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144 lines
4.8 KiB
144 lines
4.8 KiB
/*
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Copyright (c) 2014, 2017, 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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// First include (the generated) my_config.h, to get correct platform defines.
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#include "my_config.h"
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#include <gtest/gtest.h>
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#include <sys/types.h>
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#include "sql/key.h" // KEY
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#include "unittest/gunit/fake_key.h" // Fake_KEY
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namespace recperkey_unittest {
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/**
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Test the API for setting and getting records per key values.
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*/
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TEST(RecPerKeyTest, RecPerKeyAPI) {
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const uint key_parts = 3;
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Fake_KEY key(key_parts, false);
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/*
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Test that the rec_per_key values are default/unknown.
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*/
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for (uint kp = 0; kp < key_parts; kp++) {
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EXPECT_FALSE(key.has_records_per_key(kp));
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EXPECT_EQ(key.records_per_key(kp), REC_PER_KEY_UNKNOWN);
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}
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/*
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Test setting the values using the API
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*/
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// Give one of the key parts a value
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key.set_records_per_key(1, 2.0);
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// Validate that only one of the key parts has gotten a value
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EXPECT_FALSE(key.has_records_per_key(0));
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EXPECT_TRUE(key.has_records_per_key(1));
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EXPECT_FALSE(key.has_records_per_key(2));
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EXPECT_EQ(key.records_per_key(0), REC_PER_KEY_UNKNOWN);
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EXPECT_EQ(key.records_per_key(1), 2.0);
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EXPECT_EQ(key.records_per_key(2), REC_PER_KEY_UNKNOWN);
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// Reset the rec_per_key value to default/unkown
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key.set_records_per_key(1, REC_PER_KEY_UNKNOWN);
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EXPECT_FALSE(key.has_records_per_key(1));
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EXPECT_EQ(key.records_per_key(1), REC_PER_KEY_UNKNOWN);
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}
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/**
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Test the old integer based rec_per_key implementation used
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together with the records per key API.
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*/
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TEST(RecPerKeyTest, RecPerKey) {
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const uint key_parts = 3;
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Fake_KEY key(key_parts, false);
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// Set values directly in the integer based rec_per_key array
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key.rec_per_key[0] = 0; // default/unknown value
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key.rec_per_key[1] = 1;
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key.rec_per_key[2] = 2;
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// Validate that this produces correct values using the API functions
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EXPECT_FALSE(key.has_records_per_key(0));
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EXPECT_EQ(key.records_per_key(0), REC_PER_KEY_UNKNOWN);
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EXPECT_TRUE(key.has_records_per_key(1));
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EXPECT_EQ(key.records_per_key(1), 1.0);
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EXPECT_TRUE(key.has_records_per_key(2));
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EXPECT_EQ(key.records_per_key(2), 2.0);
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// Reset the values
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key.rec_per_key[1] = 0;
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key.rec_per_key[2] = 0;
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EXPECT_FALSE(key.has_records_per_key(0));
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EXPECT_EQ(key.records_per_key(0), REC_PER_KEY_UNKNOWN);
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EXPECT_FALSE(key.has_records_per_key(1));
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EXPECT_EQ(key.records_per_key(1), REC_PER_KEY_UNKNOWN);
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EXPECT_FALSE(key.has_records_per_key(2));
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EXPECT_EQ(key.records_per_key(2), REC_PER_KEY_UNKNOWN);
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/*
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Test that if both integer and float rec_per_key values are set,
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the float values will be used.
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*/
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// Give a value using the integer based rec_per_key
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key.rec_per_key[1] = 1;
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EXPECT_TRUE(key.has_records_per_key(1));
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EXPECT_EQ(key.records_per_key(1), 1.0);
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// Update the value using the API
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key.set_records_per_key(1, 2.0);
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EXPECT_TRUE(key.has_records_per_key(1));
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EXPECT_EQ(key.records_per_key(1), 2.0);
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// Set the value back to default/unknown
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key.set_records_per_key(1, REC_PER_KEY_UNKNOWN);
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/*
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This result might not be intuitive but when we set the value using
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the API, only the float value will be updated. When the float value
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is set to default/unknown, the integer value will be used instead.
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In pratice this is not an issue, but can be solved by setting
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the integer value to 0, when setting the float value.
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*/
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EXPECT_TRUE(key.has_records_per_key(1));
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EXPECT_EQ(key.records_per_key(1), 1.0);
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/*
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Verify that we get default/unknown when also setting the integer
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value to the default/unknown value.
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*/
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key.rec_per_key[1] = 0;
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EXPECT_FALSE(key.has_records_per_key(1));
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EXPECT_EQ(key.records_per_key(1), REC_PER_KEY_UNKNOWN);
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}
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} // namespace recperkey_unittest
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