Ichthyostega
00ca84a2aa
...this is something I should have done since YEARS, really... Whenever working with symbolically represented data, tests typically involve checking *hundreds* of expected results, and thus it can be really hard to find out where the failure actually happens; it is better for readability to have the expected result string immediately in the test code; now this expected result can be marked with a user-defined literal, and then on mismatch the expected and the real value will be printed.
101 lines
2.5 KiB
C++
101 lines
2.5 KiB
C++
/*
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Test-Helper - collection of functions supporting unit testing
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Copyright (C) Lumiera.org
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2009, Hermann Vosseler <Ichthyostega@web.de>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of
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the License, or (at your option) any later version.
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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 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., 675 Mass Ave, Cambridge, MA 02139, USA.
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* *****************************************************/
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/** @file test-helper.cpp
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** definition of some widely used test helper functions.
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**
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** @see TestHelper_test
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** @see TestHelperDemangling_test
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**
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*/
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#include "lib/test/test-helper.hpp"
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#include "lib/test/testdummy.hpp"
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#include "lib/format-string.hpp"
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#include "lib/format-cout.hpp"
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#include "lib/unique-malloc-owner.hpp"
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#include <string>
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using util::_Fmt;
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using std::string;
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namespace lib {
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namespace test{
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/** storage for test-dummy flags */
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long Dummy::_local_checksum = 0;
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bool Dummy::_throw_in_ctor = false;
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string
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showSizeof (size_t siz, string name)
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{
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static _Fmt fmt{"sizeof( %s ) %|40t|= %3d"};
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return fmt % name % siz;
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}
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/** @todo probably this can be done in a more clever way. Anyone...?
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*/
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string
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randStr (size_t len)
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{
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static const string alpha ("aaaabbccddeeeeffgghiiiijjkkllmmnnooooppqqrrssttuuuuvvwwxxyyyyzz0123456789");
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static const size_t MAXAL (alpha.size());
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string garbage(len,'\0');
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size_t p = len;
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while (p)
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garbage[--p] = alpha[rand() % MAXAL];
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return garbage;
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}
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/**
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* @internal check equality and print difference
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* @remark defined here to avoid inclusion of `<iostream>` in header
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*/
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bool
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ExpectString::verify (std::string const& actual) const
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{
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std::string const& expected{*this}; // to avoid endless recursion
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bool expectationMatch {actual == expected};
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if (not expectationMatch)
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{
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cerr << "FAIL___expectation___________"
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<< "\nexpect:"<<expected
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<< "\nactual:"<<actual
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<< endl;
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}
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return expectationMatch;
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}
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}} // namespace lib::test
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