Add barcode test skeleton

Individual tests need some more fleshing out.
Fix spelling of "Destroy" while we're at it.

Bug: pdfium:699

Change-Id: I05f1da8654bfdf92cb264adae16e1b3209587a31
Reviewed-on: https://pdfium-review.googlesource.com/4550
Commit-Queue: Tom Sepez <tsepez@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>

3 files changed, 103 insertions, 0 deletions

diff --git a/testing/libfuzzer/BUILD.gn b/testing/libfuzzer/BUILD.gn
index d9dc0ee58f..e15ac05cbb 100644
--- a/testing/libfuzzer/BUILD.gn
+++ b/testing/libfuzzer/BUILD.gn
@@ -39,6 +39,12 @@ template("pdfium_fuzzer") {
 }
 
 if (pdf_enable_xfa) {
+  pdfium_fuzzer("pdf_cfx_barcode_fuzzer") {
+    sources = [
+      "pdf_cfx_barcode_fuzzer.cc",
+    ]
+  }
+
   pdfium_fuzzer("pdf_cfx_saxreader_fuzzer") {
     sources = [
       "pdf_cfx_saxreader_fuzzer.cc",
diff --git a/testing/libfuzzer/pdf_cfx_barcode_fuzzer.cc b/testing/libfuzzer/pdf_cfx_barcode_fuzzer.cc
new file mode 100644
index 0000000000..24cf0ab516
--- /dev/null
+++ b/testing/libfuzzer/pdf_cfx_barcode_fuzzer.cc
@@ -0,0 +1,38 @@
+// Copyright 2017 The 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 <memory>
+
+#include "core/fxcrt/fx_string.h"
+#include "xfa/fwl/cfx_barcode.h"
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
+  if (size < 2 * sizeof(wchar_t))
+    return 0;
+
+  BC_TYPE type = static_cast<BC_TYPE>(data[0] % (BC_DATAMATRIX + 1));
+
+  // Only used one byte, but align with wchar_t for string below.
+  data += sizeof(wchar_t);
+  size -= sizeof(wchar_t);
+
+  CFX_Barcode barcode;
+  if (!barcode.Create(type))
+    return 0;
+
+  // TODO(tsepez): Setup more options from |data|.
+  barcode.SetModuleHeight(300);
+  barcode.SetModuleWidth(420);
+  barcode.SetHeight(298);
+  barcode.SetWidth(418);
+
+  CFX_WideStringC content(reinterpret_cast<const wchar_t*>(data),
+                          size / sizeof(wchar_t));
+
+  if (!barcode.Encode(content, false))
+    return 0;
+
+  // TODO(tsepez): Output to device.
+  return 0;
+}
diff --git a/testing/mock_ifx_renderdevicedriver.h b/testing/mock_ifx_renderdevicedriver.h
new file mode 100644
index 0000000000..c9061d88b8
--- /dev/null
+++ b/testing/mock_ifx_renderdevicedriver.h
@@ -0,0 +1,59 @@
+// Copyright 2017 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.
+
+#ifndef TESTING_MOCK_IFX_RENDERDEVICEDRIVER_H_
+#define TESTING_MOCK_IFX_RENDERDEVICEDRIVER_H_
+
+#include <memory>
+
+#include "core/fxge/ifx_renderdevicedriver.h"
+#include "testing/gmock/include/gmock/gmock.h"
+
+class MockIFXRenderDeviceDriver : public IFX_RenderDeviceDriver {
+ public:
+  MOCK_CONST_METHOD1(GetDeviceCaps, int(int caps_id));
+  MOCK_METHOD0(SaveState, void());
+  MOCK_METHOD1(RestoreState, void(bool bKeepSaved));
+  MOCK_METHOD3(SetClip_PathFill,
+               bool(const CFX_PathData* pPathData,
+                    const CFX_Matrix* pObject2Device,
+                    int fill_mode));
+  MOCK_METHOD7(DrawPath,
+               bool(const CFX_PathData* pPathData,
+                    const CFX_Matrix* pObject2Device,
+                    const CFX_GraphStateData* pGraphState,
+                    uint32_t fill_color,
+                    uint32_t stroke_color,
+                    int fill_mode,
+                    int blend_type));
+  MOCK_METHOD1(GetClipBox, bool(FX_RECT* pRect));
+  MOCK_METHOD6(SetDIBits,
+               bool(const CFX_RetainPtr<CFX_DIBSource>& pBitmap,
+                    uint32_t color,
+                    const FX_RECT* pSrcRect,
+                    int dest_left,
+                    int dest_top,
+                    int blend_type));
+
+  MOCK_METHOD7(StartDIBits,
+               bool(const CFX_RetainPtr<CFX_DIBSource>& pBitmap,
+                    int bitmap_alpha,
+                    uint32_t color,
+                    const CFX_Matrix* pMatrix,
+                    uint32_t flags,
+                    std::unique_ptr<CFX_ImageRenderer>* handle,
+                    int blend_type));
+  MOCK_METHOD9(StretchDIBits,
+               bool(const CFX_RetainPtr<CFX_DIBSource>& pBitmap,
+                    uint32_t color,
+                    int dest_left,
+                    int dest_top,
+                    int dest_width,
+                    int dest_height,
+                    const FX_RECT* pClipRect,
+                    uint32_t flags,
+                    int blend_type));
+};
+
+#endif  // TESTING_MOCK_IFX_RENDERDEVICEDRIVER_H_