From 90d4fe2683b4d4367e21e9f09380d2a787c1d94a Mon Sep 17 00:00:00 2001
From: Richard Hallows <jeddy3@users.noreply.github.com>
Date: Mon, 18 May 2020 17:36:09 +0100
Subject: [PATCH] Fix TypeError for shorthand animation in
 time-min-milliseconds (#4783)

---
 .../time-min-milliseconds/__tests__/index.js   | 18 ++++++++++++++++++
 lib/rules/time-min-milliseconds/index.js       |  2 +-
 2 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/lib/rules/time-min-milliseconds/__tests__/index.js b/lib/rules/time-min-milliseconds/__tests__/index.js
index c8c666271a..ac8eed4592 100644
--- a/lib/rules/time-min-milliseconds/__tests__/index.js
+++ b/lib/rules/time-min-milliseconds/__tests__/index.js
@@ -9,6 +9,15 @@ testRule({
 	config: [MIN_VALUE],
 
 	accept: [
+		{
+			code: 'a { animation: none; }',
+		},
+		{
+			code: 'a { animation: none, my-animation; }',
+		},
+		{
+			code: 'a { transition: opacity var(--x) var(--y) ease-out }',
+		},
 		{
 			code: 'a { transition-delay: 0.1s; }',
 		},
@@ -314,6 +323,15 @@ testRule({
 	config: [MIN_VALUE, { ignore: ['delay'] }],
 
 	accept: [
+		{
+			code: 'a { animation: none; }',
+		},
+		{
+			code: 'a { animation: none, my-animation; }',
+		},
+		{
+			code: 'a { transition: opacity var(--x) var(--y) ease-out }',
+		},
 		{
 			code: 'a { transition-duration: 0.15s; }',
 		},
diff --git a/lib/rules/time-min-milliseconds/index.js b/lib/rules/time-min-milliseconds/index.js
index c0c6bd1bd2..7971a757b1 100644
--- a/lib/rules/time-min-milliseconds/index.js
+++ b/lib/rules/time-min-milliseconds/index.js
@@ -63,7 +63,7 @@ function rule(minimum, options) {
 						// Check only duration time values
 						const duration = getDuration(valueList);
 
-						if (!isAcceptableTime(duration)) {
+						if (duration && !isAcceptableTime(duration)) {
 							complain(decl, decl.value.indexOf(duration));
 						}
 					} else {