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/***********************************************************************************
TestController.h
SUMMARY: An "faux-singleton" object to encapsulate a hodgepodge of state and
functionality relating to the test suite. Probably should be broken
into smaller pieces.
* Copyright (c) 1997
* Mark of the Unicorn, Inc.
*
* Permission to use, copy, modify, distribute and sell this software
* and its documentation for any purpose is hereby granted without fee,
* provided that the above copyright notice appear in all copies and
* that both that copyright notice and this permission notice appear
* in supporting documentation. Mark of the Unicorn makes no
* representations about the suitability of this software for any
* purpose. It is provided "as is" without express or implied warranty.
***********************************************************************************/
#if !INCLUDED_MOTU_nc_alloc
#define INCLUDED_MOTU_nc_alloc 1
#include "Prefix.h"
#if defined (EH_NEW_HEADERS)
# include <utility>
#else
# include <pair.h>
#endif
extern long alloc_count;
extern long object_count;
struct TestController {
// Report that the current test has succeeded.
static void ReportSuccess(int);
//
// Leak detection
//
// Turn the recording of the addresses of individual allocated
// blocks on or off. If not called, allocations will only be
// counted, but deallocations won't be checked for validity.
static void TrackAllocations( bool );
static bool TrackingEnabled();
// Call this to begin a new leak-detection cycle. Resets all
// allocation counts, etc.
static void BeginLeakDetection();
// Returns true iff leak detection is currently in effect
static bool LeakDetectionEnabled();
// Ends leak detection and reports any resource leaks.
// Returns true if any occurred.
static bool ReportLeaked();
//
// Exception-safety
//
// Don't test for exception-safety
static void TurnOffExceptions();
// Set operator new to fail on the nth invocation
static void SetFailureCountdown( long n );
// Set operator new to never fail.
static void CancelFailureCountdown();
// Throws an exception if the count has been reached. Call this
// before every operation that might fail in the real world.
static void maybe_fail(long);
//
// Managing verbose feedback.
//
// Call to begin a strong, weak, or const test. If verbose
// reporting is enabled, prints the test category.
static void SetCurrentTestCategory( const char* str );
// Call to set the name of the container being tested.
static void SetCurrentContainer( const char* str );
// Sets the name of the current test.
static void SetCurrentTestName(const char* str);
// Turn verbose reporting on or off.
static void SetVerbose(bool val);
private:
enum { kNotInExceptionTest = -1 };
static void ClearAllocationSet();
static void EndLeakDetection();
static void PrintTestName( bool err=false );
static long& Failure_threshold();
static long possible_failure_count;
static const char* current_test;
static const char* current_test_category;
static const char* current_container;
static bool nc_verbose;
static bool never_fail;
static bool track_allocations;
static bool leak_detection_enabled;
};
extern TestController gTestController;
//
// inline implementations
//
inline void simulate_possible_failure() {
gTestController.maybe_fail(0);
}
inline void simulate_constructor() {
gTestController.maybe_fail(0);
++object_count;
}
inline void simulate_destructor() {
--object_count;
}
inline void TestController::TrackAllocations(bool track) {
track_allocations = track;
}
inline bool TestController::TrackingEnabled() {
return track_allocations;
}
inline void TestController::SetFailureCountdown(long count) {
Failure_threshold() = count;
possible_failure_count = 0;
}
inline void TestController::CancelFailureCountdown() {
Failure_threshold() = kNotInExceptionTest;
}
inline void TestController::BeginLeakDetection() {
alloc_count = 0;
object_count = 0;
ClearAllocationSet();
leak_detection_enabled = true;
}
inline bool TestController::LeakDetectionEnabled() {
return leak_detection_enabled;
}
inline void TestController::EndLeakDetection() {
leak_detection_enabled = false;
}
inline void TestController::SetCurrentTestCategory(const char* str) {
current_test_category = str;
if (nc_verbose)
PrintTestName();
}
inline void TestController::SetCurrentContainer(const char* str) {
current_container=str;
}
inline void TestController::SetCurrentTestName(const char* str) {
current_test = str;
}
inline void TestController::SetVerbose(bool val) {
nc_verbose = val;
}
inline void TestController::TurnOffExceptions() {
never_fail = true;
}
#endif // INCLUDED_MOTU_nc_alloc
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