130 lines
3.7 KiB
C++
130 lines
3.7 KiB
C++
/* Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License, version 2.0,
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as published by the Free Software Foundation.
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This program is also distributed with certain software (including
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but not limited to OpenSSL) that is licensed under separate terms,
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as designated in a particular file or component or in included license
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documentation. The authors of MySQL hereby grant you an additional
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permission to link the program and your derivative works with the
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separately licensed software that they have included with MySQL.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License, version 2.0, for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
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#include "my_config.h"
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#include <errno.h>
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#include <gmock/gmock.h>
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#include <gtest/gtest.h>
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#include <stddef.h>
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#include "my_inttypes.h"
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#include "my_sys.h"
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// Ignore test on windows, as we are mocking away a unix function, see below.
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#ifndef _WIN32
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// For testing my_read.
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extern ssize_t (*mock_read)(int fd, void *buf, size_t count);
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namespace mysys_my_read_unittest {
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using ::testing::_;
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using ::testing::InSequence;
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using ::testing::Return;
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using ::testing::SetErrnoAndReturn;
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class MockRead {
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public:
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virtual ~MockRead() {}
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MOCK_METHOD3(mockread, ssize_t(int, void *, size_t));
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};
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MockRead *mockfs = NULL;
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ssize_t mockfs_read(int fd, void *buf, size_t count) {
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return mockfs->mockread(fd, buf, count);
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}
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class MysysMyReadTest : public ::testing::Test {
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virtual void SetUp() {
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mock_read = mockfs_read;
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mockfs = new MockRead;
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}
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virtual void TearDown() {
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mock_read = nullptr;
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delete mockfs;
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mockfs = NULL;
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}
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};
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// Test of normal case: read OK
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TEST_F(MysysMyReadTest, MyReadOK) {
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uchar buf[4096];
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InSequence s;
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EXPECT_CALL(*mockfs, mockread(_, _, 4096)).Times(1).WillOnce(Return(4096));
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const size_t result = my_read(42, buf, 4096, 0);
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EXPECT_EQ(4096U, result);
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}
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// Test of normal case: read OK with MY_NABP
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TEST_F(MysysMyReadTest, MyReadOKNABP) {
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uchar buf[4096];
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InSequence s;
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EXPECT_CALL(*mockfs, mockread(_, _, 4096)).Times(1).WillOnce(Return(4096));
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const size_t result = my_read(42, buf, 4096, MYF(MY_NABP));
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EXPECT_EQ(0U, result);
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}
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// Test of disk full: read not OK
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TEST_F(MysysMyReadTest, MyReadFail) {
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uchar buf[4096];
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InSequence s;
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EXPECT_CALL(*mockfs, mockread(_, _, 4096))
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.Times(1)
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.WillOnce(SetErrnoAndReturn(ENOSPC, -1));
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const size_t result = my_read(42, buf, 4096, 0);
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EXPECT_EQ(MY_FILE_ERROR, result);
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}
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// Test of disk full: read not OK, with MY_NABP
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TEST_F(MysysMyReadTest, MyReadFailNABP) {
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uchar buf[4096];
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InSequence s;
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EXPECT_CALL(*mockfs, mockread(_, _, 4096))
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.Times(1)
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.WillOnce(SetErrnoAndReturn(ENOSPC, -1));
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const size_t result = my_read(42, buf, 4096, MYF(MY_NABP));
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EXPECT_EQ(MY_FILE_ERROR, result);
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}
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// Test of normal case: read OK, with MY_FULL_IO
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TEST_F(MysysMyReadTest, MyReadOkFULLIO) {
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uchar buf[132096]; // Read 129Kb
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InSequence s;
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EXPECT_CALL(*mockfs, mockread(_, _, 132096))
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.Times(1)
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.WillOnce(Return(132096));
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const size_t result = my_read(42, buf, 132096, MYF(MY_FULL_IO));
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EXPECT_EQ(132096U, result);
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}
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} // namespace mysys_my_read_unittest
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#endif
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