com.bigdata.btree

Class TestGetBitsFromByteArray

java.lang.Object

junit.framework.Assert

junit.framework.TestCase

junit.framework.TestCase2

com.bigdata.btree.TestGetBitsFromByteArray

All Implemented Interfaces:

junit.framework.Test

public class TestGetBitsFromByteArray
extends TestCase2

Unit tests for BytesUtil.getBits(byte[], int, int)

Version:

$Id$

Author:

Bryan Thompson

Nested Class Summary

Nested classes/interfaces inherited from class junit.framework.TestCase2

TestCase2.MyProperties, TestCase2.RandomType

Field Summary

Fields inherited from class junit.framework.TestCase2

_randomType, log

Constructor Summary

Constructors

Constructor and Description
TestGetBitsFromByteArray()
TestGetBitsFromByteArray(String name)

Method Summary

Methods

Modifier and Type	Method and Description
void	test_getBitsFromByteArray_01() byte[4] (32-bits) with all bits zero.
void	test_getBitsFromByteArray_02() byte[4] (32-bits) with LSB ONE.
void	test_getBitsFromByteArray_03() byte[4] (32-bits) with bit ONE (1) set.
void	test_getBitsFromByteArray_04() byte[4] (32-bits) with MSB ONE (this test case is the mostly likely to run a foul of a sign bit extension).
void	test_getBitsFromByteArray_05() byte[4] (32-bits) with slice in the 2nd byte.
void	test_getBitsFromByteArray_06() byte[2] (16-bits)
void	test_getBitsFromByteArray_correctRejection_nullArg()
void	test_getBitsFromByteArray_correctRejection_off_and_len_01() offset may be zero, but not negative.
void	test_getBitsFromByteArray_correctRejection_off_and_len_02() length may be zero, but not negative.
void	test_getBitsFromByteArray_correctRejection_off_and_len_03() length may address all bits (8) in a single byte, but not the 9th bit.
void	test_getBitsFromByteArray_correctRejection_off_and_len_04() length may address all bits (32) in 4 bytes, but not 33 bits since the return value would be larger than an int32.
void	test_getBitsFromByteArray_correctRejection_off_and_len_05() length may address (32) bits in 5 bytes, but not 33 bits since the return value would be larger than an int32.
void	test_getBitsFromByteArray_zeroLength() You can request a zero length slice starting at bit zero of a zero length byte[].
void	test_stress_InputBitStream_compatible() A stress test for compatibility with InputBitStream.

Methods inherited from class junit.framework.TestCase2

assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEqualsWithinUlps, assertSameArray, assertSameArray, assertSameBigDecimal, assertSameBigDecimal, assertSameBigInteger, assertSameBigInteger, assertSameIterator, assertSameIterator, assertSameIteratorAnyOrder, assertSameIteratorAnyOrder, assertSameValue, assertSameValue, assertZeroUlps, assertZeroUlps, fail, getInnerCause, getNormalInt, getProjectBuildPath, getProperties, getRandomObject, getRandomObject, getRandomOrder, getRandomString, getTestInputStream, getTestResource, getTestResource, getUlps, getUlps, isDEBUG, isDEBUG, isINFO, isINFO, isInnerCause, logProperties

Methods inherited from class junit.framework.TestCase

assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertFalse, assertFalse, assertNotNull, assertNotNull, assertNotSame, assertNotSame, assertNull, assertNull, assertSame, assertSame, assertTrue, assertTrue, countTestCases, createResult, fail, fail, failNotEquals, failNotSame, failSame, format, getName, run, run, runBare, runTest, setName, setUp, tearDown, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

TestGetBitsFromByteArray

public TestGetBitsFromByteArray()

TestGetBitsFromByteArray

public TestGetBitsFromByteArray(String name)

Method Detail

test_getBitsFromByteArray_correctRejection_nullArg

public void test_getBitsFromByteArray_correctRejection_nullArg()

test_getBitsFromByteArray_correctRejection_off_and_len_01

public void test_getBitsFromByteArray_correctRejection_off_and_len_01()

offset may be zero, but not negative.

test_getBitsFromByteArray_correctRejection_off_and_len_02

public void test_getBitsFromByteArray_correctRejection_off_and_len_02()

length may be zero, but not negative.

test_getBitsFromByteArray_correctRejection_off_and_len_03

public void test_getBitsFromByteArray_correctRejection_off_and_len_03()

length may address all bits (8) in a single byte, but not the 9th bit.

test_getBitsFromByteArray_correctRejection_off_and_len_04

public void test_getBitsFromByteArray_correctRejection_off_and_len_04()

length may address all bits (32) in 4 bytes, but not 33 bits since the return value would be larger than an int32.

test_getBitsFromByteArray_correctRejection_off_and_len_05

public void test_getBitsFromByteArray_correctRejection_off_and_len_05()

length may address (32) bits in 5 bytes, but not 33 bits since the return value would be larger than an int32.

test_getBitsFromByteArray_zeroLength

public void test_getBitsFromByteArray_zeroLength()

You can request a zero length slice starting at bit zero of a zero length byte[].

test_getBitsFromByteArray_01

public void test_getBitsFromByteArray_01()

byte[4] (32-bits) with all bits zero.

test_getBitsFromByteArray_02

public void test_getBitsFromByteArray_02()

byte[4] (32-bits) with LSB ONE.

test_getBitsFromByteArray_03

public void test_getBitsFromByteArray_03()

byte[4] (32-bits) with bit ONE (1) set.

test_getBitsFromByteArray_04

public void test_getBitsFromByteArray_04()

byte[4] (32-bits) with MSB ONE (this test case is the mostly likely to run a foul of a sign bit extension).

test_getBitsFromByteArray_05

public void test_getBitsFromByteArray_05()

byte[4] (32-bits) with slice in the 2nd byte.

test_getBitsFromByteArray_06

public void test_getBitsFromByteArray_06()

byte[2] (16-bits)

test_stress_InputBitStream_compatible

public void test_stress_InputBitStream_compatible()
                                           throws IOException

A stress test for compatibility with InputBitStream. An array is filled with random bits and the behavior of InputBitStream and BytesUtil.getBits(byte[], int, int) is compared on a number of randomly selected bit slices.

Throws:

IOException