feat: should print error stack (#132)

lib/command.js

@@ -31,6 +31,15 @@ class Command extends BaseCommand {
     };
   }
 
+  /**
+   * default error handler
+   * @param {Error} err - err obj
+   */
+  errorHandler(err) {
+    console.error(err);
+    process.nextTick(() => process.exit(1));
+  }
+
   get context() {
     const context = super.context;
     const { argv, debugPort, execArgvObj, cwd, env } = context;

test/fixtures/my-egg-bin/lib/cmd/error.js

@@ -0,0 +1,12 @@
+'use strict';
+
+const Command = require('../../../../../');
+
+class ErrorCommand extends Command {
+  * run() {
+    const err = new Error('this is an error');
+    throw err;
+  }
+}
+
+module.exports = ErrorCommand;

test/my-egg-bin.test.js

@@ -89,4 +89,13 @@ describe('test/my-egg-bin.test.js', () => {
       .expect('code', 0)
       .end(done);
   });
+
+  it('should log err stack', done => {
+    coffee.fork(eggBin, [ 'error' ], { cwd })
+      .debug()
+      .expect('stderr', /Error: this is an error/)
+      .expect('stderr', /fixtures\/my-egg-bin\/lib\/cmd\/error.js:/)
+      .expect('code', 1)
+      .end(done);
+  });
 });