1 files changed, 32 insertions, 0 deletions
diff --git a/js/src/tests/non262/generators/yield-error.js b/js/src/tests/non262/generators/yield-error.js
new file mode 100644
index 0000000000..ac915ebcd7
--- /dev/null
+++ b/js/src/tests/non262/generators/yield-error.js
@@ -0,0 +1,32 @@
+var BUGNUMBER = 1384299;
+var summary = "yield outside of generators should provide better error";
+
+print(BUGNUMBER + ": " + summary);
+
+let caught = false;
+try {
+    eval("yield 10");
+} catch(e) {
+    assertEq(e.message, "yield expression is only valid in generators");
+    caught = true;
+}
+assertEq(caught, true);
+
+try {
+    eval("function f() { yield 10; }");
+} catch(e) {
+    assertEq(e.message, "yield expression is only valid in generators");
+    caught = true;
+}
+assertEq(caught, true);
+
+try {
+    eval("async function f() { yield 10; }");
+} catch(e) {
+    assertEq(e.message, "yield expression is only valid in generators");
+    caught = true;
+}
+assertEq(caught, true);
+
+if (typeof reportCompare === "function")
+    reportCompare(true, true);