import compiler from './compiler';

/**
 * This uses Webpack's compiler function (see compiler.js) to
 * generate an in-memory test of the loader.
 *
 * We load a dummy css and check for its creation and integrity of its
 * content.
 */

describe('The Loader', () => {

	let output;
	let outputMin;

	beforeAll(async () => {
		output = await compiler('test.css');
		outputMin = await compiler('test.css', { minify: true });

		// strange string comparison due to template literals inside template literals
		// output =
		// outputMin = '\`' + statsMin.toJson({ source: true }).modules[0].modules[0].source.trim().replace(/\`/g, '\\`') + '\`';
	});

	it('Creates the file', async () => {
		expect(output).not.toBeNull();
	});

	it('Creates the min file', async () => {
		expect(outputMin).not.toBeNull();
	});

	it('Has the CSS contents', async () => {
		const parsedFileContents = `background-color: #000000;`;

		const hasCss = output.includes(parsedFileContents);
		expect(hasCss).toBe(true);
	});

	it('Has the min CSS contents', async () => {
		const parsedMinFileContents = `background-color:#000`;

		const hasCssMin = outputMin.includes(parsedMinFileContents);
		expect(hasCssMin).toBe(true);
	});
});