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use pretty_assertions::assert_eq;
use super::{render_code_body, ToolBodyWindow};
// Covers: a tail window clips the wrong end of a wrapped source row, including
// UTF-8, or consumes more than the existing terminal-row budget.
// Owner: pure code-body wrap/window math; PTY owns model-generation visibility.
#[test]
fn code_window_uses_terminal_rows_and_preserves_full_height() {
for (source, window, budget, expected) in [
("abcdef", ToolBodyWindow::Head, 1, vec![" abcd"]),
("abcdef", ToolBodyWindow::Tail, 1, vec![" ef "]),
("αβγδεζ", ToolBodyWindow::Tail, 1, vec![" εζ "]),
(
"abcdef",
ToolBodyWindow::Tail,
usize::MAX,
vec![" abcd", " ef "],
),
] {
let mut remaining = budget;
let rendered = render_code_body(
&[source.into()],
"python",
window,
/*width*/ 8,
&mut remaining,
);
let rows: Vec<String> = rendered
.groups
.into_iter()
.flat_map(super::super::ChildGroup::into_lines)
.map(|line| {
line.spans
.iter()
.map(|span| span.content.as_ref())
.collect()
})
.collect();
assert_eq!(
(rows, rendered.total_rows),
(
expected
.iter()
.map(|row| row.to_string())
.collect::<Vec<_>>(),
2
),
"{window:?}: {source}"
);
}
}