1 files changed, 90 insertions, 0 deletions
diff --git a/browser/base/content/test/popups/browser_popup_new_window_size.js b/browser/base/content/test/popups/browser_popup_new_window_size.js
new file mode 100644
index 0000000000..5f5d57e31e
--- /dev/null
+++ b/browser/base/content/test/popups/browser_popup_new_window_size.js
@@ -0,0 +1,90 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+const baseURL = getRootDirectory(gTestPath).replace(
+  "chrome://mochitests/content",
+  "https://example.com"
+);
+
+add_task(async function test_new_window_size() {
+  let tab = await BrowserTestUtils.openNewForegroundTab(
+    window.gBrowser,
+    baseURL
+  );
+
+  await SpecialPowers.spawn(tab.linkedBrowser, [], async () => {
+    info("Opening popup.");
+    let requestedWidth = 200;
+    let requestedHeight = 200;
+    let win = this.content.open(
+      "popup_size.html",
+      "",
+      `width=${requestedWidth},height=${requestedHeight}`
+    );
+
+    let loadPromise = ContentTaskUtils.waitForEvent(win, "load");
+
+    let { innerWidth: preLoadWidth, innerHeight: preLoadHeight } = win;
+    is(preLoadWidth, requestedWidth, "Width before load event.");
+    is(preLoadHeight, requestedHeight, "Height before load event.");
+
+    await loadPromise;
+
+    let { innerWidth: postLoadWidth, innerHeight: postLoadHeight } = win;
+    is(postLoadWidth, requestedWidth, "Width after load event.");
+    is(postLoadHeight, requestedHeight, "Height after load event.");
+
+    await ContentTaskUtils.waitForCondition(
+      () =>
+        win.innerWidth == requestedWidth && win.innerHeight == requestedHeight,
+      "Waiting for window to become request size."
+    );
+
+    let { innerWidth: finalWidth, innerHeight: finalHeight } = win;
+    is(finalWidth, requestedWidth, "Final width.");
+    is(finalHeight, requestedHeight, "Final height.");
+
+    await SpecialPowers.spawn(
+      win,
+      [{ requestedWidth, requestedHeight }],
+      async input => {
+        let { initialSize, loadSize } = this.content.wrappedJSObject;
+        is(
+          initialSize.width,
+          input.requestedWidth,
+          "Content width before load event."
+        );
+        is(
+          initialSize.height,
+          input.requestedHeight,
+          "Content height before load event."
+        );
+        is(
+          loadSize.width,
+          input.requestedWidth,
+          "Content width after load event."
+        );
+        is(
+          loadSize.height,
+          input.requestedHeight,
+          "Content height after load event."
+        );
+        is(
+          this.content.innerWidth,
+          input.requestedWidth,
+          "Content final width."
+        );
+        is(
+          this.content.innerHeight,
+          input.requestedHeight,
+          "Content final height."
+        );
+      }
+    );
+
+    info("Closing popup.");
+    win.close();
+  });
+
+  await BrowserTestUtils.removeTab(tab);
+});