Equivalence partitioning in Testing Fundamentals - Framework Patterns

Framework Mode - Equivalence partitioning

Folder Structure for Equivalence Partitioning Test Framework

  equivalence-partitioning-testing/
  ├── tests/
  │   ├── test_input_partitions.py
  │   └── test_output_partitions.py
  ├── partitions/
  │   ├── input_partitions.py
  │   └── output_partitions.py
  ├── utils/
  │   └── partition_helpers.py
  ├── config/
  │   └── config.yaml
  ├── reports/
  └── conftest.py
  

Test Framework Layers

• Partitions Layer: Defines equivalence classes for inputs and outputs. For example, valid and invalid input ranges.
• Tests Layer: Contains test cases that use partitions to select representative test inputs from each class.
• Utilities Layer: Helper functions to generate test data from partitions and validate results.
• Configuration Layer: Holds environment settings, test parameters, and credentials if needed.
• Reports Layer: Stores test execution reports and logs.

Configuration Patterns

Use a config.yaml file to define:

• Environment details (e.g., dev, test, prod)
• Test parameters like input value ranges
• Output expectations for each partition

Load configuration in conftest.py to share settings across tests.

Test Reporting and CI/CD Integration

• Use pytest built-in reporting with --junitxml=reports/report.xml for XML reports.
• Integrate with CI tools like GitHub Actions or Jenkins to run tests on each commit.
• Publish reports to CI dashboards for quick feedback.

Framework Design Principles for Equivalence Partitioning

1. Clear Partition Definitions: Define input and output partitions explicitly to avoid overlap and gaps.
2. Representative Test Selection: Choose one or two values from each partition to reduce test count but maintain coverage.
3. Reusable Partition Code: Keep partition logic separate and reusable for different tests.
4. Configurable Partitions: Allow partitions to be updated via config files without changing code.
5. Automated Reporting: Ensure test results clearly show which partitions passed or failed.

Self Check Question

Where in this folder structure would you add a new partition for a different input type?

Key Result

Organize tests by defining clear input/output partitions, selecting representative values, and separating partition logic for reuse.