package org.richfaces.component.behavior;

import static org.easymock.EasyMock.expect;
import static org.junit.Assert.assertEquals;

import javax.faces.FacesException;
import javax.faces.component.UICommand;
import javax.faces.component.UIComponent;
import javax.faces.component.UIOutput;
import javax.faces.component.behavior.ClientBehaviorContext;
import javax.faces.render.RenderKit;

import org.ajax4jsf.component.behavior.AjaxBehavior;
import org.jboss.test.faces.mock.Mock;
import org.jboss.test.faces.mock.MockTestRunner;
import org.jboss.test.faces.mock.Stub;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.richfaces.renderkit.html.ClientValidatorRenderer;
import org.richfaces.renderkit.html.FormClientValidatorRenderer;

/**
 * <p class="changed_added_4_0">
 * This class tests client validator behavior. as it described at https://community.jboss.org/wiki/ClientSideValidation #
 * Server-side rendering algorithm
 * </p>
 *
 * @author asmirnov@exadel.com
 *
 */
@RunWith(MockTestRunner.class)
public class GetScriptTest extends BehaviorTestBase {
    private static final String CLIENT_VALIDATION_FUNCTION = "rf.csv.v";
    @Stub
    protected UIOutput output;
    @Mock
    protected UICommand command;

    /**
     * <p class="changed_added_4_0">
     * Server-side rendering algorithm .1
     * </p>
     */
    @Test(expected = FacesException.class)
    public void testGetScriptForIllegalComponent() {
        getScript(output);
    }

    /**
     * <p class="changed_added_4_0">
     * Delegate getScript call to ClientValidatorRenderer
     * </p>
     *
     * @throws Exception
     */
    @Test
    public void testGetScriptForInput() throws Exception {
        testGetScriptDelegate(ClientValidatorRenderer.RENDERER_TYPE, input);
    }

    /**
     * <p class="changed_added_4_0">
     * Server-side rendering algorithm .3
     * </p>
     *
     * @throws Exception
     */
    @Test
    public void testGetScriptForAction() throws Exception {
        testGetScriptDelegate(FormClientValidatorRenderer.RENDERER_TYPE, command);
    }

    @Test
    public void testGetAjaxScript() throws Exception {
        setupRenderer(AjaxBehavior.BEHAVIOR_ID);
        ClientBehaviorContext clientBehaviorContext = setupBehaviorContext(input);
        controller.replay();
        String script = behavior.getAjaxScript(clientBehaviorContext);
        controller.verify();
        assertEquals(CLIENT_VALIDATION_FUNCTION, script);
    }

    private void testGetScriptDelegate(String rendererType, UIComponent component) {
        setupRenderer(rendererType);
        String script = getScript(component);// ajax-only validator.
        assertEquals(CLIENT_VALIDATION_FUNCTION, script);
    }

    private void setupRenderer(String rendererType) {
        RenderKit renderKit = environment.getRenderKit();
        expect(renderKit.getClientBehaviorRenderer(rendererType)).andReturn(behaviorRenderer);
        expect(behaviorRenderer.getScript(behaviorContext, behavior)).andReturn(CLIENT_VALIDATION_FUNCTION);
    }

    private String getScript(UIComponent component) {
        ClientBehaviorContext clientBehaviorContext = setupBehaviorContext(component);
        controller.replay();
        String script = behavior.getScript(clientBehaviorContext);
        controller.verify();
        return script;
    }
}