Testing boilerplate for a WooCommerce extension.

bootstrap.php

<?php

/**
 * PHPUnit bootstrap file
 *
 * @package Cli_Tests
 */

$wc = getenv( 'WC_TESTS_DIR' ) ? getenv( 'WC_TESTS_DIR' ) : '/tmp/woocommerce/tests';
$wp = getenv( 'WP_TESTS_DIR' ) ? getenv( 'WP_TESTS_DIR' ) : '/tmp/wordpress-tests-lib';

// Give access to tests_add_filter() function.
require_once $wp . '/includes/functions.php';

/**
 * Manually load the plugin being tested.
 * TODO: Replace 'my-plugin-name' with the name of your plugins entry point.
 */
function _manually_load_plugin() {
	require dirname( dirname( __FILE__ ) ) . '/my-plugin-name.php';
}
tests_add_filter( 'muplugins_loaded', '_manually_load_plugin' );

// Start up the WP testing environment.
require $wc . '/bootstrap.php';

// TODO: The testing framework is now set up, you can 
// load any test classes of your own here.

circle.yml

machine:
  php:
    version: 5.6.22
  environment:
    PATH: $HOME/.composer/vendor/bin:$PATH

dependencies:
  pre:
    - sudo apt-get update; sudo apt-get install subversion

test:
  pre:
    - bash bin/install-wp-tests.sh wordpress_test ubuntu '' 127.0.0.1 latest
    - composer dump-autoload -o
    - |
      composer global require wp-coding-standards/wpcs
      phpcs --config-set installed_paths $HOME/.composer/vendor/wp-coding-standards/wpcs
  override:
    - phpcs --standard=phpcs.ruleset.xml $(find . -name '*.php')
    - phpunit

install-wp-tests.sh

#!/usr/bin/env bash

if [ $# -lt 3 ]; then
	echo "usage: $0 <db-name> <db-user> <db-pass> [db-host] [wp-version] [skip-database-creation]"
	exit 1
fi

DB_NAME=$1
DB_USER=$2
DB_PASS=$3
DB_HOST=${4-localhost}
WP_VERSION=${5-latest}
SKIP_DB_CREATE=${6-false}

WP_TESTS_DIR=${WP_TESTS_DIR-/tmp/wordpress-tests-lib}
WP_CORE_DIR=${WP_CORE_DIR-/tmp/wordpress/}

download() {
    if [ `which curl` ]; then
        curl -s "$1" > "$2";
    elif [ `which wget` ]; then
        wget -nv -O "$2" "$1"
    fi
}

if [[ $WP_VERSION =~ [0-9]+\.[0-9]+(\.[0-9]+)? ]]; then
	WP_TESTS_TAG="tags/$WP_VERSION"
elif [[ $WP_VERSION == 'nightly' || $WP_VERSION == 'trunk' ]]; then
	WP_TESTS_TAG="trunk"
else
	# http serves a single offer, whereas https serves multiple. we only want one
	download http://api.wordpress.org/core/version-check/1.7/ /tmp/wp-latest.json
	grep '[0-9]+\.[0-9]+(\.[0-9]+)?' /tmp/wp-latest.json
	LATEST_VERSION=$(grep -o '"version":"[^"]*' /tmp/wp-latest.json | sed 's/"version":"//')
	if [[ -z "$LATEST_VERSION" ]]; then
		echo "Latest WordPress version could not be found"
		exit 1
	fi
	WP_TESTS_TAG="tags/$LATEST_VERSION"
fi

set -ex

install_wp() {

	if [ -d $WP_CORE_DIR ]; then
		return;
	fi

	mkdir -p $WP_CORE_DIR

	if [[ $WP_VERSION == 'nightly' || $WP_VERSION == 'trunk' ]]; then
		mkdir -p /tmp/wordpress-nightly
		download https://wordpress.org/nightly-builds/wordpress-latest.zip  /tmp/wordpress-nightly/wordpress-nightly.zip
		unzip -q /tmp/wordpress-nightly/wordpress-nightly.zip -d /tmp/wordpress-nightly/
		mv /tmp/wordpress-nightly/wordpress/* $WP_CORE_DIR
	else
		if [ $WP_VERSION == 'latest' ]; then
			local ARCHIVE_NAME='latest'
		else
			local ARCHIVE_NAME="wordpress-$WP_VERSION"
		fi
		download https://wordpress.org/${ARCHIVE_NAME}.tar.gz  /tmp/wordpress.tar.gz
		tar --strip-components=1 -zxmf /tmp/wordpress.tar.gz -C $WP_CORE_DIR
	fi

	download https://raw.github.com/markoheijnen/wp-mysqli/master/db.php $WP_CORE_DIR/wp-content/db.php
}

install_test_suite() {
	# portable in-place argument for both GNU sed and Mac OSX sed
	if [[ $(uname -s) == 'Darwin' ]]; then
		local ioption='-i .bak'
	else
		local ioption='-i'
	fi

	# set up testing suite if it doesn't yet exist
	if [ ! -d $WP_TESTS_DIR ]; then
		# set up testing suite
		mkdir -p $WP_TESTS_DIR
		svn co --quiet https://develop.svn.wordpress.org/${WP_TESTS_TAG}/tests/phpunit/includes/ $WP_TESTS_DIR/includes
		svn co --quiet https://develop.svn.wordpress.org/${WP_TESTS_TAG}/tests/phpunit/data/ $WP_TESTS_DIR/data
	fi

	if [ ! -f wp-tests-config.php ]; then
		download https://develop.svn.wordpress.org/${WP_TESTS_TAG}/wp-tests-config-sample.php "$WP_TESTS_DIR"/wp-tests-config.php
		# remove all forward slashes in the end
		WP_CORE_DIR=$(echo $WP_CORE_DIR | sed "s:/\+$::")
		sed $ioption "s:dirname( __FILE__ ) . '/src/':'$WP_CORE_DIR/':" "$WP_TESTS_DIR"/wp-tests-config.php
		sed $ioption "s/youremptytestdbnamehere/$DB_NAME/" "$WP_TESTS_DIR"/wp-tests-config.php
		sed $ioption "s/yourusernamehere/$DB_USER/" "$WP_TESTS_DIR"/wp-tests-config.php
		sed $ioption "s/yourpasswordhere/$DB_PASS/" "$WP_TESTS_DIR"/wp-tests-config.php
		sed $ioption "s|localhost|${DB_HOST}|" "$WP_TESTS_DIR"/wp-tests-config.php
	fi

}

install_db() {

	if [ ${SKIP_DB_CREATE} = "true" ]; then
		return 0
	fi

	# parse DB_HOST for port or socket references
	local PARTS=(${DB_HOST//\:/ })
	local DB_HOSTNAME=${PARTS[0]};
	local DB_SOCK_OR_PORT=${PARTS[1]};
	local EXTRA=""

	if ! [ -z $DB_HOSTNAME ] ; then
		if [ $(echo $DB_SOCK_OR_PORT | grep -e '^[0-9]\{1,\}$') ]; then
			EXTRA=" --host=$DB_HOSTNAME --port=$DB_SOCK_OR_PORT --protocol=tcp"
		elif ! [ -z $DB_SOCK_OR_PORT ] ; then
			EXTRA=" --socket=$DB_SOCK_OR_PORT"
		elif ! [ -z $DB_HOSTNAME ] ; then
			EXTRA=" --host=$DB_HOSTNAME --protocol=tcp"
		fi
	fi

	# create database
	mysqladmin create $DB_NAME --user="$DB_USER" --password="$DB_PASS"$EXTRA
}

install_wc() {
    if [ ${SKIP_WC_INSTALL} = "true" ]; then
		return 0
	fi

    git clone https://github.com/woocommerce/woocommerce.git /tmp/woocommerce
    cd /tmp/woocommerce
    git fetch --tags
    local LATEST_WC_TAG=$(git describe --tags `git rev-list --tags --max-count=1`)
    git checkout $LATEST_WC_TAG
}

install_wp
install_wc
install_test_suite
install_db