/**
* Create a new Diff from two strings.
*
* @param string $from From/before string.
* @param string $to To/after string.
* @param \nochso\Diff\ContextDiff|null $context Optional ContextDiff to control the surrounding
* context lines. If null, a default ContextDiff
* is used.
* @param \nochso\Diff\LCS\LongestCommonSubsequence|null $lcs Optional LCS implementation to use. If null, an
* appropiate implementation will be chosen automatically.
*
* @return \nochso\Diff\Diff
*/
public static function create($from, $to, ContextDiff $context = null, LongestCommonSubsequence $lcs = null)
{
$diff = new self();
$differ = new Differ();
$fullDiffLines = $differ->diffToArray($from, $to, $lcs);
if ($context === null) {
$context = new ContextDiff();
}
$diff->addLineEndingWarning($from, $to);
$contextDiffLines = $context->create($fullDiffLines);
foreach ($contextDiffLines as $contextDiffLine) {
$diff->diffLines[] = new DiffLine($contextDiffLine);
}
return $diff;
}
/**
* @param array $expected
* @param string $from
* @param string $to
* @dataProvider arrayProvider
* @covers nochso\Diff\Format\Upstream::format
* @covers nochso\Diff\LCS\MemoryEfficientImplementation
*/
public function testArrayRepresentationOfDiffCanBeDiffedUsingMemoryEfficientLcsImplementation(array $expected, $from, $to)
{
$this->assertEquals($expected, $this->differ->diffToArray($from, $to, new MemoryEfficientImplementation()));
}