updated plugin W3 Total Cache version 2.3.3

wp-content/plugins/w3-total-cache/vendor/guzzlehttp/psr7/tests/InflateStreamTest.php

@@ -0,0 +1,51 @@
+<?php
+
+namespace GuzzleHttp\Tests\Psr7;
+
+use GuzzleHttp\Psr7;
+use GuzzleHttp\Psr7\InflateStream;
+use GuzzleHttp\Psr7\NoSeekStream;
+
+class InflateStreamTest extends BaseTest
+{
+    public function testInflatesStreams()
+    {
+        $content = gzencode('test');
+        $a = Psr7\Utils::streamFor($content);
+        $b = new InflateStream($a);
+        self::assertSame('test', (string) $b);
+    }
+
+    public function testInflatesStreamsWithFilename()
+    {
+        $content = $this->getGzipStringWithFilename('test');
+        $a = Psr7\Utils::streamFor($content);
+        $b = new InflateStream($a);
+        self::assertSame('test', (string) $b);
+    }
+
+    public function testInflatesStreamsPreserveSeekable()
+    {
+        $content = $this->getGzipStringWithFilename('test');
+        $seekable = Psr7\Utils::streamFor($content);
+        $nonSeekable = new NoSeekStream(Psr7\Utils::streamFor($content));
+
+        self::assertTrue((new InflateStream($seekable))->isSeekable());
+        self::assertFalse((new InflateStream($nonSeekable))->isSeekable());
+    }
+
+    private function getGzipStringWithFilename($original_string)
+    {
+        $gzipped = bin2hex(gzencode($original_string));
+
+        $header = substr($gzipped, 0, 20);
+        // set FNAME flag
+        $header[6]=0;
+        $header[7]=8;
+        // make a dummy filename
+        $filename = '64756d6d7900';
+        $rest = substr($gzipped, 20);
+
+        return hex2bin($header . $filename . $rest);
+    }
+}