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Current File : //usr/GNUstep/System/Library/Makefiles/TestFramework/Testing.h
/* Testing - Include basic tests macros for the GNUstep Testsuite
Copyright (C) 2005-2021 Free Software Foundation, Inc.
Written by: Alexander Malmberg <alexander@malmberg.org>
Updated by: Richard Frith-Macdonald <rfm@gnu.org>
This package 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 3 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
*/
#ifndef Testing_h
#define Testing_h
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#import <Foundation/NSAutoreleasePool.h>
#import <Foundation/NSCalendarDate.h>
#import <Foundation/NSException.h>
#import <Foundation/NSObjCRuntime.h>
#import <Foundation/NSObject.h>
#import <Foundation/NSRegularExpression.h>
#import <Foundation/NSString.h>
#if defined(__OBJC__) && defined(__clang__) && defined(_MSC_VER)
/* Work around Clang bug on Windows MSVC when tests contain no
* Objective-C constructs: https://bugs.llvm.org/show_bug.cgi?id=49681
*/
id __work_around_clang_bug = @"__unused__";
#endif
/* A flag indicating that the testsuite is currently processing tests
* which are actually not expected to pass, but where we hope someone
* might have committed a bugfix.
* You should set this to YES at the start of any set of tests which
* are actually unlikely to pass on all systems.
* The state of this flag is preserved by sets ... on exit from a set
* it is restored to the state it had on entry.
* This flag is ignored if the tests are performed in 'developer' mode
* (ie run with the gnustep-tests --developer option and therefore
* compiled with the TESTDEV preprocessor macro defined).
*/
static BOOL testHopeful __attribute__((unused)) = NO;
/* A flag indicating whether the most recently executed test passed.
* This is set by the pass() function (and therefore by any test macro).
* Do not modify this directly.
*/
static BOOL testPassed __attribute__((unused)) = NO;
/* A variable storing the line number of the test currently being run.
* Do not modify this directly.
*/
static unsigned testLineNumber __attribute__((unused)) = 0;
/* A flag indicating whether timestamps should be produced in the output
* for each testcase. By default it is set to TEST_TS if defined, but
* test code may override that default.
*/
#if !defined(TEST_TS)
#define TEST_TS 0
#endif
static BOOL testTimestamps __attribute__((unused)) = TEST_TS;
/* A variable storing the indentation of the set currently being run.
* Do not modify this directly.
*/
static unsigned testIndentation __attribute__((unused)) = 0;
static inline void testIndent(void) __attribute__((unused));
static inline void testIndent(void)
{
unsigned i = testIndentation;
while (i-- > 0)
{
fprintf(stderr, " ");
}
}
/* A variable set whenever a test macro is executed. This contains
* the exception which terminated the test macro, or nil if no exception
* was raised.
*/
static NSException *testRaised __attribute__((unused)) = nil;
/* The setEnded function pointer may be set to a function which is to be
* executed when the set ends, with its three parameters being the name
* of the set, a flag to say whether the set completed successfully, and
* the duration of the set.
* The SET_TIMER() macro turns on/off timing and, if timeing was
* already on, adds the time of the current period to the duration.
*/
static void (*setEnded)(const char *name, BOOL completed, double duration)
__attribute__((unused)) = 0;
#define SET_TIMER(active) \
({ \
double started = _setTiming; \
_setTiming = [NSDate timeIntervalSinceReferenceDate]; \
if (started > 0.0) setDuration += _setTiming - started; \
if (NO == active) _setTiming = 0.0; \
})\
/* The pass() function is the low-level core of the testsuite.
*
* You call this with two arguments ... an integer expression indicating the
* success or failure of the testcase (0 is a failure) and a string which
* describes the testcase.
*
* The global variable 'testHopeful' can be set to a non-zero value before
* calling this function in order to specify that if the condition is
* not true it should be treated as a dashed hope rather than a failure
* (unless the tests are being performed in 'developer' mode).
*
* The global variable 'testTimestamps' can be set to a non-zero value before
* calling this function in order to specify that the output logged is to
* include the timestamp of the testcase completion (entry into this function).
*
* If there is a better higher-level test macro available, please use
* that instead. In particular, please use the PASS_EQUAL() macro wherever
* you wish to test the equality of a pair of objective-c objects.
*
* If you are calling the function directly, please use a format string
* beginning "%s:%d" and pass __FILE__ and __LINE__ as the first two arguments
* so that this function will print out the location it was called from.
*
* This function is the most efficient option for general use, but
* please don't use it if there is any change that the evaluation of
* the expression used as its first argument might cause an exception
* in any context where that might be a problem.
*/
static void pass(int passed, const char *format, ...) __attribute__((unused)) __attribute__ ((format(printf, 2, 3)));
static void pass(int passed, const char *format, ...)
{
va_list args;
va_start(args, format);
const char *ts = "";
if (testTimestamps)
{
NSCalendarDate *d = [NSCalendarDate date];
[d setCalendarFormat: @"(%Y-%m-%d %H:%M:%S.%F %z) "];
ts = [[d description] cString];
}
if (passed)
{
fprintf(stderr, "Passed test: %s", ts);
testPassed = YES;
}
#if !defined(TESTDEV)
else if (YES == testHopeful)
{
fprintf(stderr, "Dashed hope: %s", ts);
testPassed = NO;
}
#endif
else
{
fprintf(stderr, "Failed test: %s", ts);
testPassed = NO;
}
testIndent();
vfprintf(stderr, format, args);
fprintf(stderr, "\n");
va_end(args);
#if defined(FAILFAST)
if (NO == testPassed && NO == testHopeful)
{
exit(1); // Abandon testing now.
}
#endif
}
/* The testStart() function is used by the PASS macros to provide a break
* point in the source code after the current test line has been stored in
* testLineNumber.
* This is provided for when debugging ... you can set a breakpoint in the
* testStart() function for the line number reported in a test failure and
* have the debugger stop in just the right place.
*/
static void testStart() __attribute__((unused));
static void testStart()
{
return;
}
/* Tests a code expression which evaluates to an integer value.
* The expression may not contain commas unless it is bracketed.
* The format must be a literal string printf style format.
* If the expression evaluates to zero the test does not pass.
* If the expression causes an exception to be raised, the exception
* is caught and logged but the test does not pass.
* Otherwise, the test passes.
* Basically equivalent to pass() but with exception handling.
*/
#define PASS(testExpression__, testFormat__, ...) \
NS_DURING \
{ \
int _cond; \
id _tmp = testRaised; testRaised = nil; [_tmp release]; \
testLineNumber = __LINE__; \
testStart(); \
_cond = (int)(testExpression__); \
pass(_cond, "%s:%d ... " testFormat__, __FILE__, \
__LINE__, ## __VA_ARGS__); \
} \
NS_HANDLER \
testRaised = [localException retain]; \
pass(0, "%s:%d ... " testFormat__, __FILE__, __LINE__, ## __VA_ARGS__); \
printf("%s: %s", [[testRaised name] UTF8String], \
[[testRaised description] UTF8String]); \
NS_ENDHANDLER
/* This category declaration should keep the compiler happy ...
* it defines an informal protocol specifying methods your test
* classes may implement to aid with testing.
*/
@interface NSObject(TestFramework)
/* The -isEqualForTestcase: method may be implemented in order to have
* the PASS_EQUAL macro perform special equality testing rather than
* using the normal equality test method (-isEqual).
*/
- (BOOL) isEqualForTestcase: (id)otherObject;
@end
/* Tests a code expression which evaluates to an object value.
* The expression may not contain commas unless it is bracketed.
* The expected value may not contain commas unless it is bracketed.
* The format must be a literal string printf style format.
*
* Where the expression evaluates to an object which is identical to
* the expect value, or where the expect value responds to -isEqualForTestcase:
* and calling [expact -isEqualForTestcase: object] return YES,
* or where the expect value does not respond to -isEqualForTestcase: and
* calling [expect isEqual: object] returns YES, then the test has passed.
*
* The particularly useful thing about this macro is that, if the
* results of the expression and the expected object are not equal,
* the string representation of both values is logged so that you
* can get a better idea of what went wrong.
*/
#define PASS_EQUAL(testExpression__, testExpect__, testFormat__, ...) \
NS_DURING \
{ \
int _cond; \
id _obj; \
id _exp; \
id _tmp = testRaised; testRaised = nil; [_tmp release]; \
testLineNumber = __LINE__; \
testStart(); \
_obj = (id)(testExpression__);\
_exp = (id)(testExpect__);\
if (_obj == _exp) \
{ \
_cond = YES; \
} \
else if ([_obj respondsToSelector: @selector(isEqualForTestcase:)]) \
{ \
_cond = (BOOL)[(id)_exp isEqualForTestcase: _obj]; \
} \
else \
{ \
_cond = [_exp isEqual: _obj]; \
} \
pass(_cond, "%s:%d ... " testFormat__, __FILE__, \
__LINE__, ## __VA_ARGS__); \
if (0 == _cond) \
{ \
NSString *s = [_obj description]; \
if ([s length] == 1) \
{ \
fprintf(stderr, \
"Expected '%s' and got '%s' (unicode codepoint %d)\n", \
[[_exp description] UTF8String], [s UTF8String], \
[s characterAtIndex: 0]); \
} \
else if (nil == s) \
{ \
fprintf(stderr, "Expected '%s' and got (nil)\n", \
[[_exp description] UTF8String]); \
} \
else \
{ \
fprintf(stderr, "Expected '%s' and got '%s'\n", \
[[_exp description] UTF8String], [s UTF8String]); \
} \
} \
} \
NS_HANDLER \
testRaised = [localException retain]; \
pass(0, "%s:%d ... " testFormat__, __FILE__, __LINE__, ## __VA_ARGS__); \
printf("%s: %s", [[testRaised name] UTF8String], \
[[testRaised description] UTF8String]); \
NS_ENDHANDLER
/* Tests a code expression which evaluates to an object value.
* The expression may not contain commas unless it is bracketed.
* The expected pattern may not contain commas unless it is bracketed.
* The format must be a literal string printf style format.
*
* Where the expression evaluates to an object whose description matches
* the expect value reguilar expression, the test has passed.
*
* If the results of the expression and the expected pattern o not match,
* the string representation of both values is logged so that you
* can get a better idea of what went wrong.
*/
#define PASS_MATCH(testExpression__, testExpect__, testFormat__, ...) \
NS_DURING \
{ \
int _cond; \
id _obj; \
id _dsc; \
id _exp; \
id _pat; \
id _tmp = testRaised; testRaised = nil; [_tmp release]; \
testLineNumber = __LINE__; \
testStart(); \
_obj = (id)(testExpression__);\
_dsc = [_obj description];\
_pat = (id)(testExpect__);\
_exp = [[[NSRegularExpression alloc] initWithPattern: _pat \
options: 0 error: 0] autorelease];\
if (nil != _dsc && nil != _exp) \
{ \
NSRange r = NSMakeRange(0, [_dsc length]);\
r = [_exp rangeOfFirstMatchInString: _dsc options: 0 range: r];\
if (r.length > 0)\
{ \
_cond = YES; \
} \
} \
else \
{ \
_cond = NO; \
} \
pass(_cond, "%s:%d ... " testFormat__, __FILE__, \
__LINE__, ## __VA_ARGS__); \
if (0 == _cond) \
{ \
if ([_dsc length] == 1) \
{ \
fprintf(stderr, \
"Expected '%s' and got '%s' (unicode codepoint %d)\n", \
[[_pat description] UTF8String], [_dsc UTF8String], \
[_dsc characterAtIndex: 0]); \
} \
else if (nil == _dsc) \
{ \
fprintf(stderr, "Expected '%s' and got (nil)\n", \
[[_pat description] UTF8String]); \
} \
else \
{ \
fprintf(stderr, "Expected '%s' and got '%s'\n", \
[[_pat description] UTF8String], [_dsc UTF8String]); \
} \
} \
} \
NS_HANDLER \
testRaised = [localException retain]; \
pass(0, "%s:%d ... " testFormat__, __FILE__, __LINE__, ## __VA_ARGS__); \
printf("%s: %s", [[testRaised name] UTF8String], \
[[testRaised description] UTF8String]); \
NS_ENDHANDLER
/* Please use the PASS_EXCEPTION() macro to handle any code where you
* want an exception to be thrown. The macro checks that the supplied
* code throws an expection with the specified name. If the code fails
* to throw, or throws the wrong exception, then the code does not pass.
* You can supply nil for expected exception name if you don't care about
* the exact type of exception thrown.
* The code fragment may not contain commas unless it is surrounded by
* brackets. eg. PASS_EXCEPTION(({code here}), name, "hello")
* The format must be a literal string printf style format.
*/
#define PASS_EXCEPTION(testCode__, testExpect__, testFormat__, ...) \
NS_DURING \
id _tmp = testRaised; testRaised = nil; [_tmp release]; \
{ \
testLineNumber = __LINE__; \
testStart(); \
testCode__; \
} \
pass(0, "%s:%d ... " testFormat__, __FILE__, __LINE__, ## __VA_ARGS__); \
NS_HANDLER \
testRaised = [localException retain]; \
pass((nil == (testExpect__) \
|| [[testRaised name] isEqual: (testExpect__)]), \
"%s:%d ... " testFormat__, __FILE__, __LINE__, ## __VA_ARGS__); \
if (nil != (testExpect__) \
&& NO == [(testExpect__) isEqual: [testRaised name]]) \
fprintf(stderr, "Expected '%s' and got '%s'\n", \
[(testExpect__) UTF8String], \
[[testRaised name] UTF8String]); \
NS_ENDHANDLER
/* Please use the PASS_RUNS() macro to handle any code where you want the
* code to run to completion without an exception being thrown, but you don't
* have a particular expression to be checked.
* The code fragment may not contain commas unless it is surrounded by
* brackets. eg. PASS_EXCEPTION(({code here}), name, "hello")
* The format must be a literal string printf style format.
*/
#define PASS_RUNS(testCode__, testFormat__, ...) \
NS_DURING \
id _tmp = testRaised; testRaised = nil; [_tmp release]; \
{ \
testLineNumber = __LINE__; \
testStart(); \
testCode__; \
} \
pass(1, "%s:%d ... " testFormat__, __FILE__, __LINE__, ## __VA_ARGS__); \
NS_HANDLER \
testRaised = [localException retain]; \
pass(0, "%s:%d ... " testFormat__, __FILE__, __LINE__, ## __VA_ARGS__); \
printf("%s: %s", [[testRaised name] UTF8String], \
[[testRaised description] UTF8String]); \
NS_ENDHANDLER
/* SETs are used to group multiple testcases or code which is outside of
* the scope of the current test but could raise exceptions that should
* be caught to allow further tests to run.
*
* You must pass a short description to identify the set at both its
* start and its end. This allows the seat to be easily identified in the
* log, and also allows for checking to be sure that each start if a set
* is matched by a corresponding end.
*
* The state of the 'testHopeful' flag is saved at the start of the set and
* restored at the end of the set, so you can start your code by setting
* 'testHopeful=YES;' to mark any tests within the set as being part of a
* group of tests we don't expect to pass.
*
* Importantly, you may skip some or all of the tests in a set if those
* tests are not supported in the package being tested (eg. testing of
* functionality which depends on some external library which was not
* available when the package being tested was buit).
*
* Any uncaught exception occurring inside a set will abort the entire set
* so that remaining tests in the set will not be executed, but you may
* also abandon remaining tests upon any test failure.
*
* The tests within the set are enclosed in an autorelease pool, and any
* temporary objects are cleaned up at the end of the set.
*/
/* The START_SET() macro starts a set of grouped tests. It must be matched
* by a corresponding END_SET() with the same string as an argument.
* The argument is a short description to be printed in the log on entry.
* The duration of each set is automatically timed (you can suspend/resume
* timing using the SET_TIMER macro). Each timed period is added to the
* setDuration local variable while a set is executing (you can of course
* modify this variable using code inside the set).
*/
#define START_SET(setName) \
{ \
double setDuration = 0.0; \
BOOL _setSuccess = YES; \
double _setTiming = [NSDate timeIntervalSinceReferenceDate]; \
BOOL _save_hopeful = testHopeful; \
unsigned _save_indentation = testIndentation; \
int _save_line = __LINE__; \
char *_save_set = (char*)malloc(strlen(setName) + 1); \
strncpy(_save_set, setName, strlen(setName) + 1); \
fprintf(stderr, "Start set: "); \
testIndent(); \
fprintf(stderr, "%s:%d ... %s\n", __FILE__, __LINE__, _save_set); \
testIndentation++; \
NS_DURING \
NSAutoreleasePool *_setPool = [NSAutoreleasePool new]; \
{
/* Helper macro for END_SET() ... do not use directly.
*/
#if defined(TESTDEV)
# define OMITTED \
{ \
fprintf(stderr, "Skipped set: "); \
testIndent(); \
fprintf(stderr, "%s\n", [[localException reason] UTF8String]); \
}
#else
# define OMITTED ;
#endif
/* The END_SET() macro terminates a set of grouped tests. It must be matched
* by a corresponding START_SET() with the same string as an argument.
* The argument is a short description to be printed in the log on entry.
* When a set ends, the function pointed to by the setEnded function is
* called with three arguments which allow you to perform extra reporting
* or cleanup etc. The three arguments are the set name, a flag to say
* whether the set completed successfully, and the duration of the set.
*/
#define END_SET(setName) \
} \
[_setPool release]; \
NS_HANDLER \
_setSuccess = NO; \
if (YES == [[localException name] isEqualToString: @"SkipSet"]) \
{ \
fprintf(stderr, "Skipped set: "); \
testIndent(); \
fprintf(stderr, "%s\n", [[localException reason] UTF8String]); \
} \
else if (YES == [[localException name] isEqualToString: @"OmitSet"]) \
OMITTED \
else \
{ \
if (YES == [[localException name] isEqualToString: @"FailSet"]) \
{ \
fprintf(stderr, "Failed set: "); \
testIndent(); \
fprintf(stderr, "%s:%d ... need not met in %s.\n", \
__FILE__, _save_line, _save_set); \
} \
else \
{ \
fprintf(stderr, "EXCEPTION: %s %s %s\n", \
[[localException name] UTF8String], \
[[localException reason] UTF8String], \
[[[localException userInfo] description] UTF8String]); \
fprintf(stderr, "Failed set: "); \
testIndent(); \
fprintf(stderr, "%s:%d ... problem in %s.\n", \
__FILE__, _save_line, _save_set); \
} \
} \
NS_ENDHANDLER \
SET_TIMER(NO); \
if (0 != setEnded) (*setEnded)(setName, _setSuccess, setDuration); \
if (strcmp(_save_set, setName) != 0) \
fprintf(stderr, "Error: %s:%d ... END(%s) with START(%s).\n", \
__FILE__, __LINE__, setName, _save_set); \
testIndentation = _save_indentation; \
fprintf(stderr, "End set: "); \
testIndent(); \
fprintf(stderr, "%s:%d ... %s\n", __FILE__, __LINE__, _save_set); \
free(_save_set); \
testHopeful = _save_hopeful; \
}
/* The NEED macro takes a test macro as an argument and breaks out of a set
* and reports it as failed if the test does not pass.
*/
#define NEED(testToTry) \
{testToTry;} \
if (NO == testPassed) \
{ \
if (nil != testRaised) \
{ \
[testRaised raise]; \
} \
else \
{ \
[NSException raise: @"FailSet" format: @"Test did not pass"]; \
} \
}
/* The SKIP() macro skips the remainder of a set of grouped tests.
* Its argument is a literal printf style format string and variable
* arguments to print a message giving the reason for skipping the set.
* This should be a short one line message (for immediate display),
* preferably with a more detailed explanation on subsequent lines.
*/
#define SKIP(testFormat__, ...) \
[NSException raise: @"SkipSet" format: @"%s %d ... " testFormat__, \
__FILE__, __LINE__, ## __VA_ARGS__];
/* The OMIT() macro acts just like SKIP() except that it only reports the
* set if running in developer mode. The idea is that it should be used for
* groups of tests which are not expected to be available on most platforms
* yet, so only developers should see them reported.
*/
#define OMIT(testFormat__, ...) \
[NSException raise: @"OmitSet" format: @"%s %d ... " testFormat__, \
__FILE__, __LINE__, ## __VA_ARGS__];
/* some good macros to compare floating point numbers */
#import <math.h>
#import <float.h>
#define EQ(x, y) \
(((x) >= ((y) - FLT_EPSILON*100)) && ((x) <= ((y) + FLT_EPSILON*100)))
#define LE(x, y) ((x)<(y) || EQ(x, y))
#define GE(x, y) ((y)<(x) || EQ(x, y))
#define LT(x, y) (!GE(x, y))
#define GT(x, y) (!LE(x, y))
/* A convenience macro to pass an object as a string to a print function.
*/
#define POBJECT(obj) [[(obj) description] UTF8String]
#endif
#ifndef CREATE_AUTORELEASE_POOL
#define RETAIN(object) [object retain]
#define RELEASE(object) [object release]
#define AUTORELEASE(object) [object autorelease]
#define TEST_RETAIN(object) ({\
id __object = (id)(object); (__object != nil) ? [__object retain] : nil; })
#define TEST_RELEASE(object) ({\
id __object = (id)(object); if (__object != nil) [__object release]; })
#define TEST_AUTORELEASE(object) ({\
id __object = (id)(object); (__object != nil) ? [__object autorelease] : nil; })
#define ASSIGN(object,value) ({\
id __value = (id)(value); \
id __object = (id)(object); \
if (__value != __object) \
{ \
if (__value != nil) \
{ \
[__value retain]; \
} \
object = __value; \
if (__object != nil) \
{ \
[__object release]; \
} \
} \
})
#define ASSIGNCOPY(object,value) ({\
id __value = (id)(value); \
id __object = (id)(object); \
if (__value != __object) \
{ \
if (__value != nil) \
{ \
__value = [__value copy]; \
} \
object = __value; \
if (__object != nil) \
{ \
[__object release]; \
} \
} \
})
#define DESTROY(object) ({ \
if (object) \
{ \
id __o = object; \
object = nil; \
[__o release]; \
} \
})
#define CREATE_AUTORELEASE_POOL(X) \
NSAutoreleasePool *(X) = [NSAutoreleasePool new]
#define RECREATE_AUTORELEASE_POOL(X) \
if (X == nil) \
(X) = [NSAutoreleasePool new]
#endif
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