test that I've not broken whitespace handling

test/parser.ts

@@ -815,6 +815,17 @@ hoge`;
 			assert.deepStrictEqual(mfm.parse(input), output);
 		});
 
+		test('newlines and whitespace', () => {
+			const input = 'before #abc\nafter #def\u3000foo #ghi\tbar #jkl';
+			const output = [
+				TEXT('before '), HASHTAG('abc'),
+				TEXT('\nafter '), HASHTAG('def'),
+				TEXT('\u3000foo '), HASHTAG('ghi'),
+				TEXT('\tbar '), HASHTAG('jkl'),
+			];
+			assert.deepStrictEqual(mfm.parse(input), output);
+		});
+
 		test('with keycap number sign', () => {
 			const input = '#️⃣abc123 #abc';
 			const output = [UNI_EMOJI('#️⃣'), TEXT('abc123 '), HASHTAG('abc')];