Examples with EphemeralFileSystemAbstraction org.neo4j.graphdb.mockfs.EphemeralFileSystemAbstraction used on opensource projects

Example 31 with EphemeralFileSystemAbstraction

use of org.neo4j.graphdb.mockfs.EphemeralFileSystemAbstraction in project neo4j by neo4j.

the class SingleFilePageSwapperTest method setUp.

@Before
public void setUp() throws IOException {
    file = new File("file").getCanonicalFile();
    ephemeralFileSystem = new EphemeralFileSystemAbstraction();
    fileSystem = new DefaultFileSystemAbstraction();
}

Example 32 with EphemeralFileSystemAbstraction

use of org.neo4j.graphdb.mockfs.EphemeralFileSystemAbstraction in project neo4j by neo4j.

the class EphemeralFileSystemRule method snapshot.

public EphemeralFileSystemAbstraction snapshot(Runnable action) throws Exception {
    EphemeralFileSystemAbstraction snapshot = fs.snapshot();
    try {
        action.run();
    } finally {
        fs.close();
        fs = snapshot;
    }
    return fs;
}

Example 33 with EphemeralFileSystemAbstraction

use of org.neo4j.graphdb.mockfs.EphemeralFileSystemAbstraction in project neo4j by neo4j.

the class StateRecoveryManagerTest method shouldFailIfBothFilesAreEmpty.

@Test
public void shouldFailIfBothFilesAreEmpty() throws Exception {
    // given
    EphemeralFileSystemAbstraction fsa = fileSystemRule.get();
    fsa.mkdir(testDir.directory());
    File fileA = fileA();
    fsa.create(fileA);
    File fileB = fileB();
    fsa.create(fileB);
    StateRecoveryManager<Long> manager = new StateRecoveryManager<>(fsa, new LongMarshal());
    try {
        // when
        StateRecoveryManager.RecoveryStatus recoveryStatus = manager.recover(fileA, fileB);
        fail();
    } catch (IllegalStateException ex) {
    // then
    // expected
    }
}

Example 34 with EphemeralFileSystemAbstraction

use of org.neo4j.graphdb.mockfs.EphemeralFileSystemAbstraction in project neo4j by neo4j.

the class StateRecoveryManagerTest method shouldReturnTheEmptyFileAsPreviouslyInactiveWhenActiveContainsCorruptEntry.

@Test
public void shouldReturnTheEmptyFileAsPreviouslyInactiveWhenActiveContainsCorruptEntry() throws Exception {
    // given
    EphemeralFileSystemAbstraction fsa = fileSystemRule.get();
    fsa.mkdir(testDir.directory());
    File fileA = fileA();
    StoreChannel channel = fsa.create(fileA);
    ByteBuffer buffer = writeLong(999);
    channel.writeAll(buffer);
    channel.force(false);
    File fileB = fileB();
    channel = fsa.create(fileB);
    channel.close();
    StateRecoveryManager<Long> manager = new StateRecoveryManager<>(fsa, new LongMarshal());
    // when
    final StateRecoveryManager.RecoveryStatus recoveryStatus = manager.recover(fileA, fileB);
    // then
    assertEquals(999L, recoveryStatus.recoveredState());
    assertEquals(fileB, recoveryStatus.activeFile());
}

Example 35 with EphemeralFileSystemAbstraction

use of org.neo4j.graphdb.mockfs.EphemeralFileSystemAbstraction in project neo4j by neo4j.

the class StateRecoveryManagerTest method shouldReturnTheFullFileAsPreviouslyInactiveWhenActiveContainsCorruptEntry.

@Test
public void shouldReturnTheFullFileAsPreviouslyInactiveWhenActiveContainsCorruptEntry() throws Exception {
    // given
    EphemeralFileSystemAbstraction fsa = fileSystemRule.get();
    fsa.mkdir(testDir.directory());
    File fileA = fileA();
    StoreChannel channel = fsa.create(fileA);
    ByteBuffer buffer = writeLong(42);
    channel.writeAll(buffer);
    channel.force(false);
    buffer.clear();
    // extraneous bytes
    buffer.putLong(101);
    buffer.flip();
    channel.writeAll(buffer);
    channel.force(false);
    File fileB = fileB();
    fsa.create(fileB);
    StateRecoveryManager<Long> manager = new StateRecoveryManager<>(fsa, new LongMarshal());
    // when
    final StateRecoveryManager.RecoveryStatus recoveryStatus = manager.recover(fileA, fileB);
    // then
    assertEquals(fileB, recoveryStatus.activeFile());
}