src/graphics/display/lib/api-types-cpp/vsync-ack-cookie-test.cc

// Copyright 2023 The Fuchsia 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 "src/graphics/display/lib/api-types-cpp/vsync-ack-cookie.h"

#include <fidl/fuchsia.hardware.display/cpp/wire.h>

#include <cstdint>

#include <gtest/gtest.h>

namespace display {

namespace {

constexpr VsyncAckCookie kOne(1);
constexpr VsyncAckCookie kAnotherOne(1);
constexpr VsyncAckCookie kTwo(2);

constexpr uint64_t kLargeCookieValue = uint64_t{1} << 63;
constexpr VsyncAckCookie kLargeCookie(kLargeCookieValue);

TEST(VsyncAckCookieTest, EqualityIsReflexive) {
  EXPECT_EQ(kOne, kOne);
  EXPECT_EQ(kAnotherOne, kAnotherOne);
  EXPECT_EQ(kTwo, kTwo);
  EXPECT_EQ(kInvalidVsyncAckCookie, kInvalidVsyncAckCookie);
}

TEST(VsyncAckCookieTest, EqualityIsSymmetric) {
  EXPECT_EQ(kOne, kAnotherOne);
  EXPECT_EQ(kAnotherOne, kOne);
}

TEST(VsyncAckCookieTest, EqualityForDifferentValues) {
  EXPECT_NE(kOne, kTwo);
  EXPECT_NE(kAnotherOne, kTwo);
  EXPECT_NE(kTwo, kOne);
  EXPECT_NE(kTwo, kAnotherOne);

  EXPECT_NE(kOne, kInvalidVsyncAckCookie);
  EXPECT_NE(kTwo, kInvalidVsyncAckCookie);
  EXPECT_NE(kInvalidVsyncAckCookie, kOne);
  EXPECT_NE(kInvalidVsyncAckCookie, kTwo);
}

TEST(VsyncAckCookieTest, ToFidlVsyncAckCookieValue) {
  EXPECT_EQ(1u, ToFidlVsyncAckCookieValue(kOne));
  EXPECT_EQ(2u, ToFidlVsyncAckCookieValue(kTwo));
  EXPECT_EQ(kLargeCookieValue, ToFidlVsyncAckCookieValue(kLargeCookie));
  EXPECT_EQ(fuchsia_hardware_display_types::wire::kInvalidDispId,
            ToFidlVsyncAckCookieValue(kInvalidVsyncAckCookie));
}

TEST(VsyncAckCookieTest, ToVsyncAckCookieWithFidlValue) {
  EXPECT_EQ(kOne, ToVsyncAckCookie(1));
  EXPECT_EQ(kTwo, ToVsyncAckCookie(2));
  EXPECT_EQ(kLargeCookie, ToVsyncAckCookie(kLargeCookieValue));
  EXPECT_EQ(kInvalidVsyncAckCookie,
            ToVsyncAckCookie(fuchsia_hardware_display_types::wire::kInvalidDispId));
}

TEST(VsyncAckCookieTest, FidlVsyncAckCookieValueConversionRoundtrip) {
  EXPECT_EQ(kOne, ToVsyncAckCookie(ToFidlVsyncAckCookieValue(kOne)));
  EXPECT_EQ(kTwo, ToVsyncAckCookie(ToFidlVsyncAckCookieValue(kTwo)));
  EXPECT_EQ(kLargeCookie, ToVsyncAckCookie(ToFidlVsyncAckCookieValue(kLargeCookie)));
  EXPECT_EQ(kInvalidVsyncAckCookie,
            ToVsyncAckCookie(ToFidlVsyncAckCookieValue(kInvalidVsyncAckCookie)));
}

}  // namespace

}  // namespace display