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109 lines
4.3 KiB
C++
109 lines
4.3 KiB
C++
// Copyright (c) 2018-2023, The Monero Project
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//
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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 modification, are
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// 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 list of
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// conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list
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// of conditions and the following disclaimer in the documentation and/or other
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// materials provided with the distribution.
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//
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// 3. Neither the name of the copyright holder nor the names of its contributors may be
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// used to endorse or promote products derived from this software without specific
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// prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#include "gtest/gtest.h"
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#include "common/aligned.h"
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TEST(aligned, large_null) { ASSERT_TRUE(aligned_malloc((size_t)-1, 1) == NULL); }
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TEST(aligned, free_null) { aligned_free(NULL); }
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TEST(aligned, zero) { void *ptr = aligned_malloc(0, 1); ASSERT_TRUE(ptr); aligned_free(ptr); }
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TEST(aligned, aligned1) { void *ptr = aligned_malloc(1, 1); ASSERT_TRUE(ptr); aligned_free(ptr); }
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TEST(aligned, aligned4096) { void *ptr = aligned_malloc(1, 4096); ASSERT_TRUE(ptr && ((uintptr_t)ptr & 4095) == 0); aligned_free(ptr); }
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TEST(aligned, aligned8) { void *ptr = aligned_malloc(1, 8); ASSERT_TRUE(ptr && ((uintptr_t)ptr & 7) == 0); aligned_free(ptr); }
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TEST(aligned, realloc_null) { void *ptr = aligned_realloc(NULL, 1, 4096); ASSERT_TRUE(ptr && ((uintptr_t)ptr & 4095) == 0); aligned_free(ptr); }
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TEST(aligned, realloc_diff_align) { void *ptr = aligned_malloc(1, 4096); ASSERT_TRUE(!aligned_realloc(ptr, 1, 2048)); aligned_free(ptr); }
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TEST(aligned, realloc_same) { void *ptr = aligned_malloc(1, 4096), *ptr2 = aligned_realloc(ptr, 1, 4096); ASSERT_TRUE(ptr == ptr2); aligned_free(ptr2); }
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TEST(aligned, realloc_larger) { void *ptr = aligned_malloc(1, 4096), *ptr2 = aligned_realloc(ptr, 2, 4096); ASSERT_TRUE(ptr != ptr2); aligned_free(ptr2); }
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TEST(aligned, realloc_zero) { void *ptr = aligned_malloc(1, 4096), *ptr2 = aligned_realloc(ptr, 0, 4096); ASSERT_TRUE(ptr && !ptr2); }
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TEST(aligned, contents_larger)
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{
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unsigned char *ptr = (unsigned char*)aligned_malloc(50, 256);
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ASSERT_TRUE(ptr);
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for (int n = 0; n < 50; ++n)
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ptr[n] = n;
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unsigned char *ptr2 = (unsigned char*)aligned_realloc(ptr, 51, 256);
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for (int n = 0; n < 50; ++n)
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{
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ASSERT_TRUE(ptr2[n] == n);
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}
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aligned_free(ptr2);
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}
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TEST(aligned, contents_same)
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{
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unsigned char *ptr = (unsigned char*)aligned_malloc(50, 256);
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ASSERT_TRUE(ptr);
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for (int n = 0; n < 50; ++n)
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ptr[n] = n;
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unsigned char *ptr2 = (unsigned char*)aligned_realloc(ptr, 50, 256);
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for (int n = 0; n < 50; ++n)
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{
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ASSERT_TRUE(ptr2[n] == n);
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}
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aligned_free(ptr2);
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}
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TEST(aligned, contents_smaller)
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{
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unsigned char *ptr = (unsigned char*)aligned_malloc(50, 256);
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ASSERT_TRUE(ptr);
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for (int n = 0; n < 50; ++n)
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ptr[n] = n;
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unsigned char *ptr2 = (unsigned char*)aligned_realloc(ptr, 49, 256);
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for (int n = 0; n < 49; ++n)
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{
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ASSERT_TRUE(ptr2[n] == n);
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}
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aligned_free(ptr2);
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}
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TEST(aligned, alignment)
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{
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static const size_t good_alignments[] = {1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192};
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for (size_t a = 0; a <= 8192; ++a)
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{
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bool good = false;
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for (const auto t: good_alignments) if (a == t) good = true;
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void *ptr = aligned_malloc(1, a);
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if (good)
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{
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ASSERT_TRUE(ptr != NULL);
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aligned_free(ptr);
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}
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else
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{
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ASSERT_TRUE(ptr == NULL);
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}
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}
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ASSERT_TRUE(aligned_malloc(1, ~0) == NULL);
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}
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