1 files changed, 35 insertions, 0 deletions
diff --git a/subex/main_test.go b/subex/main_test.go
index 673b807..9c1819a 100644
--- a/subex/main_test.go
+++ b/subex/main_test.go
@@ -293,6 +293,41 @@ func TestSubexMain(t *testing.T) {
 				},
 			},
 		},
+		{
+			subex: "#(.(.$_){-0}):",
+			input: []walk.Value {
+				walk.MapValue {
+					{
+						Key: "a",
+						Value: walk.NullValue{},
+					},
+					{
+						Key: "b",
+						Value: walk.NumberValue(4),
+					},
+					{
+						Key: "c",
+						Value: walk.StringValue("hello"),
+					},
+				},
+			},
+			expected: []walk.Value {
+				walk.ArrayValue {
+					{
+						Index: 0,
+						Value: walk.StringValue("a"),
+					},
+					{
+						Index: 0,
+						Value: walk.StringValue("b"),
+					},
+					{
+						Index: 0,
+						Value: walk.StringValue("c"),
+					},
+				},
+			},
+		},
 	}
 
 	for i, test := range tests {