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Shopify E2E Testing

This document outlines the automated end-to-end test scenarios for the Shopify-DATEV export platform, focusing on order processing, payment handling, and DATEV export validation.

Note: All tests follow the standardized test ID system. For details on the naming conventions, see the E2E Testing Conventions.

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Automation Approach

All tests described in this document are implemented as automated tests using Playwright. The documentation serves as a reference for:

• What functionality is being tested by our automation suite
• The business scenarios that each test validates
• Expected outcomes that the automated assertions verify

Each test case is implemented in the tests/e2e/shopify directory with filenames matching the test IDs.

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Core Test Scenarios

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Basic Order with VAT Processing

Scenario: Single product order with 19% VAT using Shopify Payments

What the automation verifies:

1. Order and Shopify Payments capture in CONA system
2. Journal entry creation with Fallback Accounts in CONA system
3. DATEV export generation contains:
   • Revenue entry with correct 19% VAT
   • Payment record (marked as not yet reconciled)
   • Proper tax account assignment

Expected Result: DATEV export shows revenue with correct VAT and unreconciled payment

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Payment Reconciliation Flow

Scenario: Reconciling payments for completed orders

What the automation verifies:

1. Creation of multiple orders with Shopify Payments
2. Reconciliation process in CONA
3. Updated DATEV export generation
4. Payment reconciliation status in DATEV export

Expected Result: Updated DATEV export shows reconciled payments (same Belegfeld 1 ID) with proper accounting entries

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Multi-Tax Rate Order Processing

Scenario: Order with mixed tax rates (19% and 7% VAT products)

What the automation verifies:

1. Product creation with different VAT rates
2. Purchase with mixed VAT products
3. DATEV export tax splitting accuracy

Expected Result: DATEV export correctly splits revenue by tax rate

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Refund Processing

Scenario: Full and partial refunds

What the automation verifies:

1. Order creation and completion
2. Full refund processing
3. Partial refund processing
4. DATEV export refund entries and VAT handling

Expected Result: DATEV export shows refund entries with proper VAT reversal

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Multi-Currency Handling

Scenario: Orders in different currencies

What the automation verifies:

1. Multi-currency shop configuration
2. Purchases in different currencies
3. DATEV export currency conversion

Expected Result: DATEV export shows correctly converted amounts in base currency

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Discount Handling

Scenario: Orders with various discount types

What the automation verifies:

1. Order creation with percentage discounts
2. Order creation with fixed amount discounts
3. Order creation with free shipping discounts
4. DATEV export discount accounting treatment

Expected Result: DATEV export correctly handles different discount types according to accounting rules

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Gift Card Processing

Scenario: Gift card purchase and redemption flow

What the automation verifies:

1. Gift card purchase and activation
2. Gift card redemption in orders
3. Partial gift card usage
4. DATEV export gift card accounting treatment

Expected Result: DATEV export properly accounts for gift card transactions

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Integration Test Scenarios

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DATEV Export Format Validation

Scenario: Validating export format compliance

What the automation verifies:

1. Exports with various data combinations
2. Export structure validation against DATEV specifications

Expected Result: All exports are DATEV-compliant

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Error Handling Test Scenarios

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Incomplete Data Handling

Scenario: Orders with missing information

What the automation verifies:

1. Orders with incomplete tax information
2. DATEV export generation with incomplete data
3. Error handling and logging mechanisms

Expected Result: System handles incomplete data gracefully with proper error logging

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Synchronization Failure Recovery

Scenario: Recovery from API failures

What the automation verifies:

1. Simulated Shopify API failures
2. Recovery mechanism triggering and execution
3. Data consistency after recovery

Expected Result: System recovers from API failures maintaining data integrity

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Performance Test Scenarios

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Bulk Order Processing

Scenario: Processing high volume of orders

What the automation verifies:

1. Large batch order generation and processing
2. System performance under load
3. DATEV export generation timing

Expected Result: System handles bulk processing within acceptable time frames

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Large DATEV Export Generation

Scenario: Generating export with extensive data

What the automation verifies:

1. Large dataset preparation
2. Export generation performance
3. Resource utilization during generation

Expected Result: Large exports generate within acceptable timeframes

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End-to-End User Journey Tests

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Complete Accounting Cycle

Scenario: Full monthly accounting cycle

What the automation verifies:

1. Shop setup with products and tax rates
2. Monthly transaction generation
3. Payment and reconciliation processing
4. Month-end export generation
5. Export completeness validation

Expected Result: Month-end export is complete and ready for accounting purposes