Pull async matchers out to their own functions

- Makes AsyncExpectation closer to Expectation

spec/core/matchers/async/toBeResolvedToSpec.js

@@ -0,0 +1,66 @@
+describe('#toBeResolvedTo', function() {
+  it('passes if the promise is resolved to the expected value', function() {
+    jasmine.getEnv().requirePromises();
+
+    var matcher = jasmineUnderTest.asyncMatchers.toBeResolvedTo(jasmineUnderTest.matchersUtil),
+      actual = Promise.resolve({foo: 42});
+
+    return matcher.compare(actual, {foo: 42}).then(function(result) {
+      expect(result).toEqual(jasmine.objectContaining({pass: true}));
+    });
+  });
+
+  it('fails if the promise is rejected', function() {
+    jasmine.getEnv().requirePromises();
+
+    var matcher = jasmineUnderTest.asyncMatchers.toBeResolvedTo(jasmineUnderTest.matchersUtil),
+      actual = Promise.reject('AsyncExpectationSpec error');
+
+    return matcher.compare(actual, '').then(function(result) {
+      expect(result).toEqual(jasmine.objectContaining({
+        pass: false,
+        message: "Expected a promise to be resolved to '' but it was rejected.",
+      }));
+    });
+  });
+
+  it('fails if the promise is resolved to a different value', function() {
+    jasmine.getEnv().requirePromises();
+
+    var matcher = jasmineUnderTest.asyncMatchers.toBeResolvedTo(jasmineUnderTest.matchersUtil),
+      actual = Promise.resolve({foo: 17});
+
+    return matcher.compare(actual, {foo: 42}).then(function(result) {
+      expect(result).toEqual(jasmine.objectContaining({
+        pass: false,
+        message: 'Expected a promise to be resolved to Object({ foo: 42 }) but it was resolved to Object({ foo: 17 }).',
+      }));
+    });
+  });
+
+  it('builds its message correctly when negated', function() {
+    jasmine.getEnv().requirePromises();
+
+    var matcher = jasmineUnderTest.asyncMatchers.toBeResolvedTo(jasmineUnderTest.matchersUtil),
+      actual = Promise.resolve(true);
+
+    return matcher.compare(actual, true).then(function(result) {
+      expect(result).toEqual(jasmine.objectContaining({
+        pass: true,
+        message: 'Expected a promise not to be resolved to true.'
+      }));
+    });
+  });
+
+  it('supports custom equality testers', function() {
+    jasmine.getEnv().requirePromises();
+
+    var customEqualityTesters = [function() { return true; }],
+      matcher = jasmineUnderTest.asyncMatchers.toBeResolvedTo(jasmineUnderTest.matchersUtil, customEqualityTesters),
+      actual = Promise.resolve('actual');
+
+    return matcher.compare(actual, 'expected').then(function(result) {
+      expect(result).toEqual(jasmine.objectContaining({pass: true}));
+    });
+  });
+});