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947f0963 TL |
1 | topSuite("Ext.util.LruCache", function() { |
2 | var cache, | |
3 | obj1 = { objIdx: 1 }, | |
4 | obj2 = { objIdx: 2 }, | |
5 | obj3 = { objIdx: 3 }, | |
6 | obj4 = { objIdx: 4 }, | |
7 | obj5 = { objIdx: 5 }, | |
8 | obj6 = { objIdx: 6 }, | |
9 | obj7 = { objIdx: 7 }, | |
10 | obj8 = { objIdx: 8 }, | |
11 | obj9 = { objIdx: 9 }, | |
12 | obj10 = { objIdx: 10 }; | |
13 | ||
14 | function createCache(config) { | |
15 | cache = new Ext.util.LruCache(config); | |
16 | } | |
17 | ||
18 | describe("Adding", function() { | |
19 | it("should create an empty cache", function() { | |
20 | createCache(); | |
21 | expect(cache.length).toBe(0); | |
22 | expect(cache.first).toBeNull(); | |
23 | expect(cache.last).toBeNull(); | |
24 | expect(cache.getValues()).toEqual([]); | |
25 | expect(cache.getKeys()).toEqual([]); | |
26 | }); | |
27 | ||
28 | it("should contain 1 entry", function() { | |
29 | createCache(); | |
30 | cache.add(1, obj1); | |
31 | expect(cache.length).toEqual(1); | |
32 | expect(cache.first.value).toBe(obj1); | |
33 | expect(cache.last.value).toBe(obj1); | |
34 | expect(cache.getValues()).toEqual([obj1]); | |
35 | expect(cache.getKeys()).toEqual([1]); | |
36 | }); | |
37 | ||
38 | it("should contain 2 entries", function() { | |
39 | createCache(); | |
40 | cache.add(1, obj1); | |
41 | cache.add(2, obj2); | |
42 | expect(cache.length).toEqual(2); | |
43 | expect(cache.first.value).toBe(obj1); | |
44 | expect(cache.last.value).toBe(obj2); | |
45 | expect(cache.getValues()).toEqual([obj1, obj2]); | |
46 | expect(cache.getKeys()).toEqual([1, 2]); | |
47 | }); | |
48 | ||
49 | it("should be able to add existing keys", function() { | |
50 | createCache(); | |
51 | cache.add(1, obj1); | |
52 | cache.add(2, obj2); | |
53 | cache.add(1, obj3); | |
54 | expect(cache.length).toEqual(2); | |
55 | expect(cache.first.value).toBe(obj2); | |
56 | expect(cache.last.value).toBe(obj3); | |
57 | expect(cache.getValues()).toEqual([obj2, obj3]); | |
58 | expect(cache.getKeys()).toEqual([2, 1]); | |
59 | }); | |
60 | }); | |
61 | ||
62 | describe("Sort on access", function() { | |
63 | it("should move accessed items to the end", function() { | |
64 | createCache(); | |
65 | cache.add(1, obj1); | |
66 | cache.add(2, obj2); | |
67 | expect(cache.getValues()).toEqual([obj1, obj2]); | |
68 | expect(cache.getKeys()).toEqual([1, 2]); | |
69 | cache.get(1); | |
70 | expect(cache.getValues()).toEqual([obj2, obj1]); | |
71 | expect(cache.getKeys()).toEqual([2, 1]); | |
72 | }); | |
73 | }); | |
74 | ||
75 | describe("Inserting", function() { | |
76 | it("should insert at the requested point", function() { | |
77 | createCache(); | |
78 | cache.add(1, obj1); | |
79 | cache.insertBefore(2, obj2, obj1); | |
80 | expect(cache.getValues()).toEqual([obj2, obj1]); | |
81 | expect(cache.getKeys()).toEqual([2, 1]); | |
82 | }); | |
83 | }); | |
84 | ||
85 | describe("Iterating", function() { | |
86 | it("should iterate in order", function() { | |
87 | var result = []; | |
88 | ||
89 | createCache(); | |
90 | cache.add(1, obj1); | |
91 | cache.add(2, obj2); | |
92 | cache.each(function(key, value, length) { | |
93 | result.push(key, value); | |
94 | }); | |
95 | expect(result).toEqual([1, obj1, 2, obj2]); | |
96 | }); | |
97 | it("should iterate in reverse order", function() { | |
98 | var result = []; | |
99 | ||
100 | createCache(); | |
101 | cache.add(1, obj1); | |
102 | cache.add(2, obj2); | |
103 | cache.each(function(key, value, length) { | |
104 | result.push(key, value); | |
105 | }, null, true); | |
106 | expect(result).toEqual([2, obj2, 1, obj1]); | |
107 | }); | |
108 | }); | |
109 | ||
110 | describe("Removing", function() { | |
111 | it("should remove by key and re-link", function() { | |
112 | createCache(); | |
113 | cache.add(1, obj1); | |
114 | cache.add(2, obj2); | |
115 | cache.add(3, obj3); | |
116 | cache.removeAtKey(2); | |
117 | expect(cache.getValues()).toEqual([obj1, obj3]); | |
118 | expect(cache.getKeys()).toEqual([1, 3]); | |
119 | }); | |
120 | it("should remove by value and re-link", function() { | |
121 | createCache(); | |
122 | cache.add(1, obj1); | |
123 | cache.add(2, obj2); | |
124 | cache.add(3, obj3); | |
125 | cache.remove(obj2); | |
126 | expect(cache.getValues()).toEqual([obj1, obj3]); | |
127 | expect(cache.getKeys()).toEqual([1, 3]); | |
128 | }); | |
129 | }); | |
130 | ||
131 | describe("Clearing", function() { | |
132 | it("should remove all", function() { | |
133 | createCache(); | |
134 | cache.add(1, obj1); | |
135 | cache.add(2, obj2); | |
136 | cache.clear(); | |
137 | expect(cache.getValues()).toEqual([]); | |
138 | expect(cache.getKeys()).toEqual([]); | |
139 | }); | |
140 | }); | |
141 | ||
142 | describe("Purging", function() { | |
143 | it("should only contain the last 5 added", function() { | |
144 | createCache({ | |
145 | maxSize: 5 | |
146 | }); | |
147 | cache.add(1, obj1); | |
148 | cache.add(2, obj2); | |
149 | cache.add(3, obj3); | |
150 | cache.add(4, obj4); | |
151 | cache.add(5, obj5); | |
152 | expect(cache.getValues()).toEqual([obj1, obj2, obj3, obj4, obj5]); | |
153 | expect(cache.getKeys()).toEqual([1, 2, 3, 4, 5]); | |
154 | cache.add(6, obj6); | |
155 | expect(cache.getValues()).toEqual([obj2, obj3, obj4, obj5, obj6]); | |
156 | expect(cache.getKeys()).toEqual([2, 3, 4, 5, 6]); | |
157 | cache.add(7, obj7); | |
158 | expect(cache.getValues()).toEqual([obj3, obj4, obj5, obj6, obj7]); | |
159 | expect(cache.getKeys()).toEqual([3, 4, 5, 6, 7]); | |
160 | cache.add(8, obj8); | |
161 | expect(cache.getValues()).toEqual([obj4, obj5, obj6, obj7, obj8]); | |
162 | expect(cache.getKeys()).toEqual([4, 5, 6, 7, 8]); | |
163 | cache.add(9, obj9); | |
164 | expect(cache.getValues()).toEqual([obj5, obj6, obj7, obj8, obj9]); | |
165 | expect(cache.getKeys()).toEqual([5, 6, 7, 8, 9]); | |
166 | cache.add(10, obj10); | |
167 | expect(cache.getValues()).toEqual([obj6, obj7, obj8, obj9, obj10]); | |
168 | expect(cache.getKeys()).toEqual([6, 7, 8, 9, 10]); | |
169 | }); | |
170 | }); | |
171 | }); |