Install/uninstall tests.

src/Order.php

@@ -57,6 +57,10 @@ public function get_order() {
 		return $this->order;
 	}
 
+	public function get_id() {
+		return $this->get_order()->get_id();
+	}
+
 	/**
 	 * @return WC_DateTime|null
 	 */
@@ -154,7 +158,7 @@ public function get_shipping_status() {
 	}
 
 	public function supports_third_party_email_transmission() {
-		$supports_email_transmission = function_exists( 'wc_gzd_order_supports_parcel_delivery_reminder' ) ? wc_gzd_order_supports_parcel_delivery_reminder( $this->get_order() ) : 'yes' === $this->get_order()->get_meta( '_parcel_delivery_opted_in' );
+		$supports_email_transmission = 'yes' === $this->get_order()->get_meta( '_parcel_delivery_opted_in' );
 
 		/**
 		 * Filter to adjust whether the email address may be transmitted to third-parties, e.g.

tests/unit-tests/install.php

@@ -0,0 +1,41 @@
+<?php
+
+use Vendidero\Germanized\Shipments\Tests\Helpers\ShipmentHelper;
+use Vendidero\Germanized\Shipments\Tests\Helpers\PackagingHelper;
+
+/**
+ * Class WC_Tests_Install.
+ * @package WooCommerce\Tests\Util
+ */
+class Install extends \Vendidero\Germanized\Shipments\Tests\Framework\UnitTestCase {
+
+	public function update() {
+		update_option( 'woocommerce_gzd_shipments_version', ( (float) \Vendidero\Germanized\Shipments\Package::get_version() - 1 ) );
+		update_option( 'woocommerce_gzd_shipments_db_version', \Vendidero\Germanized\Shipments\Package::get_version() );
+		\Vendidero\Germanized\Shipments\Package::check_version();
+
+		$this->assertTrue( did_action( 'woocommerce_gzd_shipments_updated' ) === 1 );
+	}
+
+	public function test_install() {
+		// clean existing install first
+		if ( ! defined( 'WP_UNINSTALL_PLUGIN' ) ) {
+			define( 'WP_UNINSTALL_PLUGIN', true );
+			define( 'WC_GZD_SHIPMENTS_REMOVE_ALL_DATA', true );
+		}
+
+		include( dirname( dirname( dirname( dirname( __FILE__ ) ) ) ) . '/uninstall.php' );
+
+		\Vendidero\Germanized\Shipments\Install::install();
+
+		$this->assertTrue( get_option( 'woocommerce_gzd_shipments_version' ) === \Vendidero\Germanized\Shipments\Package::get_version() );
+		$this->assertEquals( 'yes', get_option( 'woocommerce_gzd_shipments_enable_auto_packing' ) );
+
+		// Check if Tables are installed
+		global $wpdb;
+
+		// Shipments
+		$table_name = $wpdb->get_var( "SHOW TABLES LIKE '{$wpdb->prefix}woocommerce_gzd_shipments'" );
+		$this->assertEquals( "{$wpdb->prefix}woocommerce_gzd_shipments", $table_name );
+	}
+}

uninstall.php

@@ -0,0 +1,49 @@
+<?php
+if ( ! defined( 'WP_UNINSTALL_PLUGIN' ) ) {
+	exit;
+}
+
+global $wpdb, $wp_version;
+
+if ( defined( 'WC_GZD_SHIPMENTS_REMOVE_ALL_DATA' ) && true === WC_GZD_SHIPMENTS_REMOVE_ALL_DATA ) {
+	// Delete options.
+	$wpdb->query( "DELETE FROM $wpdb->options WHERE option_name LIKE 'woocommerce_gzd_shipments\_%';" );
+
+	$meta_keys = array(
+		'_shipping_length',
+		'_shipping_width',
+		'_shipping_height',
+		'_hs_code',
+		'_manufacture_country',
+		'_customs_description',
+		'_is_non_returnable',
+		'_date_shipped',
+		'_return_request_key',
+		'_pickup_location_customer_number',
+		'_pickup_location_code'
+	);
+
+	// Delete gzd meta data
+	$wpdb->query( "DELETE meta FROM {$wpdb->postmeta} meta WHERE meta.meta_key IN ('" . join( "','", $meta_keys ) . "');" ); // phpcs:ignore WordPress.DB.PreparedSQL.NotPrepared
+
+	// Remove Tables
+	$custom_tables = array(
+		"{$wpdb->prefix}woocommerce_gzd_shipping_providermeta",
+		"{$wpdb->prefix}woocommerce_gzd_shipping_provider",
+		"{$wpdb->prefix}woocommerce_gzd_packagingmeta",
+		"{$wpdb->prefix}woocommerce_gzd_packaging",
+		"{$wpdb->prefix}woocommerce_gzd_shipment_labelmeta",
+		"{$wpdb->prefix}woocommerce_gzd_shipment_labels",
+		"{$wpdb->prefix}woocommerce_gzd_shipmentmeta",
+		"{$wpdb->prefix}woocommerce_gzd_shipments",
+		"{$wpdb->prefix}woocommerce_gzd_shipment_itemmeta",
+		"{$wpdb->prefix}woocommerce_gzd_shipment_items",
+	);
+
+	foreach ( $custom_tables as $table ) {
+		$result = $wpdb->query( 'DROP TABLE IF EXISTS ' . $table ); // phpcs:ignore WordPress.DB.PreparedSQL.NotPrepared
+	}
+
+	// Clear any cached data that has been removed
+	wp_cache_flush();
+}