src/defs.js: Refactor to_jsstring

Now fails on non-utf8 input.
Previously it would convert to equivalent unicode codepoints as bytes, which did not round-trip

1 files changed, 8 insertions, 0 deletions

diff --git a/tests/defs.js b/tests/defs.js
index 07e863b..b00fda0 100644
--- a/tests/defs.js
+++ b/tests/defs.js
@@ -56,3 +56,11 @@ test('to_jsstring', function (t) {
 		t.deepEqual(defs.to_jsstring(v.byte_array), v.literal, v.description);
 	});
 });
+
+test('to_jsstring fails on invalid unicode', function (t) {
+	t.plan(1);
+
+	t.throws(function() {
+		defs.to_jsstring([165]);
+	}, "non-utf8 char");
+});