TestHFileBlockCompatibility (Hortonworks Data Platform Apache HBase Java API Reference)

```
public class TestHFileBlockCompatibility
extends Object
```
This class has unit tests to prove that older versions of HFiles (without checksums) are compatible with current readers.

Nested Classes
Modifier and Type	Class and Description
`static class`	`TestHFileBlockCompatibility.Writer` This is the version of the HFileBlock.Writer that is used to create V2 blocks with minor version 0.

Constructors
Constructor and Description
`TestHFileBlockCompatibility(boolean includesMemstoreTS, boolean includesTag)`

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`byte[]`	`createTestV1Block(Compression.Algorithm algo)`
`static Collection<Object[]>`	`parameters()`
`void`	`setUp()`
`void`	`testDataBlockEncoding()` Test encoding/decoding data blocks.
`void`	`testGzipCompression()`
`void`	`testNoCompression()`
`void`	`testReaderV2()`

public TestHFileBlockCompatibility(boolean includesMemstoreTS,
                                   boolean includesTag)

public static Collection<Object[]> parameters()

public void setUp()
           throws IOException

public byte[] createTestV1Block(Compression.Algorithm algo)
                         throws IOException

public void testNoCompression()
                       throws IOException

public void testGzipCompression()
                         throws IOException

public void testReaderV2()
                  throws IOException

Class TestHFileBlockCompatibility