Add m-esr52 at 52.6.0

1 files changed, 16 insertions, 0 deletions

diff --git a/js/src/jit-test/tests/basic/external-strings.js b/js/src/jit-test/tests/basic/external-strings.js
new file mode 100644
index 000000000..e8d62ac8b
--- /dev/null
+++ b/js/src/jit-test/tests/basic/external-strings.js
@@ -0,0 +1,16 @@
+assertEq(newExternalString(""), "");
+assertEq(newExternalString("abc"), "abc");
+assertEq(newExternalString("abc\0def\u1234"), "abc\0def\u1234");
+
+var o = {foo: 2, "foo\0": 4};
+var ext = newExternalString("foo");
+assertEq(o[ext], 2);
+var ext2 = newExternalString("foo\0");
+assertEq(o[ext2], 4);
+
+eval(newExternalString("assertEq(1, 1)"));
+
+// Make sure ensureFlat does the right thing for external strings.
+ext = newExternalString("abc\0defg\0");
+assertEq(ensureFlatString(ext), "abc\0defg\0");
+assertEq(ensureFlatString(ext), "abc\0defg\0");