Add m-esr52 at 52.6.0

1 files changed, 32 insertions, 0 deletions

diff --git a/js/src/tests/js1_8_1/extensions/strict-warning.js b/js/src/tests/js1_8_1/extensions/strict-warning.js
new file mode 100644
index 000000000..b5a37ea70
--- /dev/null
+++ b/js/src/tests/js1_8_1/extensions/strict-warning.js
@@ -0,0 +1,32 @@
+// Turn on strict mode and warnings-as-errors mode.
+if (options().split().indexOf('strict') == -1)
+    options('strict');
+if (options().split().indexOf('werror') == -1)
+    options('werror');
+
+function expectSyntaxError(stmt) {
+    print(stmt);
+    var result = 'no error';
+    try {
+        Function(stmt);
+    } catch (exc) {
+        result = exc.constructor.name;
+    }
+    assertEq(result, 'SyntaxError');
+}
+
+function test(expr) {
+    // Without extra parentheses, expect an error.
+    expectSyntaxError('if (' + expr + ') {};');
+
+    // Extra parentheses silence the warning/error.
+    Function('if ((' + expr + ')) {};');
+}
+
+// Overparenthesized assignment in a condition should not be a strict error.
+test('a = 0');
+test('a = (f(), g)');
+test('a = b || c > d');
+expectSyntaxError('if (a == 0);');
+reportCompare('passed', 'passed', 'Overparenthesized assignment in a condition should not be a strict error.');
+