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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
#include "gtest/gtest.h"
#include <cmath>
#include "BasePoint.h"
#include "Units.h"
#include "Point.h"
using mozilla::CSSCoord;
using mozilla::CSSIntCoord;
using mozilla::CSSIntPoint;
using mozilla::CSSPixel;
using mozilla::gfx::CoordTyped;
using mozilla::gfx::FloatType_t;
using mozilla::gfx::IntCoordTyped;
using mozilla::gfx::IntPointTyped;
using mozilla::gfx::PointTyped;
using mozilla::gfx::UnknownUnits;
TEST(Gfx, TestCSSIntPointLength)
{
CSSIntPoint testPnt(1, 1);
float res = testPnt.Length();
float epsilon = 0.001f;
constexpr float sqrtOfTwo = 1.414;
float diff = std::abs(res - sqrtOfTwo);
EXPECT_LT(diff, epsilon);
}
TEST(Gfx, TestPointAddition)
{
PointTyped<CSSPixel> a, b;
a.x = 2;
a.y = 2;
b.x = 5;
b.y = -5;
a += b;
EXPECT_EQ(a.x, 7.f);
EXPECT_EQ(a.y, -3.f);
}
TEST(Gfx, TestPointSubtraction)
{
PointTyped<CSSPixel> a, b;
a.x = 2;
a.y = 2;
b.x = 5;
b.y = -5;
a -= b;
EXPECT_EQ(a.x, -3.f);
EXPECT_EQ(a.y, 7.f);
}
TEST(Gfx, TestPointRoundToMultiple)
{
const int32_t roundTo = 2;
IntPointTyped<CSSPixel> p(478, -394);
EXPECT_EQ(p.RoundedToMultiple(roundTo), p);
IntPointTyped<CSSPixel> p2(478, 393);
EXPECT_NE(p2.RoundedToMultiple(roundTo), p2);
}
TEST(Gfx, TestFloatTypeMeta)
{
// TODO: Should int64_t's FloatType be double instead?
static_assert(std::is_same_v<FloatType_t<int64_t>, float>,
"The FloatType of an integer type should be float");
static_assert(std::is_same_v<FloatType_t<int32_t>, float>,
"The FloatType of an integer type should be float");
static_assert(
std::is_same_v<FloatType_t<float>, float>,
"The FloatType of a floating-point type should be the given type");
static_assert(
std::is_same_v<FloatType_t<double>, double>,
"The FloatType of a floating-point type should be the given type");
static_assert(
std::is_same_v<FloatType_t<IntCoordTyped<UnknownUnits, int32_t>>,
CoordTyped<UnknownUnits, float>>,
"The FloatType of an IntCoordTyped<Units, Rep> should be "
"CoordTyped<Units, float>");
static_assert(
std::is_same_v<FloatType_t<CoordTyped<UnknownUnits, long double>>,
CoordTyped<UnknownUnits, long double>>,
"The FloatType of a CoordTyped<Units, Rep> should be "
"CoordTyped<Units, Rep>");
}