rust/src/test/rustdoc-gui/sidebar-mobile-scroll.goml

// This test ensures that the mobile sidebar preserves scroll position.
goto: file://|DOC_PATH|/test_docs/struct.Foo.html
// Switching to "mobile view" by reducing the width to 600px.
size: (600, 600)
assert-css: (".sidebar", {"display": "block", "left": "-1000px"})

// Scroll down.
scroll-to: "//h2[@id='blanket-implementations']"
assert-window-property: {"pageYOffset": "651"}

// Open the sidebar menu.
click: ".sidebar-menu-toggle"
wait-for-css: (".sidebar", {"left": "0px"})

// We are no longer "scrolled". It's important that the user can't
// scroll the body at all, but these test scripts are run only in Chrome,
// and we need to use a more complicated solution to this problem because
// of Mobile Safari...
assert-window-property: {"pageYOffset": "0"}

// Close the sidebar menu. Make sure the scroll position gets restored.
click: ".sidebar-menu-toggle"
wait-for-css: (".sidebar", {"left": "-1000px"})
assert-window-property: {"pageYOffset": "651"}

// Now test that scrollability returns when the browser window is just resized.
click: ".sidebar-menu-toggle"
wait-for-css: (".sidebar", {"left": "0px"})
assert-window-property: {"pageYOffset": "0"}
size: (900, 600)
assert-window-property: {"pageYOffset": "651"}