diff --git a/module/screen/model.php b/module/screen/model.php
index a52b95e27c..924bfd722b 100755
--- a/module/screen/model.php
+++ b/module/screen/model.php
@@ -1548,7 +1548,7 @@ class screenModel extends model
      */
     public function getBurnData(): array
     {
-        $type       = 'withdelay';
+        $type = 'withdelay';
         /* 获取所有正在进行的执行和阶段。 */
         /* Get all sprint and stage which are doing. */
         $executions = $this->loadModel('execution')->getList(0, 'sprint', 'doing') + $this->execution->getList(0, 'stage', 'doing');
diff --git a/module/screen/test/model/buildcomponent.php b/module/screen/test/model/buildcomponent.php
index 37cbba9acd..5f6e01f589 100644
--- a/module/screen/test/model/buildcomponent.php
+++ b/module/screen/test/model/buildcomponent.php
@@ -48,7 +48,7 @@ if($component1) $screen->buildComponentTest($component1);
 r(isset($component1->option->dataset->dimensions) && is_array($component1->option->dataset->dimensions)) && p('') && e('1');  //有图表id的元素判断是否正常生成了刻度和数据。
 
 if($component2) $screen->buildComponentTest($component2);
-r(isset($component2) && is_object($component2)) && p('') && e('0');  //目前没有Select组件，所以这里应该是false。
+r(isset($component2) && $component2->option->dataset[0]['label'] == '2023') && p('') && e('0');  //判断是否正常生成了Select组件。
 
 if($component3) $screen->buildComponentTest($component3);
 r($component3->styles && $component->status && $component->request) && p('') && e('1');  //非列表的组件判断是否给予了默认的属性。
diff --git a/module/screen/test/model/getbyid.php b/module/screen/test/model/getbyid.php
index 7e6bdbef79..f8e9af1441 100644
--- a/module/screen/test/model/getbyid.php
+++ b/module/screen/test/model/getbyid.php
@@ -21,7 +21,6 @@ pid=1
 
 $screen = new screenTest();
 
-
 $screenIDList = array(0, 1, 2, 3, 4, 5, 6, 7, 8);
 $yearList     = array(0, 2019);
 $deptList     = array(0, 1, 2);
@@ -29,6 +28,7 @@ $accountList  = array('', 'admin', 'user');
 
 r($screen->getByIDTest($screenIDList[0], $yearList[0], $deptList[0], $accountList[0])) && p('')   && e(0);  //测试不存在的screenID
 r($screen->getByIDTest($screenIDList[1], $yearList[0], $deptList[0], $accountList[0])) && p('id') && e(1);  //测试存在的screenID
+
 $res = $screen->getByIDTest($screenIDList[2], $yearList[1], $deptList[0], $accountList[0]);
 $chart = null;
 foreach($res->chartData->componentList as $item){
@@ -74,9 +74,9 @@ r($chart1 && $chart1->option->value == 'admin' && strpos($chart1->option->onChan
 r($maxHeight + 50 == $res->chartData->editCanvasConfig->height) && p('') && e(1);                                           //测试生成的图表高度是否正确
 r($res->chartData->requestGlobalConfig->requestInterval == 30) && p('') && e(1);                                            //测试生成的图表请求间隔是否正确
 
-$res = $screen->getByIDTest($screenIDList[6], $yearList[0], $deptList[0], $accountList[0]);
+$result = $screen->getByIDTest($screenIDList[6], $yearList[0], $deptList[0], $accountList[0]);
 $chart2 = null;
-foreach($res->chartData->componentList as $component)
+foreach($result->chartData->componentList as $component)
 {
     if(isset($component->chartConfig->package) && $component->chartConfig->package == 'Tables')
     {
diff --git a/module/screen/test/model/getlatestchart.php b/module/screen/test/model/getlatestchart.php
new file mode 100644
index 0000000000..6cc818375e
--- /dev/null
+++ b/module/screen/test/model/getlatestchart.php
@@ -0,0 +1,49 @@
+#!/usr/bin/env php
+<?php
+include dirname(__FILE__, 5) . '/test/lib/init.php';
+include dirname(__FILE__, 2) . '/screen.class.php';
+
+/**
+title=测试 screenModel->buildChart();
+cid=1
+pid=1
+
+当component->key为Select时，不会修改component    >> 1
+当component的sourceID不存在时，不会修改component >> 1
+当component的sourceID存在时，会修改component     >> 1
+
+*/
+
+$screen = new screenTest();
+
+$components = $screen->getAllComponent(array('key' => 'Select'));
+
+$component1  = current($components);
+$component1_ = clone($component1);
+$screen->getLatestChartTest($component1);
+r($component1 == $component1_) && p('') && e(1);  //当component->key为Select时，不会修改component
+
+foreach($components as $component)
+{
+    $chartID = zget($component->chartConfig, 'sourceID', '');
+    
+    if(!$chartID)
+    {
+        $component2 = $component;
+        break;
+    }
+}
+$component2_ = clone($component2);
+$screen->getLatestChartTest($component2);
+r($component2 && $component2 == $component2_) && p('') && e(1);  //当component的sourceID不存在时，不会修改component
+
+foreach($screen->componentList as $component)
+{
+    if(isset($component->key) && $component->key === 'Select') continue;
+    $chartID = zget($component->chartConfig, 'sourceID', '');
+    if(!$chartID) continue;
+    $component3 = $component;
+}
+$component3_ = clone($component3);
+$screen->getLatestChartTest($component3);
+r($component3 == $component3_) && p('') && e(1);  //当component的sourceID存在时，有可!能会修改component
diff --git a/module/screen/test/screen.class.php b/module/screen/test/screen.class.php
index 27ff222aac..6274a04e7d 100644
--- a/module/screen/test/screen.class.php
+++ b/module/screen/test/screen.class.php
@@ -282,4 +282,17 @@ class screenTest
             }
         }
     }
+
+    /**
+     * 测试getLatestChart。
+     * Test getLatestChart.
+     *
+     * @param  object $component
+     * @access public
+     * @return void
+     */
+    public function getLatestChartTest(object $component): void
+    {
+        $this->objectModel->getLatestChart($component);
+    }
 }