diff --git a/src/Containers-Queue-Tests/CTQueueTest.class.st b/src/Containers-Queue-Tests/CTQueueTest.class.st
index 702a3be..e3604a4 100644
--- a/src/Containers-Queue-Tests/CTQueueTest.class.st
+++ b/src/Containers-Queue-Tests/CTQueueTest.class.st
@@ -268,6 +268,47 @@ CTQueueTest >> testEnqueueSingleElement [
 	self assert: queue front equals: 'first'
 ]
 
+{ #category : 'tests' }
+CTQueueTest >> testEnqueueUnlessAdds [
+	queue enqueue: 1 unless: [ :v | (v rem: 2) = 0 ].
+	self assert: (queue includes: 1).
+	self assert: queue size equals: 1.
+	
+	queue enqueue: 2 unless: [ :v | (v rem: 2) = 0 ].
+	self assert: (queue includes: 1).
+	self assert: (queue includes: 2).
+	self assert: queue size equals: 2.
+]
+
+{ #category : 'tests' }
+CTQueueTest >> testEnqueueUnlessIgnores [
+	queue enqueue: 1 unless: [ :v | (v rem: 2) = 0 ].
+	queue enqueue: 2 unless: [ :v | (v rem: 2) = 0 ].
+	
+	queue enqueue: 4 unless: [ :v | (v rem: 2) = 0 ].
+	self assert: (queue includes: 1).
+	self assert: (queue includes: 2).
+	self assert: queue size equals: 2.
+	
+	queue enqueue: 3 unless: [ :v | (v rem: 2) = 0 ].
+	self assert: (queue includes: 1).
+	self assert: (queue includes: 2).
+	self assert: queue size equals: 2.
+]
+
+{ #category : 'tests' }
+CTQueueTest >> testEquality [
+	| q1 q2 |
+	q1 := CTQueue new.
+	q2 := CTQueue new.
+	
+	q1 enqueue: 'A'; enqueue: 'B'.
+	q2 enqueue: 'A'; enqueue: 'B'.
+	
+	self assert: q1 equals: q2.
+	self assert: q1 hash equals: q2 hash.
+]
+
 { #category : 'tests' }
 CTQueueTest >> testErrorHandling [
 
@@ -421,22 +462,3 @@ CTQueueTest >> testSize [
 	queue dequeue.
 	self assert: queue size equals: 2
 ]
-
-{ #category : 'tests' }
-CTQueueTest >> testEnqueueUnless [
-	queue enqueue:  1 unless: [ :v | (v rem: 2) = 0].
-	self assert: (queue includes: 1).
-	self assert: queue size equals: 1 .
-	queue enqueue: 2 unless: [ :v | (v rem: 2) = 0].
-	self assert: (queue includes: 1).
-	self assert: (queue includes: 2) .
-	self assert: queue size equals: 2 .
-	queue enqueue: 4 unless: [ :v | (v rem: 2) = 0].
-	self assert: (queue includes: 1).
-	self assert: (queue includes: 2) .
-	self assert: queue size equals: 2 .
-	queue enqueue: 3 unless: [ :v | (v rem: 2) = 0].
-	self assert: (queue includes: 1).
-	self assert: (queue includes: 2) .
-	self assert: queue size equals: 2
-]
diff --git a/src/Containers-Queue/CTQueue.class.st b/src/Containers-Queue/CTQueue.class.st
index d618aab..ebbd947 100644
--- a/src/Containers-Queue/CTQueue.class.st
+++ b/src/Containers-Queue/CTQueue.class.st
@@ -34,6 +34,15 @@ CTQueue class >> new: anInteger [
 		yourself
 ]
 
+{ #category : 'comparing' }
+CTQueue >> = anObject [
+
+	self class = anObject class ifFalse: [ ^ false ].
+	self size = anObject size ifFalse: [ ^ false ].
+
+	^ self elements = anObject elements
+]
+
 { #category : 'converting' }
 CTQueue >> asArray [
 
@@ -95,6 +104,12 @@ CTQueue >> do: aBlock [
 	]
 ]
 
+{ #category : 'accessing' }
+CTQueue >> elements [
+
+	^ elements
+]
+
 { #category : 'adding' }
 CTQueue >> enqueue: anObject [
 
@@ -105,6 +120,7 @@ CTQueue >> enqueue: anObject [
 	size := size + 1.
 	^ self
 ]
+
 { #category : 'adding' }
 CTQueue >> enqueue: anObject unless: thisTestIsTrue [
 	1 to: self size do: [ :i |
@@ -118,7 +134,6 @@ CTQueue >> enqueue: anObject unless: thisTestIsTrue [
 	^ self
 ]
 
-
 { #category : 'adding' }
 CTQueue >> enqueueAll: aCollection [
 
@@ -149,6 +164,14 @@ CTQueue >> grow [
 	rearIndex := size + 1
 ]
 
+{ #category : 'comparing' }
+CTQueue >> hash [
+	| hashValue |
+	hashValue := 131.
+	1 to: size do: [ :i | hashValue := hashValue bitXor: (elements at: i) hash ].
+	^ hashValue
+]
+
 { #category : 'testing' }
 CTQueue >> includes: anElement [
 
@@ -230,4 +253,3 @@ CTQueue >> size [
 
 	^ size
 ]
-