8e5dabfa8e
* slice: fix memory semantics * slice: prefer passing slice by value This lets us do nice things like coercing Slice<T> to Slice<const T>, etc. * slice: fix unit tests * slice: fix copy/assignment, hash function Don't attempt to define a copy constructor/assignment operator which would convert a constant type to a mutable type. Additionally, fix the hash function such that we're hashing U instead of const U.
84 lines
2.6 KiB
C++
84 lines
2.6 KiB
C++
/*
|
|
* Copyright (C) 2025 The Android Open Source Project
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#include <gtest/gtest.h>
|
|
|
|
#include <utils/Slice.h>
|
|
#include <utils/FixedCapacityVector.h>
|
|
|
|
using namespace utils;
|
|
|
|
TEST(SliceTest, HashIsEqual) {
|
|
FixedCapacityVector<int> vec1 = {1, 3, 3, 7};
|
|
FixedCapacityVector<int> vec2 = {1, 3, 3, 7};
|
|
Slice<const int> slice1 = vec1.as_slice();
|
|
Slice<const int> slice2 = vec2.as_slice();
|
|
|
|
EXPECT_TRUE(slice1.hash() == vec1.hash());
|
|
EXPECT_TRUE(slice1.hash() == slice2.hash());
|
|
}
|
|
|
|
TEST(SliceTest, HashIsNotEqual) {
|
|
FixedCapacityVector<int> vec1 = {1, 3, 3, 7};
|
|
FixedCapacityVector<int> vec2 = {4, 2, 0};
|
|
Slice<const int> slice1 = vec1.as_slice();
|
|
Slice<const int> slice2 = vec2.as_slice();
|
|
|
|
EXPECT_FALSE(slice1.hash() == slice2.hash());
|
|
}
|
|
|
|
TEST(SliceTest, ValueEqual) {
|
|
FixedCapacityVector<int> vec1 = {1, 3, 3, 7};
|
|
FixedCapacityVector<int> vec2 = {1, 3, 3, 7};
|
|
Slice<const int> slice1 = vec1.as_slice();
|
|
Slice<const int> slice2 = vec2.as_slice();
|
|
|
|
EXPECT_TRUE(slice1 == slice2);
|
|
}
|
|
|
|
TEST(SliceTest, ValueNotEqual) {
|
|
FixedCapacityVector<int> vec1 = {1, 3, 3, 7};
|
|
FixedCapacityVector<int> vec2 = {4, 2, 0};
|
|
Slice<const int> slice1 = vec1.as_slice();
|
|
Slice<const int> slice2 = vec2.as_slice();
|
|
|
|
EXPECT_FALSE(slice1 == slice2);
|
|
}
|
|
|
|
TEST(SliceTest, CanCoerceMutableToConst) {
|
|
FixedCapacityVector<int> vec = {1, 3, 3, 7};
|
|
Slice<int> sliceMutable = vec.as_slice();
|
|
Slice<const int> sliceConst = sliceMutable;
|
|
}
|
|
|
|
TEST(SliceTest, CanCompareMutableWithConst) {
|
|
FixedCapacityVector<int> vec1 = {1, 3, 3, 7};
|
|
FixedCapacityVector<int> vec2 = {1, 3, 3, 7};
|
|
Slice<int> slice1 = vec1.as_slice();
|
|
Slice<const int> slice2 = vec2.as_slice();
|
|
|
|
EXPECT_TRUE(slice1.hash() == slice2.hash());
|
|
}
|
|
|
|
TEST(SliceTest, CanCompareConstWithMutable) {
|
|
FixedCapacityVector<int> vec1 = {1, 3, 3, 7};
|
|
FixedCapacityVector<int> vec2 = {1, 3, 3, 7};
|
|
Slice<const int> slice1 = vec1.as_slice();
|
|
Slice<int> slice2 = vec2.as_slice();
|
|
|
|
EXPECT_TRUE(slice1.hash() == slice2.hash());
|
|
}
|