use jest for CI

test/lib/ruleLoader.spec.js

@@ -0,0 +1,42 @@
+const ruleLoader = require('../../lib/ruleLoader');
+const fs = require('fs');
+const path = require('path');
+
+const localModulePath = path.join(__dirname, '../fixtures/someRule.js');
+describe('ruleLoader', () => {
+  it('should successfully cache a remote file', async () => {
+    await ruleLoader.cacheRemoteFile('https://cdn.bootcss.com/lodash.js/4.16.4/lodash.min.js')
+      .then(filePath => {
+        let content;
+        if (filePath) {
+          content = fs.readFileSync(filePath, { encoding: 'utf8' });
+        }
+        expect(content && content.length > 100).toBe(true);
+      });
+  });
+
+  it('should load a local module ../util/CommonUtil', async () => {
+    await ruleLoader.loadLocalPath(localModulePath)
+      .then(module => {
+        expect(module.foo).not.toBeUndefined();
+      });
+  });
+
+  it('should smart load a remote module', done => {
+    ruleLoader.requireModule('https://cdn.bootcss.com/lodash.js/4.16.4/lodash.min.js')
+      .then(module => {
+        expect(module.VERSION).toEqual('4.16.4');
+        done();
+      })
+      .catch(done.fail);
+  });
+
+  it('should smart load a local module', done => {
+    ruleLoader.requireModule(localModulePath)
+      .then(module => {
+        expect(module.foo).not.toBeUndefined();
+        done();
+      })
+      .catch(done.fail);
+  });
+});