#! /usr/bin/env ruby
#
# ACSL Tester
# version 0.1.1
# by Sam Craig
#
# Given a file in the current directory `test.config`,
# this program will run the first line with the next few
# lines as inputs.  It will then compare those outputs to
# the final few lines, to show you if tests succeeded.
#
# Requires the additional gem "colorize" to be installed.

require "colorize"
require "open3"

config_path = File.join(Dir.pwd, "test.config")

unless File.exist?(config_path)
	abort "No config file found!"
end

# Get all of the components out of the configuration file.
command = nil
inputs = []
expected = []
adding_to_inputs = true
File.readlines(config_path).each do |line|
	line.chomp!

	# Check for our input and expected separator.
	if line == ""
		adding_to_inputs = false
		next
	end

	# Add the line to the necessary location.
	if command
		if adding_to_inputs
			inputs << line
		else
			expected << line
		end
	else
		command = line
	end
end

# Run the program and get outputs.
output, status = Open3.capture2(command, stdin_data: inputs.join("\n"))
unless status.success?
	abort "Program did not return exit code 0!"
end

# Show if tests succeeded.
outputs = output.split("\n")
expected.each_with_index do |value, index|
	if value == outputs[index]
		puts value.green
	else
		puts "#{outputs[index].red} expected #{value}"
	end
end