| 1 | // Copyright 2013 The Flutter Authors. All rights reserved. |
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| 2 | // Use of this source code is governed by a BSD-style license that can be |
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| 3 | // found in the LICENSE file. |
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| 4 | |
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| 5 | #include "testing.h" |
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| 6 | |
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| 7 | #include <utility> |
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| 8 | |
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| 9 | #include "flutter/fml/file.h" |
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| 10 | #include "flutter/fml/paths.h" |
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| 11 | |
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| 12 | namespace flutter { |
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| 13 | namespace testing { |
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| 14 | |
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| 15 | std::string GetCurrentTestName() { |
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| 16 | return ::testing::UnitTest::GetInstance()->current_test_info()->name(); |
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| 17 | } |
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| 18 | |
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| 19 | std::string GetDefaultKernelFilePath() { |
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| 20 | return fml::paths::JoinPaths(components: {GetFixturesPath(), "kernel_blob.bin" }); |
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| 21 | } |
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| 22 | |
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| 23 | fml::UniqueFD OpenFixturesDirectory() { |
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| 24 | auto fixtures_directory = |
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| 25 | OpenDirectory(path: GetFixturesPath(), // path |
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| 26 | create_if_necessary: false, // create |
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| 27 | permission: fml::FilePermission::kRead // permission |
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| 28 | ); |
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| 29 | |
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| 30 | if (!fixtures_directory.is_valid()) { |
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| 31 | FML_LOG(ERROR) << "Could not open fixtures directory." ; |
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| 32 | return {}; |
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| 33 | } |
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| 34 | return fixtures_directory; |
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| 35 | } |
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| 36 | |
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| 37 | fml::UniqueFD OpenFixture(const std::string& fixture_name) { |
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| 38 | if (fixture_name.size() == 0) { |
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| 39 | FML_LOG(ERROR) << "Invalid fixture name." ; |
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| 40 | return {}; |
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| 41 | } |
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| 42 | |
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| 43 | auto fixtures_directory = OpenFixturesDirectory(); |
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| 44 | |
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| 45 | auto fixture_fd = fml::OpenFile(base_directory: fixtures_directory, // base directory |
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| 46 | path: fixture_name.c_str(), // path |
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| 47 | create_if_necessary: false, // create |
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| 48 | permission: fml::FilePermission::kRead // permission |
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| 49 | ); |
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| 50 | if (!fixture_fd.is_valid()) { |
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| 51 | FML_LOG(ERROR) << "Could not open fixture for path: " << GetFixturesPath() |
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| 52 | << "/" << fixture_name << "." ; |
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| 53 | return {}; |
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| 54 | } |
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| 55 | |
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| 56 | return fixture_fd; |
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| 57 | } |
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| 58 | |
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| 59 | std::unique_ptr<fml::Mapping> OpenFixtureAsMapping( |
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| 60 | const std::string& fixture_name) { |
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| 61 | return fml::FileMapping::CreateReadOnly(base_fd: OpenFixture(fixture_name)); |
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| 62 | } |
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| 63 | |
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| 64 | bool MemsetPatternSetOrCheck(uint8_t* buffer, size_t size, MemsetPatternOp op) { |
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| 65 | if (buffer == nullptr) { |
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| 66 | return false; |
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| 67 | } |
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| 68 | |
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| 69 | auto pattern = reinterpret_cast<const uint8_t*>("dErP" ); |
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| 70 | constexpr auto pattern_length = 4; |
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| 71 | |
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| 72 | uint8_t* start = buffer; |
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| 73 | uint8_t* p = buffer; |
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| 74 | |
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| 75 | while ((start + size) - p >= pattern_length) { |
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| 76 | switch (op) { |
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| 77 | case MemsetPatternOp::kMemsetPatternOpSetBuffer: |
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| 78 | memmove(dest: p, src: pattern, n: pattern_length); |
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| 79 | break; |
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| 80 | case MemsetPatternOp::kMemsetPatternOpCheckBuffer: |
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| 81 | if (memcmp(s1: pattern, s2: p, n: pattern_length) != 0) { |
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| 82 | return false; |
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| 83 | } |
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| 84 | break; |
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| 85 | }; |
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| 86 | p += pattern_length; |
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| 87 | } |
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| 88 | |
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| 89 | if ((start + size) - p != 0) { |
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| 90 | switch (op) { |
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| 91 | case MemsetPatternOp::kMemsetPatternOpSetBuffer: |
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| 92 | memmove(dest: p, src: pattern, n: (start + size) - p); |
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| 93 | break; |
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| 94 | case MemsetPatternOp::kMemsetPatternOpCheckBuffer: |
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| 95 | if (memcmp(s1: pattern, s2: p, n: (start + size) - p) != 0) { |
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| 96 | return false; |
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| 97 | } |
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| 98 | break; |
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| 99 | } |
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| 100 | } |
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| 101 | |
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| 102 | return true; |
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| 103 | } |
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| 104 | |
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| 105 | bool MemsetPatternSetOrCheck(std::vector<uint8_t>& buffer, MemsetPatternOp op) { |
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| 106 | return MemsetPatternSetOrCheck(buffer: buffer.data(), size: buffer.size(), op); |
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| 107 | } |
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| 108 | |
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| 109 | } // namespace testing |
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| 110 | } // namespace flutter |
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| 111 | |
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