Add m-esr52 at 52.6.0

1 files changed, 31 insertions, 0 deletions

diff --git a/js/src/tests/ecma_6/Function/length-with-destructuring-and-parameter-expression.js b/js/src/tests/ecma_6/Function/length-with-destructuring-and-parameter-expression.js
new file mode 100644
index 000000000..a3f00ac1f
--- /dev/null
+++ b/js/src/tests/ecma_6/Function/length-with-destructuring-and-parameter-expression.js
@@ -0,0 +1,31 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+assertEq(function([a = 0]){}.length, 1);
+assertEq(function({p: a = 0}){}.length, 1);
+assertEq(function({a = 0}){}.length, 1);
+assertEq(function({[0]: a}){}.length, 1);
+
+assertEq(function([a = 0], [b = 0]){}.length, 2);
+assertEq(function({p: a = 0}, [b = 0]){}.length, 2);
+assertEq(function({a = 0}, [b = 0]){}.length, 2);
+assertEq(function({[0]: a}, [b = 0]){}.length, 2);
+
+assertEq(function(x, [a = 0]){}.length, 2);
+assertEq(function(x, {p: a = 0}){}.length, 2);
+assertEq(function(x, {a = 0}){}.length, 2);
+assertEq(function(x, {[0]: a}){}.length, 2);
+
+assertEq(function(x = 0, [a = 0]){}.length, 0);
+assertEq(function(x = 0, {p: a = 0}){}.length, 0);
+assertEq(function(x = 0, {a = 0}){}.length, 0);
+assertEq(function(x = 0, {[0]: a}){}.length, 0);
+
+assertEq(function([a = 0], ...r){}.length, 1);
+assertEq(function({p: a = 0}, ...r){}.length, 1);
+assertEq(function({a = 0}, ...r){}.length, 1);
+assertEq(function({[0]: a}, ...r){}.length, 1);
+
+if (typeof reportCompare === "function")
+    reportCompare(0, 0);