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Region scrolling tests

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This commit is contained in:
Sean Estabrooks 2024-09-27 13:07:03 -04:00 committed by Wez Furlong
parent 4050072da2
commit b2889fe889
1 changed files with 108 additions and 0 deletions
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108
term/src/test/mod.rs
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@ -1181,6 +1181,114 @@ fn test_1573() {
assert_eq!(graphemes, vec![sequence]);
}
#[test]
fn test_region_scroll() {
let mut term = TestTerm::new(5, 1, 10);
term.print("1\n2\n3\n4\n5");
// Test scroll region that doesn't start on first row, scrollback not used
term.set_scroll_region(1, 2);
term.cup(0, 2);
let seqno = term.current_seqno();
term.print("\na");
assert_all_contents(&term, file!(), line!(), &["1", "3", "a", "4", "5"]);
term.assert_dirty_lines(seqno, &[1, 2], None);
assert_eq!(term.screen().visible_row_to_stable_row(0), 0);
assert_eq!(term.screen().visible_row_to_stable_row(4), 4);
// Scroll region starting on first row, but is smaller than screen (see #6099)
// Scrollback will be used, which means lines below the scroll region
// have their stable index invalidated, and so need to be marked dirty
term.set_scroll_region(0, 1);
term.cup(0, 1);
let seqno = term.current_seqno();
term.print("\nb");
assert_all_contents(&term, file!(), line!(), &["1", "3", "b", "a", "4", "5"]);
term.assert_dirty_lines(seqno, &[2, 3, 4, 5], None);
assert_eq!(term.screen().visible_row_to_stable_row(0), 1);
assert_eq!(term.screen().visible_row_to_stable_row(4), 5);
// Test deletion of more lines than exist in scroll region
term.cup(0, 1);
let seqno = term.current_seqno();
term.delete_lines(3);
assert_all_contents(&term, file!(), line!(), &["1", "3", "", "a", "4", "5"]);
term.assert_dirty_lines(seqno, &[2], None);
assert_eq!(term.screen().visible_row_to_stable_row(0), 1);
assert_eq!(term.screen().visible_row_to_stable_row(4), 5);
// Return to normal, entire-screen scrolling, optimal number of lines marked dirty
term.set_scroll_region(0, 4);
term.cup(0, 4);
let seqno = term.current_seqno();
term.print("\nX");
assert_all_contents(&term, file!(), line!(), &["1", "3", "", "a", "4", "5", "X"]);
term.assert_dirty_lines(seqno, &[6], None);
assert_eq!(term.screen().visible_row_to_stable_row(4), 6);
}
#[test]
fn test_alt_screen_region_scroll() {
// Test that scrollback is never used, and lines below the scroll region
// aren't made dirty or invalid. Only the scroll region is marked dirty.
let mut term = TestTerm::new(5, 1, 10);
term.print("M\no\nn\nk\ne\ny");
// Enter alternate-screen mode, saving current state
term.set_mode("?1049", true);
term.print("1\n2\n3\n4\n5");
// Test scroll region that doesn't start on first row
term.set_scroll_region(1, 2);
term.cup(0, 2);
let seqno = term.current_seqno();
term.print("\na");
assert_all_contents(&term, file!(), line!(), &["1", "3", "a", "4", "5"]);
term.assert_dirty_lines(seqno, &[1, 2], None);
assert_eq!(term.screen().visible_row_to_stable_row(4), 4);
// Test scroll region that starts on first row, still no scrollback
term.set_scroll_region(0, 1);
term.cup(0, 1);
let seqno = term.current_seqno();
term.print("\nb");
assert_all_contents(&term, file!(), line!(), &["3", "b", "a", "4", "5"]);
term.assert_dirty_lines(seqno, &[0, 1], None);
assert_eq!(term.screen().visible_row_to_stable_row(4), 4);
// Return to normal, entire-screen scrolling
// Not optimal, the entire screen is marked dirty for every line scrolled
term.set_scroll_region(0, 4);
term.cup(0, 4);
let seqno = term.current_seqno();
term.print("\nX");
assert_all_contents(&term, file!(), line!(), &["b", "a", "4", "5", "X"]);
term.assert_dirty_lines(seqno, &[0, 1, 2, 3, 4], None);
assert_eq!(term.screen().visible_row_to_stable_row(4), 4);
// Leave alternate-mode and ensure screen is restored, with all lines marked dirty
let seqno = term.current_seqno();
term.set_mode("?1049", false);
assert_all_contents(&term, file!(), line!(), &["M", "o", "n", "k", "e", "y"]);
term.assert_dirty_lines(seqno, &[0, 1, 2, 3, 4], None);
assert_eq!(term.screen().visible_row_to_stable_row(0), 1);
}
#[test]
fn test_region_scrollback_limit() {
// Ensure scrollback is truncated properly, when it reaches the line limit
let mut term = TestTerm::new(4, 1, 2);
term.print("1\n2\n3\n4");
term.set_scroll_region(0, 1);
term.cup(0, 1);
let seqno = term.current_seqno();
term.print("A\nB\nC\nD");
assert_all_contents(&term, file!(), line!(), &["A", "B", "C", "D", "3", "4"]);
term.assert_dirty_lines(seqno, &[0, 1, 2, 3, 4, 5], None);
assert_eq!(term.screen().visible_row_to_stable_row(4), 7);
}
#[test]
fn test_hyperlinks() {
let mut term = TestTerm::new(3, 5, 0);