package com.tcs.isn.fame.cots.binding.javafx.tuto1;

import org.hamcrest.CoreMatchers;

import org.junit.Assert;
import org.junit.Test;

import javafx.beans.property.Property;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;

import javafx.scene.control.TextField;


/**
 */
public class FXPropertyChangeTest {
    @Test
    public void not_wrong_intermediate_update_value() {
        TextField field = new TextField("tes");

        Property<String> property = field.textProperty();

        property.addListener(new ChangeListener<String>() {
                @Override
                public void changed(ObservableValue<? extends String> value, String oldVal, String newVal) {
                    Assert.assertThat(oldVal, CoreMatchers.equalTo("tes"));
                    Assert.assertThat(newVal, CoreMatchers.equalTo("test"));
                }
            });

        field.insertText(field.getText().length(), "t");
    }

    @Test
    public void wrong_intermediate_update_value() {
        TextField field = new TextField("old");

        Property<String> property = field.textProperty();

        property.addListener(new ChangeListener<String>() {
                @Override
                public void changed(ObservableValue<? extends String> value, String oldVal, String newVal) {
                    Assert.assertThat(oldVal, CoreMatchers.equalTo("old"));
                    Assert.assertThat(newVal, CoreMatchers.equalTo("new"));
                }
            });

        field.setText("new");
    }
}