Add test for expiration of entries when most of the memory is available

Author: madmajestro

package.xml

@@ -74,6 +74,7 @@
     <file name="apc_024.phpt" role="test" />
     <file name="apc_025.phpt" role="test" />
     <file name="apc_026.phpt" role="test" />
+    <file name="apc_027.phpt" role="test" />
     <file name="apc_099.phpt" role="test" />
     <file name="apc54_014.phpt" role="test" />
     <file name="apc54_018.phpt" role="test" />

tests/apc_027.phpt

@@ -0,0 +1,33 @@
+--TEST--
+Test expiration of entries when > 50% of memory is available
+--SKIPIF--
+<?php
+require_once(__DIR__ . '/skipif.inc');
+if (!function_exists('apcu_inc_request_time')) die('skip APC debug build required');
+?>
+--INI--
+apc.enabled=1
+apc.enable_cli=1
+apc.use_request_time=1
+apc.ttl=1
+apc.shm_size=1M
+--FILE--
+<?php
+
+
+apcu_store("key_01", 123, 100);
+apcu_store("key_02", str_repeat('x', 400000), 1);
+
+apcu_inc_request_time(2);
+
+var_dump(apcu_store("key_03", str_repeat('x', 900000), 1));
+var_dump(apcu_fetch("key_01"));
+var_dump(apcu_fetch("key_02"));
+var_dump(apcu_fetch("key_03") === str_repeat('x', 900000));
+
+?>
+--EXPECT--
+bool(true)
+int(123)
+bool(false)
+bool(true)