ext/standard: Fix test conflict with I/O tests

Closes GH-14428

Author: Girgias

ext/standard/tests/filters/stream_filter_remove_basic.phpt

@@ -9,7 +9,7 @@ if(! in_array( "string.rot13", $filters )) die( "skip rot13 filter not available
 <?php
 echo "*** Testing stream_filter_remove() : basic functionality ***\n";
 
-$file = __DIR__ . DIRECTORY_SEPARATOR . 'streamfilterTest.txt';
+$file = __DIR__ . DIRECTORY_SEPARATOR . 'streamfilterTestBasics.txt';
 touch( $file );
 
 $fp = fopen( $file, 'w+' );
@@ -27,10 +27,8 @@ fclose( $fp );
 ?>
 --CLEAN--
 <?php
-
-$file = __DIR__ . DIRECTORY_SEPARATOR . 'streamfilterTest.txt';
-unlink( $file );
-
+$file = __DIR__ . DIRECTORY_SEPARATOR . 'streamfilterTestBasics.txt';
+@unlink($file);
 ?>
 --EXPECT--
 *** Testing stream_filter_remove() : basic functionality ***

ext/standard/tests/filters/stream_filter_remove_error.phpt

@@ -7,7 +7,7 @@ if(! in_array( "string.rot13", $filters )) die( "skip rot13 filter not available
 ?>
 --FILE--
 <?php
-$file = __DIR__ . DIRECTORY_SEPARATOR . 'streamfilterTest.txt';
+$file = __DIR__ . DIRECTORY_SEPARATOR . 'streamfilterTestErrors.txt';
 touch( $file );
 $fp = fopen( $file, 'w+' );
 $filter = stream_filter_append( $fp, "string.rot13", STREAM_FILTER_WRITE );
@@ -35,10 +35,8 @@ fclose( $fp );
 ?>
 --CLEAN--
 <?php
-
-$file = __DIR__ . DIRECTORY_SEPARATOR . 'streamfilterTest.txt';
-unlink( $file );
-
+$file = __DIR__ . DIRECTORY_SEPARATOR . 'streamfilterTestErrors.txt';
+@unlink($file);
 ?>
 --EXPECT--
 *** Testing stream_filter_remove() : error conditions ***