tests: add a test about selection keeping up while text is scrolling

tests/selection_scrolls.sh

@@ -0,0 +1,47 @@
+#!/bin/sh
+
+# char width: 7
+# char height: 15
+
+# clear screen
+printf '\033[2J'
+
+# set color
+printf '\033[46;31;3m'
+
+#move to 2,0
+printf '\033[2H'
+
+# set text
+TEXT="The path of the righteous man is beset on all sides by the iniquities of the selfish and the tyranny of evil men. Blessed is he who, in the name of charity and good will, shepherds the weak through the valley of darkness, for he is truly his brother's keeper and the finder of lost children. And I will strike down upon thee with great vengeance and furious anger those who would attempt to poison and destroy My brothers. And you will know My name is the Lord when I lay My vengeance upon thee."
+
+# display text
+printf "%s\r\n%s\r\n%s" "$TEXT" "$TEXT" "$TEXT"
+
+
+# mouse down to start selection
+printf '\033}td;10;325;1;0;0\0'
+# mouse move
+printf '\033}tm;100;325;0\0'
+# mouse up
+printf '\033}tu;100;325;1;0;0\0'
+# force render
+printf '\033}tr\0'
+# selection is
+printf '\033}tsnce upon thee.\0'
+
+# scroll 20 lines
+for _ in $(seq 20); do
+   printf '\r\n'
+done
+
+# selection is
+printf '\033}tsnce upon thee.\0'
+
+# scroll 20 lines
+for _ in $(seq 20); do
+   printf '\r\n'
+done
+
+# selection is no longer active
+printf '\033}tn\0'

tests/tests.results

@@ -85,3 +85,4 @@ selection_drag.sh d52ca96d26bdc7b77cd815870c07195a
 selection_box_drag.sh d52ca96d26bdc7b77cd815870c07195a
 selection_double_click.sh 8a9cd9ab55dacf0b2eef17d9bc57cd17
 selection_triple_click.sh 5b9bafc5802342ff3ee2bc6a8629cbe0
+selection_scrolls.sh 0cccd9abeeefb41b7cc6ca3350bfab7c