1 files changed, 23 insertions, 5 deletions

diff --git a/test/panes.zig b/test/panes.zig
index ca53af3d..42dd6b77 100644
--- a/test/panes.zig
+++ b/test/panes.zig
@@ -4891,7 +4891,7 @@ test {
     _ = LookResetTests;
 }
 
-test "a terminal's pty follows its pane down to its last row" {
+test "a terminal keeps its tag and two body rows through a squeeze, a drag and a smaller window; a text pane does not" {
     const p = try Pardes.init(std.testing.allocator, .{ .tty_only = true, .cols = 100, .rows = 30 });
     defer p.deinit();
     p.presentation.enabled = false;
@@ -4903,16 +4903,34 @@ test "a terminal's pty follows its pane down to its last row" {
     p.newScratchBelow(term);
     p.sync();
     while (p.nextEffect()) |_| {}
-    // The terminal squeezed to its tag alone, folded by nobody.
+    const col = layout.findPane(p, term).?.col;
+    const floor = p.panes[term].?.tag_rows + layout.min_body_rows;
+    // Squeezed by the weights: the others give it its floor.
     p.panes[term].?.vweight = 0.01;
-    for (p.col_panes[0][0..p.col_n[0]]) |k| if (k != term) {
+    for (p.col_panes[col][0..p.col_n[col]]) |k| if (k != term) {
         p.panes[k].?.vweight = 1000;
     };
     p.sync();
-    try std.testing.expect(p.rects[term].h <= p.panes[term].?.tag_rows);
+    try std.testing.expectEqual(floor, p.rects[term].h);
     var rows: ?u16 = null;
     while (p.nextEffect()) |effect| if (effect == .resize_pty and effect.resize_pty.pane == term) {
         rows = effect.resize_pty.rows;
     };
-    try std.testing.expectEqual(@as(?u16, 1), rows);
+    try std.testing.expectEqual(@as(?u16, layout.min_body_rows), rows);
+    // A drag of the grip under it up to its tag stops at the floor; one
+    // the other way takes a text pane down to its tag alone.
+    const k = layout.findPane(p, term).?.idx;
+    if (k + 1 < p.col_n[col]) {
+        layout.applyRowSplit(p, col, k, p.rects[term].y);
+        p.sync();
+        try std.testing.expectEqual(floor, p.rects[term].h);
+        const text = p.col_panes[col][k + 1];
+        layout.applyRowSplit(p, col, k, p.screen_h);
+        p.sync();
+        try std.testing.expect(p.rects[text].h <= p.panes[text].?.tag_rows);
+    }
+    // A window too short for all: the terminal keeps its floor still.
+    p.update(.{ .resize = .{ .cols = 100, .rows = 10 } });
+    p.sync();
+    try std.testing.expect(p.rects[term].h >= p.panes[term].?.tag_rows + layout.min_body_rows);
 }