| // 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 |