1 files changed, 27 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/ctypes/incompatible-cdata.js b/js/src/jit-test/tests/ctypes/incompatible-cdata.js
new file mode 100644
index 0000000000..e0349be673
--- /dev/null
+++ b/js/src/jit-test/tests/ctypes/incompatible-cdata.js
@@ -0,0 +1,27 @@
+load(libdir + 'asserts.js');
+
+function test() {
+  assertTypeErrorMessage(() => { ctypes.int32_t(0).address.call(1); },
+                         "CData.prototype.address called on incompatible object, got the number 1");
+  assertTypeErrorMessage(() => { ctypes.char.array(10)("abc").readString.call(1); },
+                         "CData.prototype.readString called on incompatible object, got the number 1");
+
+  assertTypeErrorMessage(() => { ctypes.char.array(10)("abc").readStringReplaceMalformed.call(1); },
+                         "CData.prototype.readStringReplaceMalformed called on incompatible object, got the number 1");
+
+  if (ctypes.int32_t.prototype.toSource) {
+    assertTypeErrorMessage(() => { ctypes.int32_t(0).toSource.call(1); },
+                           "CData.prototype.toSource called on incompatible object, got the number 1");
+  }
+
+  let p = Object.getPrototypeOf(ctypes.int32_t());
+  let o = {};
+  Object.setPrototypeOf(o, p);
+  assertTypeErrorMessage(() => { o.readString(); },
+                         "CData.prototype.readString called on incompatible object, got <<error converting value to string>>");
+  assertTypeErrorMessage(() => { o.readStringReplaceMalformed(); },
+                         "CData.prototype.readStringReplaceMalformed called on incompatible object, got <<error converting value to string>>");
+}
+
+if (typeof ctypes === "object")
+  test();