| /* |
| * Copyright (C) 2009, 2020 Google Inc. and others |
| * |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Distribution License v. 1.0 which is available at |
| * https://www.eclipse.org/org/documents/edl-v10.php. |
| * |
| * SPDX-License-Identifier: BSD-3-Clause |
| */ |
| |
| package org.eclipse.jgit.dircache; |
| |
| import static java.time.Instant.EPOCH; |
| import static org.junit.Assert.assertArrayEquals; |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertSame; |
| import static org.junit.Assert.assertTrue; |
| import static org.junit.Assert.fail; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.ByteArrayOutputStream; |
| import java.io.IOException; |
| import java.security.MessageDigest; |
| import java.time.Instant; |
| import java.util.concurrent.TimeUnit; |
| |
| import org.eclipse.jgit.dircache.DirCache.DirCacheVersion; |
| import org.eclipse.jgit.lib.Constants; |
| import org.eclipse.jgit.lib.FileMode; |
| import org.eclipse.jgit.lib.ObjectId; |
| import org.eclipse.jgit.util.MutableInteger; |
| import org.junit.Test; |
| |
| public class DirCacheEntryTest { |
| @Test |
| public void testIsValidPath() { |
| assertTrue(isValidPath("a")); |
| assertTrue(isValidPath("a/b")); |
| assertTrue(isValidPath("ab/cd/ef")); |
| |
| assertFalse(isValidPath("")); |
| assertFalse(isValidPath("/a")); |
| assertFalse(isValidPath("a//b")); |
| assertFalse(isValidPath("ab/cd//ef")); |
| assertFalse(isValidPath("a/")); |
| assertFalse(isValidPath("ab/cd/ef/")); |
| assertFalse(isValidPath("a\u0000b")); |
| } |
| |
| @SuppressWarnings("unused") |
| private static boolean isValidPath(String path) { |
| try { |
| new DirCacheEntry(path); |
| return true; |
| } catch (InvalidPathException e) { |
| return false; |
| } |
| } |
| |
| private static void checkPath(DirCacheVersion indexVersion, |
| DirCacheEntry previous, String name) throws IOException { |
| DirCacheEntry dce = new DirCacheEntry(name); |
| long now = System.currentTimeMillis(); |
| long anHourAgo = now - TimeUnit.HOURS.toMillis(1); |
| dce.setLastModified(Instant.ofEpochMilli(anHourAgo)); |
| ByteArrayOutputStream out = new ByteArrayOutputStream(); |
| dce.write(out, indexVersion, previous); |
| byte[] raw = out.toByteArray(); |
| MessageDigest md0 = Constants.newMessageDigest(); |
| md0.update(raw); |
| ByteArrayInputStream in = new ByteArrayInputStream(raw); |
| MutableInteger infoAt = new MutableInteger(); |
| byte[] sharedInfo = new byte[raw.length]; |
| MessageDigest md = Constants.newMessageDigest(); |
| DirCacheEntry read = new DirCacheEntry(sharedInfo, infoAt, in, md, |
| Instant.ofEpochMilli(now), indexVersion, previous); |
| assertEquals("Paths of length " + name.length() + " should match", name, |
| read.getPathString()); |
| assertEquals("Should have been fully read", -1, in.read()); |
| assertArrayEquals("Digests should match", md0.digest(), |
| md.digest()); |
| } |
| |
| @Test |
| public void testLongPath() throws Exception { |
| StringBuilder name = new StringBuilder(4094 + 16); |
| for (int i = 0; i < 4094; i++) { |
| name.append('a'); |
| } |
| for (int j = 0; j < 16; j++) { |
| checkPath(DirCacheVersion.DIRC_VERSION_EXTENDED, null, |
| name.toString()); |
| name.append('b'); |
| } |
| } |
| |
| @Test |
| public void testLongPathV4() throws Exception { |
| StringBuilder name = new StringBuilder(4094 + 16); |
| for (int i = 0; i < 4094; i++) { |
| name.append('a'); |
| } |
| DirCacheEntry previous = new DirCacheEntry(name.toString()); |
| for (int j = 0; j < 16; j++) { |
| checkPath(DirCacheVersion.DIRC_VERSION_PATHCOMPRESS, previous, |
| name.toString()); |
| name.append('b'); |
| } |
| } |
| |
| @Test |
| public void testShortPath() throws Exception { |
| StringBuilder name = new StringBuilder(1 + 16); |
| name.append('a'); |
| for (int j = 0; j < 16; j++) { |
| checkPath(DirCacheVersion.DIRC_VERSION_EXTENDED, null, |
| name.toString()); |
| name.append('b'); |
| } |
| } |
| |
| @Test |
| public void testShortPathV4() throws Exception { |
| StringBuilder name = new StringBuilder(1 + 16); |
| name.append('a'); |
| DirCacheEntry previous = new DirCacheEntry(name.toString()); |
| for (int j = 0; j < 16; j++) { |
| checkPath(DirCacheVersion.DIRC_VERSION_PATHCOMPRESS, previous, |
| name.toString()); |
| name.append('b'); |
| } |
| } |
| |
| @Test |
| public void testPathV4() throws Exception { |
| StringBuilder name = new StringBuilder(); |
| for (int i = 0; i < 20; i++) { |
| name.append('a'); |
| } |
| DirCacheEntry previous = new DirCacheEntry(name.toString()); |
| for (int j = 0; j < 20; j++) { |
| name.setLength(name.length() - 1); |
| String newName = name.toString() + "bbb"; |
| checkPath(DirCacheVersion.DIRC_VERSION_PATHCOMPRESS, previous, |
| newName); |
| } |
| } |
| |
| @SuppressWarnings("unused") |
| @Test |
| public void testCreate_ByStringPath() { |
| assertEquals("a", new DirCacheEntry("a").getPathString()); |
| assertEquals("a/b", new DirCacheEntry("a/b").getPathString()); |
| |
| try { |
| new DirCacheEntry("/a"); |
| fail("Incorrectly created DirCacheEntry"); |
| } catch (IllegalArgumentException err) { |
| assertEquals("Invalid path: /a", err.getMessage()); |
| } |
| } |
| |
| @SuppressWarnings("unused") |
| @Test |
| public void testCreate_ByStringPathAndStage() { |
| DirCacheEntry e; |
| |
| e = new DirCacheEntry("a", 0); |
| assertEquals("a", e.getPathString()); |
| assertEquals(0, e.getStage()); |
| |
| e = new DirCacheEntry("a/b", 1); |
| assertEquals("a/b", e.getPathString()); |
| assertEquals(1, e.getStage()); |
| |
| e = new DirCacheEntry("a/c", 2); |
| assertEquals("a/c", e.getPathString()); |
| assertEquals(2, e.getStage()); |
| |
| e = new DirCacheEntry("a/d", 3); |
| assertEquals("a/d", e.getPathString()); |
| assertEquals(3, e.getStage()); |
| |
| try { |
| new DirCacheEntry("/a", 1); |
| fail("Incorrectly created DirCacheEntry"); |
| } catch (IllegalArgumentException err) { |
| assertEquals("Invalid path: /a", err.getMessage()); |
| } |
| |
| try { |
| new DirCacheEntry("a", -11); |
| fail("Incorrectly created DirCacheEntry"); |
| } catch (IllegalArgumentException err) { |
| assertEquals("Invalid stage -11 for path a", err.getMessage()); |
| } |
| |
| try { |
| new DirCacheEntry("a", 4); |
| fail("Incorrectly created DirCacheEntry"); |
| } catch (IllegalArgumentException err) { |
| assertEquals("Invalid stage 4 for path a", err.getMessage()); |
| } |
| } |
| |
| @Test |
| public void testSetFileMode() { |
| final DirCacheEntry e = new DirCacheEntry("a"); |
| |
| assertEquals(0, e.getRawMode()); |
| |
| e.setFileMode(FileMode.REGULAR_FILE); |
| assertSame(FileMode.REGULAR_FILE, e.getFileMode()); |
| assertEquals(FileMode.REGULAR_FILE.getBits(), e.getRawMode()); |
| |
| e.setFileMode(FileMode.EXECUTABLE_FILE); |
| assertSame(FileMode.EXECUTABLE_FILE, e.getFileMode()); |
| assertEquals(FileMode.EXECUTABLE_FILE.getBits(), e.getRawMode()); |
| |
| e.setFileMode(FileMode.SYMLINK); |
| assertSame(FileMode.SYMLINK, e.getFileMode()); |
| assertEquals(FileMode.SYMLINK.getBits(), e.getRawMode()); |
| |
| e.setFileMode(FileMode.GITLINK); |
| assertSame(FileMode.GITLINK, e.getFileMode()); |
| assertEquals(FileMode.GITLINK.getBits(), e.getRawMode()); |
| |
| try { |
| e.setFileMode(FileMode.MISSING); |
| fail("incorrectly accepted FileMode.MISSING"); |
| } catch (IllegalArgumentException err) { |
| assertEquals("Invalid mode 0 for path a", err.getMessage()); |
| } |
| |
| try { |
| e.setFileMode(FileMode.TREE); |
| fail("incorrectly accepted FileMode.TREE"); |
| } catch (IllegalArgumentException err) { |
| assertEquals("Invalid mode 40000 for path a", err.getMessage()); |
| } |
| } |
| |
| @Test |
| public void testCopyMetaDataWithStage() { |
| copyMetaDataHelper(false); |
| } |
| |
| @Test |
| public void testCopyMetaDataWithoutStage() { |
| copyMetaDataHelper(true); |
| } |
| |
| private static void copyMetaDataHelper(boolean keepStage) { |
| DirCacheEntry e = new DirCacheEntry("some/path", DirCacheEntry.STAGE_2); |
| e.setAssumeValid(false); |
| e.setCreationTime(2L); |
| e.setFileMode(FileMode.EXECUTABLE_FILE); |
| e.setLastModified(EPOCH.plusMillis(3L)); |
| e.setLength(100L); |
| e.setObjectId(ObjectId |
| .fromString("0123456789012345678901234567890123456789")); |
| e.setUpdateNeeded(true); |
| |
| DirCacheEntry f = new DirCacheEntry("someother/path", |
| DirCacheEntry.STAGE_1); |
| f.setAssumeValid(true); |
| f.setCreationTime(10L); |
| f.setFileMode(FileMode.SYMLINK); |
| f.setLastModified(EPOCH.plusMillis(20L)); |
| f.setLength(100000000L); |
| f.setObjectId(ObjectId |
| .fromString("1234567890123456789012345678901234567890")); |
| f.setUpdateNeeded(true); |
| |
| e.copyMetaData(f, keepStage); |
| assertTrue(e.isAssumeValid()); |
| assertEquals(10L, e.getCreationTime()); |
| assertEquals( |
| ObjectId.fromString("1234567890123456789012345678901234567890"), |
| e.getObjectId()); |
| assertEquals(FileMode.SYMLINK, e.getFileMode()); |
| assertEquals(EPOCH.plusMillis(20L), e.getLastModifiedInstant()); |
| assertEquals(100000000L, e.getLength()); |
| if (keepStage) |
| assertEquals(DirCacheEntry.STAGE_2, e.getStage()); |
| else |
| assertEquals(DirCacheEntry.STAGE_1, e.getStage()); |
| assertTrue(e.isUpdateNeeded()); |
| assertEquals("some/path", e.getPathString()); |
| } |
| } |