node_modules

1 files changed, 17 insertions, 0 deletions

diff --git a/node_modules/es5-ext/test/optional-chaining.js b/node_modules/es5-ext/test/optional-chaining.js
new file mode 100644
index 000000000..1f7d40563
--- /dev/null
+++ b/node_modules/es5-ext/test/optional-chaining.js
@@ -0,0 +1,17 @@
+"use strict";
+
+module.exports = function (t, a) {
+	var obj = { foo: { bar: "elo", par: null } };
+	a(t(), undefined);
+	a(t(null), null);
+	a(t(obj), obj);
+	a(t(obj, "foo"), obj.foo);
+	a(t(obj, "foo", "bar"), "elo");
+	a(t(obj, "foo", "bar", "slice"), String.prototype.slice);
+	a(t(obj, "foo", "par"), null);
+	a(t(obj, "foo", "par", "marko"), undefined);
+	a(t(obj, "marko"), undefined);
+	a(t(""), "");
+	a(t("", "foo"), undefined);
+	a(t("", "slice"), String.prototype.slice);
+};