diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index e286c8ab..cfec80b7 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -18,6 +18,7 @@ jobs:
           - 8.1
           - 8.2
           - 8.3
+          - 8.4
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -75,6 +76,8 @@ jobs:
             typo3-version: '^12.4'
           - php-version: '8.3'
             typo3-version: '^12.4'
+          - php-version: '8.4'
+            typo3-version: '^12.4'
     steps:
       - uses: actions/checkout@v4
 
@@ -88,10 +91,13 @@ jobs:
         run: |-
           composer require --no-interaction --prefer-dist --no-progress "typo3/cms-core:${{ matrix.typo3-version }}" "typo3/cms-extbase:${{ matrix.typo3-version }}" "typo3/cms-frontend:${{ matrix.typo3-version }}"
 
+      - name: Build codeception tester
+        run: vendor/bin/codecept build
+
       - name: Code Quality (by PHPStan)
         run: vendor/bin/phpstan analyse -c Build/phpstan.neon
 
-  tests-acceptance:
+  test-php:
     runs-on: ubuntu-latest
     needs:
       - coding-guideline
@@ -112,6 +118,9 @@ jobs:
       - name: Run Unit Tests PHP8.3
         run: nix-shell --arg phpVersion \"php83\" --pure --run project-test-unit
 
+      - name: Run Unit Tests PHP8.4
+        run: nix-shell --arg phpVersion \"php84\" --pure --run project-test-unit
+
       - name: Run Functional Tests PHP8.1
         run: nix-shell --arg phpVersion \"php81\" --pure --run project-test-functional
 
@@ -121,6 +130,20 @@ jobs:
       - name: Run Functional Tests PHP8.3
         run: nix-shell --arg phpVersion \"php83\" --pure --run project-test-functional
 
+      - name: Run Functional Tests PHP8.4
+        run: nix-shell --arg phpVersion \"php84\" --pure --run project-test-functional
+
+  test-acceptance:
+    runs-on: ubuntu-latest
+    needs:
+      - test-php
+    steps:
+      - uses: actions/checkout@v3
+
+      - uses: cachix/install-nix-action@v17
+        with:
+          nix_path: nixpkgs=channel:nixos-unstable
+
       - name: Run Acceptance Tests PHP8.1
         run: nix-shell --arg phpVersion \"php81\" --pure --run project-test-acceptance
 
@@ -129,3 +152,6 @@ jobs:
 
       - name: Run Acceptance Tests PHP8.3
         run: nix-shell --arg phpVersion \"php83\" --pure --run project-test-acceptance
+
+      - name: Run Acceptance Tests PHP8.4
+        run: nix-shell --arg phpVersion \"php84\" --pure --run project-test-acceptance
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index acd4c95d..d169a475 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -5,14 +5,7 @@ cache:
     - .php_cs.cache
 
 variables:
-  COMPOSER_CACHE_DIR: ".composer"
-  TYPO3_PATH_WEB: "$CI_PROJECT_DIR/.build/public"
-  MYSQL_DATABASE: "typo3"
-  MYSQL_ROOT_PASSWORD: "joh316"
-  typo3DatabaseName: "typo3"
-  typo3DatabaseHost: "mysql"
-  typo3DatabaseUsername: "root"
-  typo3DatabasePassword: "joh316"
+  TYPO3_VERSION: ^12.4
 
 before_script:
   - apk add git --update
@@ -26,29 +19,10 @@ lint:cgl:
   image: $CI_REGISTRY/containers/phpunit-with-php-8.1:main
   stage: lint
   before_script:
-    - sed -i -e "s#ssh://git@code.extco.de:22722#https://gitlab-ci-token:$CI_JOB_TOKEN@code.extco.de#g" composer.json
-    - composer config platform.php 8.1
     - composer remove typo3/cms-core --no-update
     - composer install --no-progress --no-ansi --no-interaction
   script:
     - vendor/bin/php-cs-fixer fix --config=Build/.php-cs-fixer.dist.php -v --dry-run --using-cache=no --path-mode=intersection ./
-
-lint:typoscriptcgl:
-  image: php:8.1-alpine
-  stage: lint
-  before_script:
-    - apk add --no-cache bash curl git mercurial openssh openssl parallel subversion tini zlib-dev libzip-dev zip icu-dev g++
-    - docker-php-ext-install mysqli && docker-php-ext-install zip && docker-php-ext-configure intl && docker-php-ext-install intl && docker-php-ext-enable intl
-    - wget https://composer.github.io/installer.sig -O - -q | tr -d '\n' > installer.sig
-    - php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');"
-    - php -r "if (hash_file('SHA384', 'composer-setup.php') === trim(file_get_contents('installer.sig'))) { echo 'Installer verified'; } else { echo 'Installer corrupt'; unlink('composer-setup.php'); } echo PHP_EOL;"
-    - php composer-setup.php --no-ansi --install-dir=/usr/bin --filename=composer
-    - php -r "unlink('composer-setup.php'); unlink('installer.sig');"
-    - sed -i -e "s#ssh://git@code.extco.de:22722#https://gitlab-ci-token:$CI_JOB_TOKEN@code.extco.de#g" composer.json
-    - composer config platform.php 8.1
-    - composer remove typo3/cms-core --no-update
-    - composer install --no-progress --no-ansi --no-interaction
-  script:
     - vendor/bin/typoscript-lint -c Build/typoscriptlint.yaml Configuration
 
 lint:yaml:
@@ -81,6 +55,11 @@ lint:php83:
   variables:
     CONTAINER_IMAGE: php:8.3-alpine
 
+lint:php84:
+  <<: *lint_php
+  variables:
+    CONTAINER_IMAGE: php:8.4-alpine
+
 phpstan:analyse:
   image: $CI_REGISTRY/containers/phpunit-with-php-8.1:main
   stage: lint
@@ -89,6 +68,7 @@ phpstan:analyse:
     - composer config platform.php 8.1
     - composer install --no-progress --no-ansi --no-interaction
   script:
+    - vendor/bin/codecept build
     - vendor/bin/phpstan analyse -c Build/phpstan.neon --memory-limit 256M
 
 .test_php: &test_php
@@ -106,26 +86,25 @@ phpstan:analyse:
     - vendor/bin/phpunit -c Build/UnitTests.xml
     - typo3DatabaseDriver=pdo_sqlite vendor/bin/phpunit -c Build/FunctionalTests.xml
 
-# Build in PHP 8.1 and TYPO3 12.4
-test:php81:typo3_12:
+test:php81:
   <<: *test_php
   variables:
     CONTAINER_IMAGE: $CI_REGISTRY/containers/phpunit-with-php-8.1:main
-    TYPO3_VERSION: ^12.4
 
-# Build in PHP 8.2 and TYPO3 12.4
-test:php82:typo3_12:
+test:php82:
   <<: *test_php
   variables:
     CONTAINER_IMAGE: $CI_REGISTRY/containers/phpunit-with-php-8.2:main
-    TYPO3_VERSION: ^12.4
 
-# Build in PHP 8.3 and TYPO3 12.4
-test:php83:typo3_12:
+test:php83:
   <<: *test_php
   variables:
     CONTAINER_IMAGE: $CI_REGISTRY/containers/phpunit-with-php-8.3:main
-    TYPO3_VERSION: ^12.4
+
+test:php84:
+  <<: *test_php
+  variables:
+    CONTAINER_IMAGE: $CI_REGISTRY/containers/phpunit-with-php-8.4:main
 
 .test_codeception: &test_codeception
   stage: test
@@ -151,33 +130,31 @@ test:php83:typo3_12:
     expire_in: 1 day
     when: always
 
-# Build in PHP 8.1 and TYPO3 12.4
-test:codception:php81:typo3_12:
+codeception:php81:
   <<: *test_codeception
   variables:
     CONTAINER_IMAGE: $CI_REGISTRY/containers/codeception-with-php-8.1:main
-    TYPO3_VERSION: ^12.4
-    GECKODRIVER_VERSION: v0.34.0
 
-# Build in PHP 8.2 and TYPO3 12.4
-test:codception:php82:typo3_12:
+codeception:php82:
   <<: *test_codeception
   needs:
-    - test:codception:php81:typo3_12
+    - codeception:php81
   variables:
     CONTAINER_IMAGE: $CI_REGISTRY/containers/codeception-with-php-8.2:main
-    TYPO3_VERSION: ^12.4
-    GECKODRIVER_VERSION: v0.34.0
 
-# Build in PHP 8.3 and TYPO3 12.4
-test:codception:php83:typo3_12:
+codeception:php83:
   <<: *test_codeception
   needs:
-    - test:codception:php82:typo3_12
+    - codeception:php82
   variables:
     CONTAINER_IMAGE: $CI_REGISTRY/containers/codeception-with-php-8.3:main
-    TYPO3_VERSION: ^12.4
-    GECKODRIVER_VERSION: v0.34.0
+
+codeception:php84:
+  <<: *test_codeception
+  needs:
+    - codeception:php83
+  variables:
+    CONTAINER_IMAGE: $CI_REGISTRY/containers/codeception-with-php-8.4:main
 
 documentation:
   stage: documentation
diff --git a/Build/phpstan.neon b/Build/phpstan.neon
index c166ea3c..f9aa6f76 100644
--- a/Build/phpstan.neon
+++ b/Build/phpstan.neon
@@ -7,4 +7,4 @@ parameters:
     - ../ext_emconf.php
     - ../ext_localconf.php
   excludePaths:
-    - ../Tests/Acceptance
+    - ../Tests/Acceptance/Support/_generated
diff --git a/Classes/Controller/ProductController.php b/Classes/Controller/ProductController.php
index 55bf0c89..2b4c372a 100644
--- a/Classes/Controller/ProductController.php
+++ b/Classes/Controller/ProductController.php
@@ -181,7 +181,7 @@ public function listAction(int $currentPage = 1): ResponseInterface
         return $this->htmlResponse();
     }
 
-    public function showAction(Product $product = null): ResponseInterface
+    public function showAction(?Product $product = null): ResponseInterface
     {
         if ((int)$GLOBALS['TSFE']->page['doktype'] === 183) {
             $productUid = (int)$GLOBALS['TSFE']->page['cart_products_product'];
@@ -197,7 +197,7 @@ public function showAction(Product $product = null): ResponseInterface
         return $this->htmlResponse();
     }
 
-    public function showFormAction(Product $product = null): ResponseInterface
+    public function showFormAction(?Product $product = null): ResponseInterface
     {
         if (!$product) {
             $product = $this->getProduct();
diff --git a/Classes/Domain/Repository/CategoryRepository.php b/Classes/Domain/Repository/CategoryRepository.php
index a8ca332e..b4100a95 100644
--- a/Classes/Domain/Repository/CategoryRepository.php
+++ b/Classes/Domain/Repository/CategoryRepository.php
@@ -16,13 +16,13 @@
 
 class CategoryRepository extends Repository
 {
-    public function findAllAsRecursiveTreeArray(Category $selectedCategory = null): array
+    public function findAllAsRecursiveTreeArray(?Category $selectedCategory = null): array
     {
         $categoriesArray = $this->findAllAsArray($selectedCategory);
         return $this->buildSubcategories($categoriesArray, null);
     }
 
-    public function findAllAsArray(Category $selectedCategory = null): array
+    public function findAllAsArray(?Category $selectedCategory = null): array
     {
         $localCategories = $this->findAll();
         $categories = [];
@@ -41,7 +41,7 @@ public function findAllAsArray(Category $selectedCategory = null): array
         return $categories;
     }
 
-    public function findSubcategoriesRecursiveAsArray(Category $parentCategory = null): array
+    public function findSubcategoriesRecursiveAsArray(?Category $parentCategory = null): array
     {
         $categories = [];
         $localCategories = $this->findAllAsArray();
diff --git a/Tests/Acceptance/AddConfigurableProductWithStockHandlingToCartCest.php b/Tests/Acceptance/AddConfigurableProductWithStockHandlingToCartCest.php
index 4e9cb1b1..d2fa9aa3 100644
--- a/Tests/Acceptance/AddConfigurableProductWithStockHandlingToCartCest.php
+++ b/Tests/Acceptance/AddConfigurableProductWithStockHandlingToCartCest.php
@@ -32,10 +32,9 @@ public function testAddDifferentItemsWithinAvailableAmountToCart(Tester $I): voi
 
         $I->see('Item was added to cart.', '#product-6 .form-message .form-success');
         $I->dontSeeElement('#product-6 .form-message .form-error');
-        $I->wait(3);
 
-        $I->dontSeeElement('#product-6 .form-message .form-success');
-        $I->dontSeeElement('#product-6 .form-message .form-error');
+        $I->waitForElementNotVisible('#product-6 .form-message .form-success');
+        $I->waitForElementNotVisible('#product-6 .form-message .form-error');
 
         $I->fillField('tx_cart_cart[quantity]', 2);
         $I->selectOption('tx_cart_cart[beVariants][1]', 'M - green');
@@ -44,10 +43,9 @@ public function testAddDifferentItemsWithinAvailableAmountToCart(Tester $I): voi
 
         $I->see('2 Items were added to cart.', '#product-6 .form-message .form-success');
         $I->dontSeeElement('#product-6 .form-message .form-error');
-        $I->wait(3);
 
-        $I->dontSeeElement('#product-6 .form-message .form-success');
-        $I->dontSeeElement('#product-6 .form-message .form-error');
+        $I->waitForElementNotVisible('#product-6 .form-message .form-success');
+        $I->waitForElementNotVisible('#product-6 .form-message .form-error');
 
         $I->fillField('tx_cart_cart[quantity]', 4);
         $I->selectOption('tx_cart_cart[beVariants][1]', 'XL - red');
@@ -56,10 +54,9 @@ public function testAddDifferentItemsWithinAvailableAmountToCart(Tester $I): voi
 
         $I->see('4 Items were added to cart.', '#product-6 .form-message .form-success');
         $I->dontSeeElement('#product-6 .form-message .form-error');
-        $I->wait(3);
 
-        $I->dontSeeElement('#product-6 .form-message .form-success');
-        $I->dontSeeElement('#product-6 .form-message .form-error');
+        $I->waitForElementNotVisible('#product-6 .form-message .form-success');
+        $I->waitForElementNotVisible('#product-6 .form-message .form-error');
     }
 
     public function testAddMoreItemsThanInStockOfASimpleProductToCart(Tester $I): void
@@ -80,10 +77,8 @@ public function testAddMoreItemsThanInStockOfASimpleProductToCart(Tester $I): vo
         $I->dontSeeElement('#product-6 .form-message .form-success');
         $I->see('Desired number of this item not available.', '#product-6 .form-message .form-error');
 
-        $I->wait(3);
-
-        $I->dontSeeElement('#product-6 .form-message .form-success');
-        $I->dontSeeElement('#product-6 .form-message .form-error');
+        $I->waitForElementNotVisible('#product-6 .form-message .form-success');
+        $I->waitForElementNotVisible('#product-6 .form-message .form-error');
     }
 
     public function testAddOneAndThanMoreItemsThanInStockOfASimpleProductToCart(Tester $I): void
@@ -103,10 +98,9 @@ public function testAddOneAndThanMoreItemsThanInStockOfASimpleProductToCart(Test
 
         $I->see('Item was added to cart.', '#product-6 .form-message .form-success');
         $I->dontSeeElement('#product-6 .form-message .form-error');
-        $I->wait(3);
 
-        $I->dontSeeElement('#product-6 .form-message .form-success');
-        $I->dontSeeElement('#product-6 .form-message .form-error');
+        $I->waitForElementNotVisible('#product-6 .form-message .form-success');
+        $I->waitForElementNotVisible('#product-6 .form-message .form-error');
 
         $I->fillField('tx_cart_cart[quantity]', 5);
         $I->selectOption('tx_cart_cart[beVariants][1]', 'XL - red');
@@ -116,9 +110,7 @@ public function testAddOneAndThanMoreItemsThanInStockOfASimpleProductToCart(Test
         $I->dontSeeElement('#product-6 .form-message .form-success');
         $I->see('Desired number of this item not available.', '#product-6 .form-message .form-error');
 
-        $I->wait(3);
-
-        $I->dontSeeElement('#product-6 .form-message .form-success');
-        $I->dontSeeElement('#product-6 .form-message .form-error');
+        $I->waitForElementNotVisible('#product-6 .form-message .form-success');
+        $I->waitForElementNotVisible('#product-6 .form-message .form-error');
     }
 }
diff --git a/Tests/Acceptance/AddConfigurableProductWithoutStockHandlingToCartCest.php b/Tests/Acceptance/AddConfigurableProductWithoutStockHandlingToCartCest.php
index 9312d955..bb28676b 100644
--- a/Tests/Acceptance/AddConfigurableProductWithoutStockHandlingToCartCest.php
+++ b/Tests/Acceptance/AddConfigurableProductWithoutStockHandlingToCartCest.php
@@ -31,10 +31,9 @@ public function testAddDifferentItemsToCart(Tester $I): void
 
         $I->see('Item was added to cart.', '#product-5 .form-message .form-success');
         $I->dontSeeElement('#product-5 .form-message .form-error');
-        $I->wait(3);
 
-        $I->dontSeeElement('#product-5 .form-message .form-success');
-        $I->dontSeeElement('#product-5 .form-message .form-error');
+        $I->waitForElementNotVisible('#product-5 .form-message .form-success');
+        $I->waitForElementNotVisible('#product-5 .form-message .form-error');
 
         $I->fillField('tx_cart_cart[quantity]', 2);
         $I->selectOption('tx_cart_cart[beVariants][1]', 'green');
@@ -42,10 +41,9 @@ public function testAddDifferentItemsToCart(Tester $I): void
 
         $I->see('2 Items were added to cart.', '#product-5 .form-message .form-success');
         $I->dontSeeElement('#product-5 .form-message .form-error');
-        $I->wait(3);
 
-        $I->dontSeeElement('#product-5 .form-message .form-success');
-        $I->dontSeeElement('#product-5 .form-message .form-error');
+        $I->waitForElementNotVisible('#product-5 .form-message .form-success');
+        $I->waitForElementNotVisible('#product-5 .form-message .form-error');
 
         $I->fillField('tx_cart_cart[quantity]', 100);
         $I->selectOption('tx_cart_cart[beVariants][1]', 'red');
@@ -53,9 +51,8 @@ public function testAddDifferentItemsToCart(Tester $I): void
 
         $I->see('100 Items were added to cart.', '#product-5 .form-message .form-success');
         $I->dontSeeElement('#product-5 .form-message .form-error');
-        $I->wait(3);
 
-        $I->dontSeeElement('#product-5 .form-message .form-success');
-        $I->dontSeeElement('#product-5 .form-message .form-error');
+        $I->waitForElementNotVisible('#product-5 .form-message .form-success');
+        $I->waitForElementNotVisible('#product-5 .form-message .form-error');
     }
 }
diff --git a/Tests/Acceptance/AddSimpleProductWithStockHandlingToCartCest.php b/Tests/Acceptance/AddSimpleProductWithStockHandlingToCartCest.php
index d54be8ca..b0e2ae20 100644
--- a/Tests/Acceptance/AddSimpleProductWithStockHandlingToCartCest.php
+++ b/Tests/Acceptance/AddSimpleProductWithStockHandlingToCartCest.php
@@ -30,20 +30,18 @@ public function testAddDifferentItemsWithinAvailableAmountToCart(Tester $I): voi
 
         $I->see('Item was added to cart.', '#product-1 .form-message .form-success');
         $I->dontSeeElement('#product-1 .form-message .form-error');
-        $I->wait(3);
 
-        $I->dontSeeElement('#product-1 .form-message .form-success');
-        $I->dontSeeElement('#product-1 .form-message .form-error');
+        $I->waitForElementNotVisible('#product-1 .form-message .form-success');
+        $I->waitForElementNotVisible('#product-1 .form-message .form-error');
 
         $I->fillField('tx_cart_cart[quantity]', 2);
         $I->click('#product-1.add-to-cart-form input.btn[type="submit"]');
 
         $I->see('2 Items were added to cart.', '#product-1 .form-message .form-success');
         $I->dontSeeElement('#product-1 .form-message .form-error');
-        $I->wait(3);
 
-        $I->dontSeeElement('#product-1 .form-message .form-success');
-        $I->dontSeeElement('#product-1 .form-message .form-error');
+        $I->waitForElementNotVisible('#product-1 .form-message .form-success');
+        $I->waitForElementNotVisible('#product-1 .form-message .form-error');
     }
 
     public function testAddMoreItemsThanInStockOfASimpleProductToCart(Tester $I): void
@@ -62,10 +60,8 @@ public function testAddMoreItemsThanInStockOfASimpleProductToCart(Tester $I): vo
         $I->dontSeeElement('#product-1 .form-message .form-success');
         $I->see('Desired number of this item not available.', '#product-1 .form-message .form-error');
 
-        $I->wait(3);
-
-        $I->dontSeeElement('#product-1 .form-message .form-success');
-        $I->dontSeeElement('#product-1 .form-message .form-error');
+        $I->waitForElementNotVisible('#product-1 .form-message .form-success');
+        $I->waitForElementNotVisible('#product-1 .form-message .form-error');
     }
 
     public function testAddOneAndThanMoreItemsThanInStockOfASimpleProductToCart(Tester $I): void
@@ -83,10 +79,9 @@ public function testAddOneAndThanMoreItemsThanInStockOfASimpleProductToCart(Test
 
         $I->see('Item was added to cart.', '#product-1 .form-message .form-success');
         $I->dontSeeElement('#product-1 .form-message .form-error');
-        $I->wait(3);
 
-        $I->dontSeeElement('#product-1 .form-message .form-success');
-        $I->dontSeeElement('#product-1 .form-message .form-error');
+        $I->waitForElementNotVisible('#product-1 .form-message .form-success');
+        $I->waitForElementNotVisible('#product-1 .form-message .form-error');
 
         $I->fillField('tx_cart_cart[quantity]', 10);
         $I->click('#product-1.add-to-cart-form input.btn[type="submit"]');
@@ -94,9 +89,7 @@ public function testAddOneAndThanMoreItemsThanInStockOfASimpleProductToCart(Test
         $I->dontSeeElement('#product-1 .form-message .form-success');
         $I->see('Desired number of this item not available.', '#product-1 .form-message .form-error');
 
-        $I->wait(3);
-
-        $I->dontSeeElement('#product-1 .form-message .form-success');
-        $I->dontSeeElement('#product-1 .form-message .form-error');
+        $I->waitForElementNotVisible('#product-1 .form-message .form-success');
+        $I->waitForElementNotVisible('#product-1 .form-message .form-error');
     }
 }
diff --git a/Tests/Acceptance/AddSimpleProductWithoutStockHandlingToCartCest.php b/Tests/Acceptance/AddSimpleProductWithoutStockHandlingToCartCest.php
index 8d4585cc..df2d2eb5 100644
--- a/Tests/Acceptance/AddSimpleProductWithoutStockHandlingToCartCest.php
+++ b/Tests/Acceptance/AddSimpleProductWithoutStockHandlingToCartCest.php
@@ -30,29 +30,26 @@ public function testAddDifferentItemsToCart(Tester $I): void
 
         $I->see('Item was added to cart.', '#product-2 .form-message .form-success');
         $I->dontSeeElement('#product-2 .form-message .form-error');
-        $I->wait(3);
 
-        $I->dontSeeElement('#product-2 .form-message .form-success');
-        $I->dontSeeElement('#product-2 .form-message .form-error');
+        $I->waitForElementNotVisible('#product-2 .form-message .form-success');
+        $I->waitForElementNotVisible('#product-2 .form-message .form-error');
 
         $I->fillField('tx_cart_cart[quantity]', 2);
         $I->click('#product-2.add-to-cart-form input.btn[type="submit"]');
 
         $I->see('2 Items were added to cart.', '#product-2 .form-message .form-success');
         $I->dontSeeElement('#product-2 .form-message .form-error');
-        $I->wait(3);
 
-        $I->dontSeeElement('#product-2 .form-message .form-success');
-        $I->dontSeeElement('#product-2 .form-message .form-error');
+        $I->waitForElementNotVisible('#product-2 .form-message .form-success');
+        $I->waitForElementNotVisible('#product-2 .form-message .form-error');
 
         $I->fillField('tx_cart_cart[quantity]', 100);
         $I->click('#product-2.add-to-cart-form input.btn[type="submit"]');
 
         $I->see('100 Items were added to cart.', '#product-2 .form-message .form-success');
         $I->dontSeeElement('#product-2 .form-message .form-error');
-        $I->wait(3);
 
-        $I->dontSeeElement('#product-2 .form-message .form-success');
-        $I->dontSeeElement('#product-2 .form-message .form-error');
+        $I->waitForElementNotVisible('#product-2 .form-message .form-success');
+        $I->waitForElementNotVisible('#product-2 .form-message .form-error');
     }
 }
diff --git a/Tests/Fixtures/cart_products_test/Configuration/TypoScript/setup.typoscript b/Tests/Fixtures/cart_products_test/Configuration/TypoScript/setup.typoscript
index 57404ed0..20801205 100644
--- a/Tests/Fixtures/cart_products_test/Configuration/TypoScript/setup.typoscript
+++ b/Tests/Fixtures/cart_products_test/Configuration/TypoScript/setup.typoscript
@@ -1,2 +1,6 @@
 page = PAGE
-page.10 < styles.content.get
\ No newline at end of file
+page.10 < styles.content.get
+
+plugin.tx_cartproducts {
+    view.partialRootPaths.1 = EXT:cart_products_test/Resources/Private/Partials/
+}
diff --git a/Tests/Fixtures/cart_products_test/Resources/Private/Partials/Product/CartForm.html b/Tests/Fixtures/cart_products_test/Resources/Private/Partials/Product/CartForm.html
new file mode 100644
index 00000000..292f6648
--- /dev/null
+++ b/Tests/Fixtures/cart_products_test/Resources/Private/Partials/Product/CartForm.html
@@ -0,0 +1,58 @@
+<html xmlns:f="http://typo3.org/ns/TYPO3/CMS/Fluid/ViewHelpers"
+      xmlns:cartproducts="http://typo3.org/ns/Extcode/CartProducts/ViewHelpers"
+      data-namespace-typo3-fluid="true">
+
+<f:asset.script identifier="add-to-cart" src="EXT:cart/Resources/Public/JavaScript/add_to_cart.js" />
+
+<div class="cart_form">
+    <f:form id="product-{product.uid}"
+            class="add-to-cart-form"
+            pageUid="{pid}"
+            extensionName="Cart"
+            pluginName="Cart"
+            controller="Cart\Product"
+            action="add"
+            method="post"
+            pageType="{settings.addToCartByAjax}"
+            additionalAttributes="{data-ajax: '{f:if(condition: \'{settings.addToCartByAjax}\', then: \'1\', else: \'0\')}', data-type: 'slot', data-id: '{slot.uid}'}">
+        <input type="hidden" name="tx_cart_cart[productType]" value="CartProducts">
+        <input type="hidden" name="tx_cart_cart[product]" value="{product.uid}">
+
+        <input class="form-control" type="number" value="1" name="tx_cart_cart[quantity]">
+        <f:if condition="{product.beVariants}">
+            <f:asset.script identifier="change-be-variant" src="EXT:cart/Resources/Public/JavaScript/change_be_variant.js" />
+            <cartproducts:form.variantSelect
+                    id="be-variants-select"
+                    class="form-control"
+                    name="tx_cart_cart[beVariants][1]"
+                    product="{product}"
+                    blank="{f:translate(key: 'tx_cartproducts.variants-select.choose')}"/>
+        </f:if>
+        <f:if condition="{product.feVariants}">
+            <f:for each="{product.feVariants}" as="feVariant">
+                <f:if condition="{feVariant.isRequired}">
+                    <f:then>
+                        <label for="product-fevariant-{feVariant.uid}" class="required">{feVariant.title} <em>*</em></label>
+                        <input id="product-fevariant-{feVariant.uid}" type="text" name="tx_cart_cart[feVariants][{feVariant.sku}]" required="true">
+                    </f:then>
+                    <f:else>
+                        <label for="product-fevariant-{feVariant.uid}">{feVariant.title}</label>
+                        <input id="product-fevariant-{feVariant.uid}" type="text" name="tx_cart_cart[feVariants][{feVariant.sku}]">
+                    </f:else>
+                </f:if>
+            </f:for>
+        </f:if>
+        <input type="submit" class="btn btn-default form-control" value="<f:translate key='tx_cartproducts.plugin.form.submit' />">
+
+        <div class="form-message" data-ajax-message-timeout="500">
+            <div class="form-success" style="display: none;" data-ajax-success-block="">
+                <div class="alert alert-success" data-ajax-success-message=""></div>
+            </div>
+            <div class="form-error" style="display: none;" data-ajax-error-block>
+                <div class="alert alert-warning" data-ajax-error-message></div>
+            </div>
+        </div>
+    </f:form>
+</div>
+
+</html>