ce90cceb25
This change adds the plumbing for and then implements a unit test for the "sum" command. Despite the fact that this command is very simple, there are a few things to verify. 1. That args are passed in the right positions. 2. That the number of arguments is checked correctly. 3. That the output to std::cerr is correct. Change-Id: I71cd473b78fb710cac94df2d70c8d6dc76e5a037 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/27566 Reviewed-by: Jason Lowe-Power <power.jg@gmail.com> Maintainer: Jason Lowe-Power <power.jg@gmail.com> Tested-by: kokoro <noreply+kokoro@google.com>
107 lines
3.1 KiB
C++
107 lines
3.1 KiB
C++
/*
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* Copyright 2020 Google Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <gtest/gtest.h>
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#include <sstream>
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#include "args.hh"
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#include "command.hh"
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#include "dispatch_table.hh"
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unsigned test_a, test_b, test_c, test_d, test_e, test_f;
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unsigned test_result;
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unsigned
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test_m5_sum(unsigned a, unsigned b, unsigned c,
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unsigned d, unsigned e, unsigned f)
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{
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test_a = a;
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test_b = b;
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test_c = c;
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test_d = d;
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test_e = e;
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test_f = f;
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return test_result;
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}
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void
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check_args(unsigned a, unsigned b, unsigned c,
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unsigned d, unsigned e, unsigned f)
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{
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EXPECT_EQ(test_a, a);
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EXPECT_EQ(test_b, b);
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EXPECT_EQ(test_c, c);
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EXPECT_EQ(test_d, d);
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EXPECT_EQ(test_e, e);
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EXPECT_EQ(test_f, f);
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}
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DispatchTable dt = { .m5_sum = &test_m5_sum };
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std::string cout_output;
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bool
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run(std::initializer_list<std::string> arg_args)
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{
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Args args(arg_args);
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// Redirect cout into a stringstream.
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std::stringstream buffer;
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std::streambuf *orig = std::cout.rdbuf(buffer.rdbuf());
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bool res = Command::run(dt, args);
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// Capture the contents of the stringstream and restore cout.
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cout_output = buffer.str();
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std::cout.rdbuf(orig);
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return res;
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}
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TEST(Sum, Arguments)
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{
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// Called with no arguments.
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EXPECT_FALSE(run({"sum"}));
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// Called with one argument.
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EXPECT_FALSE(run({"sum", "1"}));
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// Called with two arguments.
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test_result = 42;
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EXPECT_TRUE(run({"sum", "1", "2"}));
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check_args(1, 2, 0, 0, 0, 0);
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EXPECT_EQ(cout_output, "Sum is 42.\n");
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// Call with all arguments.
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test_result = 314159;
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EXPECT_TRUE(run({"sum", "6", "5", "4", "3", "2", "1"}));
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check_args(6, 5, 4, 3, 2, 1);
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EXPECT_EQ(cout_output, "Sum is 314159.\n");
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}
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