linter = new HtmlSyntaxLinter();
}
public function testDetectsDuplicateAttributes(): void
{
$html = '';
$issues = $this->linter->lint($html);
$this->assertNotEmpty($issues);
$duplicateIssues = array_filter($issues, fn($i) => $i->code === 'SYNTAX_DUPLICATE_ATTR');
$this->assertCount(1, $duplicateIssues);
}
public function testDetectsInvalidSelfClosingOnNonVoidElement(): void
{
$html = '';
$issues = $this->linter->lint($html);
$this->assertNotEmpty($issues);
$selfCloseIssues = array_filter($issues, fn($i) => $i->code === 'SYNTAX_INVALID_SELF_CLOSING');
$this->assertCount(1, $selfCloseIssues);
}
public function testDetectsUnclosedComments(): void
{
$html = '