mirror of
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111 lines
3.6 KiB
C++
111 lines
3.6 KiB
C++
/*
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* Copyright (c) 2020, the SerenityOS developers.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <AK/TestSuite.h>
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#include <AK/Stream.h>
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static bool compare(ReadonlyBytes lhs, ReadonlyBytes rhs)
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{
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if (lhs.size() != rhs.size())
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return false;
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for (size_t idx = 0; idx < lhs.size(); ++idx) {
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if (lhs[idx] != rhs[idx])
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return false;
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}
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return true;
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}
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TEST_CASE(read_an_integer)
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{
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u32 expected = 0x01020304, actual;
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InputMemoryStream stream { { &expected, sizeof(expected) } };
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stream >> actual;
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EXPECT(!stream.has_error() && stream.eof());
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EXPECT_EQ(expected, actual);
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}
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TEST_CASE(recoverable_error)
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{
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u32 expected = 0x01020304, actual = 0;
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u64 to_large_value = 0;
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InputMemoryStream stream { { &expected, sizeof(expected) } };
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EXPECT(!stream.has_error() && !stream.eof());
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stream >> to_large_value;
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EXPECT(stream.has_error() && !stream.eof());
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EXPECT(stream.handle_error());
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EXPECT(!stream.has_error() && !stream.eof());
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stream >> actual;
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EXPECT(!stream.has_error() && stream.eof());
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EXPECT_EQ(expected, actual);
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}
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TEST_CASE(chain_stream_operator)
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{
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u8 expected[] { 0, 1, 2, 3 }, actual[4];
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InputMemoryStream stream { { expected, sizeof(expected) } };
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stream >> actual[0] >> actual[1] >> actual[2] >> actual[3];
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EXPECT(!stream.has_error() && stream.eof());
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EXPECT(compare({ expected, sizeof(expected) }, { actual, sizeof(actual) }));
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}
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TEST_CASE(seeking_slicing_offset)
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{
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u8 input[] { 0, 1, 2, 3, 4, 5, 6, 7 },
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expected0[] { 0, 1, 2, 3 },
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expected1[] { 4, 5, 6, 7 },
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expected2[] { 1, 2, 3, 4 },
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actual0[4], actual1[4], actual2[4];
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InputMemoryStream stream { { input, sizeof(input) } };
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stream >> Bytes { actual0, sizeof(actual0) };
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EXPECT(!stream.has_error() && !stream.eof());
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EXPECT(compare({ expected0, sizeof(expected0) }, { actual0, sizeof(actual0) }));
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stream.seek(4);
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stream >> Bytes { actual1, sizeof(actual1) };
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EXPECT(!stream.has_error() && stream.eof());
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EXPECT(compare({ expected1, sizeof(expected1) }, { actual1, sizeof(actual1) }));
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stream.seek(1);
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stream >> Bytes { actual2, sizeof(actual2) };
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EXPECT(!stream.has_error() && !stream.eof());
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EXPECT(compare({ expected2, sizeof(expected2) }, { actual2, sizeof(actual2) }));
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}
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TEST_MAIN(Stream)
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