Ichthyostega
9c74466778
This is something I wanted to clean-up since a very long time indeed, but always postponed it, since it requires a lot of nasty clean-up and disentangling.... Several parts had been stashed away into `src/lib/test`, which are not really related: * the testrunner and testsuite builder * generic helper utilities * specialised test-support facilities, e.g. the EventLog This changeset introduces a new top-level test folder and a namespace `::test` Code from this folder is linked into a shared library `libtestsupport.so`, which resides in the linkage hierarchy between »Vessel« and »Vault«, yet is no longer part of the Lumiera application and only linked into the test-suite.
164 lines
3.9 KiB
C++
164 lines
3.9 KiB
C++
/*
|
||
SingletonTestMock(Test) - using Singleton for injecting Test-Mocks
|
||
|
||
Copyright (C)
|
||
2008, Hermann Vosseler <Ichthyostega@web.de>
|
||
|
||
**Lumiera** is free software; you can redistribute it and/or modify it
|
||
under the terms of the GNU General Public License as published by the
|
||
Free Software Foundation; either version 2 of the License, or (at your
|
||
option) any later version. See the file COPYING for further details.
|
||
|
||
* *****************************************************************/
|
||
|
||
/** @file singleton-testmock-test.cpp
|
||
** unit test \ref SingletonTestMock_test
|
||
*/
|
||
|
||
|
||
|
||
#include "test/run.hpp"
|
||
#include "lib/depend-inject.hpp"
|
||
#include "lib/util.hpp"
|
||
|
||
#include "lib/format-cout.hpp"
|
||
#include "lib/format-string.hpp"
|
||
|
||
using util::_Fmt;
|
||
using util::isnil;
|
||
|
||
|
||
namespace lib {
|
||
namespace test{
|
||
|
||
|
||
/**
|
||
* Client Class normally to be instantiated as Singleton.
|
||
* But for tests, this class should be replaced by a Mock....
|
||
*/
|
||
class TestSingO
|
||
{
|
||
int callCnt_;
|
||
Symbol typid_;
|
||
_Fmt msg_;
|
||
|
||
public:
|
||
TestSingO(Symbol ty="TestSingO")
|
||
: callCnt_(0)
|
||
, typid_(ty)
|
||
, msg_("%s::doIt() call=%d\n")
|
||
{
|
||
TRACE (test, "ctor %s", typid_.c());
|
||
}
|
||
|
||
virtual
|
||
~TestSingO()
|
||
{
|
||
TRACE (test, "dtor %s", typid_.c());
|
||
}
|
||
|
||
void doIt ()
|
||
{
|
||
++callCnt_;
|
||
cout << msg_ % typid_ % callCnt_;
|
||
}
|
||
|
||
int getCnt ()
|
||
{
|
||
return callCnt_;
|
||
}
|
||
|
||
};
|
||
|
||
|
||
/**
|
||
* Mock-1 to replace the Client Class...
|
||
*/
|
||
struct Mock_1 : TestSingO
|
||
{
|
||
Mock_1() : TestSingO("Mock_1") { };
|
||
};
|
||
|
||
/**
|
||
* Mock-2 to replace the Client Class...
|
||
* @note no default ctor
|
||
*/
|
||
struct Mock_2 : TestSingO
|
||
{
|
||
int id;
|
||
|
||
Mock_2(Literal specialID, int i)
|
||
: TestSingO{Symbol (_Fmt{"%s_%d"} % specialID % i)}
|
||
, id{i}
|
||
{ };
|
||
};
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
/***************************************************************//**
|
||
* @test inject a Mock object into the Singleton Factory,
|
||
* to be returned and used in place of the original object.
|
||
* This test covers the full usage cycle: first access the
|
||
* Client Object, then replace it by two different mocks,
|
||
* and finally restore the original Client Object.
|
||
* @see lib::Depend
|
||
* @see depend-inject.hpp
|
||
* @see DependencyFactory_test
|
||
*/
|
||
class SingletonTestMock_test : public Test
|
||
{
|
||
|
||
void
|
||
run (Arg)
|
||
{
|
||
Depend<TestSingO> sing;
|
||
|
||
sing().doIt();
|
||
sing().doIt();
|
||
CHECK (sing().getCnt() == 2);
|
||
|
||
{
|
||
// shadow by local Mock instance
|
||
DependInject<TestSingO>::Local<Mock_1> mock_1;
|
||
sing().doIt();
|
||
sing().doIt();
|
||
sing().doIt();
|
||
sing().doIt();
|
||
sing().doIt();
|
||
CHECK (sing().getCnt() == 5);
|
||
|
||
// shadow again by different local Mock, this time with special ctor call
|
||
int instanceID = 0;
|
||
DependInject<TestSingO>::Local<Mock_2> mock_2 ([&]{ return new Mock_2{"Mock", instanceID}; });
|
||
|
||
// NOTE: the ctor call for the Mock really happens delayed...
|
||
instanceID = rani(10);
|
||
sing().doIt(); // ctor invoked on first access
|
||
CHECK (sing().getCnt() == 1);
|
||
|
||
// can access the Mock for instrumentation
|
||
CHECK (instanceID == mock_2->id);
|
||
|
||
}// original instance automatically un-shadowed here
|
||
|
||
CHECK (sing().getCnt() == 2);
|
||
sing().doIt();
|
||
CHECK (sing().getCnt() == 3);
|
||
}
|
||
};
|
||
|
||
|
||
|
||
/** Register this test class... */
|
||
LAUNCHER (SingletonTestMock_test, "unit common");
|
||
|
||
|
||
|
||
}} // namespace lib::test
|