Add a failing test case for dirty test directories (WordPress#70)

See WordPress/playground-tools#32
See
WordPress#503 (comment)

## What?

Adds a failing test case for
WordPress/playground-tools#32 and marks it as
a skipped test.

## Why?

It will make it easier to evaluate whether
WordPress#503 fixes the
issue.

## Testing Instructions

1. Change `test.skip` to `test.only`.
2. Run `nx test wp-now --watch`.
3. Verify the test fails on the second assertion.
4. Comment out the second assertion and hit save.
5. Verify the test fails on the third assertion.
6. Comment out the third assertion and hit save.
7. Verify the test fails on the fourth assertion.

packages/wp-now/src/tests/wp-now.spec.ts

@@ -514,6 +514,43 @@ describe('Test starting different modes', () => {
 		expect(themeName.text).toContain('Twenty Twenty-Three');
 	});
 
+	/**
+	 * Test that startWPNow doesn't leave dirty files.
+	 *
+	 * @see https://github.com/WordPress/playground-tools/issues/32
+	 */
+	test.skip('startWPNow does not leave dirty folders and files', async () => {
+		const projectPath = path.join(tmpExampleDirectory, 'wordpress');
+		const options = await getWpNowConfig({ path: projectPath });
+		await startWPNow(options);
+		expect(
+			fs.existsSync(
+				path.join(
+					projectPath,
+					'wp-content',
+					'mu-plugins',
+					'0-allow-wp-org.php'
+				)
+			)
+		).toBe(false);
+		expect(
+			fs.existsSync(path.join(projectPath, 'wp-content', 'database'))
+		).toBe(false);
+		expect(
+			fs.existsSync(
+				path.join(
+					projectPath,
+					'wp-content',
+					'plugins',
+					'sqlite-database-integration'
+				)
+			)
+		).toBe(false);
+		expect(
+			fs.existsSync(path.join(projectPath, 'wp-content', 'db.php'))
+		).toBe(false);
+	});
+
 	/**
 	 * Test PHP integration test executing runCli.
 	 */