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Diffstat (limited to 'utils/auto_array_test.cpp')
| -rw-r--r-- | utils/auto_array_test.cpp | 312 |
1 files changed, 312 insertions, 0 deletions
diff --git a/utils/auto_array_test.cpp b/utils/auto_array_test.cpp new file mode 100644 index 000000000000..041eb65863ba --- /dev/null +++ b/utils/auto_array_test.cpp @@ -0,0 +1,312 @@ +// Copyright 2010 The Kyua Authors. +// 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. + +#include "utils/auto_array.ipp" + +extern "C" { +#include <sys/types.h> +} + +#include <iostream> + +#include <atf-c++.hpp> + +#include "utils/defs.hpp" + +using utils::auto_array; + + +namespace { + + +/// Mock class to capture calls to the new and delete operators. +class test_array { +public: + /// User-settable cookie to disambiguate instances of this class. + int m_value; + + /// The current balance of existing test_array instances. + static ssize_t m_nblocks; + + /// Captures invalid calls to new on an array. + /// + /// \return Nothing; this always fails the test case. + void* + operator new(const size_t /* size */) + { + ATF_FAIL("New called but should have been new[]"); + return new int(5); + } + + /// Obtains memory for a new instance and increments m_nblocks. + /// + /// \param size The amount of memory to allocate, in bytes. + /// + /// \return A pointer to the allocated memory. + /// + /// \throw std::bad_alloc If the memory cannot be allocated. + void* + operator new[](const size_t size) + { + void* mem = ::operator new(size); + m_nblocks++; + std::cout << "Allocated 'test_array' object " << mem << "\n"; + return mem; + } + + /// Captures invalid calls to delete on an array. + /// + /// \return Nothing; this always fails the test case. + void + operator delete(void* /* mem */) + { + ATF_FAIL("Delete called but should have been delete[]"); + } + + /// Deletes a previously allocated array and decrements m_nblocks. + /// + /// \param mem The pointer to the memory to be deleted. + void + operator delete[](void* mem) + { + std::cout << "Releasing 'test_array' object " << mem << "\n"; + if (m_nblocks == 0) + ATF_FAIL("Unbalanced delete[]"); + m_nblocks--; + ::operator delete(mem); + } +}; + + +ssize_t test_array::m_nblocks = 0; + + +} // anonymous namespace + + +ATF_TEST_CASE(scope); +ATF_TEST_CASE_HEAD(scope) +{ + set_md_var("descr", "Tests the automatic scope handling in the " + "auto_array smart pointer class"); +} +ATF_TEST_CASE_BODY(scope) +{ + ATF_REQUIRE_EQ(test_array::m_nblocks, 0); + { + auto_array< test_array > t(new test_array[10]); + ATF_REQUIRE_EQ(test_array::m_nblocks, 1); + } + ATF_REQUIRE_EQ(test_array::m_nblocks, 0); +} + + +ATF_TEST_CASE(copy); +ATF_TEST_CASE_HEAD(copy) +{ + set_md_var("descr", "Tests the auto_array smart pointer class' copy " + "constructor"); +} +ATF_TEST_CASE_BODY(copy) +{ + ATF_REQUIRE_EQ(test_array::m_nblocks, 0); + { + auto_array< test_array > t1(new test_array[10]); + ATF_REQUIRE_EQ(test_array::m_nblocks, 1); + + { + auto_array< test_array > t2(t1); + ATF_REQUIRE_EQ(test_array::m_nblocks, 1); + } + ATF_REQUIRE_EQ(test_array::m_nblocks, 0); + } + ATF_REQUIRE_EQ(test_array::m_nblocks, 0); +} + + +ATF_TEST_CASE(copy_ref); +ATF_TEST_CASE_HEAD(copy_ref) +{ + set_md_var("descr", "Tests the auto_array smart pointer class' copy " + "constructor through the auxiliary ref object"); +} +ATF_TEST_CASE_BODY(copy_ref) +{ + ATF_REQUIRE_EQ(test_array::m_nblocks, 0); + { + auto_array< test_array > t1(new test_array[10]); + ATF_REQUIRE_EQ(test_array::m_nblocks, 1); + + { + auto_array< test_array > t2 = t1; + ATF_REQUIRE_EQ(test_array::m_nblocks, 1); + } + ATF_REQUIRE_EQ(test_array::m_nblocks, 0); + } + ATF_REQUIRE_EQ(test_array::m_nblocks, 0); +} + + +ATF_TEST_CASE(get); +ATF_TEST_CASE_HEAD(get) +{ + set_md_var("descr", "Tests the auto_array smart pointer class' get " + "method"); +} +ATF_TEST_CASE_BODY(get) +{ + test_array* ta = new test_array[10]; + auto_array< test_array > t(ta); + ATF_REQUIRE_EQ(t.get(), ta); +} + + +ATF_TEST_CASE(release); +ATF_TEST_CASE_HEAD(release) +{ + set_md_var("descr", "Tests the auto_array smart pointer class' release " + "method"); +} +ATF_TEST_CASE_BODY(release) +{ + test_array* ta1 = new test_array[10]; + { + auto_array< test_array > t(ta1); + ATF_REQUIRE_EQ(test_array::m_nblocks, 1); + test_array* ta2 = t.release(); + ATF_REQUIRE_EQ(ta2, ta1); + ATF_REQUIRE_EQ(test_array::m_nblocks, 1); + } + ATF_REQUIRE_EQ(test_array::m_nblocks, 1); + delete [] ta1; +} + + +ATF_TEST_CASE(reset); +ATF_TEST_CASE_HEAD(reset) +{ + set_md_var("descr", "Tests the auto_array smart pointer class' reset " + "method"); +} +ATF_TEST_CASE_BODY(reset) +{ + test_array* ta1 = new test_array[10]; + test_array* ta2 = new test_array[10]; + ATF_REQUIRE_EQ(test_array::m_nblocks, 2); + + { + auto_array< test_array > t(ta1); + ATF_REQUIRE_EQ(test_array::m_nblocks, 2); + t.reset(ta2); + ATF_REQUIRE_EQ(test_array::m_nblocks, 1); + t.reset(); + ATF_REQUIRE_EQ(test_array::m_nblocks, 0); + } + ATF_REQUIRE_EQ(test_array::m_nblocks, 0); +} + + +ATF_TEST_CASE(assign); +ATF_TEST_CASE_HEAD(assign) +{ + set_md_var("descr", "Tests the auto_array smart pointer class' " + "assignment operator"); +} +ATF_TEST_CASE_BODY(assign) +{ + ATF_REQUIRE_EQ(test_array::m_nblocks, 0); + { + auto_array< test_array > t1(new test_array[10]); + ATF_REQUIRE_EQ(test_array::m_nblocks, 1); + + { + auto_array< test_array > t2; + t2 = t1; + ATF_REQUIRE_EQ(test_array::m_nblocks, 1); + } + ATF_REQUIRE_EQ(test_array::m_nblocks, 0); + } + ATF_REQUIRE_EQ(test_array::m_nblocks, 0); +} + + +ATF_TEST_CASE(assign_ref); +ATF_TEST_CASE_HEAD(assign_ref) +{ + set_md_var("descr", "Tests the auto_array smart pointer class' " + "assignment operator through the auxiliary ref " + "object"); +} +ATF_TEST_CASE_BODY(assign_ref) +{ + ATF_REQUIRE_EQ(test_array::m_nblocks, 0); + { + auto_array< test_array > t1(new test_array[10]); + ATF_REQUIRE_EQ(test_array::m_nblocks, 1); + + { + auto_array< test_array > t2; + t2 = t1; + ATF_REQUIRE_EQ(test_array::m_nblocks, 1); + } + ATF_REQUIRE_EQ(test_array::m_nblocks, 0); + } + ATF_REQUIRE_EQ(test_array::m_nblocks, 0); +} + + +ATF_TEST_CASE(access); +ATF_TEST_CASE_HEAD(access) +{ + set_md_var("descr", "Tests the auto_array smart pointer class' access " + "operator"); +} +ATF_TEST_CASE_BODY(access) +{ + auto_array< test_array > t(new test_array[10]); + + for (int i = 0; i < 10; i++) + t[i].m_value = i * 2; + + for (int i = 0; i < 10; i++) + ATF_REQUIRE_EQ(t[i].m_value, i * 2); +} + + +ATF_INIT_TEST_CASES(tcs) +{ + ATF_ADD_TEST_CASE(tcs, scope); + ATF_ADD_TEST_CASE(tcs, copy); + ATF_ADD_TEST_CASE(tcs, copy_ref); + ATF_ADD_TEST_CASE(tcs, get); + ATF_ADD_TEST_CASE(tcs, release); + ATF_ADD_TEST_CASE(tcs, reset); + ATF_ADD_TEST_CASE(tcs, assign); + ATF_ADD_TEST_CASE(tcs, assign_ref); + ATF_ADD_TEST_CASE(tcs, access); +} |