feat(gogame): Add the method playMove to GoGame prototype

Each GoGame object now has a playMove method which calls the reducer with itself and the playMove

action and returns the result. The GoGame itself stays immutable.

.babelrc

@@ -3,7 +3,10 @@
   "plugins": ["transform-object-rest-spread", "add-module-exports"],
   "env": {
     "test": {
-      "plugins": [["__coverage__", { "only": "src/GoGame" }]]
+      "plugins": [
+        ["__coverage__", { "only": "src/GoGame" }],
+        "rewire",
+      ]
     }
   }
 }

package.json

@@ -48,11 +48,11 @@
     "babel-loader": "^6.2.4",
     "babel-plugin-__coverage__": "^1.11.111",
     "babel-plugin-add-module-exports": "^0.2.1",
+    "babel-plugin-rewire": "^1.0.0-rc-3",
     "babel-plugin-transform-object-rest-spread": "^6.8.0",
     "babel-preset-es2015": "^6.9.0",
     "babel-preset-react": "^6.5.0",
     "chai": "^3.5.0",
-    "chai-enzyme": "^0.4.2",
     "codecov.io": "^0.1.6",
     "commitizen": "^2.8.2",
     "cross-env": "^1.0.8",
@@ -68,6 +68,8 @@
     "nyc": "^6.4.4",
     "rimraf": "^2.5.2",
     "semantic-release": "^4.3.5",
+    "sinon": "^1.17.4",
+    "sinon-chai": "^2.8.0",
     "webpack": "^1.13.1",
     "webpack-dev-server": "^1.14.1"
   },

src/GoGame/GoGame.js

@@ -17,6 +17,9 @@ GoGame.prototype = {
   get turn() {
     return 'BLACK';
   },
+  playMove({ i, j }) {
+    return goGameReducer(this, actions.playMove(i, j));
+  },
 };
 
 export default GoGame;

test/game/GoGame.spec.js

@@ -1,8 +1,11 @@
 /* eslint-env mocha */
 import _ from 'lodash';
-import { expect } from 'chai';
+import chai, { expect } from 'chai';
+import sinon from 'sinon';
+import sinonChai from 'sinon-chai';
+chai.use(sinonChai);
 
-import { GoGame } from '../../src';
+import { GoGame, actions } from '../../src';
 
 describe('GoGame', () => {
   describe('default / empty GoGame object', () => {
@@ -49,4 +52,19 @@ describe('GoGame', () => {
       expect(game.turn).to.equal('BLACK');
     });
   });
+
+  /* eslint-disable no-underscore-dangle */
+  describe('playMove method', () => {
+    it('Should call the reducer with the playMove action and return the result', () => {
+      const resultGame = {};
+      const reducerStub = sinon.stub().returns(resultGame);
+      GoGame.__Rewire__('goGameReducer', reducerStub);
+      const game = new GoGame();
+
+      const actual = game.playMove({ i: 3, j: 3 });
+
+      expect(reducerStub).to.have.been.calledWith(game, actions.playMove(3, 3));
+      expect(actual).to.equal(resultGame);
+    });
+  });
 });