Add Servo engine host runtime

crates/ely_servo_host/tests/software_host.rs

@@ -0,0 +1,54 @@
+#![cfg(feature = "servo-engine")]
+
+use std::{error::Error, thread, time::Duration};
+
+use ely_domain::{ProfileId, TabId, UrlText};
+use ely_servo_host::{
+    NavigationRequest, ServoHost, ServoHostError, ServoSurfaceSize, SoftwareServoHost, WebViewState,
+};
+
+#[test]
+fn manages_real_servo_webview_lifecycle() -> Result<(), Box<dyn Error>> {
+    let mut host = SoftwareServoHost::new(ServoSurfaceSize::new(320, 240))?;
+    let tab_id = TabId::new();
+    let profile_id = ProfileId::new();
+
+    let webview_id = host.create_webview(tab_id.clone(), profile_id.clone())?;
+    let snapshot = host.snapshot(&webview_id)?;
+
+    assert_eq!(snapshot.webview_id(), &webview_id);
+    assert_eq!(snapshot.tab_id(), &tab_id);
+    assert_eq!(snapshot.profile_id(), &profile_id);
+    assert_eq!(snapshot.state(), &WebViewState::Created);
+
+    let url = UrlText::parse(
+        "data:text/html,%3Ctitle%3EELY%20Host%3C%2Ftitle%3E%3Cmain%3EReady%3C%2Fmain%3E",
+    )?;
+
+    host.navigate(NavigationRequest { webview_id: webview_id.clone(), tab_id, url })?;
+
+    for _ in 0..1_000 {
+        host.tick();
+        if host.state(&webview_id)? == WebViewState::Complete {
+            break;
+        }
+        thread::sleep(Duration::from_millis(1));
+    }
+
+    let snapshot = host.snapshot(&webview_id)?;
+    assert_eq!(snapshot.state(), &WebViewState::Complete, "snapshot: {snapshot:?}");
+    assert!(
+        snapshot.url().is_some_and(|value| value.starts_with("data:text/html,")),
+        "snapshot: {snapshot:?}"
+    );
+
+    host.paint(&webview_id)?;
+    let snapshot = host.snapshot(&webview_id)?;
+    assert!(!snapshot.has_pending_frame());
+
+    assert!(matches!(
+        SoftwareServoHost::new(ServoSurfaceSize::new(320, 240)),
+        Err(ServoHostError::RuntimeAlreadyStarted)
+    ));
+    Ok(())
+}