diff --git a/src/test/java/com/dashjoin/jsonata/NumberTest.java b/src/test/java/com/dashjoin/jsonata/NumberTest.java
new file mode 100644
index 0000000..859f139
--- /dev/null
+++ b/src/test/java/com/dashjoin/jsonata/NumberTest.java
@@ -0,0 +1,28 @@
+package com.dashjoin.jsonata;
+
+import static com.dashjoin.jsonata.Jsonata.jsonata;
+import static java.util.Arrays.asList;
+import static java.util.Map.of;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import org.junit.jupiter.api.Disabled;
+import org.junit.jupiter.api.Test;
+
+public class NumberTest {
+
+  @Disabled
+  @Test
+  public void testDouble() {
+    Jsonata expr1 = jsonata("x");
+    var res = expr1.evaluate(of("x", 1.0));
+    System.out.println(res);
+    assertEquals(1, res);
+  }
+  
+  @Test
+  public void testConst() {
+    Jsonata expr1 = jsonata("1.0");
+    var res = expr1.evaluate(of("key", asList(of("x", "y"), of("a", "b"))));
+    System.out.println(res);
+    assertEquals(1, res);
+  }
+}