test: add tests for "renderer" module (#110)

Author: Kocal

__tests__/core/renderer.test.js

@@ -0,0 +1,27 @@
+const ejs = require('ejs');
+const renderer = require('../../lib/core/renderer');
+
+describe('code.renderer', () => {
+  beforeEach(() => {
+    ejs.renderFile = jest.fn();
+  });
+
+  it('should call ejs render method', () => {
+    const cb = () => {};
+
+    renderer('my-template', { props: ['props'], data: ['data'], computed: ['computed'] }, cb);
+
+    expect(ejs.renderFile).toHaveBeenCalledTimes(1);
+    expect(ejs.renderFile).toHaveBeenCalledWith(
+      'my-template',
+      {
+        props: ['props'],
+        data: ['data'],
+        computed: ['computed'],
+        // an helper function, it should be under keys "utils" or "helpers" btw
+        renderType: expect.any(Function),
+      },
+      cb,
+    );
+  });
+});

__tests__/stubs/jsdoc/lib/jsdoc/util/templateHelper.js

@@ -0,0 +1,4 @@
+// Actually stub this module, to prevent follow error:
+// "Cannot find module 'jsdoc/tag/dictionary' from 'templateHelper.js'" :)
+
+module.exports = {};

jest.config.js

@@ -8,6 +8,10 @@ module.exports = {
   testPathIgnorePatterns: [
     '/node_modules/',
     '/__fixtures__/',
+    '/__tests__/stubs',
     '/cypress/',
   ],
+  moduleNameMapper: {
+    'jsdoc/(.*)': '<rootDir>/__tests__/stubs/jsdoc/$1.js',
+  },
 };