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Java example source code file (EnumUtilsTest.java)

This example Java source code file (EnumUtilsTest.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

a11, a15, a22, amber, arraylist, class, green, iterable, list, purple, red, suppresswarnings, test, traffic, util

The EnumUtilsTest.java Java example source code

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.commons.lang3;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.EnumSet;
import java.util.List;
import java.util.Map;

import org.junit.Assert;
import org.junit.Test;

/**
 * 
 */
public class EnumUtilsTest {

    @Test
    public void testConstructable() {
        // enforce public constructor
        new EnumUtils();
    }

    @Test
    public void test_getEnumMap() {
        final Map<String, Traffic> test = EnumUtils.getEnumMap(Traffic.class);
        assertEquals( "getEnumMap not created correctly", "{RED=RED, AMBER=AMBER, GREEN=GREEN}", test.toString());
        assertEquals(3, test.size());
        assertTrue(test.containsKey("RED"));
        assertEquals(Traffic.RED, test.get("RED"));
        assertTrue(test.containsKey("AMBER"));
        assertEquals(Traffic.AMBER, test.get("AMBER"));
        assertTrue(test.containsKey("GREEN"));
        assertEquals(Traffic.GREEN, test.get("GREEN"));
        assertFalse(test.containsKey("PURPLE"));
    }

    @Test
    public void test_getEnumList() {
        final List<Traffic> test = EnumUtils.getEnumList(Traffic.class);
        assertEquals(3, test.size());
        assertEquals(Traffic.RED, test.get(0));
        assertEquals(Traffic.AMBER, test.get(1));
        assertEquals(Traffic.GREEN, test.get(2));
    }

    @Test
    public void test_isEnum() {
        assertTrue(EnumUtils.isValidEnum(Traffic.class, "RED"));
        assertTrue(EnumUtils.isValidEnum(Traffic.class, "AMBER"));
        assertTrue(EnumUtils.isValidEnum(Traffic.class, "GREEN"));
        assertFalse(EnumUtils.isValidEnum(Traffic.class, "PURPLE"));
        assertFalse(EnumUtils.isValidEnum(Traffic.class, null));
    }

    @Test(expected=NullPointerException.class)
    public void test_isEnum_nullClass() {
        EnumUtils.isValidEnum((Class<Traffic>) null, "PURPLE");
    }

    @Test
    public void test_getEnum() {
        assertEquals(Traffic.RED, EnumUtils.getEnum(Traffic.class, "RED"));
        assertEquals(Traffic.AMBER, EnumUtils.getEnum(Traffic.class, "AMBER"));
        assertEquals(Traffic.GREEN, EnumUtils.getEnum(Traffic.class, "GREEN"));
        assertEquals(null, EnumUtils.getEnum(Traffic.class, "PURPLE"));
        assertEquals(null, EnumUtils.getEnum(Traffic.class, null));
    }

    @Test(expected=NullPointerException.class)
    public void test_getEnum_nullClass() {
        EnumUtils.getEnum((Class<Traffic>) null, "PURPLE");
    }

    @Test(expected=NullPointerException.class)
    public void test_generateBitVector_nullClass() {
        EnumUtils.generateBitVector(null, EnumSet.of(Traffic.RED));
    }

    @Test(expected=NullPointerException.class)
    public void test_generateBitVectors_nullClass() {
        EnumUtils.generateBitVectors(null, EnumSet.of(Traffic.RED));
    }
    
    @Test(expected=NullPointerException.class)
    public void test_generateBitVector_nullIterable() {
        EnumUtils.generateBitVector(Traffic.class, (Iterable<Traffic>) null);
    }

    @Test(expected=NullPointerException.class)
    public void test_generateBitVectors_nullIterable() {
        EnumUtils.generateBitVectors(null, (Iterable<Traffic>) null);
    }
    
    @Test(expected=IllegalArgumentException.class)
    public void test_generateBitVector_nullElement() {
        EnumUtils.generateBitVector(Traffic.class, Arrays.asList(Traffic.RED, null));
    }
    
    @Test(expected=IllegalArgumentException.class)
    public void test_generateBitVectors_nullElement() {
        EnumUtils.generateBitVectors(Traffic.class, Arrays.asList(Traffic.RED, null));
    }
    
    @Test(expected=NullPointerException.class)
    public void test_generateBitVector_nullClassWithArray() {
        EnumUtils.generateBitVector(null, Traffic.RED);
    }
    
    @Test(expected=NullPointerException.class)
    public void test_generateBitVectors_nullClassWithArray() {
        EnumUtils.generateBitVectors(null, Traffic.RED);
    }
    
    @Test(expected=NullPointerException.class)
    public void test_generateBitVector_nullArray() {
        EnumUtils.generateBitVector(Traffic.class, (Traffic[]) null);
    }

    @Test(expected=NullPointerException.class)
    public void test_generateBitVectors_nullArray() {
        EnumUtils.generateBitVectors(Traffic.class, (Traffic[]) null);
    }
    
    @Test(expected=IllegalArgumentException.class)
    public void test_generateBitVector_nullArrayElement() {
        EnumUtils.generateBitVector(Traffic.class, Traffic.RED, null);
    }
    
    @Test(expected=IllegalArgumentException.class)
    public void test_generateBitVectors_nullArrayElement() {
        EnumUtils.generateBitVectors(Traffic.class, Traffic.RED, null);
    }
    
    @Test(expected=IllegalArgumentException.class)
    public void test_generateBitVector_longClass() {
        EnumUtils.generateBitVector(TooMany.class, EnumSet.of(TooMany.A1));
    }

    @Test(expected=IllegalArgumentException.class)
    public void test_generateBitVector_longClassWithArray() {
        EnumUtils.generateBitVector(TooMany.class, TooMany.A1);
    }

    @SuppressWarnings("unchecked")
    @Test(expected=IllegalArgumentException.class)
    public void test_generateBitVector_nonEnumClass() {
        @SuppressWarnings("rawtypes")
        final
        Class rawType = Object.class;
        @SuppressWarnings("rawtypes")
        final
        List rawList = new ArrayList();
        EnumUtils.generateBitVector(rawType, rawList);
    }
    
    @SuppressWarnings("unchecked")
    @Test(expected=IllegalArgumentException.class)
    public void test_generateBitVectors_nonEnumClass() {
        @SuppressWarnings("rawtypes")
        final
        Class rawType = Object.class;
        @SuppressWarnings("rawtypes")
        final
        List rawList = new ArrayList();
        EnumUtils.generateBitVectors(rawType, rawList);
    }
    
    @SuppressWarnings("unchecked")
    @Test(expected=IllegalArgumentException.class)
    public void test_generateBitVector_nonEnumClassWithArray() {
        @SuppressWarnings("rawtypes")
        final
        Class rawType = Object.class;
        EnumUtils.generateBitVector(rawType);
    }

    @SuppressWarnings("unchecked")
    @Test(expected=IllegalArgumentException.class)
    public void test_generateBitVectors_nonEnumClassWithArray() {
        @SuppressWarnings("rawtypes")
        final
        Class rawType = Object.class;
        EnumUtils.generateBitVectors(rawType);
    }
    
    @Test
    public void test_generateBitVector() {
        assertEquals(0L, EnumUtils.generateBitVector(Traffic.class, EnumSet.noneOf(Traffic.class)));
        assertEquals(1L, EnumUtils.generateBitVector(Traffic.class, EnumSet.of(Traffic.RED)));
        assertEquals(2L, EnumUtils.generateBitVector(Traffic.class, EnumSet.of(Traffic.AMBER)));
        assertEquals(4L, EnumUtils.generateBitVector(Traffic.class, EnumSet.of(Traffic.GREEN)));
        assertEquals(3L, EnumUtils.generateBitVector(Traffic.class, EnumSet.of(Traffic.RED, Traffic.AMBER)));
        assertEquals(5L, EnumUtils.generateBitVector(Traffic.class, EnumSet.of(Traffic.RED, Traffic.GREEN)));
        assertEquals(6L, EnumUtils.generateBitVector(Traffic.class, EnumSet.of(Traffic.AMBER, Traffic.GREEN)));
        assertEquals(7L, EnumUtils.generateBitVector(Traffic.class, EnumSet.of(Traffic.RED, Traffic.AMBER, Traffic.GREEN)));

        // 64 values Enum (to test whether no int<->long jdk convertion issue exists)
        assertEquals((1L << 31), EnumUtils.generateBitVector(Enum64.class, EnumSet.of(Enum64.A31)));
        assertEquals((1L << 32), EnumUtils.generateBitVector(Enum64.class, EnumSet.of(Enum64.A32)));
        assertEquals((1L << 63), EnumUtils.generateBitVector(Enum64.class, EnumSet.of(Enum64.A63)));
        assertEquals(Long.MIN_VALUE, EnumUtils.generateBitVector(Enum64.class, EnumSet.of(Enum64.A63)));
    }

    @Test
    public void test_generateBitVectors() {
        assertArrayEquals(EnumUtils.generateBitVectors(Traffic.class, EnumSet.noneOf(Traffic.class)), 0L);
        assertArrayEquals(EnumUtils.generateBitVectors(Traffic.class, EnumSet.of(Traffic.RED)), 1L);
        assertArrayEquals(EnumUtils.generateBitVectors(Traffic.class, EnumSet.of(Traffic.AMBER)), 2L);
        assertArrayEquals(EnumUtils.generateBitVectors(Traffic.class, EnumSet.of(Traffic.GREEN)), 4L);
        assertArrayEquals(EnumUtils.generateBitVectors(Traffic.class, EnumSet.of(Traffic.RED, Traffic.AMBER)), 3L);
        assertArrayEquals(EnumUtils.generateBitVectors(Traffic.class, EnumSet.of(Traffic.RED, Traffic.GREEN)), 5L);
        assertArrayEquals(EnumUtils.generateBitVectors(Traffic.class, EnumSet.of(Traffic.AMBER, Traffic.GREEN)), 6L);
        assertArrayEquals(EnumUtils.generateBitVectors(Traffic.class, EnumSet.of(Traffic.RED, Traffic.AMBER, Traffic.GREEN)), 7L);

        // 64 values Enum (to test whether no int<->long jdk convertion issue exists)
        assertArrayEquals(EnumUtils.generateBitVectors(Enum64.class, EnumSet.of(Enum64.A31)), (1L << 31));
        assertArrayEquals(EnumUtils.generateBitVectors(Enum64.class, EnumSet.of(Enum64.A32)), (1L << 32));
        assertArrayEquals(EnumUtils.generateBitVectors(Enum64.class, EnumSet.of(Enum64.A63)), (1L << 63));
        assertArrayEquals(EnumUtils.generateBitVectors(Enum64.class, EnumSet.of(Enum64.A63)), Long.MIN_VALUE);

        // More than 64 values Enum
        assertArrayEquals(EnumUtils.generateBitVectors(TooMany.class, EnumSet.of(TooMany.M2)), 1L, 0L);
        assertArrayEquals(EnumUtils.generateBitVectors(TooMany.class, EnumSet.of(TooMany.L2, TooMany.M2)), 1L, (1L << 63));
    }

    @Test
    public void test_generateBitVectorFromArray() {
        assertEquals(0L, EnumUtils.generateBitVector(Traffic.class));
        assertEquals(1L, EnumUtils.generateBitVector(Traffic.class, Traffic.RED));
        assertEquals(2L, EnumUtils.generateBitVector(Traffic.class, Traffic.AMBER));
        assertEquals(4L, EnumUtils.generateBitVector(Traffic.class, Traffic.GREEN));
        assertEquals(3L, EnumUtils.generateBitVector(Traffic.class, Traffic.RED, Traffic.AMBER));
        assertEquals(5L, EnumUtils.generateBitVector(Traffic.class, Traffic.RED, Traffic.GREEN));
        assertEquals(6L, EnumUtils.generateBitVector(Traffic.class, Traffic.AMBER, Traffic.GREEN));
        assertEquals(7L, EnumUtils.generateBitVector(Traffic.class, Traffic.RED, Traffic.AMBER, Traffic.GREEN));
        //gracefully handles duplicates:
        assertEquals(7L, EnumUtils.generateBitVector(Traffic.class, Traffic.RED, Traffic.AMBER, Traffic.GREEN, Traffic.GREEN));

        // 64 values Enum (to test whether no int<->long jdk convertion issue exists)
        assertEquals((1L << 31), EnumUtils.generateBitVector(Enum64.class, Enum64.A31));
        assertEquals((1L << 32), EnumUtils.generateBitVector(Enum64.class, Enum64.A32));
        assertEquals((1L << 63), EnumUtils.generateBitVector(Enum64.class, Enum64.A63));
        assertEquals(Long.MIN_VALUE, EnumUtils.generateBitVector(Enum64.class, Enum64.A63));
    }
    
    @Test
    public void test_generateBitVectorsFromArray() {
        assertArrayEquals(EnumUtils.generateBitVectors(Traffic.class), 0L);
        assertArrayEquals(EnumUtils.generateBitVectors(Traffic.class, Traffic.RED), 1L);
        assertArrayEquals(EnumUtils.generateBitVectors(Traffic.class, Traffic.AMBER), 2L);
        assertArrayEquals(EnumUtils.generateBitVectors(Traffic.class, Traffic.GREEN), 4L);
        assertArrayEquals(EnumUtils.generateBitVectors(Traffic.class, Traffic.RED, Traffic.AMBER), 3L);
        assertArrayEquals(EnumUtils.generateBitVectors(Traffic.class, Traffic.RED, Traffic.GREEN), 5L);
        assertArrayEquals(EnumUtils.generateBitVectors(Traffic.class, Traffic.AMBER, Traffic.GREEN), 6L);
        assertArrayEquals(EnumUtils.generateBitVectors(Traffic.class, Traffic.RED, Traffic.AMBER, Traffic.GREEN), 7L);
        //gracefully handles duplicates:
        assertArrayEquals(EnumUtils.generateBitVectors(Traffic.class, Traffic.RED, Traffic.AMBER, Traffic.GREEN, Traffic.GREEN), 7L);

        // 64 values Enum (to test whether no int<->long jdk convertion issue exists)
        assertArrayEquals(EnumUtils.generateBitVectors(Enum64.class, Enum64.A31), (1L << 31));
        assertArrayEquals(EnumUtils.generateBitVectors(Enum64.class, Enum64.A32), (1L << 32));
        assertArrayEquals(EnumUtils.generateBitVectors(Enum64.class, Enum64.A63), (1L << 63));
        assertArrayEquals(EnumUtils.generateBitVectors(Enum64.class, Enum64.A63), Long.MIN_VALUE);

        // More than 64 values Enum
        assertArrayEquals(EnumUtils.generateBitVectors(TooMany.class, TooMany.M2), 1L, 0L);
        assertArrayEquals(EnumUtils.generateBitVectors(TooMany.class, TooMany.L2, TooMany.M2), 1L, (1L << 63));

    }

    private void assertArrayEquals(final long[] actual, final long... expected) {
        Assert.assertArrayEquals(expected, actual);
    }

    @Test(expected=NullPointerException.class)
    public void test_processBitVector_nullClass() {
        final Class<Traffic> empty = null;
        EnumUtils.processBitVector(empty, 0L);
    }

    @Test(expected=NullPointerException.class)
    public void test_processBitVectors_nullClass() {
        final Class<Traffic> empty = null;
        EnumUtils.processBitVectors(empty, 0L);
    }

    @Test
    public void test_processBitVector() {
        assertEquals(EnumSet.noneOf(Traffic.class), EnumUtils.processBitVector(Traffic.class, 0L));
        assertEquals(EnumSet.of(Traffic.RED), EnumUtils.processBitVector(Traffic.class, 1L));
        assertEquals(EnumSet.of(Traffic.AMBER), EnumUtils.processBitVector(Traffic.class, 2L));
        assertEquals(EnumSet.of(Traffic.RED, Traffic.AMBER), EnumUtils.processBitVector(Traffic.class, 3L));
        assertEquals(EnumSet.of(Traffic.GREEN), EnumUtils.processBitVector(Traffic.class, 4L));
        assertEquals(EnumSet.of(Traffic.RED, Traffic.GREEN), EnumUtils.processBitVector(Traffic.class, 5L));
        assertEquals(EnumSet.of(Traffic.AMBER, Traffic.GREEN), EnumUtils.processBitVector(Traffic.class, 6L));
        assertEquals(EnumSet.of(Traffic.RED, Traffic.AMBER, Traffic.GREEN), EnumUtils.processBitVector(Traffic.class, 7L));

        // 64 values Enum (to test whether no int<->long jdk convertion issue exists)
        assertEquals(EnumSet.of(Enum64.A31), EnumUtils.processBitVector(Enum64.class, (1L << 31)));
        assertEquals(EnumSet.of(Enum64.A32), EnumUtils.processBitVector(Enum64.class, (1L << 32)));
        assertEquals(EnumSet.of(Enum64.A63), EnumUtils.processBitVector(Enum64.class, (1L << 63)));
        assertEquals(EnumSet.of(Enum64.A63), EnumUtils.processBitVector(Enum64.class, Long.MIN_VALUE));
    }

    @Test
    public void test_processBitVectors() {
        assertEquals(EnumSet.noneOf(Traffic.class), EnumUtils.processBitVectors(Traffic.class, 0L));
        assertEquals(EnumSet.of(Traffic.RED), EnumUtils.processBitVectors(Traffic.class, 1L));
        assertEquals(EnumSet.of(Traffic.AMBER), EnumUtils.processBitVectors(Traffic.class, 2L));
        assertEquals(EnumSet.of(Traffic.RED, Traffic.AMBER), EnumUtils.processBitVectors(Traffic.class, 3L));
        assertEquals(EnumSet.of(Traffic.GREEN), EnumUtils.processBitVectors(Traffic.class, 4L));
        assertEquals(EnumSet.of(Traffic.RED, Traffic.GREEN), EnumUtils.processBitVectors(Traffic.class, 5L));
        assertEquals(EnumSet.of(Traffic.AMBER, Traffic.GREEN), EnumUtils.processBitVectors(Traffic.class, 6L));
        assertEquals(EnumSet.of(Traffic.RED, Traffic.AMBER, Traffic.GREEN), EnumUtils.processBitVectors(Traffic.class, 7L));

        assertEquals(EnumSet.noneOf(Traffic.class), EnumUtils.processBitVectors(Traffic.class, 0L, 0L));
        assertEquals(EnumSet.of(Traffic.RED), EnumUtils.processBitVectors(Traffic.class, 0L, 1L));
        assertEquals(EnumSet.of(Traffic.AMBER), EnumUtils.processBitVectors(Traffic.class, 0L, 2L));
        assertEquals(EnumSet.of(Traffic.RED, Traffic.AMBER), EnumUtils.processBitVectors(Traffic.class, 0L, 3L));
        assertEquals(EnumSet.of(Traffic.GREEN), EnumUtils.processBitVectors(Traffic.class, 0L, 4L));
        assertEquals(EnumSet.of(Traffic.RED, Traffic.GREEN), EnumUtils.processBitVectors(Traffic.class, 0L, 5L));
        assertEquals(EnumSet.of(Traffic.AMBER, Traffic.GREEN), EnumUtils.processBitVectors(Traffic.class, 0L, 6L));
        assertEquals(EnumSet.of(Traffic.RED, Traffic.AMBER, Traffic.GREEN), EnumUtils.processBitVectors(Traffic.class, 0L, 7L));

        // demonstrate tolerance of irrelevant high-order digits:
        assertEquals(EnumSet.noneOf(Traffic.class), EnumUtils.processBitVectors(Traffic.class, 666L, 0L));
        assertEquals(EnumSet.of(Traffic.RED), EnumUtils.processBitVectors(Traffic.class, 666L, 1L));
        assertEquals(EnumSet.of(Traffic.AMBER), EnumUtils.processBitVectors(Traffic.class, 666L, 2L));
        assertEquals(EnumSet.of(Traffic.RED, Traffic.AMBER), EnumUtils.processBitVectors(Traffic.class, 666L, 3L));
        assertEquals(EnumSet.of(Traffic.GREEN), EnumUtils.processBitVectors(Traffic.class, 666L, 4L));
        assertEquals(EnumSet.of(Traffic.RED, Traffic.GREEN), EnumUtils.processBitVectors(Traffic.class, 666L, 5L));
        assertEquals(EnumSet.of(Traffic.AMBER, Traffic.GREEN), EnumUtils.processBitVectors(Traffic.class, 666L, 6L));
        assertEquals(EnumSet.of(Traffic.RED, Traffic.AMBER, Traffic.GREEN), EnumUtils.processBitVectors(Traffic.class, 666L, 7L));

        // 64 values Enum (to test whether no int<->long jdk convertion issue exists)
        assertEquals(EnumSet.of(Enum64.A31), EnumUtils.processBitVectors(Enum64.class, (1L << 31)));
        assertEquals(EnumSet.of(Enum64.A32), EnumUtils.processBitVectors(Enum64.class, (1L << 32)));
        assertEquals(EnumSet.of(Enum64.A63), EnumUtils.processBitVectors(Enum64.class, (1L << 63)));
        assertEquals(EnumSet.of(Enum64.A63), EnumUtils.processBitVectors(Enum64.class, Long.MIN_VALUE));
    }

    @Test(expected=IllegalArgumentException.class)
    public void test_processBitVector_longClass() {
        EnumUtils.processBitVector(TooMany.class, 0L);
    }
    
    public void test_processBitVectors_longClass() {
        assertEquals(EnumSet.noneOf(TooMany.class), EnumUtils.processBitVectors(TooMany.class, 0L));
        assertEquals(EnumSet.of(TooMany.A), EnumUtils.processBitVectors(TooMany.class, 1L));
        assertEquals(EnumSet.of(TooMany.B), EnumUtils.processBitVectors(TooMany.class, 2L));
        assertEquals(EnumSet.of(TooMany.A, TooMany.B), EnumUtils.processBitVectors(TooMany.class, 3L));
        assertEquals(EnumSet.of(TooMany.C), EnumUtils.processBitVectors(TooMany.class, 4L));
        assertEquals(EnumSet.of(TooMany.A, TooMany.C), EnumUtils.processBitVectors(TooMany.class, 5L));
        assertEquals(EnumSet.of(TooMany.B, TooMany.C), EnumUtils.processBitVectors(TooMany.class, 6L));
        assertEquals(EnumSet.of(TooMany.A, TooMany.B, TooMany.C), EnumUtils.processBitVectors(TooMany.class, 7L));

        assertEquals(EnumSet.noneOf(TooMany.class), EnumUtils.processBitVectors(TooMany.class, 0L, 0L));
        assertEquals(EnumSet.of(TooMany.A), EnumUtils.processBitVectors(TooMany.class, 0L, 1L));
        assertEquals(EnumSet.of(TooMany.B), EnumUtils.processBitVectors(TooMany.class, 0L, 2L));
        assertEquals(EnumSet.of(TooMany.A, TooMany.B), EnumUtils.processBitVectors(TooMany.class, 0L, 3L));
        assertEquals(EnumSet.of(TooMany.C), EnumUtils.processBitVectors(TooMany.class, 0L, 4L));
        assertEquals(EnumSet.of(TooMany.A, TooMany.C), EnumUtils.processBitVectors(TooMany.class, 0L, 5L));
        assertEquals(EnumSet.of(TooMany.B, TooMany.C), EnumUtils.processBitVectors(TooMany.class, 0L, 6L));
        assertEquals(EnumSet.of(TooMany.A, TooMany.B, TooMany.C), EnumUtils.processBitVectors(TooMany.class, 0L, 7L));
        assertEquals(EnumSet.of(TooMany.A, TooMany.B, TooMany.C), EnumUtils.processBitVectors(TooMany.class, 0L, 7L));

        assertEquals(EnumSet.of(TooMany.M2), EnumUtils.processBitVectors(TooMany.class, 1L, 0L));
        assertEquals(EnumSet.of(TooMany.A, TooMany.M2), EnumUtils.processBitVectors(TooMany.class, 1L, 1L));
        assertEquals(EnumSet.of(TooMany.B, TooMany.M2), EnumUtils.processBitVectors(TooMany.class, 1L, 2L));
        assertEquals(EnumSet.of(TooMany.A, TooMany.B, TooMany.M2), EnumUtils.processBitVectors(TooMany.class, 1L, 3L));
        assertEquals(EnumSet.of(TooMany.C, TooMany.M2), EnumUtils.processBitVectors(TooMany.class, 1L, 4L));
        assertEquals(EnumSet.of(TooMany.A, TooMany.C, TooMany.M2), EnumUtils.processBitVectors(TooMany.class, 1L, 5L));
        assertEquals(EnumSet.of(TooMany.B, TooMany.C, TooMany.M2), EnumUtils.processBitVectors(TooMany.class, 1L, 6L));
        assertEquals(EnumSet.of(TooMany.A, TooMany.B, TooMany.C, TooMany.M2), EnumUtils.processBitVectors(TooMany.class, 1L, 7L));
        assertEquals(EnumSet.of(TooMany.A, TooMany.B, TooMany.C, TooMany.M2), EnumUtils.processBitVectors(TooMany.class, 1L, 7L));

        // demonstrate tolerance of irrelevant high-order digits:
        assertEquals(EnumSet.of(TooMany.M2), EnumUtils.processBitVectors(TooMany.class, 9L, 0L));
        assertEquals(EnumSet.of(TooMany.A, TooMany.M2), EnumUtils.processBitVectors(TooMany.class, 9L, 1L));
        assertEquals(EnumSet.of(TooMany.B, TooMany.M2), EnumUtils.processBitVectors(TooMany.class, 9L, 2L));
        assertEquals(EnumSet.of(TooMany.A, TooMany.B, TooMany.M2), EnumUtils.processBitVectors(TooMany.class, 9L, 3L));
        assertEquals(EnumSet.of(TooMany.C, TooMany.M2), EnumUtils.processBitVectors(TooMany.class, 9L, 4L));
        assertEquals(EnumSet.of(TooMany.A, TooMany.C, TooMany.M2), EnumUtils.processBitVectors(TooMany.class, 9L, 5L));
        assertEquals(EnumSet.of(TooMany.B, TooMany.C, TooMany.M2), EnumUtils.processBitVectors(TooMany.class, 9L, 6L));
        assertEquals(EnumSet.of(TooMany.A, TooMany.B, TooMany.C, TooMany.M2), EnumUtils.processBitVectors(TooMany.class, 9L, 7L));
        assertEquals(EnumSet.of(TooMany.A, TooMany.B, TooMany.C, TooMany.M2), EnumUtils.processBitVectors(TooMany.class, 9L, 7L));
    }

}

enum Traffic {
    RED, AMBER, GREEN
}

enum Enum64 {
    A00, A01, A02, A03, A04, A05, A06, A07, A08, A09, A10, A11, A12, A13, A14, A15,
    A16, A17, A18, A19, A20, A21, A22, A23, A24, A25, A26, A27, A28, A29, A30, A31,
    A32, A33, A34, A35, A36, A37, A38, A39, A40, A41, A42, A43, A44, A45, A46, A47,
    A48, A49, A50, A51, A52, A53, A54, A55, A56, A57, A58, A59, A60, A61, A62, A63;
}
enum TooMany {
    A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y,Z,
    A1,B1,C1,D1,E1,F1,G1,H1,I1,J1,K1,L1,M1,N1,O1,P1,Q1,R1,S1,T1,U1,V1,W1,X1,Y1,Z1,
    A2,B2,C2,D2,E2,F2,G2,H2,I2,J2,K2,L2,M2;
}

Other Java examples (source code examples)

Here is a short list of links related to this Java EnumUtilsTest.java source code file:

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