feat: change assert to warning (#157)

Author: whxaxes

lib/loader/egg_loader.js

@@ -30,6 +30,10 @@ class EggLoader {
     assert(this.options.app, 'options.app is required');
     assert(this.options.logger, 'options.logger is required');
 
+    if (options.typescript && !require.extensions['.ts']) {
+      this.options.logger.warn('[egg:loader] `require.extensions` should contains `.ts` while `options.typescript` was true');
+    }
+
     this.app = this.options.app;
 
     /**

lib/loader/file_loader.js

@@ -50,9 +50,6 @@ class FileLoader {
   constructor(options) {
     assert(options.directory, 'options.directory is required');
     assert(options.target, 'options.target is required');
-    if (options.typescript) {
-      assert(require.extensions['.ts'], '`require.extensions` should contains `.ts` while `options.typescript` was true');
-    }
     this.options = Object.assign({}, defaults, options);
 
     // compatible old options _lowercaseFirst_
@@ -127,7 +124,7 @@ class FileLoader {
   parse() {
     let files = this.options.match;
     if (!files) {
-      files = this.options.typescript
+      files = (this.options.typescript && require.extensions['.ts'])
         ? [ '**/*.(js|ts)', '!**/*.d.ts' ]
         : [ '**/*.js' ];
     } else {

test/egg-ts.test.js

@@ -7,11 +7,11 @@ const utils = require('./utils');
 describe('test/egg-ts.test.js', () => {
   let app;
 
-  before(() => {
+  beforeEach(() => {
     require.extensions['.ts'] = require.extensions['.js'];
   });
 
-  after(() => {
+  afterEach(() => {
     delete require.extensions['.ts'];
   });
 
@@ -85,4 +85,15 @@ describe('test/egg-ts.test.js', () => {
     assert(app.serviceClasses.lord);
     assert(!app.serviceClasses.test);
   });
+
+  it('should not load ts files while typescript was true but no extensions', async () => {
+    delete require.extensions['.ts'];
+    app = utils.createApp('egg-ts-js', { typescript: true });
+
+    app.loader.loadApplicationExtend();
+    app.loader.loadService();
+    assert(!app.appExtend);
+    assert(app.serviceClasses.lord);
+    assert(!app.serviceClasses.test);
+  });
 });

test/loader/egg_loader.test.js

@@ -39,5 +39,13 @@ describe('test/loader/egg_loader.test.js', () => {
       mm(process.env, 'EGG_HOME', '/path/to/home');
       assert(app.loader.getHomedir() === '/path/to/home');
     });
+
+    it('should warning when typescript was true but no ts extension', done => {
+      mm(process.stdout, 'write', msg => {
+        assert(msg.includes('`require.extensions` should contains `.ts` while `options.typescript` was true'));
+        done();
+      });
+      utils.createApp('nothing', { typescript: true });
+    });
   });
 });

test/loader/file_loader.test.js

@@ -254,17 +254,6 @@ describe('test/loader/file_loader.test.js', () => {
     }, /_private is not match 'a-z0-9_-' in _private.js/);
   });
 
-  it('should throw when typescript was true but no ts extension', () => {
-    const mod = {};
-    assert.throws(() => {
-      new FileLoader({
-        directory: path.join(dirBase, 'error/dotdir'),
-        target: mod,
-        typescript: true,
-      }).load();
-    }, /`require.extensions` should contains `.ts` while `options.typescript` was true/);
-  });
-
   describe('caseStyle', () => {
     it('should load when caseStyle = upper', () => {
       const target = {};