diff --git a/module/projectbuild/test/lib/buildlinkbug.ui.class.php b/module/projectbuild/test/lib/buildlinkbug.ui.class.php
index b4ccf3352f..adc1457b00 100644
--- a/module/projectbuild/test/lib/buildlinkbug.ui.class.php
+++ b/module/projectbuild/test/lib/buildlinkbug.ui.class.php
@@ -37,3 +37,23 @@ class buildLinkBugTester extends tester
     {
         $form = $this->initForm('projectbuild', 'view', array('buildID' => 1), 'appIframe-project');
         $form->dom->resolvedBugTab->click();
+        $form->wait(2);
+        $linkNumBefore = $form->dom->resolvedBugNum->getText(); // 记录移除bug前版本关联的bug数量
+        $form->dom->unlinkFirBugBtn->click(); // 点击第一行的单个移除按钮
+        $form->wait(1);
+        $form->dom->alertModal(); // 模态框中点击确定
+        $form->wait(2);
+        $linkNumAfter = $form->dom->resolvedBugNum->getText(); // 记录移除bug后版本关联的bug数量
+        // 断言检查单个移除bug是否成功
+        return ($linkNumAfter == $linkNumBefore - 1) ? $this->success('单个移除bug成功') : $this->failed('单个移除bug失败');
+    }
+
+    /**
+     * unlink all bug of project build.
+     * 移除全部bug
+     *
+     * @return object
+     */
+    public function batchUnlinkBug()
+    {
+        $form = $this->initForm('projectbuild', 'view', array('buildID' => 1), 'appIframe-project');