Make test more precise

Author: Shinigami92

tests/interpolations/interpolations.test.ts

@@ -4,16 +4,27 @@ import { format } from 'prettier';
 import { plugin } from './../../src/index';
 
 describe('Interpolations', () => {
+	const backupProcessEnv: Record<string, string | undefined> = process.env;
+
+	afterEach(() => {
+		process.env = { ...backupProcessEnv };
+	});
+
 	test('should handle Neutral interpolations', () => {
 		const expected: string = readFileSync(resolve(__dirname, 'formatted_none.pug'), 'utf8');
 		const code: string = readFileSync(resolve(__dirname, 'unformatted_none.pug'), 'utf8');
 		const actual: string = format(code, { parser: 'pug', plugins: [plugin] });
 
 		expect(actual).toBe(expected);
 	});
+
 	test('should handle Angular interpolations', () => {
 		const expected: string = readFileSync(resolve(__dirname, 'formatted_angular.pug'), 'utf8');
 		const code: string = readFileSync(resolve(__dirname, 'unformatted_angular.pug'), 'utf8');
+
+		// process.env should be ignored
+		process.env.npm_package_dependencies_vue = 'some version';
+
 		const actual: string = format(code, {
 			parser: 'pug',
 			plugins: [plugin],
@@ -23,9 +34,14 @@ describe('Interpolations', () => {
 
 		expect(actual).toBe(expected);
 	});
+
 	test('should handle Vue interpolations', () => {
 		const expected: string = readFileSync(resolve(__dirname, 'formatted_vue.pug'), 'utf8');
 		const code: string = readFileSync(resolve(__dirname, 'unformatted_vue.pug'), 'utf8');
+
+		// process.env should be ignored
+		process.env.npm_package_devDependencies_svelte = 'some version';
+
 		const actual: string = format(code, {
 			parser: 'pug',
 			plugins: [plugin],