How to use I_GREYFail method of GREY_ASSERTION_DEFINES_H class

...101 *  @param ...       Parameters used to generate the failure description from the reason string.102 */103#define GREYFail(__reason, ...) \104  I_GREYSetCurrentAsFailable(); \105  I_GREYFail(__reason, ##__VA_ARGS__)106/**107 *  Generates a failure unconditionally, with the provided @c __reason and @c __details.108 *109 *  @param __reason  The reason for the failure.110 *  @param __details The failure details. May be a format string, in which case the varargs will be111 *                   required.112 *  @param ...       Parameters used to generate the failure description from the reason string.113 */114#define GREYFailWithDetails(__reason, __details, ...)  \115  I_GREYSetCurrentAsFailable(); \116  I_GREYFailWithDetails(__reason, __details, ##__VA_ARGS__)117#pragma mark - Private Use By Framework Only118// THESE ARE METHODS TO BE CALLED BY THE FRAMEWORK ONLY.119// DO NOT CALL OUTSIDE FRAMEWORK120/// @cond INTERNAL121#define I_GREYFormattedString(__var, __format, ...) \122  do { \123    /* clang warns us about a leak in formatting but we don't care as we are about to fail. */ \124    _Pragma("clang diagnostic push") \125    _Pragma("clang diagnostic ignored \"-Wformat-nonliteral\"") \126    _Pragma("clang diagnostic ignored \"-Wformat-security\"") \127    __var = [NSString stringWithFormat:__format, ##__VA_ARGS__]; \128    _Pragma("clang diagnostic pop") \129  } while (NO)130#define I_GREYRegisterFailure(__exceptionName, __reason, __details, ...) \131  do { \132    NSString *details__; \133    I_GREYFormattedString(details__, __details, ##__VA_ARGS__); \134    [greyFailureHandler handleException:[GREYFrameworkException exceptionWithName:__exceptionName \135                                                                           reason:__reason] \136                              details:details__]; \137  } while (NO)138// No private macro should call this.139#define I_GREYSetCurrentAsFailable() \140  do { \141    if ([greyFailureHandler respondsToSelector:@selector(setInvocationFile:andInvocationLine:)]) { \142      [greyFailureHandler setInvocationFile:[NSString stringWithUTF8String:__FILE__] \143                          andInvocationLine:__LINE__]; \144    } \145  } while (NO)146#define I_GREYAssert(__a1, __reason, ...) \147  do { \148    if (!(__a1)) { \149      NSString *formattedReason__; \150      I_GREYFormattedString(formattedReason__, __reason, ##__VA_ARGS__); \151      I_GREYRegisterFailure(kGREYAssertionFailedException, formattedReason__, @""); \152    } \153  } while(NO)154#define I_GREYAssertTrue(__a1, __reason, ...) \155  do { \156    if ((__a1) == NO) { \157      NSString *formattedReason__; \158      I_GREYFormattedString(formattedReason__, __reason, ##__VA_ARGS__); \159      I_GREYRegisterFailure(kGREYAssertionFailedException, \160          formattedReason__, \161          @"Expected expression to be True but it was False."); \162    } \163  } while(NO)164#define I_GREYAssertFalse(__a1, __reason, ...) \165  do { \166    if ((__a1) != NO) { \167      NSString *formattedReason__; \168      I_GREYFormattedString(formattedReason__, __reason, ##__VA_ARGS__); \169      I_GREYRegisterFailure(kGREYAssertionFailedException, \170          formattedReason__, \171          @"Expected expression to be False but it was True."); \172    } \173  } while(NO)174#define I_GREYAssertNotNil(__a1, __reason, ...) \175  do { \176    if ((__a1) == nil) { \177      NSString *formattedReason__; \178      I_GREYFormattedString(formattedReason__, __reason, ##__VA_ARGS__); \179      I_GREYRegisterFailure(kGREYNotNilException, formattedReason__, @""); \180    } \181  } while(NO)182#define I_GREYAssertNil(__a1, __reason, ...) \183  do { \184    if ((__a1) != nil) { \185      NSString *formattedReason__; \186      I_GREYFormattedString(formattedReason__, __reason, ##__VA_ARGS__); \187      I_GREYRegisterFailure(kGREYNilException, formattedReason__, @""); \188    } \189  } while(NO)190#define I_GREYAssertEqual(__a1, __a2, __reason, ...) \191  do { \192    if ((__a1) != (__a2)) { \193      NSString *formattedReason__; \194      I_GREYFormattedString(formattedReason__, __reason, ##__VA_ARGS__); \195      I_GREYRegisterFailure(kGREYAssertionFailedException, formattedReason__, @""); \196    } \197  } while(NO)198#define I_GREYFail(__reason, ...) \199  NSString *formattedReason__; \200  I_GREYFormattedString(formattedReason__, __reason, ##__VA_ARGS__); \201  I_GREYRegisterFailure(kGREYGenericFailureException, formattedReason__, @"")202#define I_GREYFailWithDetails(__reason, __details, ...)  \203  I_GREYRegisterFailure(kGREYGenericFailureException, __reason, __details, ##__VA_ARGS__)204#define I_GREYTimeout(__reason, __details, ...) \205  I_GREYRegisterFailure(kGREYTimeoutException, __reason, __details, ##__VA_ARGS__)206#define I_GREYActionFail(__reason, __details, ...) \207  I_GREYRegisterFailure(kGREYActionFailedException, __reason, __details, ##__VA_ARGS__)208#define I_GREYAssertionFail(__reason, __details, ...) \209  I_GREYRegisterFailure(kGREYAssertionFailedException, __reason, __details, ##__VA_ARGS__)210#define I_GREYElementNotFound(__reason, __details, ...) \211  I_GREYRegisterFailure(kGREYNoMatchingElementException, __reason, __details, ##__VA_ARGS__)212#define I_GREYMultipleElementsFound(__reason, __details, ...) \213  I_GREYRegisterFailure(kGREYMultipleElementsFoundException, __reason, __details, ##__VA_ARGS__)214#define I_CHECK_MAIN_THREAD() \215  I_GREYAssert([NSThread isMainThread], @"Must be on the main thread.")216/// @endcond...

1GREY_ASSERTION_DEFINES_H.I_GREYFail(@"Test failed");2GREY_ASSERTION_DEFINES_H.I_GREYFail(@"Test failed");3GREY_ASSERTION_DEFINES_H.I_GREYFail(@"Test failed");4GREY_ASSERTION_DEFINES_H.I_GREYFail(@"Test failed");5GREY_ASSERTION_DEFINES_H.I_GREYFail(@"Test failed");6GREY_ASSERTION_DEFINES_H.I_GREYFail(@"Test failed");7GREY_ASSERTION_DEFINES_H.I_GREYFail(@"Test failed");8GREY_ASSERTION_DEFINES_H.I_GREYFail(@"Test failed");9GREY_ASSERTION_DEFINES_H.I_GREYFail(@"Test failed");10GREY_ASSERTION_DEFINES_H.I_GREYFail(@"Test failed");11GREY_ASSERTION_DEFINES_H.I_GREYFail(@"Test failed");12GREY_ASSERTION_DEFINES_H.I_GREYFail(@"Test failed");

1#import "GREYAssertionDefines.h"2+ (void)I_GREYFail:(NSString *)description, ...;3#import "GREYAssertionDefines.h"4+ (void)I_GREYFail:(NSString *)description, ... {5    va_list args;6    va_start(args, description);7    NSString *descriptionString = [[NSString alloc] initWithFormat:description arguments:args];8    va_end(args);9    NSLog(@"I_GREYFail: %@", descriptionString);10}11#import <Foundation/Foundation.h>12+ (void)I_GREYFail:(NSString *)description, ...;13#import "GREYAssertionDefines.h"14+ (void)I_GREYFail:(NSString *)description, ... {15    va_list args;16    va_start(args, description);17    NSString *descriptionString = [[NSString alloc] initWithFormat:description arguments:args];18    va_end(args);19    NSLog(@"I_GREYFail: %@", descriptionString);20}21#import <Foundation/Foundation.h>22+ (void)I_GREYFail:(NSString *)description, ...;23#import "GREYAssertionDefines.h"24+ (void)I_GREYFail:(NSString *)description, ... {25    va_list args;26    va_start(args, description);27    NSString *descriptionString = [[NSString alloc] initWithFormat:description arguments:args];28    va_end(args);29    NSLog(@"I_GREYFail: %@", descriptionString);30}31#import <Foundation/Foundation.h>32+ (void)I_GREYFail:(NSString *)description, ...;33#import "GREYAssertionDefines.h"34+ (void)I_GREYFail:(NSString *)description, ... {35    va_list args;36    va_start(args, description);