blob: 46add4390e9d02d76436772787780ccc38272432 [file] [log] [blame]
// Copyright 2024 The PDFium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <stdint.h>
#include "core/fxcrt/span.h"
#include "core/fxcrt/zip.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
using ::testing::ElementsAreArray;
namespace fxcrt {
TEST(Zip, EmptyZip) {
pdfium::span<const int> nothing;
int stuff[] = {1, 2, 3};
auto zip_nothing_nothing = Zip(nothing, nothing);
EXPECT_EQ(zip_nothing_nothing.begin(), zip_nothing_nothing.end());
auto zip_nothing_stuff = Zip(nothing, stuff);
EXPECT_EQ(zip_nothing_stuff.begin(), zip_nothing_stuff.end());
auto zip_nothing_nothing_nothing = Zip(nothing, nothing, nothing);
EXPECT_EQ(zip_nothing_nothing_nothing.begin(),
zip_nothing_nothing_nothing.end());
auto zip_nothing_nothing_stuff = Zip(nothing, nothing, stuff);
EXPECT_EQ(zip_nothing_nothing_stuff.begin(), zip_nothing_nothing_stuff.end());
auto zip_nothing_stuff_stuff = Zip(nothing, stuff, stuff);
EXPECT_EQ(zip_nothing_stuff_stuff.begin(), zip_nothing_stuff_stuff.end());
}
TEST(Zip, ActualZip) {
const int stuff[] = {1, 2, 3};
const int expected[] = {1, 2, 3, 0};
int output[4] = {};
for (auto [in, out] : Zip(stuff, output)) {
out = in;
}
EXPECT_THAT(output, ElementsAreArray(expected));
}
TEST(Zip, ActualZip3) {
const int stuff1[] = {1, 2, 3};
const int stuff2[] = {4, 5, 6};
const int expected[] = {5, 7, 9, 0};
int output[4] = {};
for (auto [in1, in2, out] : Zip(stuff1, stuff2, output)) {
out = in1 + in2;
}
EXPECT_THAT(output, ElementsAreArray(expected));
}
TEST(Zip, BadArgumentsZip) {
pdfium::span<const int> nothing;
int stuff[] = {1, 2, 3};
EXPECT_DEATH(Zip(stuff, nothing), ".*");
}
TEST(Zip, BadArgumentsZip3) {
pdfium::span<const int> nothing;
int stuff[] = {1, 2, 3};
EXPECT_DEATH(Zip(stuff, stuff, nothing), ".*");
}
} // namespace fxcrt