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/*
 * Copyright 2000-2016 Vaadin Ltd.
 *
 * 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 com.vaadin.tests.util;

import com.vaadin.server.VaadinRequest;
import com.vaadin.server.VaadinSession;
import com.vaadin.ui.UI;

public class MockUI extends UI {

    public MockUI() {
        this(findOrcreateSession());
    }

    public MockUI(VaadinSession session) {
        setSession(session);
        setCurrent(this);
    }

    @Override
    protected void init(VaadinRequest request) {
        // Do nothing
    }

    private static VaadinSession findOrcreateSession() {
        VaadinSession session = VaadinSession.getCurrent();
        if (session == null) {
            session = new AlwaysLockedVaadinSession(null);
            VaadinSession.setCurrent(session);
        }
        return session;
    }
}