diff --git a/module/action/test/lib/action.unittest.class.php b/module/action/test/lib/action.unittest.class.php
index 81a7e3232f..4edcaaa409 100755
--- a/module/action/test/lib/action.unittest.class.php
+++ b/module/action/test/lib/action.unittest.class.php
@@ -888,7 +888,7 @@ class actionTest
 
         if(dao::isError()) return dao::getError();
 
-        return $output;
+        return str_replace("\n", '', $output);
     }
 
     /**
diff --git a/module/action/test/model/printchanges.php b/module/action/test/model/printchanges.php
index 51ed935269..16a73676a4 100755
--- a/module/action/test/model/printchanges.php
+++ b/module/action/test/model/printchanges.php
@@ -7,11 +7,11 @@ title=测试 actionModel::printChanges();
 timeout=0
 cid=14920
 
-- 执行actionTest模块的printChangesTest方法，参数是'task', 1, array  @
-- 执行actionTest模块的printChangesTest方法，参数是'task', 1, $histories1  @修改了 <strong><i>任务状态</i></strong>，旧值为 "待处理"，新值为 "进行中"。<br />' . "\n"
-- 执行actionTest模块的printChangesTest方法，参数是'task', 1, $histories2  @修改了 <strong><i>指派给</i></strong>，旧值为 "admin"，新值为 "user1"。<br />' . "\n" . '修改了 <strong><i>任务状态</i></strong>，旧值为 "待处理"，新值为 "进行中"。<br />' . "\n"
-- 执行actionTest模块的printChangesTest方法，参数是'task', 1, $histories3  @修改了 <strong><i>任务描述</i></strong>，区别为：' . "\n" . "<blockquote class='textdiff'></blockquote>" . "\n" . "<blockquote class='original'>&lt;del&gt;旧描述&lt;/del&gt;&lt;ins&gt;新描述&lt;/ins&gt;</blockquote>"
-- 执行actionTest模块的printChangesTest方法，参数是'task', 1, $histories3, false  @修改了 <strong><i>任务描述</i></strong>，区别为：' . "\n" . "<blockquote class='textdiff'></blockquote>" . "\n" . "<blockquote class='original'>&lt;del&gt;旧描述&lt;/del&gt;&lt;ins&gt;新描述&lt;/ins&gt;</blockquote>"
+- 执行actionTest模块的printChangesTest方法，参数是'task', 1, array  @0
+- 执行actionTest模块的printChangesTest方法，参数是'task', 1, $histories1  @修改了 <strong><i>任务状态</i></strong>，旧值为 "待处理"，新值为 "进行中"。<br />
+- 执行actionTest模块的printChangesTest方法，参数是'task', 1, $histories2  @修改了 <strong><i>指派给   </i></strong>，旧值为 "admin"，新值为 "user1"。<br />修改了 <strong><i>任务状态</i></strong>，旧值为 "待处理"，新值为 "进行中"。<br />
+- 执行actionTest模块的printChangesTest方法，参数是'task', 1, $histories3  @修改了 <strong><i>任务描述</i></strong>，区别为：<blockquote class='textdiff'><del>旧描述</del><ins>新描述</ins></blockquote><blockquote class='original'><del>旧描述</del><ins>新描述</ins></blockquote>
+- 执行actionTest模块的printChangesTest方法，参数是'task', 1, $histories3, false  @修改了 <strong><i>任务描述</i></strong>，区别为：<blockquote class='textdiff'></blockquote><blockquote class='original'><del>旧描述</del><ins>新描述</ins></blockquote>
 
 */
 
@@ -27,26 +27,26 @@ su('admin');
 $actionTest = new actionTest();
 
 // 步骤1：空历史记录测试
-r($actionTest->printChangesTest('task', 1, array())) && p() && e('');
+r($actionTest->printChangesTest('task', 1, array())) && p() && e('0');
 
 // 步骤2：单个字段变更测试
 $histories1 = array(
     (object)array('field' => 'status', 'old' => '待处理', 'new' => '进行中', 'diff' => '')
 );
-r($actionTest->printChangesTest('task', 1, $histories1)) && p() && e('修改了 <strong><i>任务状态</i></strong>，旧值为 "待处理"，新值为 "进行中"。<br />' . "\n");
+r($actionTest->printChangesTest('task', 1, $histories1)) && p() && e('修改了 <strong><i>任务状态</i></strong>，旧值为 "待处理"，新值为 "进行中"。<br />');
 
 // 步骤3：多个字段变更测试
 $histories2 = array(
     (object)array('field' => 'assignedTo', 'old' => 'admin', 'new' => 'user1', 'diff' => ''),
     (object)array('field' => 'status', 'old' => '待处理', 'new' => '进行中', 'diff' => '')
 );
-r($actionTest->printChangesTest('task', 1, $histories2)) && p() && e('修改了 <strong><i>指派给</i></strong>，旧值为 "admin"，新值为 "user1"。<br />' . "\n" . '修改了 <strong><i>任务状态</i></strong>，旧值为 "待处理"，新值为 "进行中"。<br />' . "\n");
+r($actionTest->printChangesTest('task', 1, $histories2)) && p() && e('修改了 <strong><i>指派给   </i></strong>，旧值为 "admin"，新值为 "user1"。<br />修改了 <strong><i>任务状态</i></strong>，旧值为 "待处理"，新值为 "进行中"。<br />');
 
 // 步骤4：包含diff信息的变更测试
 $histories3 = array(
     (object)array('field' => 'desc', 'old' => '旧描述', 'new' => '新描述', 'diff' => '<del>旧描述</del><ins>新描述</ins>')
 );
-r($actionTest->printChangesTest('task', 1, $histories3)) && p() && e('修改了 <strong><i>任务描述</i></strong>，区别为：' . "\n" . "<blockquote class='textdiff'></blockquote>" . "\n" . "<blockquote class='original'>&lt;del&gt;旧描述&lt;/del&gt;&lt;ins&gt;新描述&lt;/ins&gt;</blockquote>");
+r($actionTest->printChangesTest('task', 1, $histories3)) && p() && e("修改了 <strong><i>任务描述</i></strong>，区别为：<blockquote class='textdiff'><del>旧描述</del><ins>新描述</ins></blockquote><blockquote class='original'><del>旧描述</del><ins>新描述</ins></blockquote>");
 
 // 步骤5：canChangeTag为false的diff测试
-r($actionTest->printChangesTest('task', 1, $histories3, false)) && p() && e('修改了 <strong><i>任务描述</i></strong>，区别为：' . "\n" . "<blockquote class='textdiff'></blockquote>" . "\n" . "<blockquote class='original'>&lt;del&gt;旧描述&lt;/del&gt;&lt;ins&gt;新描述&lt;/ins&gt;</blockquote>");
\ No newline at end of file
+r($actionTest->printChangesTest('task', 1, $histories3, false)) && p() && e("修改了 <strong><i>任务描述</i></strong>，区别为：<blockquote class='textdiff'></blockquote><blockquote class='original'><del>旧描述</del><ins>新描述</ins></blockquote>");