BaseSuggestBoxAssert.java

package com.googlecode.gwt.test.assertions;

import com.google.gwt.user.client.ui.SuggestBox;

import static org.assertj.core.util.Objects.areEqual;

/**
 * Base class for {@link SuggestBox} assertions.
 *
 * @param <S> used to simulate "self types." For more information please read "<a href=
 *            "http://passion.forco.de/content/emulating-self-types-using-java-generics-simplify-fluent-api-implementation"
 *            target="_blank">Emulating 'self types' using Java Generics to simplify fluent API
 *            implementation</a>."
 * @param <A> the type of the "actual" value.
 * @author Gael Lazzari
 */
public class BaseSuggestBoxAssert<S extends BaseSuggestBoxAssert<S, A>, A extends SuggestBox>
        extends BaseWidgetAssert<S, A> {

    /**
     * Creates a new <code>{@link BaseSuggestBoxAssert}</code>.
     *
     * @param actual   the actual value to verify.
     * @param selfType the "self type."
     */
    protected BaseSuggestBoxAssert(A actual, Class<S> selfType) {
        super(actual, selfType);
    }

    /**
     * Verifies that the actual {@link SuggestBox} is currently enabled.
     *
     * @return this assertion object.
     * @throws AssertionError if the actual {@link SuggestBox} is not enabled.
     * @see SuggestBox#getValueBox()
     */
    public S isEnabled() {
        if (!actual.getValueBox().isEnabled())
            failWithMessage("should be enabled");

        return myself;
    }

    /**
     * Verifies that the actual {@link SuggestBox} is not currently enabled.
     *
     * @return this assertion object.
     * @throws AssertionError if the actual {@link SuggestBox} is enabled.
     * @see SuggestBox#getValueBox()
     */
    public S isNotEnabled() {
        if (actual.getValueBox().isEnabled())
            failWithMessage("should not be enabled");

        return myself;
    }

    /**
     * Verifies that the actual {@link SuggestBox} limit is equal to the given one.
     *
     * @param expected the given limit to compare the actual limit to.
     * @return this assertion object.
     * @throws AssertionError if the actual limit is not equal to the given one.
     * @see SuggestBox#getLimit()
     */
    public S limitEquals(int expected) {
        int limit = actual.getLimit();
        if (areEqual(limit, expected))
            return myself;
        throw propertyComparisonFailed("limit", limit, expected);
    }

    /**
     * Verifies that the actual {@link SuggestBox} value is equal to the given one.
     *
     * @param expected the given value to compare the actual value to.
     * @return this assertion object.
     * @throws AssertionError if the actual value is not equal to the given one.
     * @see SuggestBox#getValue()
     */
    public S valueEquals(String expected) {
        String value = actual.getValue();
        if (areEqual(value, expected))
            return myself;
        throw propertyComparisonFailed("value", value, expected);
    }

}