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Test Info:
"use strict";
// This test checks whether applied WebExtension themes that attempt to change
// the background color of selected tab are applied correctly.
add_task(async function test_tab_background_color_property() {
const TAB_BACKGROUND_COLOR = "#9400ff";
let extension = ExtensionTestUtils.loadExtension({
manifest: {
theme: {
colors: {
frame: ACCENT_COLOR,
tab_background_text: TEXT_COLOR,
tab_selected: TAB_BACKGROUND_COLOR,
},
},
},
});
await extension.startup();
info("Checking selected tab color");
let openTab = document.querySelector(".tabbrowser-tab[visuallyselected]");
let openTabBackground = openTab.querySelector(".tab-background");
let selectedTab = await BrowserTestUtils.openNewForegroundTab(
gBrowser,
"about:blank"
);
let selectedTabBackground = selectedTab.querySelector(".tab-background");
let openTabColor = window
.getComputedStyle(openTabBackground)
.getPropertyValue("background-color");
let selectedTabColor = window
.getComputedStyle(selectedTabBackground)
.getPropertyValue("background-color");
Assert.equal(
selectedTabColor,
"rgb(" + hexToRGB(TAB_BACKGROUND_COLOR).join(", ") + ")",
"Selected tab background color should be set."
);
Assert.notEqual(openTabColor, selectedTabColor);
gBrowser.removeTab(selectedTab);
await extension.unload();
});