ext/standard/tests/file: add test with interleaved read/write/copy calls

Author: MaxKellermann

ext/standard/tests/file/stream_copy_to_stream_interleaved.phpt

@@ -0,0 +1,48 @@
+--TEST--
+stream_copy_to_stream() tests with interleaved read/write calls
+--FILE--
+<?php
+define('WIN', substr(PHP_OS, 0, 3) == 'WIN');
+
+$initial_file = __DIR__.'/bug38086.txt';
+$new_file = __DIR__.'/stream_copy_to_stream_interleaved.txt';
+
+$src = fopen($initial_file, 'r');
+
+$dest = fopen($new_file, 'w');
+
+var_dump(fread($src, 10));
+var_dump(fwrite($dest, "foo"));
+var_dump(stream_copy_to_stream($src, $dest, 10));
+var_dump(ftell($src));
+var_dump(ftell($dest));
+var_dump(fread($src, 10));
+var_dump(fwrite($dest, "bar"));
+var_dump(stream_copy_to_stream($src, $dest, 10));
+var_dump(ftell($src));
+var_dump(ftell($dest));
+fclose($src); fclose($dest);
+
+if (WIN) {
+  var_dump(str_replace("\r\n","\n", file_get_contents($new_file)));
+} else {
+  var_dump(file_get_contents($new_file));
+}
+unlink($new_file);
+
+echo "Done\n";
+?>
+--EXPECTF--
+string(10) "Another da"
+int(3)
+int(10)
+int(20)
+int(13)
+string(10) " pains of "
+int(3)
+int(10)
+int(40)
+int(26)
+string(26) "fooy
+When thebarlife won't"
+Done