1 files changed, 75 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/basic/bug791465.js b/js/src/jit-test/tests/basic/bug791465.js
new file mode 100644
index 0000000000..13460a11f0
--- /dev/null
+++ b/js/src/jit-test/tests/basic/bug791465.js
@@ -0,0 +1,75 @@
+load(libdir + "asserts.js");
+
+var valid_strict_funs = [
+  // directive ends on next line
+  function () {
+    "use strict"
+    ;
+  },
+  function () {
+    "use strict"
+  },
+  // directive ends on same line
+  function () { "use strict"; },
+  function () { "use strict" },
+];
+
+for (var f of valid_strict_funs) {
+  assertThrowsInstanceOf(function() { f.caller }, TypeError);
+}
+
+
+var binary_ops = [
+  "||", "&&",
+  "|", "^", "&",
+  "==", "!=", "===", "!==",
+  "<", "<=", ">", ">=", "in", "instanceof",
+  "<<", ">>", ">>>",
+  "+", "-",
+  "*", "/", "%",
+];
+
+var invalid_strict_funs = [
+  function () {
+    "use strict"
+    , "not";
+  },
+  function () {
+    "use strict"
+    ? 1 : 0;
+  },
+  function () {
+    "use strict"
+    .length;
+  },
+  function () {
+    "use strict"
+    [0];
+  },
+  function () {
+    "use strict"
+    ();
+  },
+  ...([]),
+  ...(binary_ops.map(op => Function("'use strict'\n " + op + " 'not'"))),
+];
+
+for (var f of invalid_strict_funs) {
+  f.caller;
+}
+
+
+var assignment_ops = [
+   "=", "+=", "-=",
+  "|=", "^=", "&=",
+  "<<=", ">>=", ">>>=",
+  "*=", "/=", "%=",
+];
+
+var invalid_strict_funs_syntax_error = assignment_ops.map(op => ("'use strict'\n " + op + " 'not'"));
+
+// assignment with string literal as LHS is an early error, therefore we
+// can only test for SyntaxError
+for (var f of invalid_strict_funs_syntax_error) {
+  assertThrowsInstanceOf(function() { Function(f) }, SyntaxError);
+}