364 lines
11 KiB
Rust
364 lines
11 KiB
Rust
//! Tests for the Grid.
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use super::*;
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use crate::term::cell::Cell;
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impl GridCell for usize {
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fn is_empty(&self) -> bool {
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*self == 0
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}
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fn reset(&mut self, template: &Self) {
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*self = *template;
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}
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fn flags(&self) -> &Flags {
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unimplemented!();
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}
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fn flags_mut(&mut self) -> &mut Flags {
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unimplemented!();
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}
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}
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// Scroll up moves lines upward.
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#[test]
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fn scroll_up() {
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let mut grid = Grid::<usize>::new(10, 1, 0);
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for i in 0..10 {
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grid[Line(i as i32)][Column(0)] = i;
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}
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grid.scroll_up::<usize>(&(Line(0)..Line(10)), 2);
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assert_eq!(grid[Line(0)][Column(0)], 2);
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assert_eq!(grid[Line(0)].occ, 1);
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assert_eq!(grid[Line(1)][Column(0)], 3);
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assert_eq!(grid[Line(1)].occ, 1);
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assert_eq!(grid[Line(2)][Column(0)], 4);
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assert_eq!(grid[Line(2)].occ, 1);
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assert_eq!(grid[Line(3)][Column(0)], 5);
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assert_eq!(grid[Line(3)].occ, 1);
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assert_eq!(grid[Line(4)][Column(0)], 6);
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assert_eq!(grid[Line(4)].occ, 1);
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assert_eq!(grid[Line(5)][Column(0)], 7);
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assert_eq!(grid[Line(5)].occ, 1);
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assert_eq!(grid[Line(6)][Column(0)], 8);
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assert_eq!(grid[Line(6)].occ, 1);
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assert_eq!(grid[Line(7)][Column(0)], 9);
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assert_eq!(grid[Line(7)].occ, 1);
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assert_eq!(grid[Line(8)][Column(0)], 0); // was 0.
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assert_eq!(grid[Line(8)].occ, 0);
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assert_eq!(grid[Line(9)][Column(0)], 0); // was 1.
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assert_eq!(grid[Line(9)].occ, 0);
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}
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// Scroll down moves lines downward.
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#[test]
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fn scroll_down() {
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let mut grid = Grid::<usize>::new(10, 1, 0);
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for i in 0..10 {
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grid[Line(i as i32)][Column(0)] = i;
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}
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grid.scroll_down::<usize>(&(Line(0)..Line(10)), 2);
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assert_eq!(grid[Line(0)][Column(0)], 0); // was 8.
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assert_eq!(grid[Line(0)].occ, 0);
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assert_eq!(grid[Line(1)][Column(0)], 0); // was 9.
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assert_eq!(grid[Line(1)].occ, 0);
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assert_eq!(grid[Line(2)][Column(0)], 0);
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assert_eq!(grid[Line(2)].occ, 1);
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assert_eq!(grid[Line(3)][Column(0)], 1);
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assert_eq!(grid[Line(3)].occ, 1);
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assert_eq!(grid[Line(4)][Column(0)], 2);
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assert_eq!(grid[Line(4)].occ, 1);
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assert_eq!(grid[Line(5)][Column(0)], 3);
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assert_eq!(grid[Line(5)].occ, 1);
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assert_eq!(grid[Line(6)][Column(0)], 4);
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assert_eq!(grid[Line(6)].occ, 1);
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assert_eq!(grid[Line(7)][Column(0)], 5);
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assert_eq!(grid[Line(7)].occ, 1);
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assert_eq!(grid[Line(8)][Column(0)], 6);
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assert_eq!(grid[Line(8)].occ, 1);
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assert_eq!(grid[Line(9)][Column(0)], 7);
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assert_eq!(grid[Line(9)].occ, 1);
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}
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#[test]
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fn scroll_down_with_history() {
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let mut grid = Grid::<usize>::new(10, 1, 1);
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grid.increase_scroll_limit(1);
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for i in 0..10 {
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grid[Line(i as i32)][Column(0)] = i;
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}
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grid.scroll_down::<usize>(&(Line(0)..Line(10)), 2);
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assert_eq!(grid[Line(0)][Column(0)], 0); // was 8.
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assert_eq!(grid[Line(0)].occ, 0);
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assert_eq!(grid[Line(1)][Column(0)], 0); // was 9.
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assert_eq!(grid[Line(1)].occ, 0);
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assert_eq!(grid[Line(2)][Column(0)], 0);
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assert_eq!(grid[Line(2)].occ, 1);
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assert_eq!(grid[Line(3)][Column(0)], 1);
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assert_eq!(grid[Line(3)].occ, 1);
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assert_eq!(grid[Line(4)][Column(0)], 2);
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assert_eq!(grid[Line(4)].occ, 1);
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assert_eq!(grid[Line(5)][Column(0)], 3);
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assert_eq!(grid[Line(5)].occ, 1);
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assert_eq!(grid[Line(6)][Column(0)], 4);
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assert_eq!(grid[Line(6)].occ, 1);
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assert_eq!(grid[Line(7)][Column(0)], 5);
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assert_eq!(grid[Line(7)].occ, 1);
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assert_eq!(grid[Line(8)][Column(0)], 6);
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assert_eq!(grid[Line(8)].occ, 1);
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assert_eq!(grid[Line(9)][Column(0)], 7);
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assert_eq!(grid[Line(9)].occ, 1);
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}
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// Test that GridIterator works.
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#[test]
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fn test_iter() {
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let assert_indexed = |value: usize, indexed: Option<Indexed<&usize>>| {
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assert_eq!(Some(&value), indexed.map(|indexed| indexed.cell));
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};
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let mut grid = Grid::<usize>::new(5, 5, 0);
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for i in 0..5 {
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for j in 0..5 {
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grid[Line(i)][Column(j)] = i as usize * 5 + j;
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}
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}
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let mut iter = grid.iter_from(Point::new(Line(0), Column(0)));
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assert_eq!(None, iter.prev());
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assert_indexed(1, iter.next());
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assert_eq!(Column(1), iter.point().column);
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assert_eq!(0, iter.point().line);
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assert_indexed(2, iter.next());
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assert_indexed(3, iter.next());
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assert_indexed(4, iter.next());
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// Test line-wrapping.
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assert_indexed(5, iter.next());
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assert_eq!(Column(0), iter.point().column);
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assert_eq!(1, iter.point().line);
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assert_indexed(4, iter.prev());
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assert_eq!(Column(4), iter.point().column);
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assert_eq!(0, iter.point().line);
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// Make sure iter.cell() returns the current iterator position.
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assert_eq!(&4, iter.cell());
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// Test that iter ends at end of grid.
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let mut final_iter = grid.iter_from(Point { line: Line(4), column: Column(4) });
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assert_eq!(None, final_iter.next());
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assert_indexed(23, final_iter.prev());
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}
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#[test]
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fn shrink_reflow() {
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let mut grid = Grid::<Cell>::new(1, 5, 2);
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grid[Line(0)][Column(0)] = cell('1');
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grid[Line(0)][Column(1)] = cell('2');
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grid[Line(0)][Column(2)] = cell('3');
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grid[Line(0)][Column(3)] = cell('4');
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grid[Line(0)][Column(4)] = cell('5');
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grid.resize(true, 1, 2);
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assert_eq!(grid.total_lines(), 3);
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assert_eq!(grid[Line(-2)].len(), 2);
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assert_eq!(grid[Line(-2)][Column(0)], cell('1'));
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assert_eq!(grid[Line(-2)][Column(1)], wrap_cell('2'));
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assert_eq!(grid[Line(-1)].len(), 2);
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assert_eq!(grid[Line(-1)][Column(0)], cell('3'));
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assert_eq!(grid[Line(-1)][Column(1)], wrap_cell('4'));
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assert_eq!(grid[Line(0)].len(), 2);
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assert_eq!(grid[Line(0)][Column(0)], cell('5'));
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assert_eq!(grid[Line(0)][Column(1)], Cell::default());
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}
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#[test]
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fn shrink_reflow_twice() {
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let mut grid = Grid::<Cell>::new(1, 5, 2);
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grid[Line(0)][Column(0)] = cell('1');
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grid[Line(0)][Column(1)] = cell('2');
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grid[Line(0)][Column(2)] = cell('3');
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grid[Line(0)][Column(3)] = cell('4');
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grid[Line(0)][Column(4)] = cell('5');
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grid.resize(true, 1, 4);
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grid.resize(true, 1, 2);
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assert_eq!(grid.total_lines(), 3);
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assert_eq!(grid[Line(-2)].len(), 2);
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assert_eq!(grid[Line(-2)][Column(0)], cell('1'));
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assert_eq!(grid[Line(-2)][Column(1)], wrap_cell('2'));
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assert_eq!(grid[Line(-1)].len(), 2);
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assert_eq!(grid[Line(-1)][Column(0)], cell('3'));
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assert_eq!(grid[Line(-1)][Column(1)], wrap_cell('4'));
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assert_eq!(grid[Line(0)].len(), 2);
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assert_eq!(grid[Line(0)][Column(0)], cell('5'));
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assert_eq!(grid[Line(0)][Column(1)], Cell::default());
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}
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#[test]
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fn shrink_reflow_empty_cell_inside_line() {
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let mut grid = Grid::<Cell>::new(1, 5, 3);
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grid[Line(0)][Column(0)] = cell('1');
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grid[Line(0)][Column(1)] = Cell::default();
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grid[Line(0)][Column(2)] = cell('3');
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grid[Line(0)][Column(3)] = cell('4');
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grid[Line(0)][Column(4)] = Cell::default();
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grid.resize(true, 1, 2);
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assert_eq!(grid.total_lines(), 2);
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assert_eq!(grid[Line(-1)].len(), 2);
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assert_eq!(grid[Line(-1)][Column(0)], cell('1'));
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assert_eq!(grid[Line(-1)][Column(1)], wrap_cell(' '));
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assert_eq!(grid[Line(0)].len(), 2);
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assert_eq!(grid[Line(0)][Column(0)], cell('3'));
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assert_eq!(grid[Line(0)][Column(1)], cell('4'));
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grid.resize(true, 1, 1);
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assert_eq!(grid.total_lines(), 4);
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assert_eq!(grid[Line(-3)].len(), 1);
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assert_eq!(grid[Line(-3)][Column(0)], wrap_cell('1'));
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assert_eq!(grid[Line(-2)].len(), 1);
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assert_eq!(grid[Line(-2)][Column(0)], wrap_cell(' '));
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assert_eq!(grid[Line(-1)].len(), 1);
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assert_eq!(grid[Line(-1)][Column(0)], wrap_cell('3'));
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assert_eq!(grid[Line(0)].len(), 1);
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assert_eq!(grid[Line(0)][Column(0)], cell('4'));
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}
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#[test]
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fn grow_reflow() {
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let mut grid = Grid::<Cell>::new(2, 2, 0);
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grid[Line(0)][Column(0)] = cell('1');
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grid[Line(0)][Column(1)] = wrap_cell('2');
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grid[Line(1)][Column(0)] = cell('3');
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grid[Line(1)][Column(1)] = Cell::default();
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grid.resize(true, 2, 3);
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assert_eq!(grid.total_lines(), 2);
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assert_eq!(grid[Line(0)].len(), 3);
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assert_eq!(grid[Line(0)][Column(0)], cell('1'));
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assert_eq!(grid[Line(0)][Column(1)], cell('2'));
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assert_eq!(grid[Line(0)][Column(2)], cell('3'));
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// Make sure rest of grid is empty.
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assert_eq!(grid[Line(1)].len(), 3);
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assert_eq!(grid[Line(1)][Column(0)], Cell::default());
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assert_eq!(grid[Line(1)][Column(1)], Cell::default());
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assert_eq!(grid[Line(1)][Column(2)], Cell::default());
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}
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#[test]
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fn grow_reflow_multiline() {
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let mut grid = Grid::<Cell>::new(3, 2, 0);
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grid[Line(0)][Column(0)] = cell('1');
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grid[Line(0)][Column(1)] = wrap_cell('2');
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grid[Line(1)][Column(0)] = cell('3');
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grid[Line(1)][Column(1)] = wrap_cell('4');
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grid[Line(2)][Column(0)] = cell('5');
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grid[Line(2)][Column(1)] = cell('6');
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grid.resize(true, 3, 6);
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assert_eq!(grid.total_lines(), 3);
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assert_eq!(grid[Line(0)].len(), 6);
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assert_eq!(grid[Line(0)][Column(0)], cell('1'));
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assert_eq!(grid[Line(0)][Column(1)], cell('2'));
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assert_eq!(grid[Line(0)][Column(2)], cell('3'));
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assert_eq!(grid[Line(0)][Column(3)], cell('4'));
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assert_eq!(grid[Line(0)][Column(4)], cell('5'));
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assert_eq!(grid[Line(0)][Column(5)], cell('6'));
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// Make sure rest of grid is empty.
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for r in (1..3).map(Line::from) {
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assert_eq!(grid[r].len(), 6);
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for c in 0..6 {
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assert_eq!(grid[r][Column(c)], Cell::default());
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}
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}
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}
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#[test]
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fn grow_reflow_disabled() {
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let mut grid = Grid::<Cell>::new(2, 2, 0);
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grid[Line(0)][Column(0)] = cell('1');
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grid[Line(0)][Column(1)] = wrap_cell('2');
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grid[Line(1)][Column(0)] = cell('3');
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grid[Line(1)][Column(1)] = Cell::default();
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grid.resize(false, 2, 3);
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assert_eq!(grid.total_lines(), 2);
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assert_eq!(grid[Line(0)].len(), 3);
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assert_eq!(grid[Line(0)][Column(0)], cell('1'));
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assert_eq!(grid[Line(0)][Column(1)], wrap_cell('2'));
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assert_eq!(grid[Line(0)][Column(2)], Cell::default());
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assert_eq!(grid[Line(1)].len(), 3);
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assert_eq!(grid[Line(1)][Column(0)], cell('3'));
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assert_eq!(grid[Line(1)][Column(1)], Cell::default());
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assert_eq!(grid[Line(1)][Column(2)], Cell::default());
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}
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#[test]
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fn shrink_reflow_disabled() {
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let mut grid = Grid::<Cell>::new(1, 5, 2);
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grid[Line(0)][Column(0)] = cell('1');
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grid[Line(0)][Column(1)] = cell('2');
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grid[Line(0)][Column(2)] = cell('3');
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grid[Line(0)][Column(3)] = cell('4');
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grid[Line(0)][Column(4)] = cell('5');
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grid.resize(false, 1, 2);
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assert_eq!(grid.total_lines(), 1);
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assert_eq!(grid[Line(0)].len(), 2);
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assert_eq!(grid[Line(0)][Column(0)], cell('1'));
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assert_eq!(grid[Line(0)][Column(1)], cell('2'));
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}
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// https://github.com/rust-lang/rust-clippy/pull/6375
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#[allow(clippy::all)]
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fn cell(c: char) -> Cell {
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let mut cell = Cell::default();
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cell.c = c;
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cell
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}
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fn wrap_cell(c: char) -> Cell {
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let mut cell = cell(c);
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cell.flags.insert(Flags::WRAPLINE);
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cell
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}
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