mozilla-central/devtools/client/responsive/test/browser/browser_viewport_resizing_minimum_scale.js (file symbol)

Source code

Revision control

Copy as Markdown

Other Tools

Test Info: Warnings

/* Any copyright is dedicated to the Public Domain.
"use strict";
// Test viewport resizing, with and without meta viewport support.
const TEST_URL =
"data:text/html;charset=utf-8," +
'<head><meta name="viewport" content="initial-scale=1.0, ' +
'minimum-scale=1.0, width=device-width"></head>' +
'<div style="width:100%;background-color:green">test</div>' +
"</body>";
addRDMTask(TEST_URL, async function ({ ui, manager }) {
info("--- Starting viewport test output ---");
// We're going to take a 300,600 viewport (before) and resize it
// to 600,300 (after) and then resize it back. At the before and
// after points, we'll measure zoom and the layout viewport width
// and height.
const expected = [
{
before: {
zoom: 1.0,
width: 300,
height: 600,
},
after: {
zoom: 1.0,
width: 600,
height: 300,
},
},
];
for (const e of expected) {
const b = e.before;
const a = e.after;
const message = "Meta Viewport ON";
// Ensure meta viewport is set.
info(message + " setting meta viewport support.");
await setTouchAndMetaViewportSupport(ui, true);
// Get to the initial size and check values.
await setViewportSizeAndAwaitReflow(ui, manager, 300, 600);
await testViewportZoomWidthAndHeight(
message + " before resize",
ui,
b.zoom,
b.width,
b.height
);
// Move to the smaller size.
await setViewportSizeAndAwaitReflow(ui, manager, 600, 300);
await testViewportZoomWidthAndHeight(
message + " after resize",
ui,
a.zoom,
a.width,
a.height
);
// Go back to the initial size and check again.
await setViewportSizeAndAwaitReflow(ui, manager, 300, 600);
await testViewportZoomWidthAndHeight(
message + " return to initial size",
ui,
b.zoom,
b.width,
b.height
);
}
});