Add failing test for #90

jr-stree/src/test/java/com/fasterxml/jackson/jr/stree/failing/ReadAsBigDecimal90Test.java

@@ -0,0 +1,30 @@
+package com.fasterxml.jackson.jr.stree.failing;
+
+import java.math.BigDecimal;
+
+import com.fasterxml.jackson.core.TreeNode;
+
+import com.fasterxml.jackson.jr.ob.*;
+import com.fasterxml.jackson.jr.stree.*;
+
+public class ReadAsBigDecimal90Test extends JacksonJrTreeTestBase
+{
+    // [jackson-jr#90]
+    public void testReadAsBigDecimal() throws Exception
+    {
+        JSON json = JSON.builder()
+                .treeCodec(new JacksonJrsTreeCodec())
+                .enable(JSON.Feature.USE_BIG_DECIMAL_FOR_FLOATS)
+                .build();
+
+        String input = "[1.1]";
+
+        TreeNode node = json.treeFrom(input);
+        TreeNode elemNode = node.get(0);
+
+        assertTrue(elemNode.isValueNode());
+        assertTrue(elemNode instanceof JrsNumber);
+        assertEquals(BigDecimal.class,
+                ((JrsNumber) elemNode).getValue().getClass());
+    }
+}