From 42e62a7eb2b890b7455903f65f4e20668d85baf0 Mon Sep 17 00:00:00 2001
From: David Anderson <danderson@tailscale.com>
Date: Fri, 17 Apr 2020 13:19:41 -0700
Subject: [PATCH] testy: fix clock initialization when Start is provided.

Signed-off-by: David Anderson <danderson@tailscale.com>
---
 testy/clock.go | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/testy/clock.go b/testy/clock.go
index 9bf77530a..8608a69e2 100644
--- a/testy/clock.go
+++ b/testy/clock.go
@@ -32,6 +32,8 @@ func (c *Clock) Now() time.Time {
 	defer c.Unlock()
 	if c.Start.IsZero() {
 		c.Start = time.Now()
+	}
+	if c.Present.Before(c.Start) {
 		c.Present = c.Start
 	}
 	step := c.Step