Paytrail for WooCommerce 2.0.2 - Activating the Test Mode checkmark does not redirect customers to test merchant Paytrail at checkout

[agendad]

Describe the bug

Paytrail for WooCommerce 2.0.2 - Activating the Test Mode checkmark does not redirect customers to test merchant Paytrail at checkout.

Steps to Reproduce

1. Open Paytrail for WooCommerce gateway settings page in admin panel
2. Empty the Merchant ID and Merchant Secret fields
3. Turn on Test Mode checkmark
4. Save settings
5. Add product to cart
6. Proceed to checkout
7. Choose Paytrail as payment method
8. Confirm Order
9. Checkout displays error "HMAC signature is invalid." and does not proceed to Paytrail to select payment method

Expected behaviour

1. Open Paytrail for WooCommerce gateway settings page in admin panel
2. Empty the Merchant ID and Merchant Secret fields
3. Turn on Test Mode checkmark
4. Save settings
5. Add product to cart
6. Proceed to checkout
7. Choose Paytrail as payment method
8. Confirm Order
9. Redirected to Paytrail Test Merchant payment method selection

Actual behaviour

1. Open Paytrail for WooCommerce gateway settings page in admin panel
2. Empty the Merchant ID and Merchant Secret fields
3. Turn on Test Mode checkmark
4. Save settings
5. Add product to cart
6. Proceed to checkout
7. Choose Paytrail as payment method
8. Confirm Order
9. Checkout displays error "HMAC signature is invalid." and does not proceed to Paytrail to select payment method

2024-04-23T13:42:03+00:00 Debug Paytrail: process_payment
2024-04-23T13:42:03+00:00 Debug Paytrail: init PaymentRequest
2024-04-23T13:42:03+00:00 Debug Paytrail: process_payment, order update_meta_data
2024-04-23T13:42:03+00:00 Debug Paytrail: create_normal_payment
2024-04-23T13:42:03+00:00 Info Paytrail\SDK\Request\PaymentRequest: {"stamp":"1-209781-1713879723","reference":"209781","amount":2418,"currency":"EUR","language":"EN","items":[{"unitPrice":2418,"units":1,"vatPercentage":24,"productCode":"1001","description":"Online Course - \u00fchekordne tellimus","stamp":"269833"}],"customer":{"email":"developer@staging.shop.com","firstName":"Dasdasw","lastName":"Asd","phone":"012345679","companyName":"Test"},"invoicingAddress":{"streetAddress":"Test 123","postalCode":"0000000","city":"Tallinn","county":"","country":"ET"},"redirectUrls":{"success":"https:\/\/staging.shop.com\/et\/checkout\/order-received\/209781\/?key=wc_order_XDi1Qr5OLatUQ","cancel":"https:\/\/staging.shop.com\/et\/checkout\/order-pay\/209781\/?pay_for_order=true&key=wc_order_XDi1Qr5OLatUQ"},"callbackUrls":{"success":"https:\/\/staging.shop.com\/paytrail\/callback\/index","cancel":"https:\/\/staging.shop.com\/paytrail\/callback\/index"},"callbackDelay":3}
2024-04-23T13:42:04+00:00 Error HMAC signature is invalid.#0 /data/wordpress/htdocs/wp-content/plugins/paytrail-for-woocommerce/vendor/paytrail/paytrail-php-sdk/src/Client.php(824): Paytrail\SDK\Util\Signature::validateHmac(Array, '{"status":"erro...', '', '')
#1 /data/wordpress/htdocs/wp-content/plugins/paytrail-for-woocommerce/vendor/paytrail/paytrail-php-sdk/src/PaytrailClient.php(99): Paytrail\SDK\Client->validateHmac(Array, '{"status":"erro...', '')
#2 /data/wordpress/htdocs/wp-content/plugins/paytrail-for-woocommerce/vendor/paytrail/paytrail-php-sdk/src/Client.php(206): Paytrail\SDK\PaytrailClient->post('/payments', Object(Paytrail\SDK\Request\PaymentRequest), Object(Closure))
#3 /data/wordpress/htdocs/wp-content/plugins/paytrail-for-woocommerce/src/Gateway.php(1170): Paytrail\SDK\Client->createPayment(Object(Paytrail\SDK\Request\PaymentRequest))
#4 /data/wordpress/htdocs/wp-content/plugins/paytrail-for-woocommerce/src/Gateway.php(1128): Paytrail\WooCommercePaymentGateway\Gateway->create_normal_payment(Object(Paytrail\SDK\Request\PaymentRequest), Object(Automattic\WooCommerce\Admin\Overrides\Order), 'paytrail')
#5 /data/wordpress/htdocs/wp-content/plugins/woocommerce/includes/class-wc-checkout.php(1062): Paytrail\WooCommercePaymentGateway\Gateway->process_payment(209781)
#6 /data/wordpress/htdocs/wp-content/plugins/woocommerce/includes/class-wc-checkout.php(1291): WC_Checkout->process_order_payment(209781, 'paytrail')
#7 /data/wordpress/htdocs/wp-content/plugins/woocommerce/includes/class-wc-ajax.php(520): WC_Checkout->process_checkout()
#8 /data/wordpress/htdocs/wordpress/wp-includes/class-wp-hook.php(324): WC_AJAX::checkout('')
#9 /data/wordpress/htdocs/wordpress/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters('', Array)
#10 /data/wordpress/htdocs/wordpress/wp-includes/plugin.php(517): WP_Hook->do_action(Array)
#11 /data/wordpress/htdocs/wp-content/plugins/woocommerce/includes/class-wc-ajax.php(96): do_action('wc_ajax_checkou...')
#12 /data/wordpress/htdocs/wordpress/wp-includes/class-wp-hook.php(324): WC_AJAX::do_wc_ajax('')
#13 /data/wordpress/htdocs/wordpress/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters(false, Array)
#14 /data/wordpress/htdocs/wordpress/wp-includes/plugin.php(517): WP_Hook->do_action(Array)
#15 /data/wordpress/htdocs/wordpress/wp-includes/template-loader.php(13): do_action('template_redire...')
#16 /data/wordpress/htdocs/wordpress/wp-blog-header.php(19): require_once('/data/wordpress...')
#17 /data/wordpress/htdocs/index.php(4): require('/data/wordpress...')
#18 {main}
2024-04-23T13:42:04+00:00 Error FAILURE: Response is NULL or empty

Workaround

1. Open Paytrail for WooCommerce gateway settings page in admin panel
2. Set 375917 as the Merchant ID
3. Set SAIPPUAKAUPPIAS as the Merchant Secret
4. Make sure the Test Mode is turned off
5. Save settings
6. Add product to cart
7. Proceed to checkout
8. Choose Paytrail as payment method
9. Confirm Order
10. Redirected to Paytrail Test Merchant payment method selection

Additional context

WooCommerce: 8.8.2
Paytrail for WooCommerce: 2.0.2
Polylang for WooCommerce: 1.9.4

[loueranta-paytrail]

This was fixed on 2.0.3 that was released today