Add filter test

test/unit/filters/filtersSpec.js

@@ -1,6 +1,56 @@
+'use strict';
 //
 // test/unit/filters/filtersSpec.js
 //
-describe("Unit: Testing Filters", function() {
+describe('Unit: Testing Filters', function() {
 
+  beforeEach(module('copayApp.filters'));
+
+  describe('limitAddress', function() {
+
+    it('should handle emtpy list', inject(function($filter) {
+      var limitAddress = $filter('limitAddress');
+      expect(limitAddress([], false)).to.be.empty;
+    }));
+
+    it('should honor show all', inject(function($filter) {
+      var limitAddress = $filter('limitAddress');
+      var addresses = [{}, {}, {}, {}, {}];
+      expect(limitAddress(addresses, true).length).to.equal(5);
+      expect(limitAddress([{}], false).length).to.equal(1);
+    }));
+
+    it('should filter correctly', inject(function($filter) {
+      var limitAddress = $filter('limitAddress');
+      var addresses = [
+        {isChange: true, balance: 0},
+        {isChange: false, balance: 0},
+        {isChange: true, balance: 0},
+        {isChange: false, balance: 0},
+        {isChange: true, balance: 0},
+        {isChange: false, balance: 0},
+        {isChange: true, balance: 0},
+        {isChange: false, balance: 0}
+      ];
+      expect(limitAddress(addresses, false).length).to.equal(1);
+
+      addresses[0].isChange = false;
+      expect(limitAddress(addresses, false).length).to.equal(2);
+
+      addresses[2].isChange = false;
+      expect(limitAddress(addresses, false).length).to.equal(3);
+
+      addresses[3].isChange = false;
+      expect(limitAddress(addresses, false).length).to.equal(3);
+
+      addresses[0].balance = 20;
+      expect(limitAddress(addresses, false).length).to.equal(3);
+
+      addresses[0].balance = 20;
+      expect(limitAddress(addresses, false).length).to.equal(3);
+
+      addresses[7].balance = 20;
+      expect(limitAddress(addresses, false).length).to.equal(4);
+    }));
+  });
 });