com.qrmedia.pattern.dynamicenum.StaticResourceBackedDynamicEnumTest.java Source code

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Here is the source code for com.qrmedia.pattern.dynamicenum.StaticResourceBackedDynamicEnumTest.java

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/*
 * @(#)StaticResourceBackedDynamicEnumTest.java     9 Feb 2009
 * 
 * Copyright  2009 Andrew Phillips.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
package com.qrmedia.pattern.dynamicenum;

import static org.easymock.EasyMock.createMock;
import static org.easymock.EasyMock.expectLastCall;
import static org.easymock.EasyMock.replay;
import static org.easymock.EasyMock.reset;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;

import java.util.Arrays;
import java.util.List;

import org.apache.commons.collections.CollectionUtils;
import org.junit.Before;
import org.junit.Test;

import com.qrmedia.pattern.dynamicenum.StaticResourceBackedDynamicEnum;
import com.qrmedia.pattern.dynamicenum.domain.AgentDescriptor;
import com.qrmedia.pattern.dynamicenum.persistence.DynamicEnumerableRepository;

/**
 * Unit tests for the {@link StaticResourceBackedDynamicEnum}.
 * 
 * @author anphilli
 * @since 5 Feb 2009
 *
 */
@SuppressWarnings("unchecked")
public class StaticResourceBackedDynamicEnumTest {
    private StaticResourceBackedDynamicEnum<Integer, AgentDescriptor> agents;

    private final DynamicEnumerableRepository<AgentDescriptor> agentDescriptorRepository = (DynamicEnumerableRepository<AgentDescriptor>) createMock(
            DynamicEnumerableRepository.class);

    private final AgentDescriptor agent2Descriptor = new AgentDescriptor(7, "James Bond", true);
    private final List<AgentDescriptor> agentDescriptors = Arrays.asList(
            new AgentDescriptor(2, "Bill Fairbanks", false), agent2Descriptor,
            new AgentDescriptor(9, "Peter Smith", false));

    @Before
    public void prepareFixture() {

        // this call will be made while the object is being initialized
        agentDescriptorRepository.loadAll();
        expectLastCall().andReturn(agentDescriptors);
        replay(agentDescriptorRepository);

        agents = new StaticResourceBackedDynamicEnum<Integer, AgentDescriptor>(agentDescriptorRepository);
    }

    @Test(expected = AssertionError.class)
    public void construct_duplicateEnumValues() {

        // run initialization again, returning invalid values 
        reset(agentDescriptorRepository);
        agentDescriptorRepository.loadAll();
        expectLastCall().andReturn(Arrays.asList(new AgentDescriptor(7, "James Bond", true),
                new AgentDescriptor(7, "James Bond", true)));
        replay(agentDescriptorRepository);

        agents = new StaticResourceBackedDynamicEnum<Integer, AgentDescriptor>(agentDescriptorRepository);
    }

    @Test
    public void exists_null() {
        assertFalse(agents.exists(null));
    }

    @Test
    public void exists_nonexistent() {
        assertFalse(agents.exists(8));
    }

    @Test
    public void exists() {
        assertTrue(agents.exists(2));
    }

    @Test(expected = NullPointerException.class)
    public void valueOf_null() {
        agents.valueOf(null);
    }

    @Test(expected = IllegalArgumentException.class)
    public void valueOf_nonexistent() {
        agents.valueOf("non-existent");
    }

    @Test
    public void valueOf() {
        assertEquals(Integer.valueOf(7), agents.valueOf("007"));
    }

    @Test
    public void values() {
        assertEquals(Arrays.asList(Integer.valueOf(2), Integer.valueOf(7), Integer.valueOf(9)), agents.values());
    }

    @Test(expected = NullPointerException.class)
    public void ordinal_null() {
        agents.ordinal(null);
    }

    @Test(expected = IllegalArgumentException.class)
    public void ordinal_nonexistent() {
        agents.ordinal(Integer.valueOf(8));
    }

    @Test
    public void ordinal() {

        // enum starts at 0
        assertEquals(1, agents.ordinal(Integer.valueOf(7)));
    }

    @Test(expected = NullPointerException.class)
    public void compare_fromNull() {
        agents.compare(null, Integer.valueOf(7));
    }

    @Test(expected = NullPointerException.class)
    public void compare_toNull() {
        agents.compare(Integer.valueOf(2), null);
    }

    @Test(expected = ClassCastException.class)
    public void compare_fromNonexistent() {
        agents.compare(Integer.valueOf(1), Integer.valueOf(7));
    }

    @Test(expected = ClassCastException.class)
    public void compare_toNonexistent() {
        agents.compare(Integer.valueOf(2), Integer.valueOf(8));
    }

    @Test
    public void compare_lessThan() {
        assertTrue(agents.compare(Integer.valueOf(2), Integer.valueOf(7)) < 0);
    }

    @Test
    public void compare_equals() {
        assertTrue(agents.compare(Integer.valueOf(7), Integer.valueOf(7)) == 0);
    }

    @Test
    public void compare_greaterThan() {
        assertTrue(agents.compare(Integer.valueOf(9), Integer.valueOf(7)) > 0);
    }

    @Test(expected = NullPointerException.class)
    public void range_fromNull() {
        agents.range(null, Integer.valueOf(7));
    }

    @Test(expected = NullPointerException.class)
    public void range_toNull() {
        agents.range(Integer.valueOf(2), null);
    }

    @Test(expected = IllegalArgumentException.class)
    public void range_fromNonexistent() {
        agents.range(Integer.valueOf(1), Integer.valueOf(7));
    }

    @Test(expected = IllegalArgumentException.class)
    public void range_toNonexistent() {
        agents.range(Integer.valueOf(2), Integer.valueOf(8));
    }

    @Test(expected = IllegalArgumentException.class)
    public void range_invalidEndpoints() {
        agents.range(Integer.valueOf(7), Integer.valueOf(2));
    }

    @Test
    public void range_singleton() {
        assertTrue(CollectionUtils.isEqualCollection(Arrays.asList(Integer.valueOf(2)),
                agents.range(Integer.valueOf(2), Integer.valueOf(2))));
    }

    @Test
    public void range() {
        assertTrue(CollectionUtils.isEqualCollection(Arrays.asList(Integer.valueOf(7), Integer.valueOf(9)),
                agents.range(Integer.valueOf(7), Integer.valueOf(9))));
    }

    @Test(expected = NullPointerException.class)
    public void backingValueOf_null() {
        agents.backingValueOf(null);
    }

    @Test(expected = IllegalArgumentException.class)
    public void backingValueOf_nonexistent() {
        agents.backingValueOf(Integer.valueOf(1));
    }

    @Test
    public void backingValueOf() {
        assertEquals(agent2Descriptor, agents.backingValueOf(Integer.valueOf(7)));
    }

}