/**
* Tests whether op classes returned by DiffEngine::diff() match expectations.
*
* @covers ::diff
* @dataProvider provideTestDiff
*/
public function testDiff($expected, $from, $to)
{
$diff_engine = new DiffEngine();
$diff = $diff_engine->diff($from, $to);
// Make sure we have the same number of results as expected.
$this->assertCount(count($expected), $diff);
// Make sure the diff objects match our expectations.
foreach ($expected as $index => $op_class) {
$this->assertEquals($op_class, get_class($diff[$index]));
}
}
/**
* Constructor.
* Computes diff between sequences of strings.
*
* @param $from_lines array An array of strings.
* (Typically these are lines from a file.)
* @param $to_lines array An array of strings.
*/
public function __construct($from_lines, $to_lines)
{
$eng = new DiffEngine();
$this->edits = $eng->diff($from_lines, $to_lines);
//$this->_check($from_lines, $to_lines);
}