MAGETWO-71762: Bug fix, prevent displaying 0000-00-00 00:00:00 as anything else in admin grids #10598

Author: ishakhsuvarov

app/code/Magento/Ui/Component/Listing/Columns/Date.php

@@ -53,7 +53,9 @@ public function prepareDataSource(array $dataSource)
     {
         if (isset($dataSource['data']['items'])) {
             foreach ($dataSource['data']['items'] as & $item) {
-                if (isset($item[$this->getData('name')])) {
+                if (isset($item[$this->getData('name')])
+                   && $item[$this->getData('name')] !== "0000-00-00 00:00:00"
+                ) {
                     $date = $this->timezone->date(new \DateTime($item[$this->getData('name')]));
                     $timezone = isset($this->getConfiguration()['timezone'])
                         ? $this->booleanUtils->convert($this->getConfiguration()['timezone'])

app/code/Magento/Ui/Test/Unit/Component/Listing/Columns/DateTest.php

@@ -89,4 +89,14 @@ public function testPrepareDataSource()
         $result = $this->model->prepareDataSource(['data' => ['items' => [$item]]]);
         $this->assertEquals(self::TEST_TIME, $result['data']['items'][0]['field_name']);
     }
+
+    public function testPrepareDataSourceWithZeroDate()
+    {
+        $zeroDate = '0000-00-00 00:00:00';
+        $item = ['test_data' => 'some_data', 'field_name' => $zeroDate];
+        $this->timezoneMock->expects($this->never())->method('date');
+
+        $result = $this->model->prepareDataSource(['data' => ['items' => [$item]]]);
+        $this->assertEquals($zeroDate, $result['data']['items'][0]['field_name']);
+    }
 }