Initial public release of Warp.

Repo-Sync-Origin: warpdotdev/warp-internal@12af1d983b

app/src/server/experiments/model_tests.rs

@@ -0,0 +1,65 @@
+use super::{ServerExperiment, ServerExperiments};
+use crate::{GlobalResourceHandles, GlobalResourceHandlesProvider};
+use warpui::{App, Entity, SingletonEntity};
+
+/// A model for testing purposes only.
+///
+/// We use it to demonstrate how client-side
+/// models can be mutated to reflect server
+/// experiment state changes.
+pub struct TestModel(pub usize);
+
+impl Entity for TestModel {
+    type Event = ();
+}
+impl SingletonEntity for TestModel {}
+
+fn initialize_app(app: &mut App) {
+    app.update(crate::settings::init_and_register_user_preferences);
+
+    let global_resources = GlobalResourceHandles::mock(app);
+    app.add_singleton_model(|_| GlobalResourceHandlesProvider::new(global_resources));
+}
+
+#[test]
+fn test_new_from_cached() {
+    App::test((), |mut app| async move {
+        initialize_app(&mut app);
+
+        let model = app.add_singleton_model(|_| TestModel(0));
+        let cache = vec![ServerExperiment::TestExperiment];
+        app.add_singleton_model(|ctx| ServerExperiments::new_from_cache(cache, ctx));
+
+        // The experiment should have been enabled.
+        model.read(&app, |model, _| {
+            assert_eq!(model.0, 1);
+        });
+    });
+}
+
+#[test]
+fn test_apply_latest_state() {
+    App::test((), |mut app| async move {
+        initialize_app(&mut app);
+
+        let model = app.add_singleton_model(|_| TestModel(0));
+        let experiments =
+            app.add_singleton_model(|ctx| ServerExperiments::new_from_cache(vec![], ctx));
+
+        // Enable the experiment.
+        experiments.update(&mut app, |experiments, ctx| {
+            experiments.apply_latest_state(vec![ServerExperiment::TestExperiment], ctx);
+        });
+        model.read(&app, |model, _| {
+            assert_eq!(model.0, 1);
+        });
+
+        // Redundant experiment state should be a no-op.
+        experiments.update(&mut app, |experiments, ctx| {
+            experiments.apply_latest_state(vec![ServerExperiment::TestExperiment], ctx);
+        });
+        model.read(&app, |model, _| {
+            assert_eq!(model.0, 1);
+        });
+    });
+}