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AssertJ-JavaFX is a package of assertj assertions for JavaFX

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package eu.lestard.assertj.javafx.api;

import eu.lestard.assertj.javafx.internal.ObservableValueAssertions;
import javafx.beans.property.ReadOnlyObjectProperty;
import javafx.beans.value.ObservableObjectValue;
import org.assertj.core.api.AbstractAssert;

/**
 * Assertion methods for {@link ReadOnlyObjectProperty}s.
 *
 *  To create an instance of this class, invoke
 * {@link eu.lestard.assertj.javafx.api.Assertions#assertThat(ReadOnlyObjectProperty)}.
 * 
 *
 * @author manuel mauky
 */
public class ReadOnlyObjectPropertyAssert extends AbstractAssert, ReadOnlyObjectProperty> {

    protected ReadOnlyObjectPropertyAssert(ReadOnlyObjectProperty actual) {
        super(actual, ReadOnlyObjectPropertyAssert.class);
    }

    /**
     * Verifies that the actual observable has the expected value set.
     *
     * @param expectedValue the value to compare to the actual observables current value.
     * @return {@code this} assertion instance.
     */
    public ReadOnlyObjectPropertyAssert hasValue(T expectedValue) {
        new ObservableValueAssertions<>(actual).hasValue(expectedValue);
        return this;
    }

    /**
     * Verifies that the actual observable has a value of null.
     *
     * @return {@code this} assertion instance.
     */
    public ReadOnlyObjectPropertyAssert hasNullValue() {
        new ObservableValueAssertions<>(actual).hasNullValue();
        return this;
    }


    /**
     * Verifies that the actual observable has NOT a value of null.
     *
     * @return {@code this} assertion instance.
     */
    public ReadOnlyObjectPropertyAssert hasNotNullValue() {
        new ObservableValueAssertions<>(actual).hasNotNullValue();
        return this;
    }


    /**
     * Verifies that the actual observable has the same value as the given observable.
     *
     * @param expectedValue the observable value to compare with the actual observables current value.
     *
     * @return {@code this} assertion instance.
     */
    public ReadOnlyObjectPropertyAssert hasSameValue(ObservableObjectValue expectedValue) {
        new ObservableValueAssertions<>(actual).hasSameValue(expectedValue);
        return this;
    }
}