zsh-nvm/tests/loading/Check zsh-nvm installs nvm if it isn't already installed

#!/bin/sh
source ../common.sh

# Check nvm isn't already installed
[[ ! -f "$NVM_DIR/nvm.sh" ]] || die "nvm is already installed $NVM_DIR/nvm.sh"

# Load zsh-nvm
load_zsh_nvm

# Check nvm is now installed
[[ -f "$NVM_DIR/nvm.sh" ]] || die "nvm wasn't installed"