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vendor/swoole/tests/swoole_buffer/buffer_substr.phpt

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+--TEST--
+swoole_buffer: read and write swoole_buffer
+--SKIPIF--
+<?php require __DIR__ . '/../include/skipif.inc'; ?>
+--INI--
+assert.active=1
+assert.warning=1
+assert.bail=0
+assert.quiet_eval=0
+
+--FILE--
+<?php
+require_once __DIR__ . '/../include/bootstrap.php';
+
+$buffer = new swoole_buffer();
+assert($buffer instanceof swoole_buffer);
+
+$data = "Test: write to swoole_buffer something.";
+$data_len = strlen($data);
+
+#write to swoole_buffer
+$write_len = $buffer->write(0, $data);
+assert($data_len === $write_len);
+
+$str = $buffer->substr(0);
+if (strcmp($data, $str) == 0) {
+    echo "SUCCESS";
+}
+
+?>
+
+--EXPECT--
+SUCCESS