270 lines
9.0 KiB
C
270 lines
9.0 KiB
C
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//====== Copyright <20> 1996-2005, Valve Corporation, All rights reserved. =======//
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//
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// Purpose:
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//
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// $NoKeywords: $
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//
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//=============================================================================//
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#ifndef UNITLIB_H
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#define UNITLIB_H
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#ifdef _WIN32
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#pragma once
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#endif
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#include "tier0/platform.h"
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#include "tier1/interface.h"
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#include "appframework/IAppSystem.h"
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//-----------------------------------------------------------------------------
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// Usage model for the UnitTest library
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//
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// The general methodology here is that clients are expected to create unit
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// test DLLs that statically link to the unit test DLL and which implement
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// tests of various libraries. The unit test application will dynamically
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// load all DLLs in a directory, which causes them to install their test cases
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// into the unit test system. The application then runs through all tests and
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// executes them all, displaying the results.
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//
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// *** NOTE: The test suites are compiled in both debug and release builds,
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// even though it's expected to only be useful in debug builds. This is because
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// I couldn't come up with a good way of disabling the code in release builds.
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// (The only options I could come up with would still compile in the functions,
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// just not install them into the unit test library, or would make it so that
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// you couldn't step through the unit test code).
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//
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// Even though this is the case, there's no reason not to add test cases
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// directly into your shipping DLLs, as long as you surround the code with
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// #ifdef _DEBUG. To error check a project to make sure it's not compiling
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// in unit tests in Release build, just don't link in unitlib.lib in Release.
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// You can of course also put your test suites into separate DLLs.
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//
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// All tests inherit from the ITestCase interface. There are two major kinds
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// of tests; the first is a single test case meant to run a piece of
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// code and check its results match expected values using the Assert macros.
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// The second kind is a test suite which is simply a list of other tests.
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//
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// The following classes and macros are used to easily create unit test cases
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// and suites:
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//
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// Use DEFINE_TESTSUITE to define a particular test suite, and DEFINE_TESTCASE
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// to add as many test cases as you like to that test suite, as follows:
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//
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// DEFINE_TESTSUITE( VectorTestSuite )
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//
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// DEFINE_TESTCASE( VectorAdditionTest, VectorTestSuite )
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// {
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// .. test code here ..
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// }
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//
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// Note that the definition of the test suite can occur in a different file
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// as the test case. A link error will occur if the test suite to which a
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// test case is added has not been defined.
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//
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// To create a test case that is not part of a suite, use...
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//
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// DEFINE_TESTCASE_NOSUITE( VectorAdditionTest )
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// {
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// .. test code here ..
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// }
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//
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// You can also create a suite which is a child of another suite using
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//
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// DEFINE_SUBSUITE( VectorTestSuite, MathTestSuite )
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//
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//-----------------------------------------------------------------------------
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//-----------------------------------------------------------------------------
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// dll export stuff
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//-----------------------------------------------------------------------------
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#ifdef UNITLIB_DLL_EXPORT
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#define UNITLIB_INTERFACE DLL_EXPORT
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#define UNITLIB_CLASS_INTERFACE DLL_CLASS_EXPORT
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#define UNITLIB_GLOBAL_INTERFACE DLL_GLOBAL_EXPORT
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#else
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#define UNITLIB_INTERFACE DLL_IMPORT
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#define UNITLIB_CLASS_INTERFACE DLL_CLASS_IMPORT
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#define UNITLIB_GLOBAL_INTERFACE DLL_GLOBAL_IMPORT
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#endif
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//-----------------------------------------------------------------------------
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// All unit test libraries can be asked for a unit test
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// AppSystem to perform connection
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//-----------------------------------------------------------------------------
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#define UNITTEST_INTERFACE_VERSION "UnitTestV001"
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//-----------------------------------------------------------------------------
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//
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// NOTE: All classes and interfaces below you shouldn't use directly.
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// Use the DEFINE_TESTSUITE and DEFINE_TESTCASE macros instead.
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//
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//-----------------------------------------------------------------------------
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//-----------------------------------------------------------------------------
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// Test case + suite interface
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//-----------------------------------------------------------------------------
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class ITestCase
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{
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public:
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// This returns the test name
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virtual char const* GetName() = 0;
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// This runs the test
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virtual void RunTest() = 0;
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};
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class ITestSuite : public ITestCase
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{
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public:
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// Add a test to the suite...
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virtual void AddTest( ITestCase* pTest ) = 0;
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};
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//-----------------------------------------------------------------------------
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// This is the main function exported by the unit test library used by
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// unit test DLLs to install their test cases into a list to be run
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//-----------------------------------------------------------------------------
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UNITLIB_INTERFACE void UnitTestInstallTestCase( ITestCase* pTest );
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//-----------------------------------------------------------------------------
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// These are the methods used by the unit test running program to run all tests
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//-----------------------------------------------------------------------------
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UNITLIB_INTERFACE int UnitTestCount();
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UNITLIB_INTERFACE ITestCase* GetUnitTest( int i );
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//-----------------------------------------------------------------------------
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// Helper for unit test DLLs to expose IAppSystems
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//-----------------------------------------------------------------------------
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#define USE_UNITTEST_APPSYSTEM( _className ) \
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static _className s_UnitTest ## _className; \
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EXPOSE_SINGLE_INTERFACE_GLOBALVAR( _className, IAppSystem, UNITTEST_INTERFACE_VERSION, s_UnitTest ## _className );
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//-----------------------------------------------------------------------------
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// Base class for test cases
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//-----------------------------------------------------------------------------
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class UNITLIB_CLASS_INTERFACE CTestCase : public ITestCase
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{
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public:
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CTestCase( char const* pName, ITestSuite* pParent = 0 );
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~CTestCase();
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// Returns the test name
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char const* GetName();
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private:
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char* m_pName;
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};
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//-----------------------------------------------------------------------------
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// Test suite class
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//-----------------------------------------------------------------------------
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class UNITLIB_CLASS_INTERFACE CTestSuite : public ITestSuite
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{
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public:
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CTestSuite( char const* pName, ITestSuite* pParent = 0 );
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~CTestSuite();
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// This runs the test
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void RunTest();
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// Add a test to the suite...
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void AddTest( ITestCase* pTest );
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// Returns the test name
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char const* GetName();
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protected:
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int m_TestCount;
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ITestCase** m_ppTestCases;
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char* m_pName;
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};
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#define TESTSUITE_CLASS( _suite ) \
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class CTS ## _suite : public CTestSuite \
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{ \
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public: \
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CTS ## _suite(); \
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};
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#define TESTSUITE_ACCESSOR( _suite ) \
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CTS ## _suite* GetTS ## _suite() \
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{ \
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static CTS ## _suite s_TS ## _suite; \
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return &s_TS ## _suite; \
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}
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#define FWD_DECLARE_TESTSUITE( _suite ) \
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class CTS ## _suite; \
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CTS ## _suite* GetTS ## _suite();
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#define DEFINE_TESTSUITE( _suite ) \
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TESTSUITE_CLASS( _suite ) \
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TESTSUITE_ACCESSOR( _suite ) \
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CTS ## _suite::CTS ## _suite() : CTestSuite( #_suite ) {}
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#define DEFINE_SUBSUITE( _suite, _parent ) \
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TESTSUITE_CLASS( _suite ) \
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TESTSUITE_ACCESSOR( _suite ) \
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FWD_DECLARE_TESTSUITE( _parent ) \
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CTS ## _suite::CTS ## _suite() : CTestSuite( #_suite, GetTS ## _parent() ) {}
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#define TESTCASE_CLASS( _case ) \
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class CTC ## _case : public CTestCase \
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{ \
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public: \
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CTC ## _case (); \
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void RunTest(); \
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};
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#define DEFINE_TESTCASE_NOSUITE( _case ) \
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TESTCASE_CLASS( _case ) \
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CTC ## _case::CTC ## _case () : CTestCase( #_case ) {} \
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\
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CTC ## _case s_TC ## _case; \
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\
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void CTC ## _case ::RunTest()
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#define DEFINE_TESTCASE( _case, _suite ) \
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TESTCASE_CLASS( _case ) \
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FWD_DECLARE_TESTSUITE( _suite ) \
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CTC ## _case::CTC ## _case () : CTestCase( #_case, GetTS ## _suite() ) {} \
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\
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CTC ## _case s_TC ## _case; \
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\
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void CTC ## _case ::RunTest()
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#define _Shipping_AssertMsg( _exp, _msg, _executeExp, _bFatal ) \
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do { \
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if (!(_exp)) \
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{ \
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LoggingResponse_t ret = Log_Assert( "%s (%d) : %s\n", __TFILE__, __LINE__, _msg ); \
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_executeExp; \
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if ( ret == LR_DEBUGGER ) \
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{ \
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if ( !ShouldUseNewAssertDialog() || DoNewAssertDialog( __TFILE__, __LINE__, _msg ) ) \
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DebuggerBreak(); \
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if ( _bFatal ) \
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_ExitOnFatalAssert( __TFILE__, __LINE__ ); \
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} \
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} \
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} while (0)
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#define Shipping_Assert( _exp ) _Shipping_AssertMsg( _exp, _T("Assertion Failed: ") _T(#_exp), ((void)0), false )
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#endif // UNITLIB_H
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