/**
* @param Diff $changes
* @param Snak $oldestMainSnak The old main snak, if present; otherwise, the new main snak
* @param Snak $newestMainSnak The new main snak, if present; otherwise, the old main snak
*
* @return string HTML
*/
private function visualizeQualifierChanges(Diff $changes, Snak $oldestMainSnak, Snak $newestMainSnak)
{
$html = '';
$msg = wfMessage('wikibase-diffview-qualifier')->inLanguage($this->languageCode);
$header = $msg->parse();
$oldClaimHeader = $this->snakVisualizer->getPropertyAndValueHeader($oldestMainSnak) . ' / ' . $header;
$newClaimHeader = $this->snakVisualizer->getPropertyAndValueHeader($newestMainSnak) . ' / ' . $header;
foreach ($changes as $change) {
$oldValue = null;
$newValue = null;
if ($change instanceof DiffOpAdd) {
$newValue = $change->getNewValue();
} elseif ($change instanceof DiffOpChange) {
$oldValue = $change->getOldValue();
$newValue = $change->getNewValue();
} elseif ($change instanceof DiffOpRemove) {
$oldValue = $change->getOldValue();
}
$oldValueHtml = $oldValue !== null ? $this->snakVisualizer->getPropertyAndDetailedValue($oldValue) : null;
$newValueHtml = $newValue !== null ? $this->snakVisualizer->getPropertyAndDetailedValue($newValue) : null;
$valueFormatter = new DiffOpValueFormatter($oldClaimHeader, $newClaimHeader, $oldValueHtml, $newValueHtml);
$html .= $valueFormatter->generateHtml();
}
return $html;
}
/**
* @dataProvider provideGenerateHtml
*/
public function testGenerateHtml($name, $oldValues, $newValues, $pattern)
{
$formatter = new DiffOpValueFormatter($name, $name, $oldValues, $newValues);
$html = $formatter->generateHtml();
$this->assertRegExp($pattern, $html);
}