android-platform-libcore/luni/src/test/java/org/apache/harmony/nio/tests/java/nio/channels/spi/AbstractSelectionKeyTest.java

/* 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.harmony.nio.tests.java.nio.channels.spi;

import dalvik.annotation.TestTargets;
import dalvik.annotation.TestLevel;
import dalvik.annotation.TestTargetNew;
import dalvik.annotation.TestTargetNew;
import dalvik.annotation.TestTargetClass;

import java.nio.channels.SelectableChannel;
import java.nio.channels.SelectionKey;
import java.nio.channels.Selector;
import java.nio.channels.spi.AbstractSelectionKey;

import junit.framework.TestCase;
@TestTargetClass(
    value = AbstractSelectionKey.class,
    untestedMethods = {
        @TestTargetNew(
            level = TestLevel.NOT_NECESSARY,
            notes = "empty protected constructor",
            method = "AbstractSelectionKey",
            args = {}
        )
    }
)
public class AbstractSelectionKeyTest extends TestCase {

    /**
     * @tests AbstractSelectionKey#isValid() without selector
     */
    @TestTargetNew(
        level = TestLevel.COMPLETE,
        notes = "",
        method = "isValid",
        args = {}
    )
    public void test_isValid() throws Exception {
        MockSelectionKey testKey = new MockSelectionKey();
        assertTrue(testKey.isValid());
    }

    /**
     * @tests AbstractSelectionKey#cancel
     */
    @TestTargetNew(
        level = TestLevel.COMPLETE,
        notes = "",
        method = "cancel",
        args = {}
    )
    public void test_cancel() throws Exception {
        MockSelectionKey testKey = new MockSelectionKey();
        try {
            testKey.cancel();
            fail("should throw NullPointerException");
        } catch (NullPointerException e) {
            // expected: no selector available
        }
        assertFalse(testKey.isValid());
    }

    private class MockSelectionKey extends AbstractSelectionKey {

        MockSelectionKey() {
            super();
        }

        public SelectableChannel channel() {
            return null;
        }

        public Selector selector() {
            return null;
        }

        public int interestOps() {
            return 0;
        }

        public SelectionKey interestOps(int arg0) {
            return null;
        }

        public int readyOps() {
            return 0;
        }
    }
}