chromium/ui/display/util/edid_parser_unittest.cc

// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifdef UNSAFE_BUFFERS_BUILD
// TODO(crbug.com/351564777): Remove this and convert code to safer constructs.
#pragma allow_unsafe_buffers
#endif

#include "ui/display/util/edid_parser.h"

#include <stdint.h>

#include <memory>

#include "base/containers/flat_set.h"
#include "base/hash/md5.h"
#include "base/numerics/ranges.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/skia/include/core/SkColorSpace.h"
#include "ui/display/types/display_constants.h"
#include "ui/gfx/geometry/size.h"

AssertionFailure;
AssertionSuccess;
TestWithParam;
ValuesIn;

namespace display {

namespace {

// EDID with non-ascii char in display name.
constexpr unsigned char kBadDisplayName[] = …;
constexpr size_t kBadDisplayNameLength = …;

// Sample EDID data extracted from real devices.
constexpr unsigned char kNormalDisplay[] = …;
constexpr size_t kNormalDisplayLength = …;

// Max image display is an optional field and is omitted in this display by
// setting bytes 21-22 to 0x00.
constexpr unsigned char kNoMaxImageSizeDisplay[] = …;
constexpr size_t kNoMaxImageSizeDisplayLength = …;

// Serial number is in bytes 12-15 of Block 0. Serial number descriptor
// (tag: 0xff) is omitted and replaced by a dummy descriptor (tag: 0x10).
constexpr unsigned char kBlockZeroSerialNumberOnlyDisplay[] = …;
constexpr size_t kBlockZeroSerialNumberOnlyDisplayLength = …;

// Serial number is unavailable. Omitted from bytes 12-15 of block zero and SN
// descriptor (tag: 0xff).
constexpr unsigned char kNoSerialNumberDisplay[] = …;
constexpr size_t kNoSerialNumberDisplayLength = …;

// Week of manufacture is optional and is omitted in this display
// (0x00 at byte 16).
constexpr unsigned char kNoWeekOfManufactureDisplay[] = …;
constexpr size_t kNoWeekOfManufactureDisplayLength = …;

// Week of manufacture can be used to signal that year of manufacture is the
// model year by setting byte 16 to 0xff.
constexpr unsigned char kModelYearDisplay[] = …;
constexpr size_t kModelYearDisplayLength = …;

constexpr unsigned char kInternalDisplay[] = …;
constexpr size_t kInternalDisplayLength = …;

constexpr unsigned char kOverscanDisplay[] = …;
constexpr size_t kOverscanDisplayLength = …;

// The EDID info misdetecting overscan once. see crbug.com/226318
constexpr unsigned char kMisdetectedDisplay[] = …;
constexpr size_t kMisdetectedDisplayLength = …;

constexpr unsigned char kLP2565A[] = …;
constexpr size_t kLP2565ALength = …;

constexpr unsigned char kLP2565B[] = …;
constexpr size_t kLP2565BLength = …;

// HP z32x monitor.
constexpr unsigned char kHPz32x[] = …;
constexpr size_t kHPz32xLength = …;

// Chromebook Samus internal display.
constexpr unsigned char kSamus[] = …;
constexpr size_t kSamusLength = …;

// Chromebook Eve internal display.
constexpr unsigned char kEve[] = …;
constexpr size_t kEveLength = …;

// A Samsung monitor that supports HDR metadata.
constexpr unsigned char kHDRMetadata[] = …;
constexpr size_t kHDRMetadataLength = …;

// EDID for Dell UP3218K, a 2x1 8K tiled display.
constexpr unsigned char kTiledDisplay[] = …;
constexpr size_t kTiledDisplayLength = …;

const std::string kNoSerialNumber = …;
const gfx::Size kNoMaxImageSize = …;
constexpr uint8_t kNoWeekOfManufactureTag = …;
constexpr uint8_t kModelYearTag = …;
// 16843009 == 0x01010101
const std::string kGenericBlockZeroHashedSerialNumber = …;
const std::string kNormalDisplayHashedDescriptorBlockSerialNumber = …;

// Primaries coordinates ({RX, RY, GX, GY, BX, BY, WX, WY}) calculated by hand
// and rounded to 4 decimal places.
constexpr SkColorSpacePrimaries kNormalDisplayPrimaries = …;
constexpr SkColorSpacePrimaries kInternalDisplayPrimaries = …;
constexpr SkColorSpacePrimaries kOverscanDisplayPrimaries = …;
constexpr SkColorSpacePrimaries kMisdetectedDisplayPrimaries = …;
constexpr SkColorSpacePrimaries kLP2565APrimaries = …;
constexpr SkColorSpacePrimaries kLP2565BPrimaries = …;
constexpr SkColorSpacePrimaries kHPz32xPrimaries = …;
constexpr SkColorSpacePrimaries kSamusPrimaries = …;
constexpr SkColorSpacePrimaries kEvePrimaries = …;
constexpr SkColorSpacePrimaries kHDRPrimaries = …;
constexpr SkColorSpacePrimaries kDellTiledPrimaries = …;

// Chromaticity primaries in EDID are specified with 10 bits precision.
constexpr static float kPrimariesPrecision = …;

::testing::AssertionResult SkColorSpacePrimariesEquals(
    const char* lhs_expr,
    const char* rhs_expr,
    const SkColorSpacePrimaries& lhs,
    const SkColorSpacePrimaries& rhs) { … }

}  // namespace

struct TestParams { … } kTestCases[] = …;

class EDIDParserTest : public TestWithParam<TestParams> { … };

TEST_P(EDIDParserTest, ParseEdids) { … }

INSTANTIATE_TEST_SUITE_P(…);

}  // namespace display