4323: Add tests for #4306 r=kjeremy a=lnicola

CC @kjeremy 

Co-authored-by: Laurențiu Nicola <lnicola@dend.ro>
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bors[bot] 2020-05-05 17:01:46 +00:00 committed by GitHub
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@ -1083,5 +1083,17 @@ mod tests {
assert_eq!(text, "the quick foxes\nDREAM\nthey have quiet dreams\nDON'T THEY?\n");
run(&mut text, c![0, 10; 1, 5 => "", 2, 0; 2, 12 => ""]);
assert_eq!(text, "the quick \nthey have quiet dreams\n");
text = String::from("❤️");
run(&mut text, c![0, 0; 0, 0 => "a"]);
assert_eq!(text, "a❤");
text = String::from("a\nb");
run(&mut text, c![0, 1; 1, 0 => "\nțc", 0, 1; 1, 1 => "d"]);
assert_eq!(text, "adcb");
text = String::from("a\nb");
run(&mut text, c![0, 1; 1, 0 => "ț\nc", 0, 2; 0, 2 => "c"]);
assert_eq!(text, "ațc\ncb");
}
}