Skip to content

Instantly share code, notes, and snippets.

View Keboo's full-sized avatar

Kevin B Keboo

View GitHub Profile
@Keboo
Keboo / Explanation.md
Last active January 31, 2019 06:55
Property brain teaser

If you look up the docs for how assignment works you will see the explanation that a = b = c is evaluated like a = (b = c). The key is this line from the docs: "The result of a simple assignment expression is the value assigned to the left operand." In this case the result of the (b = c) expression is the value in c which is "John". This then assigns "John" into a.

@Keboo
Keboo / Person.cs
Last active March 12, 2019 06:05
AsyncLocal
public class Person
{
public string Name { get; set; }
}
public abstract class BindableBehavior<T> : Behavior<T> where T : BindableObject
{
protected override void OnAttachedTo(T bindable)
{
if (bindable != null)
{
this.InheritsBindingContextFrom(bindable);
}
base.OnAttachedTo(bindable);
}
@Keboo
Keboo / UnitTests
Created May 30, 2019 07:13
Create a delegate instance from its System.Type
using Microsoft.VisualStudio.TestTools.UnitTesting;
using System;
using System.Linq;
using System.Reflection;
using System.Reflection.Emit;
using System.Threading.Tasks;
namespace CreateDelegate
{
[TestClass]
@Keboo
Keboo / Notes.md
Last active May 2, 2024 05:24
Presenting / Streaming notes

Personal notes on presenting and streaming.

Before starting

  • Turn off un-needed software. Especially things with notifications: Slack, Skype, Teams, etc.
  • Turn on Focus Assist
  • When sharing your desktop, consider sharing a secondary screen rather than the primary screen. Many apps will post notifications to the primary screen so this will help cut down on accidently sharing out notifications.
  • Hide desktop icons
  • Consider resolution/DPI. Remember that for streaming, people watching may be on lower resolutions; don't stream above 1080p.
  • Hide task bar. Either set auto hide, or simply crop the shared section of your screen to omit it.
  • Consider if desktop background is appropriate.
@Keboo
Keboo / Program.cs
Created May 5, 2020 04:19
Some GC thoughts on making sure objects are cleaned up.
using System;
using System.Diagnostics;
using System.Runtime.CompilerServices;
using System.Threading;
using System.Threading.Tasks;
namespace GC
{
/*
In dotnet core, finalizer does not appear to be called on shutdown
@Keboo
Keboo / README.md
Last active July 2, 2020 00:02
Brain Teaser: Collection fun

Brain Teaser: Update the above code such that that unit tests pass. Do not update the content of the unit tests (however you are allowed to switch off of xUnit if you like).

@Keboo
Keboo / BrainTeaser.cs
Last active September 20, 2020 04:46
Null constructor brain teaser. Simply replace ??? with any type that will cause the unit test to pass. Code used xUnit.
[Fact]
public static void NullReturnFromConstructor()
{
//Any Nullable<T> will work
Assert.Throws<InvalidOperationException>(() => SudoMakeMeSandwich<???>());
}
private static T SudoMakeMeSandwich<T>() where T : new()
{
return new T() ?? throw new InvalidOperationException();
@Keboo
Keboo / IHttpCall.cs
Last active September 22, 2020 15:59
In memory testing of HttpClient
namespace Example.HttpClient.Tests
{
public interface IHttpCall
{
int InvocationsCount { get; }
}
}
@Keboo
Keboo / ConstructorTests.cs
Last active September 1, 2021 06:39
Automatic testing of constructor parameters
using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using Moq;
using Xunit;
namespace Namespace
{
public interface IConstructorTest