1 files changed, 95 insertions, 0 deletions
diff --git a/js/src/jsapi-tests/testException.cpp b/js/src/jsapi-tests/testException.cpp
new file mode 100644
index 0000000000..dbf5afbda1
--- /dev/null
+++ b/js/src/jsapi-tests/testException.cpp
@@ -0,0 +1,95 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * vim: set ts=8 sts=2 et sw=2 tw=80:
+ */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "js/CallAndConstruct.h"    // JS_CallFunctionValue
+#include "js/ColumnNumber.h"        // JS::ColumnNumberOneOrigin
+#include "js/PropertyAndElement.h"  // JS_GetProperty
+#include "jsapi-tests/tests.h"
+
+BEGIN_TEST(testException_bug860435) {
+  JS::RootedValue fun(cx);
+
+  EVAL("ReferenceError", &fun);
+  CHECK(fun.isObject());
+
+  JS::RootedValue v(cx);
+  CHECK(
+      JS_CallFunctionValue(cx, global, fun, JS::HandleValueArray::empty(), &v));
+  CHECK(v.isObject());
+  JS::RootedObject obj(cx, &v.toObject());
+
+  CHECK(JS_GetProperty(cx, obj, "stack", &v));
+  CHECK(v.isString());
+  return true;
+}
+END_TEST(testException_bug860435)
+
+BEGIN_TEST(testException_getCause) {
+  JS::RootedValue err(cx);
+  EVAL("new Error('message', { cause: new Error('message 2') })", &err);
+  CHECK(err.isObject());
+
+  JS::RootedString msg(cx, JS::ToString(cx, err));
+  CHECK(msg);
+  // Check that we have the outer error
+  bool match;
+  CHECK(JS_StringEqualsLiteral(cx, msg, "Error: message", &match));
+  CHECK(match);
+
+  JS::Rooted<mozilla::Maybe<JS::Value>> maybeCause(
+      cx, JS::GetExceptionCause(&err.toObject()));
+  CHECK(maybeCause.isSome());
+  JS::RootedValue cause(cx, *maybeCause);
+  CHECK(cause.isObject());
+
+  msg = JS::ToString(cx, cause);
+  CHECK(msg);
+  // Check that we have the inner error
+  CHECK(JS_StringEqualsLiteral(cx, msg, "Error: message 2", &match));
+  CHECK(match);
+
+  maybeCause = JS::GetExceptionCause(&cause.toObject());
+  CHECK(maybeCause.isNothing());
+
+  return true;
+}
+END_TEST(testException_getCause)
+
+BEGIN_TEST(testException_getCausePlainObject) {
+  JS::RootedObject plain(cx, JS_NewPlainObject(cx));
+  CHECK(plain);
+  JS::Rooted<mozilla::Maybe<JS::Value>> maybeCause(
+      cx, JS::GetExceptionCause(plain));
+  CHECK(maybeCause.isNothing());
+  return true;
+}
+END_TEST(testException_getCausePlainObject)
+
+BEGIN_TEST(testException_createErrorWithCause) {
+  JS::RootedString empty(cx, JS_GetEmptyString(cx));
+  JS::Rooted<mozilla::Maybe<JS::Value>> cause(
+      cx, mozilla::Some(JS::Int32Value(-1)));
+  JS::RootedValue err(cx);
+  CHECK(JS::CreateError(cx, JSEXN_ERR, nullptr, empty, 1,
+                        JS::ColumnNumberOneOrigin(1), nullptr, empty, cause,
+                        &err));
+  CHECK(err.isObject());
+  JS::Rooted<mozilla::Maybe<JS::Value>> maybeCause(
+      cx, JS::GetExceptionCause(&err.toObject()));
+  CHECK(maybeCause.isSome());
+  CHECK_SAME(*cause, *maybeCause);
+
+  CHECK(JS::CreateError(cx, JSEXN_ERR, nullptr, empty, 1,
+                        JS::ColumnNumberOneOrigin(1), nullptr, empty,
+                        JS::NothingHandleValue, &err));
+  CHECK(err.isObject());
+  maybeCause = JS::GetExceptionCause(&err.toObject());
+  CHECK(maybeCause.isNothing());
+
+  return true;
+}
+END_TEST(testException_createErrorWithCause)