Vanara/UnitTests/CSharpRunner/TestHelper.cs

67 lines
2.9 KiB
C#

using Newtonsoft.Json;
using NUnit.Framework;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.InteropServices;
using Vanara.InteropServices;
namespace Vanara.PInvoke.Tests
{
public static class TestHelper
{
public static IList<string> GetNestedStructSizes(this Type type, params string[] filters)
{
var output = new List<string>();
var attr = System.Reflection.TypeAttributes.SequentialLayout | System.Reflection.TypeAttributes.ExplicitLayout;
foreach (var t in typeof(AdvApi32).GetNestedTypes(System.Reflection.BindingFlags.Public | System.Reflection.BindingFlags.NonPublic).
Where(t => t.IsValueType && !t.IsEnum && (t.Attributes & attr) != 0 && ((filters?.Length ?? 0) == 0 || filters.Any(s => t.Name.Contains(s)))))
output.Add($"{t.Name} = {Marshal.SizeOf(t)}");
output.Sort();
return output;
}
public static void RunForEach<TEnum>(Type lib, string name, Func<TEnum, object[]> makeParam, Action<TEnum, object, object[]> action = null, Action<Exception> error = null) where TEnum : Enum =>
RunForEach(lib, name, makeParam, (e, ex) => error?.Invoke(ex), action);
public static void RunForEach<TEnum>(Type lib, string name, Func<TEnum, object[]> makeParam, Action<TEnum, Exception> error = null, Action<TEnum, object, object[]> action = null, CorrespondingAction? filter = null) where TEnum : Enum
{
var mi = lib.GetMethods(System.Reflection.BindingFlags.Public | System.Reflection.BindingFlags.Static).Where(m => m.IsGenericMethod && m.Name == name).First();
if (mi is null) throw new ArgumentException("Unable to find method.");
foreach (var e in Enum.GetValues(typeof(TEnum)).Cast<TEnum>())
{
var type = (filter.HasValue ? CorrespondingTypeAttribute.GetCorrespondingTypes(e, filter.Value) : CorrespondingTypeAttribute.GetCorrespondingTypes(e)).FirstOrDefault();
if (type is null)
{
TestContext.WriteLine($"No corresponding type found for {e}.");
continue;
}
var gmi = mi.MakeGenericMethod(type);
var param = makeParam(e);
try
{
var ret = gmi.Invoke(null, param);
action?.Invoke(e, ret, param);
}
catch (Exception ex)
{
error?.Invoke(e, ex.InnerException);
}
}
}
public static void WriteValues(this object value)
{
var json = JsonConvert.SerializeObject(value, Formatting.Indented, new Newtonsoft.Json.Converters.StringEnumConverter(), new SizeTConverter());
if (value != null) TestContext.WriteLine(value.GetType().Name);
TestContext.WriteLine(json);
}
private class SizeTConverter : JsonConverter<SizeT>
{
public override SizeT ReadJson(JsonReader reader, Type objectType, SizeT existingValue, bool hasExistingValue, JsonSerializer serializer) => reader.Value is ulong ul ? new SizeT(ul) : new SizeT(0);
public override void WriteJson(JsonWriter writer, SizeT value, JsonSerializer serializer) => writer.WriteValue(value.Value);
}
}
}