77 lines
		
	
	
		
			2.1 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			77 lines
		
	
	
		
			2.1 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| // Copyright (C) 2011 Red Hat, Inc. All rights reserved.
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| //
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| // This file is part of the thin-provisioning-tools source.
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| //
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| // thin-provisioning-tools is free software: you can redistribute it
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| // and/or modify it under the terms of the GNU General Public License
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| // as published by the Free Software Foundation, either version 3 of
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| // the License, or (at your option) any later version.
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| //
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| // thin-provisioning-tools is distributed in the hope that it will be
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| // useful, but WITHOUT ANY WARRANTY; without even the implied warranty
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| // of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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| // GNU General Public License for more details.
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| //
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| // You should have received a copy of the GNU General Public License along
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| // with thin-provisioning-tools.  If not, see
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| // <http://www.gnu.org/licenses/>.
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| 
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| #include "gmock/gmock.h"
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| #include "base/endian_utils.h"
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| 
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| using namespace base;
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| using namespace std;
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| using namespace testing;
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| 
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| //----------------------------------------------------------------
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| 
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| TEST(EndianTests, bitmaps)
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| {
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| 	unsigned NR_BITS = 10247;
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| 	vector<uint64_t> data((NR_BITS + 63) / 64, 0);
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| 
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| 	// check all bits are zero
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| 	void *bits = &data[0];
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| 	for (unsigned i = 0; i < NR_BITS; i++)
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| 		ASSERT_FALSE(test_bit_le(bits, i));
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| 
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| 	// set all bits to one
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| 	for (unsigned i = 0; i < NR_BITS; i++)
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| 		set_bit_le(bits, i);
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| 
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| 	// check they're all 1 now
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| 	for (unsigned i = 0; i < NR_BITS; i++)
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| 		ASSERT_TRUE(test_bit_le(bits, i));
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| 
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| 	// clear every third bit
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| 	for (unsigned i = 0; i < NR_BITS; i += 3)
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| 		clear_bit_le(bits, i);
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| 
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| 	// check everything is as we expect
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| 	for (unsigned i = 0; i < NR_BITS; i++) {
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| 		if ((i % 3) == 0)
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| 			ASSERT_FALSE(test_bit_le(bits, i));
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| 		else
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| 			ASSERT_TRUE(test_bit_le(bits, i));
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| 	}
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| }
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| 
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| TEST(EndianTests, bitmaps_alternate_words)
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| {
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| 	unsigned NR_BITS = 10247;
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| 	vector<uint64_t> data((NR_BITS + 63) / 64, 0);
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| 
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| 	// check all bits are zero
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| 	void *bits = &data[0];
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| 	for (unsigned i = 0; i < 128; i++)
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| 		ASSERT_FALSE(test_bit_le(bits, i));
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| 
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| 	for (unsigned i = 0; i < 64; i++)
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| 		set_bit_le(bits, i);
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| 
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| 	for (unsigned i = 64; i < 128; i++)
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| 		ASSERT_FALSE(test_bit_le(bits, i));
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| }
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| 
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| //----------------------------------------------------------------
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