co.paralleluniverse.fibers.okhttp.test.utils.original.http.FakeDns.java Source code

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Here is the source code for co.paralleluniverse.fibers.okhttp.test.utils.original.http.FakeDns.java

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/*
 * Copyright (C) 2012 Square, Inc.
 *
 * Licensed 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 co.paralleluniverse.fibers.okhttp.test.utils.original.http;

import com.squareup.okhttp.Dns;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;

import static org.junit.Assert.assertEquals;

public final class FakeDns implements Dns {
    private List<String> requestedHosts = new ArrayList<>();
    private List<InetAddress> addresses = Collections.emptyList();

    /** Sets the addresses to be returned by this fake DNS service. */
    public FakeDns addresses(List<InetAddress> addresses) {
        this.addresses = new ArrayList<>(addresses);
        return this;
    }

    /** Sets the service to throw when a hostname is requested. */
    public FakeDns unknownHost() {
        this.addresses = Collections.emptyList();
        return this;
    }

    public InetAddress address(int index) {
        return addresses.get(index);
    }

    @Override
    public List<InetAddress> lookup(String hostname) throws UnknownHostException {
        requestedHosts.add(hostname);
        if (addresses.isEmpty())
            throw new UnknownHostException();
        return addresses;
    }

    public void assertRequests(String... expectedHosts) {
        assertEquals(Arrays.asList(expectedHosts), requestedHosts);
        requestedHosts.clear();
    }
}