Merge branch 'set-equality' of https://github.com/alur/jasmine into alur-set-equality

- Merges #1067 from @alur

spec/core/PrettyPrintSpec.js

@@ -14,6 +14,25 @@ describe("jasmineUnderTest.pp", function () {
     expect(jasmineUnderTest.pp(-0)).toEqual("-0");
   });
 
+  describe('stringify sets', function() {
+    if (typeof Set === 'undefined') { return; }
+
+    it("should stringify sets properly", function() {
+      expect(jasmineUnderTest.pp(new Set([1, 2]))).toEqual("Set( 1, 2 )");
+    });
+
+    it("should truncate sets with more elments than jasmineUnderTest.MAX_PRETTY_PRINT_ARRAY_LENGTH", function() {
+      var originalMaxSize = jasmineUnderTest.MAX_PRETTY_PRINT_ARRAY_LENGTH;
+
+      try {
+        jasmineUnderTest.MAX_PRETTY_PRINT_ARRAY_LENGTH = 2;
+        expect(jasmineUnderTest.pp(new Set(["a", "b", "c"]))).toEqual("Set( 'a', 'b', ... )");
+      } finally {
+        jasmineUnderTest.MAX_PRETTY_PRINT_ARRAY_LENGTH = originalMaxSize;
+      }
+    })
+  });
+
   describe('stringify arrays', function() {
     it("should stringify arrays properly", function() {
       expect(jasmineUnderTest.pp([1, 2])).toEqual("[ 1, 2 ]");

spec/core/matchers/matchersUtilSpec.js

@@ -367,6 +367,42 @@ describe("matchersUtil", function() {
 
       expect(jasmineUnderTest.matchersUtil.equals(objA, objB)).toBe(false);
     });
+
+    it("passes when comparing two empty sets", function() {
+      if (typeof Set === 'undefined') { return; }
+      expect(jasmineUnderTest.matchersUtil.equals(new Set(), new Set())).toBe(true);
+    });
+
+    it("passes when comparing identical sets", function() {
+      if (typeof Set === 'undefined') { return; }
+      var setA = new Set([6, 5]);
+      var setB = new Set();
+      setB.add(6);
+      setB.add(5);
+      expect(jasmineUnderTest.matchersUtil.equals(setA, setB)).toBe(true);
+    });
+
+    it("fails for sets with different elements", function() {
+      if (typeof Set === 'undefined') { return; }
+      var setA = new Set([6, 3, 5]);
+      var setB = new Set([6, 4, 5]);
+      expect(jasmineUnderTest.matchersUtil.equals(setA, setB)).toBe(false);
+    });
+
+    it("fails for sets of different size", function() {
+      if (typeof Set === 'undefined') { return; }
+      var setA = new Set([6, 3]);
+      var setB = new Set([6, 4, 5]);
+      expect(jasmineUnderTest.matchersUtil.equals(setA, setB)).toBe(false);
+    });
+
+    it("fails for sets with different insertion order", function() {
+      if (typeof Set === 'undefined') { return; }
+      var setA = new Set([3, 6]);
+      var setB = new Set([6, 3]);
+      expect(jasmineUnderTest.matchersUtil.equals(setA, setB)).toBe(false);
+    });
+
   });
 
   describe("contains", function() {