Method assignTestGlobals

tests/browser/environment.js:259–304

(global, testServer, corsServer, page)

    }

    assignTestGlobals(global, testServer, corsServer, page) {
        global.getColorScheme = async () => {
            if (global.product === 'firefox') {
                return await global.backgroundUtils.getColorScheme();
            }
            const isDark = await page.evaluate(() => matchMedia('(prefers-color-scheme: dark)').matches);
            return isDark ? 'dark' : 'light';
        };

        global.pageUtils.evaluateScript = async (script) => await page.evaluate(script);

        global.expectPageStyles = async (expect, expectations) => {
            if (!Array.isArray(expectations[0])) {
                expectations = [expectations];
            }
            const errors = await page.evaluate(this.checkPageStylesInBrowserContext, expectations);
            expect(errors.join('\n')).toBe('');
        };

        global.emulateColorScheme = async (colorScheme) => {
            if (global.product === 'firefox') {
                await global.pageUtils.emulateColorScheme(colorScheme);
                await global.backgroundUtils.emulateColorScheme(colorScheme);
                const newPageColorScheme = await global.backgroundUtils.getColorScheme();
                const newBGColorScheme = await global.pageUtils.getColorScheme();
                if (newPageColorScheme !== colorScheme || newBGColorScheme !== colorScheme) {
                    throw new Error('Failed to apply new color scheme');
                }
                return;
            }
            await page.emulateMediaFeatures([{name: 'prefers-color-scheme', value: colorScheme}]);
            if (global.product === 'edge') {
                const page = await this.getChromiumMV2BackgroundPage();
                await page.emulateMediaFeatures([{name: 'prefers-color-scheme', value: colorScheme}]);
            }
        };

        global.loadTestPage = async (paths, gotoOptions) => {
            const {cors, ...testPaths} = paths;
            testServer.setPaths(testPaths);
            cors && corsServer.setPaths(cors);
            await this.openTestPage(`http://localhost:${TEST_SERVER_PORT}`, gotoOptions);
        };

        global.corsURL = corsServer.url;
    }

    /**
     * Creates a server and returns once extension connects to it