Panics · P06 Forms: roots, stale selections, shaping faults and gone units log instead of panicking; cron runs say UTC in an unknown zone

src/forms/tests/stale.rs

@@ -0,0 +1,47 @@
+use gpui::{AppContext, Context, IntoElement, Render, TestAppContext, Window};
+
+use super::setup;
+use crate::forms::{TextInput, UnitInput};
+
+#[gpui::test]
+fn a_selection_outside_the_text_or_inside_a_character_is_left(cx: &mut TestAppContext) {
+    setup(cx);
+    let (_, cx) = cx.add_window_view(|_, _| gpui::Empty);
+    let input = cx.update(|window, cx| cx.new(|cx| TextInput::new(window, cx)));
+    input.update(cx, |input, cx| {
+        input.set_text("héllo", cx);
+        input.select(0..1, cx);
+        input.select(0..2, cx);
+        input.select(3..99, cx);
+        assert_eq!(input.selection(), 0..1);
+    });
+}
+
+/// A unit field whose list may drop the chosen unit.
+struct Units {
+    shortened: bool,
+}
+
+impl Render for Units {
+    fn render(&mut self, _: &mut Window, _: &mut Context<Self>) -> impl IntoElement {
+        let units = if self.shortened {
+            vec!["em"]
+        } else {
+            vec!["px", "em"]
+        };
+        UnitInput::new("length", 12.0, units, "px")
+    }
+}
+
+#[gpui::test]
+fn a_unit_gone_from_its_list_keeps_the_field(cx: &mut TestAppContext) {
+    setup(cx);
+    let (host, cx) = cx.add_window_view(|_, _| Units { shortened: false });
+    cx.run_until_parked();
+    host.update(cx, |host, cx| {
+        host.shortened = true;
+        cx.notify();
+    });
+    cx.run_until_parked();
+    assert!(cx.debug_bounds("number-root").is_some());
+}