diff --git a/core/src/test/java/fj/data/DListTest.java b/core/src/test/java/fj/data/DListTest.java
new file mode 100644
index 00000000..6846ca2d
--- /dev/null
+++ b/core/src/test/java/fj/data/DListTest.java
@@ -0,0 +1,31 @@
+package fj.data;
+
+import org.junit.Test;
+
+import static fj.data.DList.*;
+import static org.hamcrest.core.Is.is;
+import static org.junit.Assert.assertThat;
+
+public class DListTest {
+    @Test
+    public void testConsSnoc() {
+        assertThat(nil().snoc(2).cons(1).toJavaList(), is(single(1).snoc(2).toJavaList()));
+    }
+
+    @Test
+    public void testListDList() {
+        DList<Integer> d = listDList(List.range(0, 1000));
+        assertThat(d.toJavaList(), is(List.range(0, 1000).toJavaList()));
+    }
+
+    @Test
+    public void testArrayDList() {
+        DList<Integer> d = arrayDList(Array.range(0, 1000).array(Integer[].class));
+        assertThat(d.toJavaList(), is(Array.range(0, 1000).toJavaList()));
+    }
+    @Test
+    public void testIter() {
+        DList<Integer> d = iteratorDList(List.range(0, 1000).iterator());
+        assertThat(d.toJavaList(), is(List.range(0, 1000).toJavaList()));
+    }
+}