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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.ObservableNumberValueAssertions;
import eu.lestard.assertj.javafx.internal.ObservableValueAssertions;
import javafx.beans.Observable;
import javafx.beans.binding.FloatBinding;
import javafx.beans.value.ObservableNumberValue;
import org.assertj.core.api.AbstractAssert;
import org.assertj.core.data.Offset;

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

    protected FloatBindingAssert(FloatBinding actual) {
        super(actual, FloatBindingAssert.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 FloatBindingAssert hasValue(float expectedValue) {
        new ObservableValueAssertions<>(actual).hasValue(expectedValue);

        return this;
    }

    /**
     * Verifies that the actual observable number has a value that is close to the given one by less then the given offset.
     *
     * @param expectedValue the given value to compare the actual observables value to.
     * @param offset the given positive offset.
     * @return  {@code this} assertion object.
     *
     * @throws java.lang.NullPointerException if the given offset is null.
     * @throws java.lang.AssertionError if the actual observables value is not equal to the expected one.
     */
    public FloatBindingAssert hasValue(Double expectedValue, Offset offset){
        new ObservableNumberValueAssertions(actual).hasValue(expectedValue, offset);

        return this;
    }

    /**
     * Verifies that the actual Binding is bound and depends on the given Observable value.
     *
     * @param observable the observable that is expected to be a binding dependency of the actual binding.
     * @return {@code this} assertion instance
     */
    public FloatBindingAssert dependsOn(Observable observable) {
        new BindingAssert<>(actual).dependsOn(observable);
        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 FloatBindingAssert hasSameValue(ObservableNumberValue expectedValue) {
        new ObservableValueAssertions<>(actual).hasSameValue(expectedValue);
        return this;
    }
}