Add test for circular CPDF_Function::Load().

Bug: chromium:830221
Change-Id: Ia96086a1b930600a4fb9054123c867d1c8b301eb
Reviewed-on: https://pdfium-review.googlesource.com/30671
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>

1 files changed, 16 insertions, 0 deletions

diff --git a/core/fpdfapi/page/cpdf_function_embeddertest.cpp b/core/fpdfapi/page/cpdf_function_embeddertest.cpp
new file mode 100644
index 0000000000..521cc0f814
--- /dev/null
+++ b/core/fpdfapi/page/cpdf_function_embeddertest.cpp
@@ -0,0 +1,16 @@
+// Copyright 2018 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "testing/embedder_test.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+class CPDF_FunctionEmbeddertest : public EmbedderTest {};
+
+TEST_F(CPDF_FunctionEmbeddertest, Crasher_830221) {
+  EXPECT_TRUE(OpenDocument("bug_830221.pdf"));
+  FPDF_PAGE page = LoadPage(0);
+  ASSERT_TRUE(page);
+  RenderLoadedPage(page);
+  UnloadPage(page);
+}