Jose Marin jomarinb

Be Careful with Table Driven Tests and `t.Parallel()`

We Gophers, love table-driven-tests, it makes our unittesting structured, and makes it easy to add different test cases with ease.

Let’s create our table driven test, for convenience, I chose to use t.Log as the test function. Notice that we don't have any assertion in this test, it is not needed to for the demonstration.

func TestTLog(t *testing.T) {
	t.Parallel()

Linux command to hibernate and then reboot into a different OS

In this document I describe my setup about how to add a menu shortcut that will hibernate and reboot the system into a different OS (in my case, Windows), and then restore linux on the next reboot.

For this, I'll be using Arch Linux with systemd-boot as my boot manager, but in practice any bootloader that handles the LoaderEntryOneShot (a.k.a. BootNext) efivar should work.

NOTE It is advisable to not do this with window's fast boot feature active, since alternating the hibernation of two systems can cause shared partitions to get corrupted. However, if additional steps are taken in order to ensure the shared partition are unmounted before reboot, or no partitions are shared between the two OSs, this can be made to work with fastboot enabled which should give quite a boost in Windows' startup time.

Set the LoaderEntryOneShot/BootNext EFI variable

First Steps

Open Spotify
Test play/pause key in case it works already

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

tmux cheat sheet

(C-x means ctrl+x, M-x means alt+x)

Prefix key

The default prefix is C-b. If you (or your muscle memory) prefer C-a, you need to add this to ~/.tmux.conf:

remap prefix to Control + a

	#!/bin/bash

	set -e

	DIR="$HOME/.local/share/applications"
	PATTERN="chrome-*.desktop"

	echo -e "Please backup your $PATTERN files in $DIR first. \nContinue? (y/n)"
	read continue_process
	if [ "$continue_process" != "y" ]; then

	Setup: UEFI, LVM + LUKS encrypted drive
	Bootloader: Grub
	Links:
	- https://wiki.manjaro.org/index.php/Restore_the_GRUB_Bootloader
	-

	Restore GRUB (boot into live env):

	# get the encrypted partition (crypto_LUKS)
	lsblk -f

	# 0 is too far from ` ;)
	set -g base-index 1

	# Automatically set window title
	set-window-option -g automatic-rename on
	set-option -g set-titles on

	#set -g default-terminal screen-256color
	set -g status-keys vi
	set -g history-limit 10000

	##############################################################################
	# History Configuration
	##############################################################################
	HISTSIZE=5000 #How many lines of history to keep in memory
	HISTFILE=~/.zsh_history #Where to save history to disk
	SAVEHIST=5000 #Number of history entries to save to disk
	#HISTDUP=erase #Erase duplicates in the history file
	setopt appendhistory #Append history to the history file (no overwriting)
	setopt sharehistory #Share history across terminals
	setopt incappendhistory #Immediately append to the history file, not just when a term is killed