We still have to support PHP 7.1 :-(

lbajsarowicz · lbajsarowicz · commit 47fd2e68d2f9 · 2020-01-06T01:35:08.000+01:00
diff --git a/src/Magento/FunctionalTestingFramework/Util/TestGenerator.php b/src/Magento/FunctionalTestingFramework/Util/TestGenerator.php
@@ -1938,10 +1938,10 @@ private function validateParameterArray($paramArray)
      *
      * @param string|null $value
      * @param string|null $type
-     * @return string
+     * @return string|null
      * @throws TestReferenceException
      */
-    private function resolveValueByType($value = null, $type = null): ?string
+    private function resolveValueByType($value = null, $type = null)
     {
         if (null === $value) {
             return null;

Original file line number	Diff line number	Diff line change
`@@ -1938,10 +1938,10 @@ private function validateParameterArray($paramArray)`
`1938`	`1938`	`*`
`1939`	`1939`	`* @param string\|null $value`
`1940`	`1940`	`* @param string\|null $type`
`1941`		`- * @return string`
	`1941`	`+ * @return string\|null`
`1942`	`1942`	`* @throws TestReferenceException`
`1943`	`1943`	`*/`
`1944`		`- private function resolveValueByType($value = null, $type = null): ?string`
	`1944`	`+ private function resolveValueByType($value = null, $type = null)`
`1945`	`1945`	`{`
`1946`	`1946`	`if (null === $value) {`
`1947`	`1947`	`return null;`