diff --git a/test/conftest.py b/test/conftest.py
new file mode 100644
index 0000000..55cbf47
--- /dev/null
+++ b/test/conftest.py
@@ -0,0 +1,101 @@
+# conftest.py
+import pytest
+from selenium import webdriver
+from selenium.webdriver.chrome.options import Options
+from selenium.webdriver.support.ui import WebDriverWait
+from pathlib import Path
+import openpyxl
+
+
+@pytest.fixture(scope="session")
+def browser_options():
+    options = Options()
+    options.add_argument("--start-maximized")
+    # options.add_argument("--headless")  # Optional für CI/CD
+    return options
+
+
+@pytest.fixture(scope="function")
+def driver(browser_options):
+    """Erstellt einen neuen Browser pro Test"""
+    driver = webdriver.Chrome(options=browser_options)
+    driver.implicitly_wait(10)
+    yield driver
+    driver.quit()
+
+
+@pytest.fixture(scope="function")
+def wait(driver):
+    """WebDriverWait Instanz"""
+    return WebDriverWait(driver, 20)
+
+
+@pytest.fixture
+def base_url():
+    """Basis-URL deiner Anwendung"""
+    return "http://localhost:5173"
+
+
+def pytest_generate_tests(metafunc):
+    """Parametrisiert Tests basierend auf Excel-Dateien im testdata Ordner"""
+    if "testcase_file" in metafunc.fixturenames:
+        testdata_dir = Path("testcases")
+        excel_files = list(testdata_dir.glob("*.xlsx"))
+
+        # IDs für bessere Testausgabe
+        ids = [f.stem for f in excel_files]
+
+        metafunc.parametrize("testcase_file", excel_files, ids=ids)
+
+
+@pytest.fixture
+def test_data(testcase_file):
+    """Lädt Testdaten aus Excel-Datei"""
+    wb = openpyxl.load_workbook(testcase_file)
+
+    # Eingabedaten aus "in" Sheet
+    input_sheet = wb["in"]
+    input_data = {}
+    groups = {}
+    for row in input_sheet.iter_rows(values_only=True):
+        if row[0]:  # Feldname in Spalte A
+            if '_' in row[0]:
+                [remainder, suffix] = row[0].rsplit('_',1)
+                if suffix.isdigit():
+                    [prefix, name] = remainder.split('_',1)
+                    if prefix not in groups:
+                        groups[prefix] = {}
+                    if groups[prefix].get(suffix) is None:
+                        groups[prefix][suffix] = {}
+                    groups[prefix][suffix][name] = row[1]
+                else:
+                    input_data[row[0]] = row[1]
+            else:
+                input_data[row[0]] = row[1]  # Wert in Spalte B
+    input_data.update(groups)
+
+    # Erwartete Ausgaben aus "out" Sheet
+    output_sheet = wb["out"]
+    expected_data = {}
+    expected_groups = {}
+    for row in input_sheet.iter_rows(values_only=True):
+        if row[0]:  # Feldname in Spalte A
+            if '_' in row[0]:
+                [remainder, suffix] = row[0].rsplit('_',1)
+                if suffix.isdigit():
+                    [prefix, name] = remainder.split('_',1)
+                    if prefix not in expected_groups:
+                        expected_groups[prefix] = {}
+                    if expected_groups[prefix].get(suffix) is None:
+                        expected_groups[prefix][suffix] = {}
+                    expected_groups[prefix][suffix][name] = row[1]
+                else:
+                    expected_data[row[0]] = row[1]
+            else:
+                expected_data[row[0]] = row[1]  # Wert in Spalte B
+    expected_data.update(expected_groups)
+    return {
+        "input": input_data,
+        "expected": expected_data,
+        "filename": testcase_file.name
+    }
\ No newline at end of file
diff --git a/test/pages/assistant.py b/test/pages/assistant.py
new file mode 100644
index 0000000..e5d07ba
--- /dev/null
+++ b/test/pages/assistant.py
@@ -0,0 +1,46 @@
+import time
+
+from selenium.webdriver.common.by import By
+
+from conftest import driver
+from pages.base_page import BasePage
+
+
+class Assistant(BasePage):
+    """Page Object für den Assistant"""
+
+    # Mapping von Excel-Feldnamen zu Locators
+    FIELD_MAPPING = {
+        "PART_NUMBER": (By.CSS_SELECTOR, "textarea[name='partNumbers']"),
+        "ANALYZE_BUTTON": (By.CSS_SELECTOR, ".part-number-modal-action > .btn--primary"),
+        "SUPPLIER_NAME": (By.CSS_SELECTOR, ".supplier-headers-searchbar-container .search-input"),
+        "LOAD_FROM_PREVIOUS": (By.CSS_SELECTOR, ".start-calculation-footer-container .checkbox-item"),
+        "CREATE_CALCULATION_BUTTON": (By.CSS_SELECTOR, ".start-calculation-footer-container .btn--secondary"),
+        "DELETE_SUPPLIER_BUTTON": (By.CSS_SELECTOR, ".supplier-headers ~ .item-list .item-list-element .icon-btn-container .icon-btn"),
+    }
+
+    def search_part_numbers(self, data_dict):
+        """Füllt das Formular mit Daten aus dem Excel"""
+        self.fill_input(*self.FIELD_MAPPING["PART_NUMBER"], data_dict["PART_NUMBER"])
+        self.click_button(*self.FIELD_MAPPING["ANALYZE_BUTTON"])
+
+    def delete_preselected_suppliers(self):
+        while True:
+            try:
+                button = self.wait_for_clickable(
+                    *self.FIELD_MAPPING["DELETE_SUPPLIER_BUTTON"],
+                    timeout=1
+                )
+                button.click()
+                time.sleep(0.2)
+            except:
+                # Keine Buttons mehr vorhanden
+                break
+
+    def select_supplier(self, data_dict):
+        self.search_and_select_autosuggest(*self.FIELD_MAPPING["SUPPLIER_NAME"], data_dict["SUPPLIER_NAME"])
+
+
+    def create_calculation(self, data_dict):
+        self.set_checkbox(*self.FIELD_MAPPING["LOAD_FROM_PREVIOUS"], data_dict["LOAD_FROM_PREVIOUS"])
+        self.click_button(*self.FIELD_MAPPING["CREATE_CALCULATION_BUTTON"])
diff --git a/test/pages/base_page.py b/test/pages/base_page.py
new file mode 100644
index 0000000..4a19b18
--- /dev/null
+++ b/test/pages/base_page.py
@@ -0,0 +1,147 @@
+# pages/base_page.py
+from selenium.webdriver.support.ui import WebDriverWait
+from selenium.webdriver.support import expected_conditions as EC
+from selenium.webdriver.common.by import By
+from selenium.common.exceptions import TimeoutException
+import time
+import logging
+
+logging.basicConfig(level=logging.INFO)
+logger = logging.getLogger(__name__)
+
+class BasePage:
+    """Basis-Klasse für alle Page Objects"""
+
+    def __init__(self, driver, wait):
+        self.driver = driver
+        self.wait = wait
+
+    def wait_for_spa_navigation(self, expected_route_part, timeout=2):
+        """Wartet bis SPA zur erwarteten Route navigiert hat"""
+        WebDriverWait(self.driver, timeout).until(
+            lambda d: expected_route_part in d.current_url
+        )
+        # Zusätzlich auf Vue-Rendering warten
+        time.sleep(0.5)
+
+    def wait_for_element(self, by, value, timeout=2):
+        """Wartet auf ein Element"""
+        start_time = time.time()
+        logger.info(f"Waiting for element: {by}={value}")
+
+        result = WebDriverWait(self.driver, timeout).until(
+            EC.presence_of_element_located((by, value))
+        )
+
+        elapsed = time.time() - start_time
+        logger.info(f"Found element after {elapsed:.2f}s")
+        return result
+    def wait_for_clickable(self, by, value, timeout=2):
+        """Wartet bis Element klickbar ist"""
+        return WebDriverWait(self.driver, timeout).until(
+            EC.element_to_be_clickable((by, value))
+        )
+
+    def fill_input(self, by, value, text, check_existence=False, timeout=2):
+        if check_existence:
+            # Prüfe ob Element existiert
+            try:
+                element = WebDriverWait(self.driver, timeout).until(
+                    EC.presence_of_element_located((by, value))
+                )
+                logger.info(f"Element exists, filling...")
+            except TimeoutException:
+                logger.warning(f"Element does not exist, skipping (check_existence=True)")
+                return False
+        else:
+            # Normaler Modus - erwarte dass Element existiert
+            element = self.wait_for_element(by, value, timeout)
+
+        # Element existiert - jetzt füllen
+        element.clear()
+        element.send_keys(text)
+        logger.info(f"Filled input with: {text}")
+        return True
+
+    def click_button(self, by, value):
+        """Klickt einen Button"""
+        start_time = time.time()
+        logger.info(f"Clicking button: {by}={value}")
+
+        button = self.wait_for_clickable(by, value)
+        button.click()
+
+        elapsed = time.time() - start_time
+        logger.info(f"Clicked after {elapsed:.2f}s")
+
+    def set_checkbox(self, by, value, checked, timeout=2):
+        label = self.wait_for_clickable(by, value, timeout)
+
+        checkbox_input = label.find_element(By.CSS_SELECTOR, "input[type='checkbox']")
+
+        is_checked = checkbox_input.is_selected()
+
+        if is_checked != checked:
+            label.click()
+            time.sleep(0.3)
+
+
+    def select_dropdown_option(self, by, value, option_text, timeout=10):
+        dropdown_button = self.wait_for_element(by, value, timeout=timeout)
+
+        try:
+            current_value = dropdown_button.find_element(
+                By.CSS_SELECTOR,
+                "span.dropdown-trigger-text"
+            ).text
+
+            if current_value == option_text:
+                logger.info(f"Dropdown already has value: {option_text}")
+                return
+        except:
+            pass  # Falls kein Text gefunden wurde, öffne das Dropdown
+
+        dropdown_button.click()
+        logger.info("Opened dropdown")
+
+        menu = WebDriverWait(self.driver, timeout).until(
+            EC.visibility_of_element_located((By.CSS_SELECTOR, "ul.dropdown-menu"))
+        )
+        logger.info("Dropdown menu visible")
+
+        option_xpath = f"//li[contains(@class, 'dropdown-option')][normalize-space(text())='{option_text}']"
+        option = WebDriverWait(self.driver, timeout).until(
+            EC.element_to_be_clickable((By.XPATH, option_xpath))
+        )
+
+        logger.info(f"Clicking option: {option_text}")
+        option.click()
+
+
+        time.sleep(0.2)
+
+    def search_and_select_autosuggest(self, by_or_selector, value_or_search_text,
+                                      search_text=None,
+                                      suggestion_selector=".suggestion-item",
+                                      timeout=2):
+
+        if search_text is not None:
+            # Fall: (By.CSS_SELECTOR, ".selector", "search_text")
+            search_input = self.wait_for_element(by_or_selector, value_or_search_text, timeout)
+            text_to_search = search_text
+        else:
+            # Fall: (".selector", "search_text")
+            search_input = self.wait_for_element(By.CSS_SELECTOR, by_or_selector, timeout)
+            text_to_search = value_or_search_text
+
+        search_input.clear()
+        search_input.send_keys(text_to_search)
+
+        time.sleep(1)
+
+        suggestion = WebDriverWait(self.driver, timeout).until(
+            EC.element_to_be_clickable((By.CSS_SELECTOR, suggestion_selector))
+        )
+        suggestion.click()
+
+        time.sleep(0.5)
diff --git a/test/pages/calculation_page.py b/test/pages/calculation_page.py
new file mode 100644
index 0000000..56b1fea
--- /dev/null
+++ b/test/pages/calculation_page.py
@@ -0,0 +1,157 @@
+# pages/calculation_page.py
+from selenium.webdriver.common.by import By
+from pages.base_page import BasePage
+import logging
+
+logger = logging.getLogger(__name__)
+
+
+class CalculationPage(BasePage):
+    """Page Object für die Berechnungsformulare"""
+
+    # WICHTIG: Verwende data-v-* Attribute NUR wenn sie WIRKLICH stabil sind
+    # Besser: Positionsbasierte Selektoren mit aussagekräftigen Parent-Elementen
+
+    FIELD_MAPPING = {
+        # Material-Sektion (erste Box)
+        "HS_CODE": (
+            By.XPATH,
+            "//div[contains(@class, 'master-data-item')][1]//div[contains(@class, 'caption-column')][text()='HS code']"
+            "/following-sibling::div//input[@class='input-field']"
+        ),
+        "TARIFF_RATE": (
+            By.XPATH,
+            "//div[contains(@class, 'master-data-item')][1]//div[contains(@class, 'caption-column')][contains(text(), 'Tariff rate')]"
+            "/following-sibling::div//input[@class='input-field']"
+        ),
+
+        # Price-Sektion (zweite Box)
+        "PRICE": (
+            By.XPATH,
+            "//div[contains(@class, 'master-data-item')][2]//div[contains(@class, 'caption-column')][text()='MEK_A [EUR]']"
+            "/following-sibling::div//input[@class='input-field']"
+        ),
+        "OVERSEA_SHARE": (
+            By.XPATH,
+            "//div[contains(@class, 'master-data-item')][2]//div[contains(@class, 'caption-column')][contains(text(), 'Oversea share')]"
+            "/following-sibling::div//input[@class='input-field']"
+        ),
+        # Handling Unit-Sektion (dritte Box)
+        "LENGTH": (
+            By.XPATH,
+            "//div[contains(@class, 'master-data-item')][3]//div[contains(@class, 'caption-column')][text()='HU length']"
+            "/following-sibling::div//input[@class='input-field']"
+        ),
+        "WIDTH": (
+            By.XPATH,
+            "//div[contains(@class, 'master-data-item')][3]//div[contains(@class, 'caption-column')][text()='HU width']"
+            "/following-sibling::div//input[@class='input-field']"
+        ),
+        "HEIGHT": (
+            By.XPATH,
+            "//div[contains(@class, 'master-data-item')][3]//div[contains(@class, 'caption-column')][text()='HU height']"
+            "/following-sibling::div//input[@class='input-field']"
+        ),
+        "WEIGHT": (
+            By.XPATH,
+            "//div[contains(@class, 'master-data-item')][3]//div[contains(@class, 'caption-column')][text()='HU weight']"
+            "/following-sibling::div//input[@class='input-field']"
+        ),
+        "PIECES_UNIT": (
+            By.XPATH,
+            "//div[contains(@class, 'master-data-item')][3]//div[contains(@class, 'caption-column')][text()='Pieces per HU']"
+            "/following-sibling::div//input[@class='input-field']"
+        ),
+
+        # Dropdowns
+        "DIMENSION_UNIT": (
+            By.XPATH,
+            "//div[contains(@class, 'master-data-item')][3]//div[contains(@class, 'caption-column')][text()='Dimension unit']"
+            "/following-sibling::div//button[contains(@class, 'dropdown-trigger')]"
+        ),
+        "WEIGHT_UNIT": (
+            By.XPATH,
+            "//div[contains(@class, 'master-data-item')][3]//div[contains(@class, 'caption-column')][text()='Weight unit']"
+            "/following-sibling::div//button[contains(@class, 'dropdown-trigger')]"
+        ),
+
+        # Checkboxen
+        "FBA_FEE": (
+            By.XPATH,
+            "//div[contains(@class, 'master-data-item')][2]"
+            "//label[contains(@class, 'checkbox-item')]"
+            "[.//span[contains(@class, 'checkbox-label')][normalize-space(text())='']]"
+        ),
+        "MIXED": (
+            By.XPATH,
+            "//label[contains(@class, 'checkbox-item')]"
+            "[.//span[contains(@class, 'checkbox-label')][text()='Mixable']]"
+        ),
+        "STACKED": (
+            By.XPATH,
+            "//label[contains(@class, 'checkbox-item')]"
+            "[.//span[contains(@class, 'checkbox-label')][text()='Stackable']]"
+        ),
+    }
+
+    DEST_FIELD_MAPPING = {
+        "NAME": (By.XPATH, "//input[@placeholder='Add new Destination ...']"),
+        "QUANTITY": (By.XPATH,
+                     "//div[contains(@class, 'destination-edit-column-caption') and contains(text(), 'Annual quantity')]/following-sibling::div[1]//input[@class='input-field']")
+        "ROUTING": (By.XPATH,
+                    "//input[@type='radio' and @name='model' and @value='routing']"),
+        "D2D": (By.XPATH,
+                "//input[@type='radio' and @name='model' and @value='d2d']"),
+        "ROUTE": (By.XPATH,
+                  "//div[@class='destination-route-container']//div[contains(@class, 'destination-route-inner-container')][.//span[contains(text(), 'Ireland Su')] and .//span[contains(text(), 'WH ULHA')] and .//span[contains(text(), 'AB')]]")
+        "HANDLING_TAB": (By.XPATH, "//button[@class='tab-header' and text()='Handling & Repackaging']"),
+        "CUSTOM_HANDLING": (By.XPATH,
+                            "//div[@class='destination-edit-handling-cost']//label[@class='checkbox-item']/input[@type='checkbox']"),
+        "REPACKING": (By.XPATH,
+                      "//div[@class='destination-edit-column-caption' and contains(text(), 'Repackaging cost')]/following-sibling::div[@class='destination-edit-column-data'][1]//input[@class='input-field']"),
+        "HANDLING": (By.XPATH,
+                      "//div[@class='destination-edit-column-caption' and contains(text(), 'Handling cost')]/following-sibling::div[@class='destination-edit-column-data'][1]//input[@class='input-field']"),
+        "DISPOSAL": (By.XPATH,
+                      "//div[@class='destination-edit-column-caption' and contains(text(), 'Disposal cost')]/following-sibling::div[@class='destination-edit-column-data'][1]//input[@class='input-field']"),
+    }
+
+    # Buttons
+    CALCULATE_CLOSE_BUTTON = (By.XPATH, "//button[contains(., 'Calculate & close')]")
+    CLOSE_BUTTON = (By.XPATH, "//button[contains(., 'Close') and not(contains(., 'Calculate'))]")
+
+    def fill_form(self, data_dict):
+        """Füllt das Formular mit Daten aus dem Excel"""
+        for field_name, locator in self.FIELD_MAPPING.items():
+
+            value = data_dict[field_name]
+            logger.info(f"Filling field: {field_name} = {value}")
+
+            try:
+                if field_name in ["FBA_FEE", "STACKED", "MIXED"]:
+                    self.set_checkbox(*locator, str(value) == 'True')
+
+                elif field_name in ["DIMENSION_UNIT", "WEIGHT_UNIT"]:
+                    self.select_dropdown_option(*locator, str(value))
+
+                else:
+                    self.fill_input(*locator, str(value), check_existence=field_name in ["HS_CODE", "TARIFF_RATE"])
+
+            except Exception as e:
+                logger.error(f"Failed to fill field {field_name}: {e}")
+                self.driver.save_screenshot(f"failed_field_{field_name}.png")
+                raise Exception(f"Could not fill field '{field_name}': {e}") from e
+
+    def add_destination(self, data_dict):
+        self.search_and_select_autosuggest(*self.DEST_FIELD_MAPPING["NAME"], data_dict["NAME"])
+
+    def fill_destination(self, data_dict):
+        self.wait_for_element(*self.DEST_FIELD_MAPPING["QUANTITY"])
+        pass
+
+    def click_calculate_and_close(self):
+        """Klickt auf 'Calculate & close' Button"""
+        self.click_button(*self.CALCULATE_CLOSE_BUTTON)
+
+    def click_close(self):
+        """Klickt auf 'Close' Button"""
+        self.click_button(*self.CLOSE_BUTTON)
diff --git a/test/pages/dev_page.py b/test/pages/dev_page.py
new file mode 100644
index 0000000..66de67d
--- /dev/null
+++ b/test/pages/dev_page.py
@@ -0,0 +1,53 @@
+# pages/results_page.py
+from selenium.webdriver.common.by import By
+from selenium.webdriver.support import expected_conditions as EC
+import time
+
+class DevPage:
+    MODAL_YES_BUTTON = (By.CSS_SELECTOR, "div.modal-dialog-actions button.btn--primary")
+    MODAL_NO_BUTTON = (By.CSS_SELECTOR, "div.modal-dialog-actions button.btn--secondary")
+
+    def __init__(self, driver, wait):
+        self.driver = driver
+        self.wait = wait
+
+    def dev_login(self, base_url, user_name="John"):
+        """
+        Simuliert Login über /dev Seite
+
+        Args:
+            base_url: Basis-URL der Anwendung
+            user_name: Vorname des Users (z.B. "John", "Sarah", "Mike")
+        """
+        # Navigiere zur Dev-Seite
+        self.driver.get(f"{base_url}/dev")
+
+        # Warte bis Tabelle geladen ist
+        self.wait.until(
+            EC.presence_of_element_located((By.CSS_SELECTOR, "table.data-table"))
+        )
+
+        # Finde die User-Row anhand des Vornamens
+        # Die Tabelle hat Spalten: First name | Last name | E-Mail | ...
+        rows = self.driver.find_elements(By.CSS_SELECTOR, "table.data-table tbody tr.table-row")
+
+        for row in rows:
+            cells = row.find_elements(By.TAG_NAME, "td")
+            if cells and user_name in cells[0].text:  # cells[0] ist "First name"
+                # Klicke auf die Row
+                self.wait.until(EC.element_to_be_clickable(row))
+                row.click()
+                break
+        else:
+            raise Exception(f"User '{user_name}' nicht in der Dev-User-Tabelle gefunden")
+
+        # Warte auf Modal und klicke "Yes"
+        yes_button = self.wait.until(
+            EC.element_to_be_clickable(self.MODAL_YES_BUTTON)
+        )
+        yes_button.click()
+
+        # Warte bis Modal geschlossen ist
+        self.wait.until(
+            EC.invisibility_of_element_located((By.CSS_SELECTOR, "div.modal-container"))
+        )
\ No newline at end of file
diff --git a/test/pages/navigation.py b/test/pages/navigation.py
new file mode 100644
index 0000000..7c8ea82
--- /dev/null
+++ b/test/pages/navigation.py
@@ -0,0 +1,29 @@
+# pages/navigation.py
+from selenium.webdriver.common.by import By
+
+from pages.assistant import Assistant
+from pages.base_page import BasePage
+from pages.calculation_page import CalculationPage
+from pages.results_page import ResultsPage
+
+
+class Navigation(BasePage):
+    """Handhabt die SPA-Navigation"""
+
+    # Locators für Navigationselemente
+    MENU_BUTTON = (By.CSS_SELECTOR, "button.menu-toggle")
+    NEW_CALCULATION_LINK = (By.CSS_SELECTOR, "a[href*='/assistant']")
+    RESULTS_LINK = (By.CSS_SELECTOR, "a[href*='/results']")
+
+    def start_calculation(self, base_url):
+        """Navigiert zur Berechnungsseite"""
+        self.driver.get(base_url+"/assistant")
+        self.wait_for_spa_navigation("/assistant")
+        return Assistant(self.driver, self.wait)
+
+
+    def navigate_to_results(self):
+        """Navigiert zur Ergebnisseite"""
+        self.click_button(*self.RESULTS_LINK)
+        self.wait_for_spa_navigation("/results")
+        return ResultsPage(self.driver, self.wait)
\ No newline at end of file
diff --git a/test/pages/results_page.py b/test/pages/results_page.py
new file mode 100644
index 0000000..9d76774
--- /dev/null
+++ b/test/pages/results_page.py
@@ -0,0 +1,35 @@
+# pages/results_page.py
+from selenium.webdriver.common.by import By
+from pages.base_page import BasePage
+
+
+class ResultsPage(BasePage):
+    """Page Object für die Ergebnisseite"""
+
+    # Mapping von Excel-Feldnamen zu Locators
+    RESULT_MAPPING = {
+        "gesamtkosten": (By.ID, "result-total-cost"),
+        "zollgebuehr": (By.ID, "result-customs-fee"),
+        "transportkosten": (By.ID, "result-transport-cost"),
+        "mehrwertsteuer": (By.ID, "result-vat"),
+        # Weitere Ergebnisfelder...
+    }
+
+    def wait_for_results(self):
+        """Wartet bis Ergebnisse geladen sind"""
+        self.wait_for_element(By.CSS_SELECTOR, ".results-container.loaded")
+
+    def read_results(self):
+        """Liest alle Ergebniswerte aus"""
+        self.wait_for_results()
+
+        results = {}
+        for field_name, locator in self.RESULT_MAPPING.items():
+            try:
+                element = self.wait_for_element(*locator)
+                results[field_name] = element.text
+            except Exception as e:
+                print(f"Fehler beim Lesen von '{field_name}': {e}")
+                results[field_name] = None
+
+        return results
\ No newline at end of file
diff --git a/test/pytest.ini b/test/pytest.ini
new file mode 100644
index 0000000..e74e39e
--- /dev/null
+++ b/test/pytest.ini
@@ -0,0 +1,18 @@
+[pytest]
+log_cli = true
+log_cli_level = INFO
+log_cli_format = %(asctime)s [%(levelname)s] %(message)s
+log_cli_date_format = %H:%M:%S
+testpaths = .
+python_files = test_*.py
+python_classes = Test*
+python_functions = test_*
+addopts =
+    -v
+    --tb=short
+    --capture=no
+    --html=reports/report.html
+    --self-contained-html
+markers =
+    smoke: Smoke tests
+    regression: Regression tests
\ No newline at end of file
diff --git a/test/requirements.txt b/test/requirements.txt
new file mode 100644
index 0000000..323adac
--- /dev/null
+++ b/test/requirements.txt
@@ -0,0 +1,5 @@
+pytest==9.0.2
+selenium==4.39.0
+openpyxl==3.1.5
+pytest-html==4.1.1
+webdriver-manager==4.0.2
\ No newline at end of file
diff --git a/test/test_calculation.py b/test/test_calculation.py
new file mode 100644
index 0000000..dd7d95a
--- /dev/null
+++ b/test/test_calculation.py
@@ -0,0 +1,70 @@
+# tests/test_calculation.py
+import pytest
+
+from pages.dev_page import DevPage
+from pages.navigation import Navigation
+from pages.calculation_page import CalculationPage
+from pages.results_page import ResultsPage
+
+
+class TestCalculation:
+    """Testklasse für Berechnungslogik"""
+
+    def test_calculation_workflow(self, driver, wait, base_url, test_data):
+        """
+        Haupttest: Führt einen kompletten Berechnungsdurchlauf durch
+        Wird automatisch für jede Excel-Datei parametrisiert
+        """
+
+        login_page = DevPage(driver, wait)
+        login_page.dev_login(base_url, user_name="John")
+
+
+        # Setup assistant
+        nav = Navigation(driver, wait)
+        assistant = nav.start_calculation(base_url)
+        assistant.search_part_numbers(test_data["input"])
+        assistant.delete_preselected_suppliers()
+        assistant.select_supplier(test_data["input"])
+        assistant.create_calculation(test_data["input"])
+
+        # Fill calculation page
+        calc_page = CalculationPage(driver, wait)
+        calc_page.fill_form(test_data["input"])
+
+        for destination in test_data["input"]["DESTINATION"].values():
+            calc_page.add_destination(destination)
+            calc_page.fill_destination(destination)
+
+        # Ergebnisse lesen
+        results_page = ResultsPage(driver, wait)
+        actual_results = results_page.read_results()
+
+        # Assertions: Vergleich mit erwarteten Werten aus "out" Sheet
+        expected = test_data["expected"]
+
+        for field_name, expected_value in expected.items():
+            actual_value = actual_results.get(field_name)
+
+            # Numerische Werte mit Toleranz vergleichen
+            if self._is_numeric(expected_value):
+                expected_num = float(expected_value)
+                actual_num = float(actual_value.replace("€", "").replace(",", ".").strip())
+
+                assert pytest.approx(expected_num, rel=0.01) == actual_num, \
+                    f"Feld '{field_name}': Erwartet {expected_num}, erhalten {actual_num}"
+            else:
+                # String-Vergleich
+                assert str(actual_value).strip() == str(expected_value).strip(), \
+                    f"Feld '{field_name}': Erwartet '{expected_value}', erhalten '{actual_value}'"
+
+        print(f"✓ Test erfolgreich für {test_data['filename']}")
+
+    @staticmethod
+    def _is_numeric(value):
+        """Prüft ob Wert numerisch ist"""
+        try:
+            float(str(value).replace(",", "."))
+            return True
+        except (ValueError, AttributeError):
+            return False