Preparer test cases

src/test/java/com/tobiasdiez/easybind/MappedBackedListTest.java

@@ -0,0 +1,55 @@
+package com.tobiasdiez.easybind;
+
+import java.util.List;
+
+import javafx.beans.Observable;
+import javafx.beans.property.IntegerProperty;
+import javafx.beans.property.SimpleIntegerProperty;
+import javafx.collections.FXCollections;
+import javafx.collections.ObservableList;
+
+import com.tobiasdiez.easybind.SortedList.SortedList;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+public class MappedBackedListTest {
+
+    @Test
+    public void testUnSortedListUpdatesWithMappedBackedList() {
+        ObservableList<IntegerProperty> list = FXCollections.observableArrayList(number -> new Observable[]{number});
+        ObservableList<Integer> mappedList = EasyBind.mapBacked(list, IntegerProperty::get);
+        SortedList<Integer> sortedList = new SortedList<>(mappedList);
+
+        IntegerProperty number = new SimpleIntegerProperty(1);
+        list.add(number);
+
+        assertEquals(1, sortedList.get(0));
+
+        number.set(2);
+
+        assertEquals(2, sortedList.get(0));
+    }
+
+
+    @Test
+    public void testSortedListUpdatesWithMappedBackedList() {
+        ObservableList<IntegerProperty> list = FXCollections.observableArrayList(number -> new Observable[]{number});
+        ObservableList<Integer> mappedList = EasyBind.mapBacked(list, IntegerProperty::get);
+        SortedList<Integer> sortedList = new SortedList<>(mappedList, Integer::compareTo);
+
+        IntegerProperty num1 = new SimpleIntegerProperty(1);
+        IntegerProperty num2 = new SimpleIntegerProperty(3);
+        IntegerProperty num3 = new SimpleIntegerProperty(2);
+
+        list.addAll(num1, num2, num3);
+
+        // list= [1, 3, 2],  sortedList = [1, 2, 3]
+        assertEquals(List.of(1, 2, 3), sortedList);
+
+        num2.set(4);
+
+        // list = [1, 4, 2], sortedList = [1, 2, 4]
+        assertEquals(List.of(1, 2, 4), sortedList);
+    }
+}