"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": {
        "images": {
          "headerURL": "image1.png",
        },
        "colors": {
          "accentcolor": ACCENT_COLOR,
          "textcolor": TEXT_COLOR,
          "tab_selected": TAB_BACKGROUND_COLOR,
        },
      },
    },
    files: {
      "image1.png": BACKGROUND,
    },
  });

  await extension.startup();

  info("Checking selected tab color");

  let openTab = document.querySelector(".tabbrowser-tab[visuallyselected=true]");
  let openTabBackground = document.getAnonymousElementByAttribute(openTab, "class", "tab-background");

  let selectedTab = await BrowserTestUtils.openNewForegroundTab(gBrowser, "about:blank");
  let selectedTabBackground = document.getAnonymousElementByAttribute(selectedTab, "class", "tab-background");

  let openTabGradient = window.getComputedStyle(openTabBackground).getPropertyValue("background-image");
  let selectedTabGradient = window.getComputedStyle(selectedTabBackground).getPropertyValue("background-image");

  let rgbRegex = /rgb\((\d{1,3}), (\d{1,3}), (\d{1,3})\)/g;
  let selectedTabColors = selectedTabGradient.match(rgbRegex);

  Assert.equal(selectedTabColors[0], "rgb(" + hexToRGB(TAB_BACKGROUND_COLOR).join(", ") + ")",
               "Selected tab background color should be set.");
  Assert.equal(openTabGradient, "none");

  gBrowser.removeTab(selectedTab);
  await extension.unload();
});
