Added test for 1 MB stream data

2026-02-19 08:36:39 +00:00 · 2019-09-14 04:11:33 +02:00
parent 8b583daa08
commit 67c8a0167c
2 changed files with 172 additions and 0 deletions
--- a/tests/methods/ExampleStream.php
+++ b/tests/methods/ExampleStream.php
@@ -0,0 +1,101 @@
+<?php
+
+namespace ParseCsv\tests\methods;
+
+/**
+ * This is a very simple implementation of a stream wrapper. All URLs are mapped
+ * to just one buffer. It exists to prove that ParseCsv can read and write
+ * streams.
+ *
+ * @see https://www.php.net/manual/en/class.streamwrapper.php
+ */
+class ExampleStream {
+
+    private static $position = 0;
+
+    private static $stream_content;
+
+    public function stream_open($uri, $mode) {
+        if (strpos($mode, 'a') === false) {
+            self::$position = 0;
+        }
+        if (strpos($mode, 'w') !== false) {
+            self::$stream_content = '';
+        }
+        return true;
+    }
+
+    public function stream_read($count) {
+        $ret = substr(self::$stream_content, self::$position, $count);
+        self::$position += strlen($ret);
+        return $ret;
+    }
+
+    public function stream_write($data) {
+        $left = substr(self::$stream_content, 0, self::$position);
+        $right = substr(self::$stream_content, self::$position + strlen($data));
+        self::$stream_content = $left . $data . $right;
+        self::$position += strlen($data);
+        return strlen($data);
+    }
+
+    public function stream_stat() {
+        return ['size' => strlen(self::$stream_content)];
+    }
+
+
+    public function stream_tell() {
+        return self::$position;
+    }
+
+    public function stream_eof() {
+        return self::$position >= strlen(self::$stream_content);
+    }
+
+    public function url_stat() {
+        return ['size' => strlen(self::$stream_content)];
+    }
+
+    public function stream_seek($offset, $whence) {
+        switch ($whence) {
+            case SEEK_SET:
+                if ($offset < strlen(self::$stream_content) && $offset >= 0) {
+                    self::$position = $offset;
+                    return true;
+                } else {
+                    return false;
+                }
+                break;
+
+            case SEEK_CUR:
+                if ($offset >= 0) {
+                    self::$position += $offset;
+                    return true;
+                } else {
+                    return false;
+                }
+                break;
+
+            case SEEK_END:
+                if (strlen(self::$stream_content) + $offset >= 0) {
+                    self::$position = strlen(self::$stream_content) + $offset;
+                    return true;
+                } else {
+                    return false;
+                }
+                break;
+
+            default:
+                return false;
+        }
+    }
+
+    public function stream_lock($operation) {
+        return true;
+    }
+
+    public function stream_metadata() {
+        return false;
+    }
+}
+