Add expect.js support for "not" statement

Author: dmitry-zaets

src/expectjs.js

@@ -10,9 +10,17 @@ function dispatchActions(expectedActions, done) {
   if (this.obj instanceof ActionWithInitialState) {
     const action = this.obj.action;
     const state = this.obj.state;
-    assertions.toDispatchActionsWithState(state, action, expectedActions, done);
+    if (this.flags.not) {
+      assertions.toNotDispatchActionsWithState(state, action, expectedActions, done);
+    } else {
+      assertions.toDispatchActionsWithState(state, action, expectedActions, done);
+    }
   } else {
-    assertions.toDispatchActions(this.obj, expectedActions, done);
+    if (this.flags.not) {
+      assertions.toNotDispatchActions(this.obj, expectedActions, done);
+    } else {
+      assertions.toDispatchActions(this.obj, expectedActions, done);
+    }
   }
 }
 

test/expectjs/index.js

@@ -41,4 +41,24 @@ describe('expect.js', () => {
         .to.dispatchActions(actions.expectedParentActions, done);
     });
   });
+
+  describe('not.dispatchActions', () => {
+    it('should accept single action', (done) => {
+      expect(actions.start()).to.not.dispatchActions(actions.anotherStart(), done);
+    });
+
+    it('should accept array with one action', (done) => {
+      expect(actions.start()).to.not.dispatchActions([actions.anotherStart()], done);
+    });
+
+    it('should accept array with multiple actions', (done) => {
+      expect(actions.asyncActionCreator())
+        .to.not.dispatchActions(actions.anotherExpectedActions, done);
+    });
+
+    it('should accept array with nested async action creators', (done) => {
+      expect(actions.parentAsyncActionCreator())
+        .to.not.dispatchActions(actions.anotherParentExpectedActions, done);
+    });
+  });
 });