From 5f8de423f190bbb79a62f804151bc24824fa32d8 Mon Sep 17 00:00:00 2001
From: "Matt A. Tobin" <mattatobin@localhost.localdomain>
Date: Fri, 2 Feb 2018 04:16:08 -0500
Subject: Add m-esr52 at 52.6.0

---
 js/src/tests/ecma_6/Class/strictExecution.js | 38 ++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 js/src/tests/ecma_6/Class/strictExecution.js

(limited to 'js/src/tests/ecma_6/Class/strictExecution.js')

diff --git a/js/src/tests/ecma_6/Class/strictExecution.js b/js/src/tests/ecma_6/Class/strictExecution.js
new file mode 100644
index 000000000..f459311e5
--- /dev/null
+++ b/js/src/tests/ecma_6/Class/strictExecution.js
@@ -0,0 +1,38 @@
+// Classes are always strict mode. Check computed property names and heritage
+// expressions as well.
+
+class a { constructor() { Object.preventExtensions({}).prop = 0; } }
+assertThrowsInstanceOf(() => new a(), TypeError);
+var aExpr = class { constructor() { Object.preventExtensions().prop = 0; } };
+assertThrowsInstanceOf(() => new aExpr(), TypeError);
+
+function shouldThrowCPN() {
+    class b {
+        [Object.preventExtensions({}).prop = 4]() { }
+        constructor() { }
+    }
+}
+function shouldThrowCPNExpr() {
+    var b = class {
+        [Object.preventExtensions({}).prop = 4]() { }
+        constructor() { }
+    };
+}
+assertThrowsInstanceOf(shouldThrowCPN, TypeError);
+assertThrowsInstanceOf(shouldThrowCPNExpr, TypeError);
+
+function shouldThrowHeritage() {
+    class b extends (Object.preventExtensions({}).prop = 4) {
+        constructor() { }
+    }
+}
+function shouldThrowHeritageExpr() {
+    var b = class extends (Object.preventExtensions({}).prop = 4) {
+        constructor() { }
+    };
+}
+assertThrowsInstanceOf(shouldThrowHeritage, TypeError);
+assertThrowsInstanceOf(shouldThrowHeritageExpr, TypeError);
+
+if (typeof reportCompare === "function")
+    reportCompare(0, 0, "OK");
-- 
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