fune/browser/components/extensions/test/browser/browser_ext_themes_validation.js

"use strict";

/**
 * Helper function for testing a theme with invalid properties.
 * @param {object} invalidProps The invalid properties to load the theme with.
 */
async function testThemeWithInvalidProperties(invalidProps) {
  let manifest = {
    "theme": {},
  };

  invalidProps.forEach(prop => {
    // Some properties require additional information:
    switch (prop) {
      case "background":
        manifest[prop] = {"scripts": ["background.js"]};
        break;
      case "permissions":
        manifest[prop] = ["tabs"];
        break;
      case "omnibox":
        manifest[prop] = {"keyword": "test"};
        break;
      default:
        manifest[prop] = {};
    }
  });

  let extension = ExtensionTestUtils.loadExtension({manifest});
  await Assert.rejects(extension.startup(),
                       /startup failed/,
                       "Theme should fail to load if it contains invalid properties");
}

add_task(async function test_that_theme_with_invalid_properties_fails_to_load() {
  let invalidProps = ["page_action", "browser_action", "background", "permissions", "omnibox", "commands"];
  for (let prop in invalidProps) {
    await testThemeWithInvalidProperties([prop]);
  }
  await testThemeWithInvalidProperties(invalidProps);
});