JAVA-1470 Move 10 articles to libraries-4 module

libraries-4/src/test/java/com/baeldung/eclipsecollections/InjectIntoPatternUnitTest.java

@@ -0,0 +1,23 @@
+package com.baeldung.eclipsecollections;
+
+import static org.junit.Assert.assertEquals;
+
+import java.util.List;
+
+import org.eclipse.collections.impl.factory.Lists;
+import org.junit.Test;
+
+public class InjectIntoPatternUnitTest {
+
+    @Test
+    public void whenInjectInto_thenCorrect() {
+        List<Integer> list = Lists.mutable.of(1, 2, 3, 4);
+        int result = 5;
+        for (int i = 0; i < list.size(); i++) {
+            Integer v = list.get(i);
+            result = result + v.intValue();
+        }
+
+        assertEquals(15, result);
+    }
+}