diff --git a/kitty_tests/mouse.py b/kitty_tests/mouse.py
index 2b009944a..55d3b6bf6 100644
--- a/kitty_tests/mouse.py
+++ b/kitty_tests/mouse.py
@@ -67,9 +67,31 @@ class TestMouse(BaseTest):
         s.draw('ab cd')
         s.draw(' f gh')
         s.draw(' stuv')
+        s.draw('X Y')
         multi_click(x=1)
         self.ae(sel(), 'ab')
         move(3)
         self.ae(sel(), 'ab cd')
         release(3, 1)
         self.ae(sel(), 'ab cd f gh')
+        multi_click(x=1, y=2)
+        self.ae(sel(), 'stuvX')
+        release()
+
+        # Line select with drag
+        s.reset()
+        s.draw('1 2 3')
+        s.linefeed(), s.carriage_return()
+        s.draw('4 5 6')
+        s.linefeed(), s.carriage_return()
+        s.draw('7 8 9X')
+        multi_click(x=1, count=3)
+        self.ae(sel(), str(s.line(0)))
+        move(y=1)
+        self.ae(sel(), '1 2 3\n4 5 6')
+        move(y=2)
+        self.ae(sel(), '1 2 3\n4 5 6\n7 8 9X')
+        move(y=1)
+        self.ae(sel(), '1 2 3\n4 5 6')
+        move()
+        self.ae(sel(), str(s.line(0)))