--- a/RegressionTests__CollectionTests.st	Mon Jan 09 10:23:25 2006 +0100
+++ b/RegressionTests__CollectionTests.st	Mon Jan 23 22:21:35 2006 +0100
@@ -3,7 +3,7 @@
 "{ NameSpace: RegressionTests }"
 
 TestCase subclass:#CollectionTests
-	instanceVariableNames:''
+	instanceVariableNames:'empty nonEmpty'
 	classVariableNames:''
 	poolDictionaries:''
 	category:'tests-Regression'
@@ -37,6 +37,13 @@
     "Created: / 8.11.2001 / 08:17:09 / cg"
 ! !
 
+!CollectionTests methodsFor:'initialize-release'!
+
+setUp
+	empty := Set new.
+	nonEmpty := OrderedCollection with: #x
+! !
+
 !CollectionTests methodsFor:'tests-dictionary'!
 
 testDictionary01
@@ -307,6 +314,41 @@
     "
 ! !
 
+!CollectionTests methodsFor:'tests-squeak'!
+
+testIfEmptyifNotEmpty
+	self assert: (empty ifEmpty: [true] ifNotEmpty: [false]).
+	self assert: (nonEmpty ifEmpty: [false] ifNotEmpty: [true]).
+	self assert: (nonEmpty ifEmpty: [false] ifNotEmpty: [:s | s first = #x])
+!
+
+testIfEmptyifNotEmptyDo
+	self assert: (empty ifEmpty: [true] ifNotEmptyDo: [:s | false]).
+	self assert: (nonEmpty ifEmpty: [false] ifNotEmptyDo: [:s | s first = #x])
+!
+
+testIfNotEmpty
+	empty ifNotEmpty: [self assert: false].
+	self assert: (nonEmpty ifNotEmpty: [self]) == self.
+	self assert: (nonEmpty ifNotEmpty: [:s | s first]) = #x
+!
+
+testIfNotEmptyDo
+	empty ifNotEmptyDo: [:s | self assert: false].
+	self assert: (nonEmpty ifNotEmptyDo: [:s | s first]) = #x
+!
+
+testIfNotEmptyDoifNotEmpty
+	self assert: (empty ifNotEmptyDo: [:s | false] ifEmpty: [true]).
+	self assert: (nonEmpty ifNotEmptyDo: [:s | s first = #x] ifEmpty: [false])
+!
+
+testIfNotEmptyifEmpty
+	self assert: (empty ifEmpty: [true] ifNotEmpty: [false]).
+	self assert: (nonEmpty ifEmpty: [false] ifNotEmpty: [true]).
+	self assert: (nonEmpty ifEmpty: [false] ifNotEmpty: [:s | s first = #x])
+! !
+
 !CollectionTests::SortTestData methodsFor:'accessing'!
 
 value