ObjectUtilTest Class — netty Architecture

Source Code

common/src/test/java/io/netty/util/internal/ObjectUtilTest.java lines 32–614

public class ObjectUtilTest {

    private static final Object NULL_OBJECT = null;

    private static final Object NON_NULL_OBJECT = "Object is not null";
    private static final String NON_NULL_EMPTY_STRING = "";
    private static final String NON_NULL_WHITESPACE_STRING = "  ";
    private static final Object[] NON_NULL_EMPTY_OBJECT_ARRAY = {};
    private static final Object[] NON_NULL_FILLED_OBJECT_ARRAY = { NON_NULL_OBJECT };
    private static final CharSequence NULL_CHARSEQUENCE = (CharSequence) NULL_OBJECT;
    private static final CharSequence NON_NULL_CHARSEQUENCE = (CharSequence) NON_NULL_OBJECT;
    private static final CharSequence NON_NULL_EMPTY_CHARSEQUENCE = (CharSequence) NON_NULL_EMPTY_STRING;
    private static final byte[] NON_NULL_EMPTY_BYTE_ARRAY = {};
    private static final byte[] NON_NULL_FILLED_BYTE_ARRAY = { (byte) 0xa };
    private static final char[] NON_NULL_EMPTY_CHAR_ARRAY = {};
    private static final char[] NON_NULL_FILLED_CHAR_ARRAY = { 'A' };

    private static final String NULL_NAME = "IS_NULL";
    private static final String NON_NULL_NAME = "NOT_NULL";
    private static final String NON_NULL_EMPTY_NAME = "NOT_NULL_BUT_EMPTY";

    private static final String TEST_RESULT_NULLEX_OK = "Expected a NPE/IAE";
    private static final String TEST_RESULT_NULLEX_NOK = "Expected no exception";
    private static final String TEST_RESULT_EXTYPE_NOK = "Expected type not found";

    private static final int ZERO_INT = 0;
    private static final long ZERO_LONG = 0;
    private static final double ZERO_DOUBLE = 0.0d;
    private static final float ZERO_FLOAT = 0.0f;

    private static final int POS_ONE_INT = 1;
    private static final long POS_ONE_LONG = 1;
    private static final double POS_ONE_DOUBLE = 1.0d;
    private static final float POS_ONE_FLOAT = 1.0f;

    private static final int NEG_ONE_INT = -1;
    private static final long NEG_ONE_LONG = -1;
    private static final double NEG_ONE_DOUBLE = -1.0d;
    private static final float NEG_ONE_FLOAT = -1.0f;

    private static final String NUM_POS_NAME = "NUMBER_POSITIVE";
    private static final String NUM_ZERO_NAME = "NUMBER_ZERO";
    private static final String NUM_NEG_NAME = "NUMBER_NEGATIVE";

    @Test
    public void testCheckNotNull() {
        Exception actualEx = null;
        try {
            ObjectUtil.checkNotNull(NON_NULL_OBJECT, NON_NULL_NAME);
        } catch (Exception e) {
            actualEx = e;
        }
        assertNull(actualEx, TEST_RESULT_NULLEX_NOK);

        actualEx = null;
        try {
            ObjectUtil.checkNotNull(NULL_OBJECT, NULL_NAME);
        } catch (Exception e) {
            actualEx = e;
        }
        assertNotNull(actualEx, TEST_RESULT_NULLEX_OK);
        assertTrue(actualEx instanceof NullPointerException, TEST_RESULT_EXTYPE_NOK);
    }

    @Test
    public void testCheckNotNullWithIAE() {
        Exception actualEx = null;
        try {
            ObjectUtil.checkNotNullWithIAE(NON_NULL_OBJECT, NON_NULL_NAME);
        } catch (Exception e) {
            actualEx = e;
        }
        assertNull(actualEx, TEST_RESULT_NULLEX_NOK);

        actualEx = null;
        try {
            ObjectUtil.checkNotNullWithIAE(NULL_OBJECT, NULL_NAME);
        } catch (Exception e) {
            actualEx = e;
        }
        assertNotNull(actualEx, TEST_RESULT_NULLEX_OK);