Differential D15491 Diff 37342 src/utils/__tests__/PhutilHashingIteratorTestCase.php

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				<?php

				final class PhutilHashingIteratorTestCase extends PhutilTestCase {

				public function testHashingIterator() {
				$path = dirname(__FILE__).'/hashingiterator/mostlyprime.txt';

				$stream = fopen($path, 'rb');
				$algorithm = 'sha256';

				$stream_iterator = new PhutilStreamIterator($stream);
				$hashing_iterator = id(new PhutilHashingIterator($stream_iterator))
				->setAlgorithm($algorithm);

				$rope = new PhutilRope();
				foreach ($hashing_iterator as $block) {
				$rope->append($block);
				}

				$expect_data = Filesystem::readFile($path);
				$actual_data = $rope->getAsString();

				$this->assertEqual(
				$expect_data,
				$actual_data,
				pht('Data should be read correctly.'));

				$expect_hash =
				'd50af03db6c8b63084664f352d12bffb8f58022bdd67e3aba21f01e11c3b8939';

				$single_hash = hash($algorithm, $expect_data, $raw_output = false);
				$actual_hash = $hashing_iterator->getHash();

				$this->assertEqual(
				$expect_hash,
				$single_hash,
				pht('Expected hash should match freshly computed hash.'));

				$this->assertEqual(
				$expect_hash,
				$actual_hash,
				pht('Expected hash should also match iterator actual hash.'));
				}

				}