From a51e9932dfe4a5b7b77bcc77ae10175cc48a7c95 Mon Sep 17 00:00:00 2001
From: Hsuan Lee <hsuangm@gmail.com>
Date: Mon, 17 Jun 2019 18:22:52 +0800
Subject: [PATCH] build: fix `test:watch` task

---
 components/test.ts              | 5 ++++-
 scripts/gulp/tasks/unit-test.ts | 6 +++++-
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/components/test.ts b/components/test.ts
index 7209ac8854a..ce11f140e27 100644
--- a/components/test.ts
+++ b/components/test.ts
@@ -32,6 +32,9 @@ if (tags) {
 // Then we find all the tests.
 const context = require.context('./', true, /\.spec\.ts$/);
 // Filter specify file
-const specFiles = context.keys().filter((path: string) => filterRegExp.test(path));
+const specFiles = context.keys().filter((path: string) => {
+  console.log(filterRegExp);
+  return filterRegExp.test(path);
+});
 // And load the modules.
 specFiles.map(context);
diff --git a/scripts/gulp/tasks/unit-test.ts b/scripts/gulp/tasks/unit-test.ts
index 2534296908c..e9ff55730da 100644
--- a/scripts/gulp/tasks/unit-test.ts
+++ b/scripts/gulp/tasks/unit-test.ts
@@ -3,11 +3,15 @@ import { execTask } from '../util/task-helpers';
 
 task('test:watch', (done) => {
   const argv = require('minimist')(process.argv.slice(2));
+  let tags = '';
+  if (argv.tags && typeof argv.tags === 'string') {
+    tags = argv.tags;
+  }
   return execTask(
     'ng',
     ['test', '--watch=true', '--code-coverage'],
     {
-      'NG_TEST_TAGS': argv.tags || ''
+      'NG_TEST_TAGS': tags
     }
   )(done);
 });