Initial public release of Warp.

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

app/src/integration_testing/window/assertion.rs

@@ -0,0 +1,26 @@
+use warpui::{
+    async_assert_eq,
+    integration::{AssertionCallback, AssertionOutcome, StepData},
+    windowing::WindowManager,
+    SingletonEntity,
+};
+
+/// Saves the active window id with the given step data key.
+pub fn save_active_window_id<K>(window_key: K) -> AssertionCallback
+where
+    K: Into<String>,
+{
+    let window_key = window_key.into();
+    Box::new(move |app, _| {
+        let window_id = app.read(|ctx| WindowManager::as_ref(ctx).active_window());
+        AssertionOutcome::SuccessWithData(StepData::new(
+            window_key.clone(),
+            window_id.expect("window id present"),
+        ))
+    })
+}
+
+/// Asserts the number of windows that are open.
+pub fn assert_num_windows_open(num_windows: usize) -> AssertionCallback {
+    Box::new(move |app, _| async_assert_eq!(app.window_ids().len(), num_windows))
+}