feat(migrations): add core migration to create content/settings folder

lib/migrations.js

@@ -1,3 +1,15 @@
 'use strict';
 
-module.exports = [];
+function ensureSettingsFolder() {
+    const cwd = process.cwd();
+    const fs = require('fs-extra');
+    const path = require('path');
+
+    fs.ensureDirSync(path.resolve(cwd, 'content', 'settings'));
+}
+
+module.exports = [{
+    before: '1.7.0',
+    title: 'Create content/settings directory',
+    task: ensureSettingsFolder
+}];

test/unit/migrations-spec.js

@@ -0,0 +1,27 @@
+'use strict';
+
+const expect = require('chai').expect;
+const sinon = require('sinon');
+
+const migrations = require('../../lib/migrations');
+
+describe('Unit: Migrations', function () {
+    describe('ensureSettingsFolder', function () {
+        const setupEnv = require('../utils/env');
+        const path = require('path');
+        const fs = require('fs');
+
+        it('creates settings folder if not existant', function () {
+            const env = setupEnv();
+            const cwdStub = sinon.stub(process, 'cwd').returns(env.dir);
+            const ensureSettingsFolder = migrations[0].task;
+
+            ensureSettingsFolder();
+            expect(cwdStub.calledOnce).to.be.true;
+            expect(fs.existsSync(path.join(env.dir, 'content/settings'))).to.be.true;
+
+            cwdStub.restore();
+            env.cleanup();
+        });
+    });
+});