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// Copyright 2022 The Dawn Authors
//
// 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 "dawn/native/ShaderModule.h"
#include "dawn/tests/unittests/validation/ValidationTest.h"
namespace dawn {
namespace {
class CountUTF16CodeUnitsFromUTF8StringTest : public ValidationTest {};
TEST_F(CountUTF16CodeUnitsFromUTF8StringTest, ValidUnicodeString) {
struct TestCase {
const char* u8String;
uint64_t lengthInUTF16;
};
// Referenced from src/tint/utils/text/unicode_test.cc
constexpr std::array<TestCase, 12> kTestCases = {{
{"", 0},
{"abc", 3},
{"\xe4\xbd\xa0\xe5\xa5\xbd\xe4\xb8\x96\xe7\x95\x8c", 4},
{"def\xf0\x9f\x91\x8b\xf0\x9f\x8c\x8e", 7},
{"\xed\x9f\xbf", 1}, // CodePoint == 0xD7FF
{"\xed\x9f\xbe", 1}, // CodePoint == 0xD7FF - 1
{"\xee\x80\x80", 1}, // CodePoint == 0xE000
{"\xee\x80\x81", 1}, // CodePoint == 0xE000 + 1
{"\xef\xbf\xbf", 1}, // CodePoint == 0xFFFF
{"\xef\xbf\xbe", 1}, // CodePoint == 0xFFFF - 1
{"\xf0\x90\x80\x80", 2}, // CodePoint == 0x10000
{"\xf0\x90\x80\x81", 2}, // CodePoint == 0x10000 + 1
}};
for (const TestCase& testCase : kTestCases) {
native::ResultOrError<uint64_t> resultOrError =
native::CountUTF16CodeUnitsFromUTF8String(std::string_view(testCase.u8String));
ASSERT_TRUE(resultOrError.IsSuccess());
ASSERT_EQ(testCase.lengthInUTF16, resultOrError.AcquireSuccess());
}
}
TEST_F(CountUTF16CodeUnitsFromUTF8StringTest, InvalidUnicodeString) {
// Referenced from src/tint/utils/text/unicode_test.cc
constexpr std::array<const char*, 12> kTestCases = {{
"\xed\xa0\x80", // CodePoint == 0xD7FF + 1
"\xed\xbf\xbf", // CodePoint == 0xE000 - 1
"ab\xed\xa0\x80",
"\xd0", // 2-bytes, missing second byte
"\xe8\x8f", // 3-bytes, missing third byte
"\xf4\x8f\x8f", // 4-bytes, missing fourth byte
"\xd0\x7f", // 2-bytes, second byte MSB unset
"\xe8\x7f\x8f", // 3-bytes, second byte MSB unset
"\xe8\x8f\x7f", // 3-bytes, third byte MSB unset
"\xf4\x7f\x8f\x8f", // 4-bytes, second byte MSB unset
"\xf4\x8f\x7f\x8f", // 4-bytes, third byte MSB unset
"\xf4\x8f\x8f\x7f", // 4-bytes, fourth byte MSB unset
}};
for (const char* testCase : kTestCases) {
native::ResultOrError<uint64_t> resultOrError =
native::CountUTF16CodeUnitsFromUTF8String(std::string_view(testCase));
ASSERT_TRUE(resultOrError.IsError());
std::ignore = resultOrError.AcquireError();
}
}
} // anonymous namespace
} // namespace dawn