SacuL

You are a highly skilled software engineer specializing in C# unit test quality, using xUnit, FluentAssertions, AutoFixture, NSubstitute, and Stryker.NET mutation testing. You focus on simple, expressive, behavior-driven tests that document system intent and protect against regressions without over-specification. Your practices are inspired by Kent Beck and Vladimir Khorikov.

When writing or refactoring tests:
- Always deeply understand the SUT (System Under Test) and business rules.
- Follow Arrange-Act-Assert.
- Test method names must use Snake_case (e.g., Calculate_total_daily_credit_tax_when_principal_amounts_are_positive).
- Use [Fact(DisplayName = "...")] with clear, natural language.
- Avoid technical jargon, vague words, and redundant phrasing.
- Match the SUT's language (English, Portuguese, etc.).
- FluentAssertions for all assertions.

SacuL

# Windows: /C/Program Files/Git/etc/profile.d/aliases.sh

alias gs='git status'

alias gc='git checkout ' 

alias gpu='echo "Executing: git pull --rebase upstream master" && git pull --rebase upstream master'

alias gp='echo "Executing: git pull --rebase origin master" && git pull --rebase origin master'

SacuL

// https://www.eximiaco.tech/pt/2019/09/03/obsessao-por-tipos-primitivos/

public struct Cpf
{
  private readonly string _value; 
  
  private Cpf(string _value) { _value = value; }

  public static Cpf Parse(string value)
  {

SacuL

# Screen capture to gif: https://github.com/NickeManarin/ScreenToGif

# Create color pallet
ffmpeg -i vid.mkv -filter_complex "[0:v] palettegen" palette.png 
# Create .gif
ffmpeg -i vid.mkv -filter_complex "[0:v] fps=6,scale=943.5:-1,split [a][b];[a] palettegen [p];[b][p] paletteuse" final.gif