1 files changed, 103 insertions, 0 deletions
diff --git a/gfx/layers/apz/test/mochitest/browser_test_tab_drag_zoom.js b/gfx/layers/apz/test/mochitest/browser_test_tab_drag_zoom.js
new file mode 100644
index 0000000000..e421e7bd3c
--- /dev/null
+++ b/gfx/layers/apz/test/mochitest/browser_test_tab_drag_zoom.js
@@ -0,0 +1,103 @@
+/* This test is a a mash up of
+     https://searchfox.org/mozilla-central/rev/016925857e2f81a9425de9e03021dcf4251cafcc/gfx/layers/apz/test/mochitest/browser_test_select_zoom.js
+     https://searchfox.org/mozilla-central/rev/016925857e2f81a9425de9e03021dcf4251cafcc/browser/base/content/test/general/browser_tab_drag_drop_perwindow.js
+*/
+
+const EVENTUTILS_URL =
+  "chrome://mochikit/content/tests/SimpleTest/EventUtils.js";
+var EventUtils = {};
+
+Services.scriptloader.loadSubScript(EVENTUTILS_URL, EventUtils);
+
+add_task(async function test_dragging_zoom_handling() {
+  function httpURL(filename) {
+    let chromeURL = getRootDirectory(gTestPath) + filename;
+    //return chromeURL;
+    return chromeURL.replace(
+      "chrome://mochitests/content/",
+      "http://mochi.test:8888/"
+    );
+  }
+
+  const pageUrl = httpURL("helper_test_tab_drag_zoom.html");
+
+  let win1 = await BrowserTestUtils.openNewBrowserWindow();
+  let win2 = await BrowserTestUtils.openNewBrowserWindow();
+
+  let tab1 = await BrowserTestUtils.openNewForegroundTab(win1.gBrowser);
+  let tab2 = await BrowserTestUtils.openNewForegroundTab(
+    win2.gBrowser,
+    pageUrl
+  );
+
+  await SpecialPowers.spawn(tab2.linkedBrowser, [], async () => {
+    await content.wrappedJSObject.waitUntilApzStable();
+  });
+
+  const initial_resolution = await SpecialPowers.spawn(
+    tab2.linkedBrowser,
+    [],
+    () => {
+      return content.window.windowUtils.getResolution();
+    }
+  );
+
+  ok(
+    initial_resolution > 0,
+    "The initial_resolution is " +
+      initial_resolution +
+      ", which is some sane value"
+  );
+
+  let effect = EventUtils.synthesizeDrop(
+    tab2,
+    tab1,
+    [[{ type: TAB_DROP_TYPE, data: tab2 }]],
+    null,
+    win2,
+    win1
+  );
+  is(effect, "move", "Tab should be moved from win2 to win1.");
+
+  await SpecialPowers.spawn(win1.gBrowser.selectedBrowser, [], async () => {
+    await content.wrappedJSObject.waitUntilApzStable();
+  });
+
+  let resolution = await SpecialPowers.spawn(
+    win1.gBrowser.selectedBrowser,
+    [],
+    () => {
+      return content.window.windowUtils.getResolution();
+    }
+  );
+
+  ok(
+    resolution == initial_resolution,
+    "The resolution (" + resolution + ") is the same after tab dragging"
+  );
+
+  await SpecialPowers.spawn(win1.gBrowser.selectedBrowser, [], async () => {
+    await content.wrappedJSObject.pinchZoomInWithTouch(150, 300);
+  });
+
+  // Flush state and get the resolution we're at now
+  await SpecialPowers.spawn(win1.gBrowser.selectedBrowser, [], async () => {
+    await content.wrappedJSObject.promiseApzFlushedRepaints();
+  });
+
+  resolution = await SpecialPowers.spawn(
+    win1.gBrowser.selectedBrowser,
+    [],
+    () => {
+      return content.window.windowUtils.getResolution();
+    }
+  );
+
+  ok(
+    resolution > initial_resolution,
+    "The resolution (" + resolution + ") is greater after zooming in"
+  );
+
+  await BrowserTestUtils.closeWindow(win1);
+  await BrowserTestUtils.closeWindow(win2);
+});