First cut at pruning things/updating things.

Remove a bunch of code that Google stopped using/maintaining rather than trying
to update it it. Some would be hard to update, some actually has system provided
replacements; others are patterns that just don't seem as common now.

Prune out the code related to macOS <= 10.5, start pruning some of the really
old iOS support also.

Get the projects mostly limping again with modern Xcodes so tests can be run.

If someone ends up on this commit via history for something they still find
as useful, feel free to do a pull request to bring the snippet of code back to
life and update it for current SDKs.

1 files changed, 0 insertions, 1047 deletions

diff --git a/UnitTesting/GTMNSObject+UnitTesting.m b/UnitTesting/GTMNSObject+UnitTesting.m
deleted file mode 100644
index 5b60a6d..0000000
--- a/UnitTesting/GTMNSObject+UnitTesting.m
+++ /dev/null
@@ -1,1047 +0,0 @@
-//
-//  GTMNSObject+UnitTesting.m
-//
-//  An informal protocol for doing advanced unittesting with objects.
-//
-//  Copyright 2006-2008 Google Inc.
-//
-//  Licensed under the Apache License, Version 2.0 (the "License"); you may not
-//  use this file except in compliance with the License.  You may obtain a copy
-//  of the License at
-//
-//  http://www.apache.org/licenses/LICENSE-2.0
-//
-//  Unless required by applicable law or agreed to in writing, software
-//  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-//  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
-//  License for the specific language governing permissions and limitations under
-//  the License.
-//
-
-#import "GTMNSObject+UnitTesting.h"
-#import "GTMSystemVersion.h"
-
-#if GTM_IPHONE_SDK
-#import <UIKit/UIKit.h>
-#else
-#import <AppKit/AppKit.h>
-#endif
-
-NSString *const GTMUnitTestingEncodedObjectNotification
-  = @"GTMUnitTestingEncodedObjectNotification";
-NSString *const GTMUnitTestingEncoderKey = @"GTMUnitTestingEncoderKey";
-
-#if GTM_IPHONE_SDK
-// No UTIs on iPhone. Only two we need.
-const CFStringRef kUTTypePNG = CFSTR("public.png");
-const CFStringRef kUTTypeJPEG = CFSTR("public.jpeg");
-#endif
-
-// This class exists so that we can locate our bundle using [NSBundle
-// bundleForClass:]. We don't use [NSBundle mainBundle] because when we are
-// being run as a unit test, we aren't the mainBundle
-@interface GTMUnitTestingAdditionsBundleFinder : NSObject {
-  // Nothing here
-}
-// or here
-@end
-
-@implementation GTMUnitTestingAdditionsBundleFinder
-// Nothing here. We're just interested in the name for finding our bundle.
-@end
-
-#if GTM_IPHONE_SDK
-static NSString *iOS_Idiom(void) {
-  UIUserInterfaceIdiom idiom;
-#if __IPHONE_OS_VERSION_MIN_REQUIRED >= __IPHONE_3_2
-  idiom = [[UIDevice currentDevice] userInterfaceIdiom];
-#else
-  idiom = UI_USER_INTERFACE_IDIOM();
-#endif
-  if (idiom == UIUserInterfaceIdiomPad) {
-    return @"iPad";
-  }
-  _GTMDevAssert((idiom == UIUserInterfaceIdiomPhone),
-                @"unknown idiom %zd", idiom);
-  return @"iPhone";
-}
-#endif  // GTM_IPHONE_SDK
-
-BOOL GTMIsObjectImageEqualToImageNamed(id object,
-                                       NSString* filename,
-                                       NSString **error) {
-  NSString *failString = nil;
-  if (error) {
-    *error = nil;
-  }
-  BOOL isGood = [object respondsToSelector:@selector(gtm_unitTestImage)];
-  if (isGood) {
-    if ([object gtm_areSystemSettingsValidForDoingImage]) {
-      NSString *aPath = [object gtm_pathForImageNamed:filename];
-      CGImageRef diff = nil;
-      isGood = aPath != nil;
-      if (isGood) {
-        isGood = [object gtm_compareWithImageAt:aPath diffImage:&diff];
-      }
-      if (!isGood) {
-        if (aPath) {
-          filename = [filename stringByAppendingString:@"_Failed"];
-        }
-        BOOL aSaved = [object gtm_saveToImageNamed:filename];
-        NSString *fileNameWithExtension
-          = [NSString stringWithFormat:@"%@.%@",
-             filename, [object gtm_imageExtension]];
-        NSString *fullSavePath = [object gtm_saveToPathForImageNamed:filename];
-        if (NO == aSaved) {
-          if (!aPath) {
-            failString = [NSString stringWithFormat:@"File %@ did not exist in "
-                          @"bundle. Tried to save as %@ and failed.",
-                          fileNameWithExtension, fullSavePath];
-          } else {
-            failString = [NSString stringWithFormat:@"Object image different "
-                          @"than file %@. Tried to save as %@ and failed.",
-                          aPath, fullSavePath];
-          }
-        } else {
-          if (!aPath) {
-            failString = [NSString stringWithFormat:@"File %@ did not exist in "
-                          @" bundle. Saved to %@", fileNameWithExtension,
-                          fullSavePath];
-          } else {
-            NSString *diffPath = [filename stringByAppendingString:@"_Diff"];
-            diffPath = [object gtm_saveToPathForImageNamed:diffPath];
-            NSData *data = nil;
-            if (diff) {
-              data = [object gtm_imageDataForImage:diff];
-            }
-            if ([data writeToFile:diffPath atomically:YES]) {
-              failString = [NSString stringWithFormat:@"Object image different "
-                            @"than file\n%@\nSaved image to\n%@\n"
-                            @"Saved diff to\n%@\n",
-                            aPath, fullSavePath, diffPath];
-            } else {
-              failString = [NSString stringWithFormat:@"Object image different "
-                            @"than file\n%@\nSaved image to\n%@\nUnable to save "
-                            @"diff. Most likely the image and diff are "
-                            @"different sizes.",
-                            aPath, fullSavePath];
-            }
-          }
-        }
-      }
-      CGImageRelease(diff);
-    } else {
-      failString = @"systemSettings not valid for taking image";  // COV_NF_LINE
-    }
-  } else {
-    if (object == nil) {
-      failString = @"Testing a nil image.";
-    } else {
-      failString = @"Object does not conform to GTMUnitTestingImaging protocol";
-    }
-  }
-  if (error) {
-    *error = failString;
-  }
-  return isGood;
-}
-
-BOOL GTMIsObjectStateEqualToStateNamed(id object,
-                                       NSString* filename,
-                                       NSString **error) {
-  NSString *failString = nil;
-  if (error) {
-    *error = nil;
-  }
-  BOOL isGood = [object conformsToProtocol:@protocol(GTMUnitTestingEncoding)];
-  if (isGood) {
-    NSString *aPath = [object gtm_pathForStateNamed:filename];
-    isGood = aPath != nil;
-    if (isGood) {
-      isGood = [object gtm_compareWithStateAt:aPath];
-    }
-    if (!isGood) {
-      if (aPath) {
-        filename = [filename stringByAppendingString:@"_Failed"];
-      }
-      BOOL aSaved = [object gtm_saveToStateNamed:filename];
-      NSString *fileNameWithExtension = [NSString stringWithFormat:@"%@.%@",
-                                         filename, [object gtm_stateExtension]];
-      NSString *fullSavePath = [object gtm_saveToPathForStateNamed:filename];
-      if (NO == aSaved) {
-        if (!aPath) {
-          failString = [NSString stringWithFormat:@"File %@ did not exist in "
-                        @"bundle. Tried to save as %@ and failed.",
-                        fileNameWithExtension, fullSavePath];
-        } else {
-          failString = [NSString stringWithFormat:@"Object state different "
-                        @"than file %@. Tried to save as %@ and failed.",
-                        aPath, fullSavePath];
-        }
-      } else {
-        if (!aPath) {
-          failString = [NSString stringWithFormat:@"File %@ did not exist in "
-                       @ "bundle. Saved to %@", fileNameWithExtension,
-                        fullSavePath];
-        } else {
-          failString = [NSString stringWithFormat:@"Object state different "
-                        @"than file %@. Saved to %@", aPath, fullSavePath];
-        }
-      }
-    }
-  } else {
-    failString = @"Object does not conform to GTMUnitTestingEncoding protocol";
-  }
-  if (error) {
-    *error = failString;
-  }
-  return isGood;
-}
-
-CGContextRef GTMCreateUnitTestBitmapContextOfSizeWithData(CGSize size,
-                                                          unsigned char **data) {
-  CGContextRef context = NULL;
-  size_t height = size.height;
-  size_t width = size.width;
-  size_t bytesPerRow = width * 4;
-  size_t bitsPerComponent = 8;
-  CGColorSpaceRef cs = NULL;
-#if GTM_IPHONE_SDK
-  cs = CGColorSpaceCreateDeviceRGB();
-#else
-  cs = CGColorSpaceCreateWithName(kCGColorSpaceGenericRGB);
-#endif
-  _GTMDevAssert(cs, @"Couldn't create colorspace");
-  CGBitmapInfo info
-    = kCGImageAlphaPremultipliedLast | kCGBitmapByteOrderDefault;
-  if (data) {
-    *data = (unsigned char*)calloc(bytesPerRow, height);
-    _GTMDevAssert(*data, @"Couldn't create bitmap");
-  }
-  context = CGBitmapContextCreate(data ? *data : NULL, width, height,
-                                  bitsPerComponent, bytesPerRow, cs, info);
-  _GTMDevAssert(context, @"Couldn't create an context");
-  if (!data) {
-    CGContextClearRect(context, CGRectMake(0, 0, size.width, size.height));
-  }
-  CGContextSetRenderingIntent(context, kCGRenderingIntentRelativeColorimetric);
-  CGContextSetInterpolationQuality(context, kCGInterpolationNone);
-  CGContextSetShouldAntialias(context, NO);
-  CGContextSetAllowsAntialiasing(context, NO);
-  CGContextSetShouldSmoothFonts(context, NO);
-  CGColorSpaceRelease(cs);
-  return context;
-}
-
-@interface NSObject (GTMUnitTestingAdditionsPrivate)
-///  Find the path for a file named name.extension in your bundle.
-//  Searches for the following:
-//  "name.extension",
-//  "name.arch.extension",
-//  "name.arch.OSVersionMajor.extension"
-//  "name.arch.OSVersionMajor.OSVersionMinor.extension"
-//  "name.arch.OSVersionMajor.OSVersionMinor.OSVersion.bugfix.extension"
-//  "name.arch.OSVersionMajor.extension"
-//  "name.OSVersionMajor.arch.extension"
-//  "name.OSVersionMajor.OSVersionMinor.arch.extension"
-//  "name.OSVersionMajor.OSVersionMinor.OSVersion.bugfix.arch.extension"
-//  "name.OSVersionMajor.extension"
-//  "name.OSVersionMajor.OSVersionMinor.extension"
-//  "name.OSVersionMajor.OSVersionMinor.OSVersion.bugfix.extension"
-//  Do not include the ".extension" extension on your name.
-//
-//  Args:
-//    name: The name for the file you would like to find.
-//    extension: the extension for the file you would like to find
-//
-//  Returns:
-//    the path if the file exists in your bundle
-//    or nil if no file is found
-//
-- (NSString *)gtm_pathForFileNamed:(NSString*)name
-                         extension:(NSString*)extension;
-- (NSString *)gtm_saveToPathForFileNamed:(NSString*)name
-                               extension:(NSString*)extension;
-- (CGImageRef)gtm_unitTestImage;
-// Returns nil if there is no override
-- (NSString *)gtm_getOverrideDefaultUnitTestSaveToDirectory;
-@end
-
-// This is a keyed coder for storing unit test state data. It is used only by
-// the GTMUnitTestingAdditions category. Most of the work is done in
-// encodeObject:forKey:.
-@interface GTMUnitTestingKeyedCoder : NSCoder {
-  NSMutableDictionary *dictionary_; // storage for data (STRONG)
-}
-
-//  get the data stored in coder.
-//
-//  Returns:
-//    NSDictionary with currently stored data.
-- (NSDictionary*)dictionary;
-@end
-
-// Small utility function for checking to see if a is b +/- 1.
-GTM_INLINE BOOL almostEqual(unsigned char a, unsigned char b) {
-  unsigned char diff = a > b ? a - b : b - a;
-  BOOL notEqual = diff < 2;
-  return notEqual;
-}
-
-@implementation GTMUnitTestingKeyedCoder
-
-//  Set up storage for coder. Stores type and version.
-//  Version 1
-//
-//  Returns:
-//    self
-- (id)init {
-  self = [super init];
-  if (self != nil) {
-    dictionary_ = [[NSMutableDictionary alloc] initWithCapacity:2];
-    [dictionary_ setObject:@"GTMUnitTestingArchive" forKey:@"$GTMArchive"];
-
-    // Version number can be changed here.
-    [dictionary_ setObject:[NSNumber numberWithInt:1] forKey:@"$GTMVersion"];
-  }
-  return self;
-}
-
-// Standard dealloc
-- (void)dealloc {
-  [dictionary_ release];
-  [super dealloc];
-}
-
-// Utility function for checking for a key value. We don't want duplicate keys
-// in any of our dictionaries as we may be writing over data stored by previous
-// objects.
-//
-//  Arguments:
-//    key - key to check for in dictionary
-- (void)checkForKey:(NSString*)key {
-  _GTMDevAssert(![dictionary_ objectForKey:key],
-                @"Key already exists for %@", key);
-}
-
-// Key routine for the encoder. We store objects in our dictionary based on
-// their key. As we encode objects we send out notifications to let other
-// classes doing tests add their specific data to the base types. If we can't
-// encode the object (it doesn't support gtm_unitTestEncodeState) and we don't
-// get any info back from the notifier, we attempt to store it's description.
-//
-//  Arguments:
-//    objv - object to be encoded
-//    key - key to encode it with
-//
-- (void)encodeObject:(id)objv forKey:(NSString *)key {
-  // Sanity checks
-  if (!objv) return;
-  [self checkForKey:key];
-
-  // Set up a new dictionary for the current object
-  NSMutableDictionary *curDictionary = dictionary_;
-  dictionary_ = [[NSMutableDictionary alloc] initWithCapacity:0];
-
-  // If objv responds to gtm_unitTestEncodeState get it to record
-  // its data.
-  if ([objv respondsToSelector:@selector(gtm_unitTestEncodeState:)]) {
-    [objv gtm_unitTestEncodeState:self];
-  }
-
-  // We then send out a notification to let other folks
-  // add data for this object
-  NSDictionary *notificationDict
-    = [NSDictionary dictionaryWithObject:self forKey:GTMUnitTestingEncoderKey];
-  NSNotificationCenter *nc = [NSNotificationCenter defaultCenter];
-  [nc postNotificationName:GTMUnitTestingEncodedObjectNotification
-                    object:objv
-                  userInfo:notificationDict];
-
-  // If we got anything from the object, or from the notification, store it in
-  // our dictionary. Otherwise store the description.
-  if ([dictionary_ count] > 0) {
-    [curDictionary setObject:dictionary_ forKey:key];
-  } else {
-    NSString *description = [objv description];
-    // If description has a pointer value in it, we don't want to store it
-    // as the pointer value can change from run to run
-    if (description && [description rangeOfString:@"0x"].length == 0) {
-      [curDictionary setObject:description forKey:key];
-    } else {
-      _GTMDevAssert(NO, @"Unable to encode forKey: %@", key);  // COV_NF_LINE
-    }
-  }
-  [dictionary_ release];
-  dictionary_ = curDictionary;
-}
-
-//  Basic encoding methods for POD types.
-//
-//  Arguments:
-//    *v - value to encode
-//    key - key to encode it in
-
-- (void)encodeBool:(BOOL)boolv forKey:(NSString *)key {
-  [self checkForKey:key];
-  [dictionary_ setObject:[NSNumber numberWithBool:boolv] forKey:key];
-}
-
-- (void)encodeInt:(int)intv forKey:(NSString *)key {
-  [self checkForKey:key];
-  [dictionary_ setObject:[NSNumber numberWithInt:intv] forKey:key];
-}
-
-- (void)encodeInt32:(int32_t)intv forKey:(NSString *)key {
-  [self checkForKey:key];
-  [dictionary_ setObject:[NSNumber numberWithLong:intv] forKey:key];
-}
-
-- (void)encodeInt64:(int64_t)intv forKey:(NSString *)key {
-  [self checkForKey:key];
-  [dictionary_ setObject:[NSNumber numberWithLongLong:intv] forKey:key];
-}
-
-- (void)encodeFloat:(float)realv forKey:(NSString *)key {
-  [self checkForKey:key];
-  [dictionary_ setObject:[NSNumber numberWithFloat:realv] forKey:key];
-}
-
-- (void)encodeDouble:(double)realv forKey:(NSString *)key {
-  [self checkForKey:key];
-  [dictionary_ setObject:[NSNumber numberWithDouble:realv] forKey:key];
-}
-
-- (void)encodeBytes:(const uint8_t *)bytesp
-             length:(NSUInteger)lenv
-             forKey:(NSString *)key {
-  [self checkForKey:key];
-  [dictionary_ setObject:[NSData dataWithBytes:bytesp
-                                        length:lenv]
-                  forKey:key];
-}
-
-//  Get our storage back as an NSDictionary
-//
-//  Returns:
-//    NSDictionary containing our encoded info
--(NSDictionary*)dictionary {
-  return [[dictionary_ retain] autorelease];
-}
-
-@end
-
-static NSString *gGTMUnitTestSaveToDirectory = nil;
-
-@implementation NSObject (GTMUnitTestingAdditions)
-
-+ (void)gtm_setUnitTestSaveToDirectory:(NSString*)path {
-  @synchronized([self class]) {
-    [gGTMUnitTestSaveToDirectory autorelease];
-    gGTMUnitTestSaveToDirectory = [path copy];
-  }
-}
-
-+ (NSString *)gtm_getUnitTestSaveToDirectory {
-  NSString *result = nil;
-  @synchronized([self class]) {
-    if (!gGTMUnitTestSaveToDirectory) {
-#if GTM_IPHONE_SDK
-      // About the only thing safe for the sandbox is the documents directory.
-      NSArray *documentsDirs
-        = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,
-                                              NSUserDomainMask, YES);
-      gGTMUnitTestSaveToDirectory = [documentsDirs objectAtIndex:0];
-#else
-      NSArray *desktopDirs
-        = NSSearchPathForDirectoriesInDomains(NSDesktopDirectory,
-                                              NSUserDomainMask,
-                                              YES);
-      gGTMUnitTestSaveToDirectory = [desktopDirs objectAtIndex:0];
-#endif
-      // Did we get overridden?
-      NSString *override = [self gtm_getOverrideDefaultUnitTestSaveToDirectory];
-      if (override) {
-        gGTMUnitTestSaveToDirectory = override;
-      }
-      [gGTMUnitTestSaveToDirectory retain];
-    }
-    result = gGTMUnitTestSaveToDirectory;
-  }
-
-  return result;
-}
-
-// Return nil if there is no override
-- (NSString *)gtm_getOverrideDefaultUnitTestSaveToDirectory {
-  NSString *result = nil;
-
-  // If we have an environment variable that ends in "BUILD_NUMBER" odds are
-  // we're on an automated build system, so use the build products dir as an
-  // override instead of writing on the desktop.
-  NSDictionary *env = [[NSProcessInfo processInfo] environment];
-  NSString *key;
-  GTM_FOREACH_KEY(key, env) {
-    if ([key hasSuffix:@"BUILD_NUMBER"]) {
-      break;
-    }
-  }
-  if (key) {
-    result = [env objectForKey:@"BUILT_PRODUCTS_DIR"];
-  }
-
-  if (result && [result length] == 0) {
-    result = nil;
-  }
-  return result;
-}
-
-///  Find the path for a file named name.extension in your bundle.
-//  Searches for the following:
-//  "name.CompilerSDK.OSVersionMajor.OSVersionMinor.OSVersionBugFix.arch.extension"
-//  "name.CompilerSDK.OSVersionMajor.OSVersionMinor.arch.extension"
-//  "name.CompilerSDK.OSVersionMajor.arch.extension"
-//  "name.CompilerSDK.arch.extension"
-//  "name.CompilerSDK.OSVersionMajor.OSVersionMinor.OSVersionBugFix.extension"
-//  "name.CompilerSDK.OSVersionMajor.OSVersionMinor.extension"
-//  "name.CompilerSDK.OSVersionMajor.extension"
-//  "name.CompilerSDK.extension"
-//  "name.OSVersionMajor.OSVersionMinor.OSVersionBugFix.arch.extension"
-//  "name.OSVersionMajor.OSVersionMinor.arch.extension"
-//  "name.OSVersionMajor.arch.extension"
-//  "name.arch.extension"
-//  "name.OSVersionMajor.OSVersionMinor.OSVersionBugFix.extension"
-//  "name.OSVersionMajor.OSVersionMinor.extension"
-//  "name.OSVersionMajor.extension"
-//  "name.extension"
-//  Do not include the ".extension" extension on your name.
-//
-//  Args:
-//    name: The name for the file you would like to find.
-//    extension: the extension for the file you would like to find
-//
-//  Returns:
-//    the path if the file exists in your bundle
-//    or nil if no file is found
-//
-- (NSString *)gtm_pathForFileNamed:(NSString*)name
-                         extension:(NSString*)extension {
-  NSString *thePath = nil;
-  Class bundleClass = [GTMUnitTestingAdditionsBundleFinder class];
-  NSBundle *myBundle = [NSBundle bundleForClass:bundleClass];
-  _GTMDevAssert(myBundle,
-                @"Couldn't find bundle for class: %@ searching for file:%@.%@",
-                NSStringFromClass(bundleClass), name, extension);
-  // System Version
-  SInt32 major, minor, bugFix;
-  [GTMSystemVersion getMajor:&major minor:&minor bugFix:&bugFix];
-  NSString *systemVersions[4];
-  systemVersions[0] = [NSString stringWithFormat:@".%d.%d.%d",
-                       (int)major, (int)minor, (int)bugFix];
-  systemVersions[1]
-      = [NSString stringWithFormat:@".%d.%d", (int)major, (int)minor];
-  systemVersions[2] = [NSString stringWithFormat:@".%d", (int)major];
-  systemVersions[3] = @"";
-  // Architecture
-  NSString *architecture[2];
-#if GTM_IPHONE_SDK
-  architecture[0]
-    = [NSString stringWithFormat:@".%@", iOS_Idiom()];
-#else
-  architecture[0]
-    = [NSString stringWithFormat:@".%@",
-       [GTMSystemVersion runtimeArchitecture]];
-#endif
-  architecture[1] = @"";
-  // Compiler SDK
-  // Some times Apple changes how things work based on the SDK built against.
-  NSString *sdks[2];
-#if GTM_MACOS_SDK
-# if MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_7
-  sdks[0] = @".10_7_SDK";
-# elif MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_6
-  sdks[0] = @".10_6_SDK";
-# elif MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_5
-  sdks[0] = @".10_5_SDK";
-# elif MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_4
-  sdks[0] = @".10_4_SDK";
-# elif MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_3
-  sdks[0] = @".10_3_SDK";
-# elif MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_2
-  sdks[0] = @".10_2_SDK";
-# elif MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_1
-  sdks[0] = @".10_1_SDK";
-# else
-  sdks[0] = @".10_0_SDK";
-# endif
-#else  // !GTM_MACOS_SDK
-# if __IPHONE_OS_VERSION_MAX_ALLOWED >= __IPHONE_5_0
-  sdks[0] = @".5_0_SDK";
-# elif __IPHONE_OS_VERSION_MAX_ALLOWED >= __IPHONE_4_3
-  sdks[0] = @".4_3_SDK";
-# else
-  sdks[0] = @"";
-# endif
-#endif  // GTM_MACOS_SDK
-  sdks[1] = @"";
-
-  // Note that we are searching for the most exact match first.
-  for (size_t i = 0;
-       !thePath && i < sizeof(sdks) / sizeof(*sdks);
-       ++i) {
-    for (size_t j = 0;
-         !thePath && j < sizeof(architecture) / sizeof(*architecture);
-         j++) {
-      for (size_t k = 0;
-           !thePath && k < sizeof(systemVersions) / sizeof(*systemVersions);
-           k++) {
-        NSString *fullName = [NSString stringWithFormat:@"%@%@%@%@",
-                    name, sdks[i], systemVersions[k], architecture[j]];
-        thePath = [myBundle pathForResource:fullName ofType:extension];
-      }
-    }
-  }
-
-  return thePath;
-}
-
-- (NSString *)gtm_saveToPathForFileNamed:(NSString*)name
-                               extension:(NSString*)extension {
-#if GTM_IPHONE_SDK
-  NSString *systemArchitecture = iOS_Idiom();
-#else
-  NSString *systemArchitecture = [GTMSystemVersion runtimeArchitecture];
-#endif
-
-  SInt32 major, minor, bugFix;
-  [GTMSystemVersion getMajor:&major minor:&minor bugFix:&bugFix];
-
-  // We don't include the CompilerSDK in here because it is not something that
-  // that is commonly needed.
-  NSString *fullName = [NSString stringWithFormat:@"%@.%d.%d.%d.%@",
-    name, (int)major, (int)minor, (int)bugFix, systemArchitecture];
-
-  NSString *basePath = [[self class] gtm_getUnitTestSaveToDirectory];
-  return [[basePath stringByAppendingPathComponent:fullName]
-          stringByAppendingPathExtension:extension];
-}
-
-#pragma mark UnitTestImage
-
-// Checks to see that system settings are valid for doing an image comparison.
-// To be overridden by subclasses.
-// Returns:
-//  YES if we can do image comparisons for this object type.
-- (BOOL)gtm_areSystemSettingsValidForDoingImage {
-  return YES;
-}
-
-- (CFStringRef)gtm_imageUTI {
-#if GTM_IPHONE_SDK
-  return kUTTypePNG;
-#else
-  // Currently can't use PNG on Leopard. (10.5.2)
-  // Radar:5844618 PNG importer/exporter in ImageIO is lossy
-  return kUTTypeTIFF;
-#endif
-}
-
-// Return the extension to be used for saving unittest images
-//
-// Returns
-//  An extension (e.g. "png")
-- (NSString*)gtm_imageExtension {
-  CFStringRef uti = [self gtm_imageUTI];
-#if GTM_IPHONE_SDK
-  if (CFEqual(uti, kUTTypePNG)) {
-    return @"png";
-  } else if (CFEqual(uti, kUTTypeJPEG)) {
-    return @"jpg";
-  } else {
-    _GTMDevAssert(NO, @"Illegal UTI for iPhone");
-  }
-  return nil;
-#else
-  CFStringRef extension
-    = UTTypeCopyPreferredTagWithClass(uti, kUTTagClassFilenameExtension);
-  _GTMDevAssert(extension, @"No extension for uti: %@", uti);
-
-  return GTMCFAutorelease(extension);
-#endif
-}
-
-// Return image data in the format expected for gtm_imageExtension
-// So for a "png" extension I would expect "png" data
-//
-// Returns
-//  NSData for image
-- (NSData*)gtm_imageDataForImage:(CGImageRef)image {
-  NSData *data = nil;
-#if GTM_IPHONE_SDK
-  // iPhone support
-  UIImage *uiImage = [UIImage imageWithCGImage:image];
-  CFStringRef uti = [self gtm_imageUTI];
-  if (CFEqual(uti, kUTTypePNG)) {
-    data = UIImagePNGRepresentation(uiImage);
-  } else if (CFEqual(uti, kUTTypeJPEG)) {
-    data = UIImageJPEGRepresentation(uiImage, 1.0f);
-  } else {
-    _GTMDevAssert(NO, @"Illegal UTI for iPhone");
-  }
-#else
-  data = [NSMutableData data];
-  CGImageDestinationRef dest
-    = CGImageDestinationCreateWithData((CFMutableDataRef)data,
-                                       [self gtm_imageUTI],
-                                       1,
-                                       NULL);
-  // LZW Compression for TIFF
-  NSDictionary *tiffDict
-    = [NSDictionary dictionaryWithObjectsAndKeys:
-       [NSNumber gtm_numberWithUnsignedInteger:NSTIFFCompressionLZW],
-       (const NSString*)kCGImagePropertyTIFFCompression,
-       nil];
-  NSDictionary *destProps
-    = [NSDictionary dictionaryWithObjectsAndKeys:
-       [NSNumber numberWithFloat:1.0f],
-       (const NSString*)kCGImageDestinationLossyCompressionQuality,
-       tiffDict,
-       (const NSString*)kCGImagePropertyTIFFDictionary,
-       nil];
-  CGImageDestinationAddImage(dest, image, (CFDictionaryRef)destProps);
-  CGImageDestinationFinalize(dest);
-  CFRelease(dest);
-#endif
-  return data;
-
-}
-
-// Save the unitTestImage to an image file with name |name| at
-// ~/Desktop/|name|.extension.
-//
-//  Note: When running under Pulse automation output is redirected to the
-//  Pulse base directory.
-//
-//  Args:
-//    name: The name for the image file you would like saved.
-//
-//  Returns:
-//    YES if the file was successfully saved.
-//
-- (BOOL)gtm_saveToImageNamed:(NSString*)name {
-  NSString *newPath = [self gtm_saveToPathForImageNamed:name];
-  return [self gtm_saveToImageAt:newPath];
-}
-
-//  Save unitTestImage of |self| to an image file at path |path|.
-//
-//  Args:
-//    name: The name for the image file you would like saved.
-//
-//  Returns:
-//    YES if the file was successfully saved.
-//
-- (BOOL)gtm_saveToImageAt:(NSString*)path {
-  if (!path) return NO;
-  NSData *data = [self gtm_imageRepresentation];
-  return [data writeToFile:path atomically:YES];
-}
-
-// Generates a CGImageRef from the image at |path|
-// Args:
-//  path: The path to the image.
-//
-// Returns:
-//  A CGImageRef that you own, or nil if no image at path
-- (CGImageRef)gtm_imageWithContentsOfFile:(NSString*)path {
-  CGImageRef imageRef = nil;
-#if GTM_IPHONE_SDK
-  UIImage *image = [UIImage imageWithContentsOfFile:path];
-  if (image) {
-    imageRef = CGImageRetain(image.CGImage);
-  }
-#else
-  CFURLRef url = CFURLCreateWithFileSystemPath(NULL, (CFStringRef)path,
-                                               kCFURLPOSIXPathStyle, NO);
-  if (url) {
-    CGImageSourceRef imageSource = CGImageSourceCreateWithURL(url, NULL);
-    CFRelease(url);
-    if (imageSource) {
-      imageRef = CGImageSourceCreateImageAtIndex(imageSource, 0, NULL);
-      CFRelease(imageSource);
-    }
-  }
-#endif
-  return (CGImageRef)GTMCFAutorelease(imageRef);
-}
-
-///  Compares unitTestImage of |self| to the image located at |path|
-//
-//  Args:
-//    path: the path to the image file you want to compare against.
-//    If diff is non-nil, it will contain an auto-released diff of the images.
-//
-//  Returns:
-//    YES if they are equal, NO is they are not
-//    If diff is non-nil, it will contain an auto-released diff of the images.
-//
-- (BOOL)gtm_compareWithImageAt:(NSString*)path diffImage:(CGImageRef*)diff {
-  BOOL answer = NO;
-  if (diff) {
-    *diff = nil;
-  }
-  CGImageRef fileRep = [self gtm_imageWithContentsOfFile:path];
-  _GTMDevAssert(fileRep, @"Unable to create imagerep from %@", path);
-
-  CGImageRef imageRep = [self gtm_unitTestImage];
-  _GTMDevAssert(imageRep, @"Unable to create imagerep for %@", self);
-
-  size_t fileHeight = CGImageGetHeight(fileRep);
-  size_t fileWidth = CGImageGetWidth(fileRep);
-  size_t imageHeight = CGImageGetHeight(imageRep);
-  size_t imageWidth = CGImageGetWidth(imageRep);
-  if (fileHeight == imageHeight && fileWidth == imageWidth) {
-    // if all the sizes are equal, run through the bytes and compare
-    // them for equality.
-    // Do an initial fast check, if this fails and the caller wants a
-    // diff, we'll do the slow path and create the diff. The diff path
-    // could be optimized, but probably not necessary at this point.
-    answer = YES;
-
-    CGSize imageSize = CGSizeMake(fileWidth, fileHeight);
-    CGRect imageRect = CGRectMake(0, 0, fileWidth, fileHeight);
-    unsigned char *fileData;
-    unsigned char *imageData;
-    CGContextRef fileContext
-      = GTMCreateUnitTestBitmapContextOfSizeWithData(imageSize, &fileData);
-    _GTMDevAssert(fileContext, @"Unable to create filecontext");
-    CGContextDrawImage(fileContext, imageRect, fileRep);
-    CGContextRef imageContext
-      = GTMCreateUnitTestBitmapContextOfSizeWithData(imageSize, &imageData);
-    _GTMDevAssert(imageContext, @"Unable to create imageContext");
-    CGContextDrawImage(imageContext, imageRect, imageRep);
-
-    size_t fileBytesPerRow = CGBitmapContextGetBytesPerRow(fileContext);
-    size_t imageBytesPerRow = CGBitmapContextGetBytesPerRow(imageContext);
-    size_t row, col;
-
-    _GTMDevAssert(imageWidth * 4 <= imageBytesPerRow,
-                  @"We expect image data to be 32bit RGBA");
-
-    for (row = 0; row < fileHeight && answer; row++) {
-      answer = memcmp(fileData + fileBytesPerRow * row,
-                      imageData + imageBytesPerRow * row,
-                      imageWidth * 4) == 0;
-    }
-    if (!answer && diff) {
-      answer = YES;
-      unsigned char *diffData;
-      CGContextRef diffContext
-        = GTMCreateUnitTestBitmapContextOfSizeWithData(imageSize, &diffData);
-      _GTMDevAssert(diffContext, @"Can't make diff context");
-      size_t diffRowBytes = CGBitmapContextGetBytesPerRow(diffContext);
-      for (row = 0; row < imageHeight; row++) {
-        uint32_t *imageRow = (uint32_t*)(imageData + imageBytesPerRow * row);
-        uint32_t *fileRow = (uint32_t*)(fileData + fileBytesPerRow * row);
-        uint32_t* diffRow = (uint32_t*)(diffData + diffRowBytes * row);
-        for (col = 0; col < imageWidth; col++) {
-          uint32_t imageColor = imageRow[col];
-          uint32_t fileColor = fileRow[col];
-
-          unsigned char imageAlpha = imageColor & 0xF;
-          unsigned char imageBlue = imageColor >> 8 & 0xF;
-          unsigned char imageGreen = imageColor >> 16 & 0xF;
-          unsigned char imageRed = imageColor >> 24 & 0xF;
-          unsigned char fileAlpha = fileColor & 0xF;
-          unsigned char fileBlue = fileColor >> 8 & 0xF;
-          unsigned char fileGreen = fileColor >> 16 & 0xF;
-          unsigned char fileRed = fileColor >> 24 & 0xF;
-
-          // Check to see if color is almost right.
-          // No matter how hard I've tried, I've still gotten occasionally
-          // screwed over by colorspaces not mapping correctly, and small
-          // sampling errors coming in. This appears to work for most cases.
-          // Almost equal is defined to check within 1% on all components.
-          BOOL equal = almostEqual(imageRed, fileRed) &&
-          almostEqual(imageGreen, fileGreen) &&
-          almostEqual(imageBlue, fileBlue) &&
-          almostEqual(imageAlpha, fileAlpha);
-          answer &= equal;
-          if (diff) {
-            uint32_t newColor;
-            if (equal) {
-              newColor = (((uint32_t)imageRed) << 24) +
-              (((uint32_t)imageGreen) << 16) +
-              (((uint32_t)imageBlue) << 8) +
-              (((uint32_t)imageAlpha) / 2);
-            } else {
-              newColor = 0xFF0000FF;
-            }
-            diffRow[col] = newColor;
-          }
-        }
-      }
-      *diff = CGBitmapContextCreateImage(diffContext);
-      free(diffData);
-      CFRelease(diffContext);
-    }
-    free(fileData);
-    CFRelease(fileContext);
-    free(imageData);
-    CFRelease(imageContext);
-  }
-  return answer;
-}
-
-//  Find the path for an image by name in your bundle.
-//  Do not include the extension on your name.
-//
-//  Args:
-//    name: The name for the image file you would like to find.
-//
-//  Returns:
-//    the path if the image exists in your bundle
-//    or nil if no image to be found
-//
-- (NSString *)gtm_pathForImageNamed:(NSString*)name {
-  return [self gtm_pathForFileNamed:name
-                          extension:[self gtm_imageExtension]];
-}
-
-- (NSString *)gtm_saveToPathForImageNamed:(NSString*)name {
-  return [self gtm_saveToPathForFileNamed:name
-                                extension:[self gtm_imageExtension]];
-}
-
-//  Gives us a representation of unitTestImage of |self|.
-//
-//  Returns:
-//    a representation of image if successful
-//    nil if failed
-//
-- (NSData *)gtm_imageRepresentation {
-  CGImageRef imageRep = [self gtm_unitTestImage];
-  NSData *data = [self gtm_imageDataForImage:imageRep];
-  _GTMDevAssert(data, @"unable to create %@ from %@",
-                [self gtm_imageExtension], self);
-  return data;
-}
-
-#pragma mark UnitTestState
-
-// Return the extension to be used for saving unittest states
-//
-// Returns
-//  An extension (e.g. "gtmUTState")
-- (NSString*)gtm_stateExtension {
-  return @"gtmUTState";
-}
-
-//  Save the encoded unit test state to a state file with name |name| at
-//  ~/Desktop/|name|.extension.
-//
-//  Note: When running under Pulse automation output is redirected to the
-//  Pulse base directory.
-//
-//  Args:
-//    name: The name for the state file you would like saved.
-//
-//  Returns:
-//    YES if the file was successfully saved.
-//
-- (BOOL)gtm_saveToStateNamed:(NSString*)name {
-  NSString *newPath = [self gtm_saveToPathForStateNamed:name];
-  return [self gtm_saveToStateAt:newPath];
-}
-
-//  Save encoded unit test state of |self| to a state file at path |path|.
-//
-//  Args:
-//    name: The name for the state file you would like saved.
-//
-//  Returns:
-//    YES if the file was successfully saved.
-//
-- (BOOL)gtm_saveToStateAt:(NSString*)path {
-  if (!path) return NO;
-  NSDictionary *dictionary = [self gtm_stateRepresentation];
-  return [dictionary writeToFile:path atomically:YES];
-}
-
-//  Compares encoded unit test state of |self| to the state file located at
-//  |path|
-//
-//  Args:
-//    path: the path to the state file you want to compare against.
-//
-//  Returns:
-//    YES if they are equal, NO is they are not
-//
-- (BOOL)gtm_compareWithStateAt:(NSString*)path {
-  NSDictionary *masterDict = [NSDictionary dictionaryWithContentsOfFile:path];
-  _GTMDevAssert(masterDict, @"Unable to create dictionary from %@", path);
-  NSDictionary *selfDict = [self gtm_stateRepresentation];
-  return [selfDict isEqual: masterDict];
-}
-
-//  Find the path for a state by name in your bundle.
-//  Do not include the extension.
-//
-//  Args:
-//    name: The name for the state file you would like to find.
-//
-//  Returns:
-//    the path if the state exists in your bundle
-//    or nil if no state to be found
-//
-- (NSString *)gtm_pathForStateNamed:(NSString*)name {
-  return [self gtm_pathForFileNamed:name extension:[self gtm_stateExtension]];
-}
-
-- (NSString *)gtm_saveToPathForStateNamed:(NSString*)name {
-  return [self gtm_saveToPathForFileNamed:name
-                                extension:[self gtm_stateExtension]];
-}
-
-//  Gives us the encoded unit test state |self|
-//
-//  Returns:
-//    the encoded state if successful
-//    nil if failed
-//
-- (NSDictionary *)gtm_stateRepresentation {
-  NSDictionary *dictionary = nil;
-  if ([self conformsToProtocol:@protocol(GTMUnitTestingEncoding)]) {
-    id<GTMUnitTestingEncoding> encoder = (id<GTMUnitTestingEncoding>)self;
-    GTMUnitTestingKeyedCoder *archiver;
-    archiver = [[[GTMUnitTestingKeyedCoder alloc] init] autorelease];
-    [encoder gtm_unitTestEncodeState:archiver];
-    dictionary = [archiver dictionary];
-  }
-  return dictionary;
-}
-
-//  Encodes the state of an object in a manner suitable for comparing
-//  against a master state file so we can determine whether the
-//  object is in a suitable state. Encode data in the coder in the same
-//  manner that you would encode data in any other Keyed NSCoder subclass.
-//
-//  Arguments:
-//    inCoder - the coder to encode our state into
-- (void)gtm_unitTestEncodeState:(NSCoder*)inCoder {
-  // All impls of gtm_unitTestEncodeState
-  // should be calling [super gtm_unitTestEncodeState] as their first action.
-  _GTMDevAssert([inCoder isKindOfClass:[GTMUnitTestingKeyedCoder class]],
-                @"Coder must be of kind GTMUnitTestingKeyedCoder");
-
-  // If the object has a delegate, give it a chance to respond
-  if ([self respondsToSelector:@selector(delegate)]) {
-    id delegate = [self performSelector:@selector(delegate)];
-    if (delegate &&
-        [delegate respondsToSelector:@selector(gtm_unitTestEncoderWillEncode:inCoder:)]) {
-      [delegate gtm_unitTestEncoderWillEncode:self inCoder:inCoder];
-    }
-  }
-}
-
-@end