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>

8 files changed, 232 insertions, 3 deletions

diff --git a/BUILD.gn b/BUILD.gn
index 938c01b8f3..8cdc9037c0 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -227,6 +227,7 @@ static_library("test_support") {
   sources = [
     "testing/fx_string_testhelpers.cpp",
     "testing/fx_string_testhelpers.h",
+    "testing/mock_ifx_renderdevicedriver.h",
     "testing/test_support.cpp",
     "testing/test_support.h",
     "testing/utils/path_service.cpp",
@@ -1896,6 +1897,7 @@ test("pdfium_unittests") {
       "xfa/fde/css/cfde_cssstylesheet_unittest.cpp",
       "xfa/fde/css/cfde_cssvaluelistparser_unittest.cpp",
       "xfa/fgas/layout/cfx_rtfbreak_unittest.cpp",
+      "xfa/fwl/cfx_barcode_unittest.cpp",
       "xfa/fxfa/app/cxfa_textparser_unittest.cpp",
       "xfa/fxfa/app/xfa_ffbarcode_unittest.cpp",
       "xfa/fxfa/cxfa_ffapp_unittest.cpp",
diff --git a/fpdfsdk/fpdfview.cpp b/fpdfsdk/fpdfview.cpp
index 6f32473985..4fea392228 100644
--- a/fpdfsdk/fpdfview.cpp
+++ b/fpdfsdk/fpdfview.cpp
@@ -419,7 +419,7 @@ DLLEXPORT void STDCALL FPDF_DestroyLibrary() {
     return;
 
 #ifdef PDF_ENABLE_XFA
-  BC_Library_Destory();
+  BC_Library_Destroy();
   FXJSE_Finalize();
 #endif  // PDF_ENABLE_XFA
 
diff --git a/fxbarcode/BC_Library.cpp b/fxbarcode/BC_Library.cpp
index c52e92a191..5d658ef3ec 100644
--- a/fxbarcode/BC_Library.cpp
+++ b/fxbarcode/BC_Library.cpp
@@ -25,7 +25,8 @@ void BC_Library_Init() {
   CBC_ErrorCorrection::Initialize();
   CBC_PDF417HighLevelEncoder::Initialize();
 }
-void BC_Library_Destory() {
+
+void BC_Library_Destroy() {
   CBC_QRCoderErrorCorrectionLevel::Finalize();
   CBC_QRCoderMode::Finalize();
   CBC_QRCoderVersion::Finalize();
diff --git a/fxbarcode/BC_Library.h b/fxbarcode/BC_Library.h
index 7be4646c68..4e98743d91 100644
--- a/fxbarcode/BC_Library.h
+++ b/fxbarcode/BC_Library.h
@@ -33,6 +33,6 @@ enum BC_TYPE {
 };
 
 void BC_Library_Init();
-void BC_Library_Destory();
+void BC_Library_Destroy();
 
 #endif  // FXBARCODE_BC_LIBRARY_H_
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_
diff --git a/xfa/fwl/cfx_barcode_unittest.cpp b/xfa/fwl/cfx_barcode_unittest.cpp
new file mode 100644
index 0000000000..07d74eef81
--- /dev/null
+++ b/xfa/fwl/cfx_barcode_unittest.cpp
@@ -0,0 +1,123 @@
+// 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.
+
+#include "xfa/fwl/cfx_barcode.h"
+
+#include <memory>
+#include <utility>
+
+#include "core/fxcrt/fx_coordinates.h"
+#include "core/fxcrt/fx_string.h"
+#include "core/fxge/cfx_renderdevice.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "testing/mock_ifx_renderdevicedriver.h"
+#include "testing/test_support.h"
+#include "third_party/base/ptr_util.h"
+
+using testing::_;
+using testing::AtLeast;
+
+class BarcodeTest : public testing::Test {
+ public:
+  void SetUp() override {
+    BC_Library_Init();
+    barcode_ = pdfium::MakeUnique<CFX_Barcode>();
+    device_ = pdfium::MakeUnique<CFX_RenderDevice>();
+    driver_ = pdfium::MakeUnique<MockIFXRenderDeviceDriver>();
+  }
+
+  void TearDown() override {
+    driver_.reset();
+    device_.reset();
+    barcode_.reset();
+    BC_Library_Destroy();
+  }
+
+  CFX_Barcode* barcode() const { return barcode_.get(); }
+  CFX_RenderDevice* device() const { return device_.get(); }
+  MockIFXRenderDeviceDriver* driver() const { return driver_.get(); }
+
+  bool Create(BC_TYPE type) {
+    if (!barcode_->Create(type))
+      return false;
+
+    barcode_->SetModuleHeight(300);
+    barcode_->SetModuleWidth(420);
+    barcode_->SetHeight(298);
+    barcode_->SetWidth(418);
+    return true;
+  }
+
+  void HandoffDriverToDevice() { device_->SetDeviceDriver(std::move(driver_)); }
+  bool RenderDevice() {
+    return barcode_->RenderDevice(device_.get(), &matrix_);
+  }
+
+ protected:
+  CFX_Matrix matrix_;
+  std::unique_ptr<CFX_Barcode> barcode_;
+  std::unique_ptr<CFX_RenderDevice> device_;
+  std::unique_ptr<MockIFXRenderDeviceDriver> driver_;
+};
+
+TEST_F(BarcodeTest, Code39) {
+  EXPECT_TRUE(Create(BC_CODE39));
+  EXPECT_TRUE(barcode()->Encode(L"clams", false));
+
+  EXPECT_CALL(*driver(), GetDeviceCaps(_)).Times(AtLeast(1));
+  EXPECT_CALL(*driver(), GetClipBox(_)).Times(AtLeast(1));
+  EXPECT_CALL(*driver(), DrawPath(_, _, _, _, _, _, _)).Times(AtLeast(1));
+  HandoffDriverToDevice();
+  RenderDevice();
+}
+
+TEST_F(BarcodeTest, CodaBar) {
+  EXPECT_TRUE(Create(BC_CODABAR));
+  EXPECT_TRUE(barcode()->Encode(L"clams", false));
+}
+
+TEST_F(BarcodeTest, Code128) {
+  EXPECT_TRUE(Create(BC_CODE128));
+  EXPECT_TRUE(barcode()->Encode(L"clams", false));
+}
+
+TEST_F(BarcodeTest, Code128_B) {
+  EXPECT_TRUE(Create(BC_CODE128_B));
+  EXPECT_TRUE(barcode()->Encode(L"clams", false));
+}
+
+TEST_F(BarcodeTest, Code128_C) {
+  EXPECT_TRUE(Create(BC_CODE128_C));
+  EXPECT_TRUE(barcode()->Encode(L"clams", false));
+}
+
+TEST_F(BarcodeTest, Ean8) {
+  EXPECT_TRUE(Create(BC_EAN8));
+  EXPECT_TRUE(barcode()->Encode(L"clams", false));
+}
+
+TEST_F(BarcodeTest, UPCA) {
+  EXPECT_TRUE(Create(BC_UPCA));
+  EXPECT_TRUE(barcode()->Encode(L"clams", false));
+}
+
+TEST_F(BarcodeTest, Ean13) {
+  EXPECT_TRUE(Create(BC_EAN13));
+  EXPECT_TRUE(barcode()->Encode(L"clams", false));
+}
+
+TEST_F(BarcodeTest, Pdf417) {
+  EXPECT_TRUE(Create(BC_PDF417));
+  EXPECT_TRUE(barcode()->Encode(L"clams", false));
+}
+
+TEST_F(BarcodeTest, DataMatrix) {
+  EXPECT_TRUE(Create(BC_DATAMATRIX));
+  EXPECT_TRUE(barcode()->Encode(L"clams", false));
+}
+
+TEST_F(BarcodeTest, QrCode) {
+  EXPECT_TRUE(Create(BC_QR_CODE));
+  EXPECT_TRUE(barcode()->Encode(L"clams", false));
+}