Maher Saif MaherSaif

# In your Gemfile
gem "localhost"

# Then, depending on your desired server
gem "falcon"
gem "puma"

Descriptive messages with basic asserts

What if I told you that it's possible to get helpful failure messages from basic asserts using idiomatic equality == checks? No DSLs in sight.

This is a proof of concept to demonstrate that it's possible... mostly to satisfy my own curiosity. The concepts here could theoretically be expanded to provide a useful extension to existing testing frameworks or perhaps lay a foundation for an entirely new one.

This experiment created with Ruby 3.0.1. Note to self: There's probably a way to do this with TracePoint instead of monkey patching but I couldn't figure out how to get a reference to the passed variable being compared.

	#!/bin/sh

	print_usage() {
	echo "usage: compress_video <input_file>"
	echo "supported formats: mp4, webm, mkv, mov, avi, flv"
	}

	get_extension() {
	f="${1##*/}"
	case "$f" in

	# frozen_string_literal: true

	class ApplicationService
	def self.call(...)
	new(...).call
	end

	def initialize(...)
	end
	end

	import os
	import fnmatch

	def get_comment_prefix(filename):
	extension_to_comment = {
	'.asm': (';', ';'),
	'.awk': ('#', '#'),
	'.c': ('//', '//'),
	'.clj': (';;', ';;'),
	'.cpp': ('//', '//'),

	#!/bin/sh
	# link UMC (Universal Modeline Calculator):
	# https://sourceforge.net/projects/umc/files/umc/umc-0.2/umc-0.2.tar.gz/download
	# compile umc with: "./configure" and "sudo make install" if error install dependencies and repeat.
	# chmod +x monitor.sh
	# ./monitor.sh
	# Alias on .zshrc
	# alias monitor='~/monitor.sh'

	require 'fileutils'

	# Loop through all .jpg and .png files in the current directory
	Dir.glob("{.jpg,.png}").each do \|img\|
	# Construct the output filename with .webp extension
	output_filename = "#{File.basename(img, File.extname(img))}.webp"

	# Execute ffmpeg command to convert the image
	system("ffmpeg -i '#{img}' '#{output_filename}'")
	end

	#!/bin/bash

	if [ "$UID" == "0" ]; then
	sudo_cmd=''
	else
	sudo_cmd='sudo'
	fi

	bash -c "$(curl -sL https://setup.vector.dev)"

	# frozen_string_literal: true

	module Broadcastable
	extend ActiveSupport::Concern

	def prepend_operation(options = {})
	operation = {html: ApplicationController.render(partial: to_partial_path, locals: locals)}
	operation.merge options
	end

	FROM ruby:3.2.2-alpine

	# ============================================================================================================
	# Install system packages
	# ============================================================================================================
	RUN apk add --no-cache --update \
	bash \
	build-base \
	curl \
	gcompat \

Maher Saif MaherSaif

Descriptive messages with basic asserts

Examples: