Ichthyostega
a6aad5261c
verify also that clean-up happens in case of exceptions thrown; as an aside, add Macro to check for ''any'' exception and match on something in the message (as opposed to just a Lumiera Exception)
129 lines
3.7 KiB
C++
129 lines
3.7 KiB
C++
/*
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TempDir(Test) - verify automated temporary working directory
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Copyright (C) Lumiera.org
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2024, 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 temp-dir-test.cpp
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** unit test \ref TempDir_test
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*/
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#include "lib/test/run.hpp"
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#include "lib/test/test-helper.hpp"
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#include "lib/test/temp-dir.hpp"
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#include <fstream>
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namespace lib {
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namespace test{
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namespace test{
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/***************************************************************//**
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* @test validate proper behaviour of a temporary working directory,
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* including automatic name allocation and clean-up.
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* @see temp-dir.hpp
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* @see DataCSV_test usage example
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*/
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class TempDir_test : public Test
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{
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void
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run (Arg)
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{
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simpleUsage();
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verify_Lifecycle();
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}
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void
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simpleUsage()
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{
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TempDir temp;
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auto ff = temp.makeFile();
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CHECK (fs::exists (ff));
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CHECK (fs::is_empty (ff));
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std::ofstream out{ff, std::ios_base::out};
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auto scree = randStr(55);
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out << scree << std::endl;
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out.close();
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CHECK (fs::is_regular_file (ff));
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CHECK (not fs::is_empty (ff));
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std::ifstream in{ff};
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string readBack;
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in >> readBack;
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CHECK (readBack == scree);
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}
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/** @test automatic clean-up even in case of errors. */
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void
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verify_Lifecycle ()
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{
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fs::path d1;
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fs::path d2;
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{
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TempDir tt;
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d1 = tt;
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tt.makeFile("huibuh");
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tt.makeFile("huibuh");
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tt.makeFile("huibuh");
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std::ofstream boo{d1 / "huibuh"};
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boo << "boo";
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fs::create_directories(d1 / "bug/bear");
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fs::rename (d1 / "huibuh", d1 / "bug/bear/fray");
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auto scare = [&]{
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TempDir tt;
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d2 = tt;
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tt.makeFile("Mooo");
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CHECK (fs::exists(d2 / "Mooo"));
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CHECK (not fs::is_empty(d2));
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fs::create_directory(d2 / "Mooo"); // Booom!
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};
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CHECK (d2.empty());
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CHECK (not d1.empty());
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VERIFY_FAIL ("File exists", scare() );
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// nested context was cleaned-up after exception
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CHECK (not fs::exists(d2));
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CHECK ( fs::exists(d1));
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CHECK (not d2.empty());
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CHECK (d1 != d2);
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boo << "moo";
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boo.close();
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CHECK (6 == fs::file_size(d1 / "bug/bear/fray"));
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// so bottom line: can do filesystem stuff for real...
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}
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// All traces are gone...
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CHECK (not fs::exists(d1));
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CHECK (not fs::exists(d2));
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}
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};
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LAUNCHER (TempDir_test, "unit common");
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}}} // namespace lib::test::test
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