mirror of
https://github.com/Ryujinx/Opentk.git
synced 2024-12-23 06:15:30 +00:00
41 lines
1.5 KiB
Forth
41 lines
1.5 KiB
Forth
namespace OpenTK.Tests
|
|
|
|
open Xunit
|
|
open FsCheck
|
|
open FsCheck.Xunit
|
|
open System
|
|
open System.Runtime.InteropServices
|
|
open OpenTK
|
|
|
|
module Half =
|
|
[<Fact>]
|
|
let ``Casting Half to Single and back to Half is lossless`` () =
|
|
for bits = int System.Int16.MinValue to int System.Int16.MaxValue do
|
|
let bytes = System.BitConverter.GetBytes(int16 bits)
|
|
let half = Half.FromBytes(bytes, 0)
|
|
let single = float32 half
|
|
let roundtrip = Half single
|
|
|
|
Assert.True((half.IsNaN && roundtrip.IsNaN) || half = roundtrip)
|
|
|
|
[<Fact>]
|
|
let ``Half.ToString and Single.ToString return same string for same value`` () =
|
|
for bits = int System.Int16.MinValue to int System.Int16.MaxValue do
|
|
let bytes = System.BitConverter.GetBytes(int16 bits)
|
|
let half = Half.FromBytes(bytes, 0)
|
|
let single = float32 half
|
|
Assert.Equal(half.ToString(), single.ToString())
|
|
|
|
[<Fact>]
|
|
let ``Half can represent all integers from -2048 to 2048 exactly`` () =
|
|
for i = -2048 to 2048 do
|
|
let single = float32 i
|
|
let half = Half single
|
|
Assert.Equal(single, float32 half)
|
|
|
|
[<Fact>]
|
|
let ``Single NaN and inifnity can be cast to Half NaN and infinity`` () =
|
|
Assert.True((Half System.Single.NaN).IsNaN)
|
|
Assert.True((Half System.Single.PositiveInfinity).IsPositiveInfinity)
|
|
Assert.True((Half System.Single.NegativeInfinity).IsNegativeInfinity)
|