1 files changed, 37 insertions, 0 deletions
diff --git a/src/mongo/gotools/common/bsonutil/numberlong_test.go b/src/mongo/gotools/common/bsonutil/numberlong_test.go
new file mode 100644
index 00000000000..d2706b61847
--- /dev/null
+++ b/src/mongo/gotools/common/bsonutil/numberlong_test.go
@@ -0,0 +1,37 @@
+package bsonutil
+
+import (
+	"github.com/mongodb/mongo-tools/common/json"
+	. "github.com/smartystreets/goconvey/convey"
+	"testing"
+)
+
+func TestNumberLongValue(t *testing.T) {
+
+	Convey("When converting JSON with NumberLong values", t, func() {
+
+		Convey("works for NumberLong constructor", func() {
+			key := "key"
+			jsonMap := map[string]interface{}{
+				key: json.NumberLong(42),
+			}
+
+			err := ConvertJSONDocumentToBSON(jsonMap)
+			So(err, ShouldBeNil)
+			So(jsonMap[key], ShouldEqual, int64(42))
+		})
+
+		Convey(`works for NumberLong document ('{ "$numberLong": "42" }')`, func() {
+			key := "key"
+			jsonMap := map[string]interface{}{
+				key: map[string]interface{}{
+					"$numberLong": "42",
+				},
+			}
+
+			err := ConvertJSONDocumentToBSON(jsonMap)
+			So(err, ShouldBeNil)
+			So(jsonMap[key], ShouldEqual, int64(42))
+		})
+	})
+}