From 0af728ffeeba35cc7b264f3d9b8890469db1e861 Mon Sep 17 00:00:00 2001
From: webzwo0i <webzwo0i@c3d2.de>
Date: Sun, 31 Oct 2021 00:24:00 +0200
Subject: [PATCH] textLinesMutator: coverage for changed attributes in
 multiline keeps

---
 src/tests/frontend/specs/easysync-mutations.js | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/tests/frontend/specs/easysync-mutations.js b/src/tests/frontend/specs/easysync-mutations.js
index 7cf43c8b7..06aa63dab 100644
--- a/src/tests/frontend/specs/easysync-mutations.js
+++ b/src/tests/frontend/specs/easysync-mutations.js
@@ -188,6 +188,15 @@ describe('easysync-mutations', function () {
 
     testMutateTextLines(1, 'Z:4<1|1-2-1|1+1+1$\nc', ['a\n', 'b\n'], ['\n', 'c\n']);
     testMutateTextLines(2, 'Z:4>0|1-2-1|2+3$\nc\n', ['a\n', 'b\n'], ['\n', 'c\n', '\n']);
+
+    it('mutate keep only lines', async function () {
+      const lines = ['1\n', '2\n', '3\n', '4\n'];
+      const result = lines.slice();
+      const cs = 'Z:8>0*0|1=2|2=2';
+
+      Changeset.mutateTextLines(cs, lines);
+      expect(result).to.eql(lines);
+    });
   });
 
   describe('mutate attributions', function () {