use platform-specific directory separator in tests

Author: jiripudil

tests/Framework/Assert.snapshot.phpt

@@ -8,7 +8,7 @@ use Tester\Snapshot;
 
 require __DIR__ . '/../bootstrap.php';
 
-Snapshot::$snapshotDir = __DIR__ . '/fixtures';
+Snapshot::$snapshotDir = __DIR__ . DIRECTORY_SEPARATOR . 'fixtures';
 
 Assert::snapshot('existingSnapshot', ['answer' => 42]);
 

tests/Framework/Assert.snapshot.update.phpt

@@ -10,27 +10,27 @@ use Tester\Snapshot;
 require __DIR__ . '/../bootstrap.php';
 
 putenv(Environment::UPDATE_SNAPSHOTS . '=1');
-Snapshot::$snapshotDir = __DIR__ . '/snapshots';
+Snapshot::$snapshotDir = __DIR__ . DIRECTORY_SEPARATOR . 'snapshots';
 Helpers::purge(Snapshot::$snapshotDir);
 
 // newly created
 
-Assert::false(file_exists(Snapshot::$snapshotDir . '/Assert.snapshot.update.newSnapshot.phps'));
+Assert::false(file_exists(Snapshot::$snapshotDir . DIRECTORY_SEPARATOR . 'Assert.snapshot.update.newSnapshot.phps'));
 Assert::snapshot('newSnapshot', ['answer' => 42]);
-Assert::true(file_exists(Snapshot::$snapshotDir . '/Assert.snapshot.update.newSnapshot.phps'));
-Assert::contains('42', file_get_contents(Snapshot::$snapshotDir . '/Assert.snapshot.update.newSnapshot.phps'));
+Assert::true(file_exists(Snapshot::$snapshotDir . DIRECTORY_SEPARATOR . 'Assert.snapshot.update.newSnapshot.phps'));
+Assert::contains('42', file_get_contents(Snapshot::$snapshotDir . DIRECTORY_SEPARATOR . 'Assert.snapshot.update.newSnapshot.phps'));
 
 // existing
 
 file_put_contents(
-	Snapshot::$snapshotDir . '/Assert.snapshot.update.updatedSnapshot.phps',
+	Snapshot::$snapshotDir . DIRECTORY_SEPARATOR . 'Assert.snapshot.update.updatedSnapshot.phps',
 	'<?php return array(\'answer\' => 43);' . PHP_EOL
 );
 
-Assert::true(file_exists(Snapshot::$snapshotDir . '/Assert.snapshot.update.updatedSnapshot.phps'));
+Assert::true(file_exists(Snapshot::$snapshotDir . DIRECTORY_SEPARATOR . 'Assert.snapshot.update.updatedSnapshot.phps'));
 Assert::snapshot('updatedSnapshot', ['answer' => 42]);
-Assert::true(file_exists(Snapshot::$snapshotDir . '/Assert.snapshot.update.updatedSnapshot.phps'));
-Assert::contains('42', file_get_contents(Snapshot::$snapshotDir . '/Assert.snapshot.update.updatedSnapshot.phps'));
+Assert::true(file_exists(Snapshot::$snapshotDir . DIRECTORY_SEPARATOR . 'Assert.snapshot.update.updatedSnapshot.phps'));
+Assert::contains('42', file_get_contents(Snapshot::$snapshotDir . DIRECTORY_SEPARATOR . 'Assert.snapshot.update.updatedSnapshot.phps'));
 
 // Snapshot::$updatedSnapshots