32 lines
1003 B
C++
32 lines
1003 B
C++
// Copyright 2018 The gVisor Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include <stdint.h>
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#include <sys/syscall.h>
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#include <unistd.h>
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#include "test/util/test_util.h"
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namespace gvisor {
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namespace testing {
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TEST(BrkTest, BrkSyscallReturnsOldBrkOnFailure) {
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auto old_brk = sbrk(0);
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EXPECT_THAT(syscall(SYS_brk, reinterpret_cast<void*>(-1)),
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SyscallSucceedsWithValue(reinterpret_cast<uintptr_t>(old_brk)));
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}
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} // namespace testing
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} // namespace gvisor
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