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