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172 lines
5.6 KiB
172 lines
5.6 KiB
/* Copyright (c) 2011, 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 "sql/handler.h"
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namespace cost_estimate_unittest {
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TEST(CostEstimateTest, Basics) {
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Cost_estimate ce1;
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EXPECT_EQ(0, ce1.total_cost());
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EXPECT_TRUE(ce1.is_zero());
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const double initial_io_cost = 4.5;
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ce1.add_io(initial_io_cost);
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EXPECT_FALSE(ce1.is_zero());
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EXPECT_DOUBLE_EQ(initial_io_cost, ce1.total_cost());
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const double initial_cpu_cost = 3.3;
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ce1.add_cpu(initial_cpu_cost);
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EXPECT_DOUBLE_EQ(initial_cpu_cost, ce1.get_cpu_cost());
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EXPECT_DOUBLE_EQ(initial_io_cost, ce1.get_io_cost());
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EXPECT_DOUBLE_EQ(initial_io_cost + initial_cpu_cost, ce1.total_cost());
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EXPECT_EQ(0, ce1.get_mem_cost());
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EXPECT_EQ(0, ce1.get_import_cost());
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const double initial_mem_cost = 7;
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const double initial_import_cost = 11;
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ce1.add_mem(initial_mem_cost);
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ce1.add_import(initial_import_cost);
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const double total_initial_cost =
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initial_io_cost + initial_cpu_cost + initial_import_cost;
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EXPECT_DOUBLE_EQ(total_initial_cost, ce1.total_cost());
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const double added_io_cost = 1.5;
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ce1.add_io(added_io_cost);
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EXPECT_DOUBLE_EQ(initial_io_cost + added_io_cost, ce1.get_io_cost());
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EXPECT_DOUBLE_EQ(total_initial_cost + added_io_cost, ce1.total_cost());
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EXPECT_FALSE(ce1.is_zero());
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ce1.reset();
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EXPECT_TRUE(ce1.is_zero());
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}
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TEST(CostEstimateTest, Operators) {
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Cost_estimate ce_io;
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EXPECT_EQ(0, ce_io.total_cost());
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EXPECT_TRUE(ce_io.is_zero());
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const double initial_io_cost = 4.5;
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ce_io.add_io(initial_io_cost);
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EXPECT_DOUBLE_EQ(initial_io_cost, ce_io.total_cost());
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Cost_estimate ce_cpu;
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const double initial_cpu_cost = 3.3;
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ce_cpu.add_cpu(initial_cpu_cost);
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EXPECT_DOUBLE_EQ(initial_cpu_cost, ce_cpu.total_cost());
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EXPECT_EQ(0, ce_cpu.get_io_cost());
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// Copy CTOR
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Cost_estimate ce_copy(ce_io);
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const double added_io_cost = 1.5;
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ce_io.add_io(added_io_cost); // should not add to ce_copy
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EXPECT_DOUBLE_EQ(initial_io_cost + added_io_cost, ce_io.total_cost());
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EXPECT_DOUBLE_EQ(initial_io_cost, ce_copy.total_cost());
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// operator+=
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ce_copy += ce_cpu;
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EXPECT_DOUBLE_EQ(initial_io_cost + initial_cpu_cost, ce_copy.total_cost());
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// operator+
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Cost_estimate ce_copy2 = ce_io + ce_cpu;
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const double copy2_totcost =
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initial_io_cost + added_io_cost + initial_cpu_cost;
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EXPECT_DOUBLE_EQ(copy2_totcost, ce_copy2.total_cost());
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Cost_estimate ce_mem_import1;
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const double import1_mem_cost = 3;
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const double import1_import_cost = 5;
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ce_mem_import1.add_mem(import1_mem_cost);
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ce_mem_import1.add_import(import1_import_cost);
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Cost_estimate ce_mem_import2;
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const double import2_mem_cost = 11;
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const double import2_import_cost = 13;
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ce_mem_import2.add_mem(import2_mem_cost);
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ce_mem_import2.add_import(import2_import_cost);
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// operator+
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Cost_estimate ce_mi_copy = ce_mem_import1 + ce_mem_import2;
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EXPECT_DOUBLE_EQ(import1_import_cost + import2_import_cost,
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ce_mi_copy.total_cost());
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EXPECT_DOUBLE_EQ(import1_mem_cost + import2_mem_cost,
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ce_mi_copy.get_mem_cost());
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EXPECT_DOUBLE_EQ(import1_import_cost + import2_import_cost,
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ce_mi_copy.get_import_cost());
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// operator+=
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ce_mi_copy += ce_mem_import1;
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EXPECT_DOUBLE_EQ(2 * import1_import_cost + import2_import_cost,
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ce_mi_copy.total_cost());
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EXPECT_DOUBLE_EQ(2 * import1_mem_cost + import2_mem_cost,
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ce_mi_copy.get_mem_cost());
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EXPECT_DOUBLE_EQ(2 * import1_import_cost + import2_import_cost,
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ce_mi_copy.get_import_cost());
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// operator-
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ce_mi_copy = ce_mem_import1 - ce_mem_import2;
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EXPECT_DOUBLE_EQ(
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ce_mi_copy.get_mem_cost(),
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ce_mem_import1.get_mem_cost() - ce_mem_import2.get_mem_cost());
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EXPECT_DOUBLE_EQ(
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ce_mi_copy.get_import_cost(),
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ce_mem_import1.get_import_cost() - ce_mem_import2.get_import_cost());
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// copy assignment
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Cost_estimate ce_copy3;
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ce_copy3 = ce_copy2;
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EXPECT_DOUBLE_EQ(copy2_totcost, ce_copy3.total_cost());
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}
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TEST(CostEstimateTest, MaxValue) {
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Cost_estimate ce;
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Cost_estimate ce2;
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EXPECT_FALSE(ce.is_max_cost());
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ce.set_max_cost();
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EXPECT_TRUE(ce.is_max_cost());
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EXPECT_TRUE(ce > ce2);
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EXPECT_FALSE(ce < ce2);
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EXPECT_FALSE(ce2 > ce);
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EXPECT_TRUE(ce2 < ce);
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ce2 = ce;
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EXPECT_TRUE(ce2.is_max_cost());
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EXPECT_FALSE(ce < ce2);
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EXPECT_FALSE(ce2 > ce);
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}
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} // namespace cost_estimate_unittest
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