class UtilsTests extends BaseTest {
	test_stripIndent() {
		this.assertEqual('', MDUtils.stripIndent(''));
		this.assertEqual('', MDUtils.stripIndent('  '));
		this.assertEqual('foo', MDUtils.stripIndent('foo'));
		this.assertEqual('foo', MDUtils.stripIndent(' foo'));
		this.assertEqual('foo', MDUtils.stripIndent('  foo'));
		this.assertEqual('foo', MDUtils.stripIndent('   foo'));
		this.assertEqual('foo', MDUtils.stripIndent('    foo'));
		this.assertEqual(' foo', MDUtils.stripIndent('     foo'));
		this.assertEqual('foo', MDUtils.stripIndent('\tfoo'));
		this.assertEqual("\tfoo", MDUtils.stripIndent('\t\tfoo'));
		this.assertEqual('foo', MDUtils.stripIndent('\t\tfoo', 2));
		this.assertEqual('foo', MDUtils.stripIndent('      foo', 2));
	}

	test_countIndents() {
		this.assertEqual(0, MDUtils.countIndents(''));
		this.assertEqual(1, MDUtils.countIndents('  '));
		this.assertEqual(1, MDUtils.countIndents('    '));
		this.assertEqual(0, MDUtils.countIndents('foo'));
		this.assertEqual(0, MDUtils.countIndents('foo'));
		this.assertEqual(1, MDUtils.countIndents(' foo'));
		this.assertEqual(1, MDUtils.countIndents('  foo'));
		this.assertEqual(1, MDUtils.countIndents('   foo'));
		this.assertEqual(1, MDUtils.countIndents('    foo'));
		this.assertEqual(2, MDUtils.countIndents('     foo'));
		this.assertEqual(1, MDUtils.countIndents('\tfoo'));
		this.assertEqual(2, MDUtils.countIndents('\t\tfoo'));

		this.assertEqual(0, MDUtils.countIndents('', true));
		this.assertEqual(0, MDUtils.countIndents('  ', true));
		this.assertEqual(1, MDUtils.countIndents('    ', true));
		this.assertEqual(0, MDUtils.countIndents('foo', true));
		this.assertEqual(0, MDUtils.countIndents(' foo', true));
		this.assertEqual(0, MDUtils.countIndents('  foo', true));
		this.assertEqual(0, MDUtils.countIndents('   foo', true));
		this.assertEqual(1, MDUtils.countIndents('    foo', true));
		this.assertEqual(1, MDUtils.countIndents('     foo', true));
		this.assertEqual(1, MDUtils.countIndents('\tfoo', true));
		this.assertEqual(2, MDUtils.countIndents('\t\tfoo', true));
	}

	test_tokenizeLabel() {
		// Escapes are preserved
		this.assertEqual([ '[foo]', 'foo' ], MDToken.tokenizeLabel('[foo] bar'));
		this.assertEqual([ '[foo\\[]', 'foo\\[' ], MDToken.tokenizeLabel('[foo\\[] bar'));
		this.assertEqual([ '[foo\\]]', 'foo\\]' ], MDToken.tokenizeLabel('[foo\\]] bar'));
		this.assertEqual([ '[foo[]]', 'foo[]' ], MDToken.tokenizeLabel('[foo[]] bar'));
		this.assertEqual([ '[foo\\(]', 'foo\\(' ], MDToken.tokenizeLabel('[foo\\(] bar'));
		this.assertEqual([ '[foo\\)]', 'foo\\)' ], MDToken.tokenizeLabel('[foo\\)] bar'));
		this.assertEqual([ '[foo()]', 'foo()' ], MDToken.tokenizeLabel('[foo()] bar'));

		this.assertEqual(null, MDToken.tokenizeLabel('foo bar'));
		this.assertEqual(null, MDToken.tokenizeLabel('[foo\\] bar'));
		this.assertEqual(null, MDToken.tokenizeLabel('[foo bar'));
		this.assertEqual(null, MDToken.tokenizeLabel('[foo[] bar'));
	}

	test_tokenizeURL() {
		this.assertEqual([ '(page.html)', 'page.html', null ], MDToken.tokenizeURL('(page.html) foo'));
		this.assertEqual([ '(page.html "link title")', 'page.html', 'link title' ], MDToken.tokenizeURL('(page.html "link title") foo'));
		this.assertEqual([ '(https://example.com/path/page.html?query=foo&bar=baz#fragment)', 'https://example.com/path/page.html?query=foo&bar=baz#fragment', null ], MDToken.tokenizeURL('(https://example.com/path/page.html?query=foo&bar=baz#fragment) foo'));

		this.assertEqual(null, MDToken.tokenizeURL('page.html foo'));
		this.assertEqual(null, MDToken.tokenizeURL('(page.html foo'));
		this.assertEqual(null, MDToken.tokenizeURL('page.html) foo'));
		this.assertEqual(null, MDToken.tokenizeURL('(page.html "title) foo'));
		this.assertEqual(null, MDToken.tokenizeURL('(page .html) foo'));
		this.assertEqual(null, MDToken.tokenizeURL('(user@example.com) foo'));
		this.assertEqual(null, MDToken.tokenizeURL('(user@example.com "title") foo'));
	}

	test_tokenizeEmail() {
		this.assertEqual([ '(user@example.com)', 'user@example.com', null ], MDToken.tokenizeEmail('(user@example.com)'));
		this.assertEqual([ '(user@example.com "link title")', 'user@example.com', 'link title' ], MDToken.tokenizeEmail('(user@example.com "link title")'));

		this.assertEqual(null, MDToken.tokenizeEmail('(https://example.com) foo'));
		this.assertEqual(null, MDToken.tokenizeEmail('(https://example.com "link title") foo'));
		this.assertEqual(null, MDToken.tokenizeEmail('(user@example.com "link title) foo'));
		this.assertEqual(null, MDToken.tokenizeEmail('(user@example.com foo'));
		this.assertEqual(null, MDToken.tokenizeEmail('user@example.com) foo'));
	}
}