dillard
9bfb6ae334
Dev tooling via composer (phpunit, psalm, nextcloud/ocp); vendor/ is mounted from outside the repository by a helper script. 28 unit tests ported from the phase-0 spikes (round trips, corruption, wrong keys, dedup, incremental runs, partial restore, tampering, object binding, time-boxed steps, file changed between steps).
124 lines
4.3 KiB
PHP
124 lines
4.3 KiB
PHP
<?php
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declare(strict_types=1);
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namespace OCA\NgBackup\Tests\Unit\Repository;
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use OCA\NgBackup\Backend\LocalBackend;
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use OCA\NgBackup\Crypto\CryptoException;
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use OCA\NgBackup\Repository\Repository;
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use OCA\NgBackup\Repository\RepositoryException;
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use OCA\NgBackup\Tests\Unit\TempDirTrait;
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use PHPUnit\Framework\TestCase;
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class RepositoryTest extends TestCase {
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use TempDirTrait;
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private string $src;
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private LocalBackend $backend;
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protected function setUp(): void {
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$this->src = $this->tempDir();
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$this->backend = new LocalBackend($this->tempDir());
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for ($i = 0; $i < 30; $i++) {
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$this->write("docs/d" . ($i % 3) . "/note-$i.txt", str_repeat("regel $i ", 500));
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}
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$this->write('bin/random.bin', random_bytes(9 * 1048576 + 123)); // spans 3 blobs
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$this->write('copies/a.bin', $same = random_bytes(5 * 1048576));
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$this->write('copies/b.bin', $same);
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$this->write('empty.txt', '');
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}
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private function write(string $rel, string $data): void {
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@mkdir(dirname($this->src . '/' . $rel), 0700, true);
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file_put_contents($this->src . '/' . $rel, $data);
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}
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public function testBackupAndRestoreAreIdentical(): void {
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$repo = Repository::init($this->backend, 'pw');
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$r = $repo->backupDirectory($this->src);
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$this->assertSame(34, $r['files']);
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$this->assertGreaterThanOrEqual(2, $r['dupBlobs'], 'identical copies are stored once');
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$target = $this->tempDir();
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Repository::open($this->backend, 'pw')->restore($r['snapshot'], $target);
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$this->assertSame(self::hashTree($this->src), self::hashTree($target));
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}
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public function testUnchangedRunReadsAndUploadsNothing(): void {
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$repo = Repository::init($this->backend, 'pw');
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$r1 = $repo->backupDirectory($this->src);
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$r2 = $repo->backupDirectory($this->src, $r1['snapshot']);
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$this->assertSame(0, $r2['read']);
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$this->assertSame(0, $r2['uploaded']);
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}
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public function testChangeInLargeFileUploadsOnlyAffectedBlob(): void {
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$repo = Repository::init($this->backend, 'pw');
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$r1 = $repo->backupDirectory($this->src);
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$fh = fopen($this->src . '/bin/random.bin', 'r+b');
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fseek($fh, 5 * 1048576);
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fwrite($fh, 'changed');
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fclose($fh);
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touch($this->src . '/bin/random.bin', time() + 10);
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$r2 = $repo->backupDirectory($this->src, $r1['snapshot']);
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$this->assertSame(1, $r2['read']);
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$this->assertSame(1, $r2['newBlobs']);
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}
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public function testPartialRestore(): void {
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$repo = Repository::init($this->backend, 'pw');
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$r = $repo->backupDirectory($this->src);
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$target = $this->tempDir();
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$this->assertSame(10, $repo->restore($r['snapshot'], $target, 'docs/d1/'));
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}
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public function testWrongPassphrase(): void {
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Repository::init($this->backend, 'pw');
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$this->expectException(CryptoException::class);
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Repository::open($this->backend, 'other');
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}
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public function testInitRefusesExistingRepository(): void {
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Repository::init($this->backend, 'pw');
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$this->expectException(RepositoryException::class);
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Repository::init($this->backend, 'pw');
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}
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public function testTamperedPackIsDetected(): void {
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$repo = Repository::init($this->backend, 'pw');
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$r = $repo->backupDirectory($this->src);
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$root = (new \ReflectionProperty(LocalBackend::class, 'root'))->getValue($this->backend);
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$pack = $root . '/' . $this->backend->list('packs')[0];
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$bytes = file_get_contents($pack);
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$bytes[200] = chr(ord($bytes[200]) ^ 0xff);
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file_put_contents($pack, $bytes);
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$this->expectException(\RuntimeException::class);
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$repo->restore($r['snapshot'], $this->tempDir());
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}
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public function testBlobWriterAndReadLinesAcrossBlobBoundaries(): void {
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$repo = Repository::init($this->backend, 'pw');
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$stats = [];
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$writer = $repo->blobWriter($stats);
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$lines = [];
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for ($i = 0; $i < 20000; $i++) {
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$lines[] = json_encode(['i' => $i, 'pad' => str_repeat('x', $i % 400)]);
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}
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$writer->write(implode("\n", $lines) . "\n");
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$blobs = $writer->finish();
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$repo->flushPacks();
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$this->assertGreaterThan(1, count($blobs));
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$this->assertSame($lines, iterator_to_array(Repository::open($this->backend, 'pw')->readLines($blobs), false));
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}
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public function testObjectsAreBoundToTheirPath(): void {
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$repo = Repository::init($this->backend, 'pw');
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$repo->putObject('db/1', 'one');
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$root = (new \ReflectionProperty(LocalBackend::class, 'root'))->getValue($this->backend);
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copy("$root/db/1", "$root/db/2");
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$this->expectException(CryptoException::class);
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$repo->getObject('db/2');
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}
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}
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