mirror of
https://github.com/RGBCube/serenity
synced 2025-10-31 20:22:45 +00:00
e7eaf3b566
Reverts 98926b487c
that regressed: block-and-inline/small-percentage-margin.html
(thrashing layout while window resizing)
Fixes https://github.com/SerenityOS/serenity/issues/22610
157 lines
3.8 KiB
C++
157 lines
3.8 KiB
C++
/*
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* Copyright (c) 2023, Aliaksandr Kalenik <kalenik.aliaksandr@gmail.com>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibTest/TestCase.h>
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#include <LibWeb/PixelUnits.h>
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namespace Web {
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TEST_CASE(addition1)
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{
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CSSPixels a(10);
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CSSPixels b(20);
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CSSPixels c = a + b;
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EXPECT_EQ(c, CSSPixels(30));
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}
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TEST_CASE(subtraction1)
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{
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CSSPixels a(30);
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CSSPixels b(10);
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CSSPixels c = a - b;
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EXPECT_EQ(c, CSSPixels(20));
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}
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TEST_CASE(division1)
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{
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CSSPixels a(10);
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CSSPixels b(5);
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CSSPixels c = a / b;
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EXPECT_EQ(c, CSSPixels(2));
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a = CSSPixels::from_raw(0x3FFF'FFFF); // int_max / 2
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b = CSSPixels(0.25);
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EXPECT(!a.might_be_saturated());
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EXPECT((a / b).might_be_saturated());
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}
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TEST_CASE(multiplication1)
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{
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CSSPixels a(3);
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CSSPixels b(4);
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CSSPixels c = a * b;
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EXPECT_EQ(c, CSSPixels(12));
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// Temporary overflow
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a = CSSPixels::from_raw(0xFFFF'FFFF >> (CSSPixels::fractional_bits + 1));
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b = 1;
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EXPECT_EQ((a * b), a);
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// Rounding
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a = CSSPixels::from_raw(0b01'000001);
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b = CSSPixels::from_raw(0b01'100000);
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EXPECT_EQ(a * b, CSSPixels(a.to_double() * b.to_double()));
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EXPECT_EQ(a * -b, CSSPixels(a.to_double() * -b.to_double()));
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EXPECT_EQ(
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CSSPixels::from_raw(0b01'0000011) * CSSPixels::from_raw(0b00'010000),
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CSSPixels::from_raw(0b00'0100001));
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EXPECT_EQ(
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CSSPixels::from_raw(0b01'0000111) * CSSPixels::from_raw(0b00'010000),
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CSSPixels::from_raw(0b00'0100010));
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}
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TEST_CASE(addition2)
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{
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CSSPixels a(3);
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a += CSSPixels(2);
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EXPECT_EQ(a, CSSPixels(5));
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}
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TEST_CASE(to_double)
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{
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CSSPixels a(10);
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EXPECT_EQ(a.to_double(), 10);
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}
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TEST_CASE(to_float)
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{
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CSSPixels a(11);
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EXPECT_EQ(a.to_float(), 11);
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}
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TEST_CASE(to_int)
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{
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CSSPixels b(12);
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EXPECT_EQ(b.to_int(), 12);
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}
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TEST_CASE(comparison1)
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{
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EXPECT_EQ(CSSPixels(1) < CSSPixels(2), true);
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}
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TEST_CASE(comparison2)
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{
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EXPECT_EQ(CSSPixels(123) == CSSPixels(123), true);
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}
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TEST_CASE(saturated_addition)
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{
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EXPECT_EQ(CSSPixels(INFINITY), CSSPixels(INFINITY) + 1);
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}
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TEST_CASE(saturated_subtraction)
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{
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auto value = CSSPixels(INFINITY);
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EXPECT_EQ(value - -1, CSSPixels(INFINITY));
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}
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TEST_CASE(multiplication_uses_i64_for_raw_values)
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{
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CSSPixels a(1200);
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CSSPixels b(647);
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CSSPixels c = a * b;
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EXPECT_EQ(c, CSSPixels(776400));
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}
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TEST_CASE(rounding)
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{
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EXPECT_EQ(ceil(CSSPixels(0)), CSSPixels(0));
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EXPECT_EQ(ceil(CSSPixels(0.5)), CSSPixels(1));
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EXPECT_EQ(ceil(CSSPixels(1.3)), CSSPixels(2));
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EXPECT_EQ(ceil(CSSPixels(1.5)), CSSPixels(2));
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EXPECT_EQ(ceil(CSSPixels(1.7)), CSSPixels(2));
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EXPECT_EQ(ceil(CSSPixels(-0.5)), CSSPixels(0));
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EXPECT_EQ(ceil(CSSPixels(-1.3)), CSSPixels(-1));
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EXPECT_EQ(ceil(CSSPixels(-1.5)), CSSPixels(-1));
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EXPECT_EQ(ceil(CSSPixels(-1.7)), CSSPixels(-1));
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EXPECT_EQ(floor(CSSPixels(0)), CSSPixels(0));
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EXPECT_EQ(floor(CSSPixels(0.5)), CSSPixels(0));
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EXPECT_EQ(floor(CSSPixels(1.3)), CSSPixels(1));
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EXPECT_EQ(floor(CSSPixels(1.5)), CSSPixels(1));
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EXPECT_EQ(floor(CSSPixels(1.7)), CSSPixels(1));
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EXPECT_EQ(floor(CSSPixels(-0.5)), CSSPixels(-1));
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EXPECT_EQ(floor(CSSPixels(-1.3)), CSSPixels(-2));
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EXPECT_EQ(floor(CSSPixels(-1.5)), CSSPixels(-2));
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EXPECT_EQ(floor(CSSPixels(-1.7)), CSSPixels(-2));
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EXPECT_EQ(round(CSSPixels(0)), CSSPixels(0));
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EXPECT_EQ(round(CSSPixels(0.5)), CSSPixels(1));
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EXPECT_EQ(round(CSSPixels(1.3)), CSSPixels(1));
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EXPECT_EQ(round(CSSPixels(1.5)), CSSPixels(2));
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EXPECT_EQ(round(CSSPixels(1.7)), CSSPixels(2));
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EXPECT_EQ(round(CSSPixels(-0.5)), CSSPixels(-1));
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EXPECT_EQ(round(CSSPixels(-1.3)), CSSPixels(-1));
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EXPECT_EQ(round(CSSPixels(-1.5)), CSSPixels(-2));
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EXPECT_EQ(round(CSSPixels(-1.7)), CSSPixels(-2));
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}
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}
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