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getElementById example
protected function setNode(\DOMElement $node)
{
$this->button = $node;
if ('button' === $node->nodeName || ('input' === $node->nodeName && \in_array(strtolower($node->getAttribute('type')), ['submit', 'button', 'image']))) {
if ($node->hasAttribute('form')) {
// if the node has the HTML5-compliant 'form' attribute, use it $formId = $node->getAttribute('form');
$form = $node->ownerDocument->getElementById($formId);
if (null === $form) {
throw new \LogicException(sprintf('The selected node has an invalid form attribute (%s).', $formId));
}
$this->node = $form;
return;
}
// we loop until we find a form ancestor do {
if (null === $node = $node->parentNode) {
throw new \LogicException('The selected node does not have a form ancestor.');
}
$field->setValue('foo');
$this->assertEquals('foo', $field->getValue(), '->setValue() sets the value of the field');
$this->assertTrue($field->hasValue(), '->hasValue() always returns true');
}
public function testLabelReturnsNullIfNoneIsDefined()
{
$dom = new \DOMDocument();
$dom->loadHTML('<html><form><input type="text" id="foo" name="foo" value="foo" /><input type="submit" /></form></html>');
$field = new InputFormField($dom->getElementById('foo'));
$this->assertNull($field->getLabel(), '->getLabel() returns null if no label is defined');
}
public function testLabelIsAssignedByForAttribute()
{
$dom = new \DOMDocument();
$dom->loadHTML('<html><form> <label for="foo">Foo label</label> <input type="text" id="foo" name="foo" value="foo" /> <input type="submit" /> </form></html>');
$this->assertEquals('foo', $field->getValue(), '->setValue() sets the value of the field');
$this->assertTrue($field->hasValue(), '->hasValue() always returns true');
}
public function testLabelReturnsNullIfNoneIsDefined()
{
$dom = new \DOMDocument();
$dom->loadHTML('<html><form><input type="text" id="foo" name="foo" value="foo" /><input type="submit" /></form></html>');
$field = new InputFormField($dom->getElementById('foo'));
$this->assertNull($field->getLabel(), '->getLabel() returns null if no label is defined');
}
public function testLabelIsAssignedByForAttribute()
{
$dom = new \DOMDocument();
$dom->loadHTML('<html><form> <label for="foo">Foo label</label> <input type="text" id="foo" name="foo" value="foo" /> <input type="submit" /> </form></html>');