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R9484/googletest/test/gtest_test_macro_stack_footprint_test.cc
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gtest_test_macro_stack_footprint_test.cc
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// Copyright 2013, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Each TEST() expands to some static registration logic. GCC puts all
// such static initialization logic for a translation unit in a common,
// internal function. Since Google's build system restricts how much
// stack space a function can use, there's a limit on how many TEST()s
// one can put in a single C++ test file. This test ensures that a large
// number of TEST()s can be defined in the same translation unit.
#include "gtest/gtest.h"
// This macro defines 10 dummy tests.
#define TEN_TESTS_(test_case_name) \
TEST(test_case_name, T0) {} \
TEST(test_case_name, T1) {} \
TEST(test_case_name, T2) {} \
TEST(test_case_name, T3) {} \
TEST(test_case_name, T4) {} \
TEST(test_case_name, T5) {} \
TEST(test_case_name, T6) {} \
TEST(test_case_name, T7) {} \
TEST(test_case_name, T8) {} \
TEST(test_case_name, T9) {}
// This macro defines 100 dummy tests.
#define HUNDRED_TESTS_(test_case_name_prefix) \
TEN_TESTS_(test_case_name_prefix ## 0) \
TEN_TESTS_(test_case_name_prefix ## 1) \
TEN_TESTS_(test_case_name_prefix ## 2) \
TEN_TESTS_(test_case_name_prefix ## 3) \
TEN_TESTS_(test_case_name_prefix ## 4) \
TEN_TESTS_(test_case_name_prefix ## 5) \
TEN_TESTS_(test_case_name_prefix ## 6) \
TEN_TESTS_(test_case_name_prefix ## 7) \
TEN_TESTS_(test_case_name_prefix ## 8) \
TEN_TESTS_(test_case_name_prefix ## 9)
// This macro defines 1000 dummy tests.
#define THOUSAND_TESTS_(test_case_name_prefix) \
HUNDRED_TESTS_(test_case_name_prefix ## 0) \
HUNDRED_TESTS_(test_case_name_prefix ## 1) \
HUNDRED_TESTS_(test_case_name_prefix ## 2) \
HUNDRED_TESTS_(test_case_name_prefix ## 3) \
HUNDRED_TESTS_(test_case_name_prefix ## 4) \
HUNDRED_TESTS_(test_case_name_prefix ## 5) \
HUNDRED_TESTS_(test_case_name_prefix ## 6) \
HUNDRED_TESTS_(test_case_name_prefix ## 7) \
HUNDRED_TESTS_(test_case_name_prefix ## 8) \
HUNDRED_TESTS_(test_case_name_prefix ## 9)
// Ensures that we can define 1000 TEST()s in the same translation
// unit.
THOUSAND_TESTS_(T)
int main(int argc, char **argv) {
testing::InitGoogleTest(&argc, argv);
// We don't actually need to run the dummy tests - the purpose is to
// ensure that they compile.
return 0;
}
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