| // Copyright 2020 The PDFium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "fpdfsdk/cpdfsdk_helpers.h" |
| |
| #include "core/fxcrt/compiler_specific.h" |
| #include "core/fxcrt/fx_memcpy_wrappers.h" |
| #include "core/fxcrt/stl_util.h" |
| #include "testing/gmock/include/gmock/gmock.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| using ::testing::ElementsAre; |
| using ::testing::IsEmpty; |
| |
| TEST(CPDFSDK_HelpersTest, NulTerminateMaybeCopyAndReturnLength) { |
| { |
| const ByteString to_be_copied("toBeCopied"); |
| constexpr size_t kExpectedToBeCopiedLen = 10; |
| ASSERT_EQ(kExpectedToBeCopiedLen, to_be_copied.GetLength()); |
| EXPECT_EQ(kExpectedToBeCopiedLen + 1, |
| NulTerminateMaybeCopyAndReturnLength(to_be_copied, |
| pdfium::span<char>())); |
| |
| // Buffer should not change if declared length is too short. |
| char buf[kExpectedToBeCopiedLen + 1]; |
| fxcrt::Fill(buf, 0x42); |
| ASSERT_EQ(kExpectedToBeCopiedLen + 1, |
| NulTerminateMaybeCopyAndReturnLength( |
| to_be_copied, |
| pdfium::make_span(buf).first(kExpectedToBeCopiedLen))); |
| for (char c : buf) |
| EXPECT_EQ(0x42, c); |
| |
| // Buffer should copy over if long enough. |
| ASSERT_EQ(kExpectedToBeCopiedLen + 1, |
| NulTerminateMaybeCopyAndReturnLength(to_be_copied, |
| pdfium::make_span(buf))); |
| EXPECT_EQ(to_be_copied, ByteString(buf)); |
| } |
| { |
| // Empty ByteString should still copy NUL terminator. |
| const ByteString empty; |
| char buf[1]; |
| ASSERT_EQ(1u, NulTerminateMaybeCopyAndReturnLength(empty, |
| pdfium::make_span(buf))); |
| EXPECT_EQ(empty, ByteString(buf)); |
| } |
| } |
| |
| TEST(CPDFSDK_HelpersTest, ParsePageRangeString) { |
| EXPECT_THAT(ParsePageRangeString("", 1), IsEmpty()); |
| EXPECT_THAT(ParsePageRangeString(" ", 1), IsEmpty()); |
| EXPECT_THAT(ParsePageRangeString("clams", 1), IsEmpty()); |
| EXPECT_THAT(ParsePageRangeString("0", 0), IsEmpty()); |
| EXPECT_THAT(ParsePageRangeString("1", 0), IsEmpty()); |
| EXPECT_THAT(ParsePageRangeString(",1", 10), IsEmpty()); |
| EXPECT_THAT(ParsePageRangeString("1,", 10), IsEmpty()); |
| EXPECT_THAT(ParsePageRangeString("1,clams", 1), IsEmpty()); |
| EXPECT_THAT(ParsePageRangeString("clams,1", 1), IsEmpty()); |
| EXPECT_THAT(ParsePageRangeString("0-1", 10), IsEmpty()); |
| EXPECT_THAT(ParsePageRangeString("1-0", 10), IsEmpty()); |
| EXPECT_THAT(ParsePageRangeString("1-5", 4), IsEmpty()); |
| EXPECT_THAT(ParsePageRangeString("1-11,", 10), IsEmpty()); |
| EXPECT_THAT(ParsePageRangeString(",1-1", 10), IsEmpty()); |
| EXPECT_THAT(ParsePageRangeString("1-", 10), IsEmpty()); |
| EXPECT_THAT(ParsePageRangeString("1-,", 10), IsEmpty()); |
| EXPECT_THAT(ParsePageRangeString("-2,", 10), IsEmpty()); |
| EXPECT_THAT(ParsePageRangeString("1-clams", 10), IsEmpty()); |
| EXPECT_THAT(ParsePageRangeString("clams-1,", 10), IsEmpty()); |
| EXPECT_THAT(ParsePageRangeString("1-2clams", 10), IsEmpty()); |
| EXPECT_THAT(ParsePageRangeString("0,1", 10), IsEmpty()); |
| EXPECT_THAT(ParsePageRangeString("1,0", 10), IsEmpty()); |
| EXPECT_THAT(ParsePageRangeString("1-2,,,,3-4", 10), IsEmpty()); |
| EXPECT_THAT(ParsePageRangeString("1-2-", 10), IsEmpty()); |
| |
| EXPECT_THAT(ParsePageRangeString("1-1", 10), ElementsAre(0)); |
| EXPECT_THAT(ParsePageRangeString("1", 1), ElementsAre(0)); |
| EXPECT_THAT(ParsePageRangeString("1-4", 4), ElementsAre(0, 1, 2, 3)); |
| EXPECT_THAT(ParsePageRangeString("1- 4", 4), ElementsAre(0, 1, 2, 3)); |
| EXPECT_THAT(ParsePageRangeString("1 -4", 4), ElementsAre(0, 1, 2, 3)); |
| EXPECT_THAT(ParsePageRangeString("1,2", 10), ElementsAre(0, 1)); |
| EXPECT_THAT(ParsePageRangeString("2,1", 10), ElementsAre(1, 0)); |
| EXPECT_THAT(ParsePageRangeString("1,50,2", 100), ElementsAre(0, 49, 1)); |
| EXPECT_THAT(ParsePageRangeString("1-4,50", 100), ElementsAre(0, 1, 2, 3, 49)); |
| EXPECT_THAT(ParsePageRangeString("50,1-2", 100), ElementsAre(49, 0, 1)); |
| EXPECT_THAT(ParsePageRangeString("5 0, 1-2 ", 100), |
| ElementsAre(49, 0, 1)); // ??? |
| EXPECT_THAT(ParsePageRangeString("1-3,4-6", 10), |
| ElementsAre(0, 1, 2, 3, 4, 5)); |
| EXPECT_THAT(ParsePageRangeString("1-4,3-6", 10), |
| ElementsAre(0, 1, 2, 3, 2, 3, 4, 5)); |
| } |