Ely Office: six offline-first desktop apps in Rust and GPUI

ElyDoc, ElyTable, ElyShow (LibreOfficeKit), ElyPDF (MuPDF), ElyTree (Git),
ElyMark (Milkdown and CodeMirror in CEF). ElyMail and ElyAgent follow.

crates/ely-ui/src/settings/tests.rs

@@ -0,0 +1,50 @@
+use ely_gpui_component::theme::{ActiveTheme as _, Mode};
+use ely_platform::{
+    AppId,
+    settings::{Appearance, Shared},
+};
+use gpui::TestAppContext;
+
+use super::{changed, window::SettingsView};
+
+fn installed(cx: &mut TestAppContext) {
+    cx.update(|cx| {
+        ely_gpui_component::init_for_tests(cx);
+        super::install_defaults(cx);
+        crate::theme::install(cx);
+        crate::i18n::install(cx);
+    });
+}
+
+#[gpui::test]
+fn a_change_on_disk_turns_the_theme_at_once(cx: &mut TestAppContext) {
+    installed(cx);
+    let dark = Shared { appearance: Appearance::Dark, ..Shared::default() };
+    cx.update(|cx| changed((dark, None), cx));
+    cx.run_until_parked();
+    cx.update(|cx| {
+        assert_eq!(cx.global::<crate::theme::ThemeSettings>().appearance, Appearance::Dark);
+        assert_eq!(cx.theme().mode(), Mode::Dark);
+    });
+    let light = Shared { appearance: Appearance::Light, ..Shared::default() };
+    cx.update(|cx| changed((light, None), cx));
+    cx.run_until_parked();
+    cx.update(|cx| assert_eq!(cx.theme().mode(), Mode::Light));
+}
+
+#[gpui::test]
+fn each_app_shows_its_own_sections(cx: &mut TestAppContext) {
+    installed(cx);
+    for (app, keys) in [
+        (AppId::Doc, &["general", "documents", "storage", "diagnostics"][..]),
+        (AppId::Pdf, &["general", "documents", "storage", "diagnostics"]),
+        (AppId::Tree, &["general", "git", "storage", "diagnostics"]),
+        (AppId::Mark, &["general", "storage", "diagnostics"]),
+    ] {
+        let window = cx.add_window(|window, cx| SettingsView::new(app, window, cx));
+        let shown = window
+            .update(cx, |view, _, cx| view.sections(cx).into_iter().map(|(key, ..)| key).collect::<Vec<_>>())
+            .unwrap();
+        assert_eq!(shown, keys, "{app:?}");
+    }
+}