/** Tests {@link BasePayloadReader#getKey} to read data at offset 0. */
@Test
public void getKeyAndValueZeroOffsetTest() throws Exception {
int offset = mTestWriter.insert(KEY1, VALUE1);
Assert.assertEquals(0, offset);
mTestWriter.close();
ByteBuffer buf = ByteBuffer.wrap(mTestOutStream.toByteArray());
mTestReader = new BasePayloadReader(buf);
Assert.assertEquals(ByteBuffer.wrap(KEY1), mTestReader.getKey(0));
Assert.assertEquals(ByteBuffer.wrap(VALUE1), mTestReader.getValue(0));
}
/** Tests {@link BasePayloadReader#getKey} to read data at non-zero offset. */
@Test
public void getKeyAndValueNonZeroOffsetTest() throws Exception {
mTestOutStream.write("meaningless padding".getBytes());
int offset = mTestWriter.insert(KEY1, VALUE1);
mTestWriter.close();
ByteBuffer buf = ByteBuffer.wrap(mTestOutStream.toByteArray());
mTestReader = new BasePayloadReader(buf);
Assert.assertEquals(ByteBuffer.wrap(KEY1), mTestReader.getKey(offset));
Assert.assertEquals(ByteBuffer.wrap(VALUE1), mTestReader.getValue(offset));
}
/** Tests {@link BasePayloadWriter#insert} by adding multiple key-value pairs. */
@Test
public void addMultipleKeyAndValuePairsTest() throws Exception {
int offset;
int expectedLength = 0;
offset = mTestWriter.insert(KEY1, VALUE1);
Assert.assertEquals(expectedLength, offset);
mTestWriter.flush();
expectedLength += 8 + KEY1.length + VALUE1.length;
Assert.assertEquals(expectedLength, mTestOutStream.getBytesWritten());
offset = mTestWriter.insert(KEY2, VALUE2);
Assert.assertEquals(expectedLength, offset);
mTestWriter.flush();
expectedLength += 8 + KEY2.length + VALUE2.length;
Assert.assertEquals(expectedLength, mTestOutStream.getBytesWritten());
}
/** Tests {@link BasePayloadWriter#insert} by adding zero-byte key or value. */
@Test
public void addZeroLengthKeyOrValueTest() throws Exception {
int offset;
int expectedLength = 0;
// Both key and value are empty, expect only 8 bytes of two integer length values
offset = mTestWriter.insert("".getBytes(), "".getBytes());
Assert.assertEquals(expectedLength, offset);
mTestWriter.flush();
expectedLength += 8;
Assert.assertEquals(expectedLength, mTestOutStream.getBytesWritten());
offset = mTestWriter.insert(KEY1, "".getBytes());
Assert.assertEquals(expectedLength, offset);
mTestWriter.flush();
expectedLength += 8 + KEY1.length;
Assert.assertEquals(expectedLength, mTestOutStream.getBytesWritten());
offset = mTestWriter.insert("".getBytes(), VALUE1);
Assert.assertEquals(expectedLength, offset);
mTestWriter.flush();
expectedLength += 8 + VALUE1.length;
Assert.assertEquals(expectedLength, mTestOutStream.getBytesWritten());
}
