1 files changed, 43 insertions, 0 deletions
diff --git a/ext/standard/tests/general_functions/usleep_basic.phpt b/ext/standard/tests/general_functions/usleep_basic.phpt
new file mode 100644
index 0000000..d6f312e
--- /dev/null
+++ b/ext/standard/tests/general_functions/usleep_basic.phpt
@@ -0,0 +1,43 @@
+--TEST--
+Test usleep() function
+--SKIPIF--
+<?php
+if (getenv("SKIP_SLOW_TESTS")) die("skip slow test");
+?>
+--FILE--
+<?php
+/* Prototype  : void usleep  ( int $micro_seconds  )
+ * Description: Delays program execution for the given number of micro seconds. 
+ * Source code: ext/standard/basic_functions.c
+ */
+ 
+set_time_limit(20);
+ 
+echo "*** Testing usleep() : basic functionality ***\n";
+
+$sleeptime = 5000000; // == 5 seconds
+// Test passes if sleeps for at least 98% of specified time 
+$sleeplow = $sleeptime - ($sleeptime * 2 /100);
+
+$time_start = microtime(true);
+
+// Sleep for a while
+usleep($sleeptime);
+
+$time_end = microtime(true);
+$time = ($time_end - $time_start) * 1000 * 1000;
+
+echo "Thread slept for " . $time . " micro-seconds\n";
+
+if ($time >= $sleeplow) {
+	echo "TEST PASSED\n";
+} else {
+	echo "TEST FAILED\n";
+}
+?>
+===DONE===
+--EXPECTF--
+*** Testing usleep() : basic functionality ***
+Thread slept for %f micro-seconds
+TEST PASSED
+===DONE===