test: add streaming compressed data with zstd_uncompress_dict()

Author: kjdev

tests/dictionary_02.phpt

@@ -0,0 +1,33 @@
+--TEST--
+zstd_uncompress_dict(): streaming compress
+--SKIPIF--
+<?php
+if (LIBZSTD_VERSION_NUMBER < 10304) die("skip needs libzstd 1.3.4");
+?>
+--FILE--
+<?php
+include(dirname(__FILE__) . '/data.inc');
+$dictionary = file_get_contents(dirname(__FILE__) . '/data.dic');
+
+$context = stream_context_create(
+    array(
+        'zstd' => array(
+            'dict'  => $dictionary,
+        )
+    )
+);
+
+$file = dirname(__FILE__) . '/data_' . basename(__FILE__, ".php") . '.out';
+file_put_contents('compress.zstd://' . $file, $data, context: $context);
+$enc = file_get_contents($file);
+
+$dec  = zstd_uncompress_dict($enc, $dictionary);
+
+var_dump($data === $dec);
+
+@unlink($file);
+?>
+===Done===
+--EXPECTF--
+bool(true)
+===Done===