Closes #3410

ChangeLog-7.4.md

@@ -2,6 +2,10 @@
 
 All notable changes of the PHPUnit 7.4 release series are documented in this file using the [Keep a CHANGELOG](http://keepachangelog.com/) principles.
 
+## [7.4.5] - 2018-MM-DD
+
+* Fixed [#3410](https://github.com/sebastianbergmann/phpunit/issues/3410): Parent directory of `cacheResultFile` is not created when it does not exist
+
 ## [7.4.4] - 2018-11-14
 
 ### Fixed
@@ -41,6 +45,7 @@ All notable changes of the PHPUnit 7.4 release series are documented in this fil
 * Implemented [#3284](https://github.com/sebastianbergmann/phpunit/issues/3284): Ability to reorder tests based on execution time
 * Implemented [#3290](https://github.com/sebastianbergmann/phpunit/issues/3290): Ability to load a PHP script before any code of PHPUnit itself is loaded
 
+[7.4.5]: https://github.com/sebastianbergmann/phpunit/compare/7.4.4...7.4.5
 [7.4.4]: https://github.com/sebastianbergmann/phpunit/compare/7.4.3...7.4.4
 [7.4.3]: https://github.com/sebastianbergmann/phpunit/compare/7.4.2...7.4.3
 [7.4.2]: https://github.com/sebastianbergmann/phpunit/compare/7.4.1...7.4.2

src/Util/TestResultCache.php

@@ -77,6 +77,15 @@ public function saveToFile(): void
             return;
         }
 
+        if (!$this->createDirectory(\dirname($this->cacheFilename))) {
+            throw new Exception(
+                \sprintf(
+                    'Cannot create directory "%s" for result cache file',
+                    $this->cacheFilename
+                )
+            );
+        }
+
         \file_put_contents(
             $this->cacheFilename,
             \serialize($this)
@@ -176,4 +185,9 @@ public function unserialize($serialized): void
             }
         }
     }
+
+    private function createDirectory(string $directory): bool
+    {
+        return !(!\is_dir($directory) && !@\mkdir($directory, 0777, true) && !\is_dir($directory));
+    }
 }