1 files changed, 49 insertions, 0 deletions
diff --git a/components/servo/tests/webview.rs b/components/servo/tests/webview.rs
new file mode 100644
index 00000000000..4ed06e412da
--- /dev/null
+++ b/components/servo/tests/webview.rs
@@ -0,0 +1,49 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+
+//! WebView API unit tests.
+//!
+//! Since all Servo tests must run serially on the same thread, it is important
+//! that tests never panic. In order to ensure this, use `anyhow::ensure!` instead
+//! of `assert!` for test assertions. `ensure!` will produce a `Result::Err` in
+//! place of panicking.
+
+mod common;
+
+use std::cell::Cell;
+use std::rc::Rc;
+
+use anyhow::ensure;
+use common::{ServoTest, run_api_tests};
+use servo::{WebViewBuilder, WebViewDelegate};
+
+#[derive(Default)]
+struct WebViewDelegateImpl {
+    url_changed: Cell<bool>,
+}
+
+impl WebViewDelegate for WebViewDelegateImpl {
+    fn notify_url_changed(&self, _webview: servo::WebView, _url: url::Url) {
+        self.url_changed.set(true);
+    }
+}
+
+fn test_create_webview(servo_test: &ServoTest) -> Result<(), anyhow::Error> {
+    let delegate = Rc::new(WebViewDelegateImpl::default());
+    let webview = WebViewBuilder::new(servo_test.servo())
+        .delegate(delegate.clone())
+        .build();
+
+    servo_test.spin(move || Ok(!delegate.url_changed.get()))?;
+
+    let url = webview.url();
+    ensure!(url.is_some());
+    ensure!(url.unwrap().to_string() == "about:blank");
+
+    Ok(())
+}
+
+fn main() {
+    run_api_tests!(test_create_webview);
+}