXPECT_THAT(collection.size(), Eq(static_cast<size_t>(1)));
EXPECT_THAT(collection.RemoveIfPresent("bob"),
Eq(std::optional<size_t>(bob_index)));
EXPECT_THAT(collection.size(), Eq(static_cast<size_t>(0)));
EXPECT_THAT(collection.RemoveIfPresent("bob"), Eq(std::nullopt));
}
TEST(NamesCollectionTest, RemoveOfNotExistingHasNoEffect) {
NamesCollection collection(std::vector<std::string>{"bob"});
EXPECT_THAT(collection.size(), Eq(static_cast<size_t>(1)));
EXPECT_THAT(collection.RemoveIfPresent("alice"), Eq(std::nullopt));
EXPECT_THAT(collection.size(), Eq(static_cast<size_t>(1)));
}
TEST(NamesCollectionTest, AddRemoveAddPreserveTheIndex) {
NamesCollection collection(std::vector<std::string>{});
size_t alice_index = collection.AddIfAbsent("alice");
EXPECT_THAT(collection.size(), Eq(static_cast<size_t>(1)));
EXPECT_THAT(collection.RemoveIfPresent("alice"),
Eq(std::optional<size_t>(alice_index)));
EXPECT_THAT(collection.size(), Eq(static_cast<size_t>(0)));
EXPECT_THAT(collection.AddIfAbsent("alice"), Eq(alice_index));
EXPECT_THAT(collection.index("alice"), Eq(alice_index));
EXPECT_THAT(collection.size(), Eq(static_cast<size_t>(1)));
}
TEST(NamesCollectionTest, GetKnownSizeReturnsForRemovedNames) {
NamesCollection collection(std::vector<std::string>{});
size_t alice_index = collection.AddIfAbsent("alice");
EXPECT_THAT(collection.GetKnownSize(), Eq(static_cast<size_t>(1)));
EXPECT_THAT(collection.RemoveIfPresent("alice"),
Eq(std::optional<size_t>(alice_index)));
EXPECT_THAT(collection.GetKnownSize(), Eq(static_cast<size_t>(1)));
}
} // namespace
} // namespace webrtc