package com.vaadin.ui;

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

import java.util.concurrent.atomic.AtomicBoolean;

import org.junit.Test;

import com.vaadin.server.ServerRpcManager;
import com.vaadin.shared.MouseEventDetails;
import com.vaadin.shared.ui.checkbox.CheckBoxServerRpc;
import com.vaadin.tests.util.MockUI;

public class CheckBoxTest {
    @Test
    public void initiallyFalse() {
        CheckBox cb = new CheckBox();
        assertFalse(cb.getValue());
    }

    @Test
    public void testSetValue() {
        CheckBox cb = new CheckBox();
        cb.setValue(true);
        assertTrue(cb.getValue());
        cb.setValue(false);
        assertFalse(cb.getValue());
    }

    @Test
    public void setValueChangeFromClientIsUserOriginated() {
        UI ui = new MockUI();
        CheckBox cb = new CheckBox();
        ui.setContent(cb);
        AtomicBoolean userOriginated = new AtomicBoolean(false);
        cb.addValueChangeListener(
                event -> userOriginated.set(event.isUserOriginated()));
        ComponentTest.syncToClient(cb);
        ServerRpcManager.getRpcProxy(cb, CheckBoxServerRpc.class)
                .setChecked(true, new MouseEventDetails());
        assertTrue(userOriginated.get());
        userOriginated.set(false);
        ComponentTest.syncToClient(cb);
        ServerRpcManager.getRpcProxy(cb, CheckBoxServerRpc.class)
                .setChecked(false, new MouseEventDetails());
        assertTrue(userOriginated.get());
    }

    @Test
    public void setValueChangeFromServerIsNotUserOriginated() {
        UI ui = new MockUI();
        CheckBox cb = new CheckBox();
        ui.setContent(cb);
        AtomicBoolean userOriginated = new AtomicBoolean(true);
        cb.addValueChangeListener(
                event -> userOriginated.set(event.isUserOriginated()));
        cb.setValue(true);
        assertFalse(userOriginated.get());
        userOriginated.set(true);
        cb.setValue(false);
        assertFalse(userOriginated.get());
    }

    @Test(expected = NullPointerException.class)
    public void setValue_nullValue_throwsNPE() {
        CheckBox cb = new CheckBox();
        cb.setValue(null);
    }

}