[Form] Hardened test suite for empty data (following for 3.4)

HeahDude · HeahDude · commit 0bccb16f8ca5 · 2018-11-11T19:21:04.000+01:00
diff --git a/src/Symfony/Component/Form/Tests/Extension/Core/Type/DateIntervalTypeTest.php b/src/Symfony/Component/Form/Tests/Extension/Core/Type/DateIntervalTypeTest.php
@@ -410,4 +410,17 @@ public function testSubmitNull($expected = null, $norm = null, $view = null)
             'days' => '',
         ));
     }
+
+    public function testSubmitNullUsesDefaultEmptyData($emptyData = array(), $expectedData = null)
+    {
+        $form = $this->factory->create(static::TESTED_TYPE, null, array(
+            'empty_data' => $emptyData,
+        ));
+        $form->submit(null);
+
+        // view transformer writes back empty strings in the view data
+        $this->assertSame(array('years' => '', 'months' => '', 'days' => ''), $form->getViewData());
+        $this->assertSame($expectedData, $form->getNormData());
+        $this->assertSame($expectedData, $form->getData());
+    }
 }
