Added matchers: truthy, falsy, empty and notEmpty

spec/core/asymmetric_equality/EmptySpec.js

@@ -0,0 +1,39 @@
+describe("Empty", function () {
+  it("matches an empty object", function () {
+    var empty = new jasmineUnderTest.Empty();
+
+    expect(empty.asymmetricMatch({})).toBe(true);
+    expect(empty.asymmetricMatch({undefined: false})).toBe(false);
+  });
+
+  it("matches an empty array", function () {
+    var empty = new jasmineUnderTest.Empty();
+
+    expect(empty.asymmetricMatch([])).toBe(true);
+    expect(empty.asymmetricMatch([1, 12, 3])).toBe(false);
+  });
+
+  it("matches an empty string", function () {
+    var empty = new jasmineUnderTest.Empty();
+
+    expect(empty.asymmetricMatch("")).toBe(true);
+    expect(empty.asymmetricMatch('')).toBe(true);
+    expect(empty.asymmetricMatch('12312')).toBe(false);
+  });
+
+  if (typeof Map !== 'undefined') {
+    it("matches an empty map", function () {
+      var empty = new jasmineUnderTest.Empty();
+
+      expect(empty.asymmetricMatch(new Map())).toBe(true);
+    });
+  }
+
+  if (typeof Set !== 'undefined') {
+    it("matches an empty map", function () {
+      var empty = new jasmineUnderTest.Empty();
+
+      expect(empty.asymmetricMatch(new Set())).toBe(true);
+    });
+  }
+});