(#21) LinkedHashMap should return if the map is empty or not

EnoF · Feb 12, 2014 · 3de7704 · 3de7704
1 parent b05648e
commit 3de7704
Show file tree

Hide file tree

Showing 2 changed files with 10 additions and 0 deletions.
diff --git a/src/LinkedHashMap.js b/src/LinkedHashMap.js
@@ -253,6 +253,9 @@
             getSize: function getSize() {
                 return this.private.count;
             },
+            isEmpty: function isEmpty() {
+                return this.private.count === 0;
+            },
             /**
              * Removes a node with a given key
              *

diff --git a/test/spec/LinkedHashMapSpec.js b/test/spec/LinkedHashMapSpec.js
@@ -43,6 +43,13 @@
                 expect(list.removeFirst()).toEqual(false);
                 expect(list.removeLast()).toEqual(false);
             });
+
+            it('should return true when the map is empty, but false when it is not', function emptyMap() {
+                var list = new LinkedHashMap();
+                expect(list.isEmpty()).toEqual(true);
+                list.add(0, 'hello');
+                expect(list.isEmpty()).toEqual(false);
+            });
         });
 
         describe('modifying an LinkedHashMap', function modifyLinkedHashMapSpecs() {