Make _systemTime() a public systemTime() function
diff --git a/lib/clock.dart b/lib/clock.dart
index 66f6b39..933dee8 100644
--- a/lib/clock.dart
+++ b/lib/clock.dart
@@ -17,7 +17,8 @@
/// Returns current time.
typedef DateTime TimeFunction();
-DateTime _systemTime() => new DateTime.now();
+/// Return current system time.
+DateTime systemTime() => new DateTime.now();
/// A predefined instance of [Clock] that's based on system clock.
const SYSTEM_CLOCK = const Clock();
@@ -41,7 +42,7 @@
/// Custom [timeFunc] can be useful in unit-tests. For example, you might
/// want to control what time it is now and set date and time expectations in
/// your test cases.
- const Clock([TimeFunction timeFunc = _systemTime]) : _time = timeFunc;
+ const Clock([TimeFunction timeFunc = systemTime]) : _time = timeFunc;
/// Creates [Clock] that returns fixed [time] value. Useful in unit-tests.
Clock.fixed(DateTime time) : _time = (() => time);
