Merge pull request #41 from kadirahq/tests

Write test cases for dataStore

src/manager/containers/CommentsPanel/dataStore.js

@@ -59,7 +59,7 @@ export default class DataStore {
     this.currentStory = { sbKind, sbStory };
 
     // We don't need to do anything if the there's no loggedIn user.
-    if(!this.user) return;
+    if (!this.user) return;
 
     this._reloadCurrentComments();
     const item = this._getFromCache(this.currentStory);

src/tests/dataStore.js

@@ -0,0 +1,73 @@
+// import { shallow, mount } from 'enzyme';
+import { expect } from 'chai';
+import sinon from 'sinon';
+import addons from '@kadira/storybook-addons';
+import DataStore from '../manager/containers/CommentsPanel/dataStore';
+
+const { describe, it } = global;
+
+const dbGetPromiseReturn = sinon.stub();
+const dbSetPromiseReturn = sinon.stub();
+
+const myDb = {
+  getCollection() {
+    return {
+      get() {
+        return new Promise(dbGetPromiseReturn);
+      },
+      set() {
+        return new Promise(dbSetPromiseReturn);
+      },
+    };
+  },
+};
+addons.setDatabase(myDb);
+
+const db = addons.getDatabase();
+const theStore = new DataStore(db);
+
+describe('DataStore', () => {
+
+  it('set current story - when user not logged in', () => {
+    theStore.setCurrentStory('Components', 'CommentList - No Comments');
+
+    expect(dbGetPromiseReturn.called).to.equal(false);
+    expect(theStore.currentStory).to.deep.equal({ sbKind: 'Components', sbStory: 'CommentList - No Comments' });
+  });
+
+  it('set current user', () => {
+    theStore.setCurrentUser({
+      id: 'user-id',
+      name: 'user-name',
+    });
+
+    expect(theStore.user).to.deep.equal({ id: 'user-id', name: 'user-name' });
+  });
+
+  it('set current story - when user already logged in', () => {
+    theStore.setCurrentStory('Components', 'CommentList - No Comments');
+
+    expect(dbGetPromiseReturn.called).to.equal(true);
+    expect(theStore.currentStory).to.deep.equal({ sbKind: 'Components', sbStory: 'CommentList - No Comments' });
+  });
+
+  it('add comment', () => {
+    const comment = {
+      text: 'sample comment',
+      time: 1476435982029,
+      userId: 'user-id',
+    };
+
+    theStore.addComment(comment);
+
+    expect(dbGetPromiseReturn.called).to.equal(true);
+    expect(dbSetPromiseReturn.called).to.equal(true);
+  });
+
+  it('onComments', () => {
+    theStore.onComments((comments) => {
+      return comments;
+    });
+    expect(dbGetPromiseReturn.called).to.equal(true);
+  });
+});