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Contractest

Generate contract and test that against a service.

Installation

python3 -m venv venv
source venv/bin/activate
pip install -r requirements.txt

Generate contract

  • Use the proxy in between service A and B. So if we want to test B, change the port of B to 7777 (default, can be configured in conf.toml). Adjust the proxy port so that A can talk to proxy and proxy talks to B and run the proxy:

    python -m contractest.proxy

  • Now send request from A. If A is a frontend/webapp just browse. You can also make flows like going through pages, clicking buttons, etc.

  • Notice the proxy is recording the contracts.

  • Quit (Ctrl+C) the proxy and the contracts are saved in contracts. (Can be configured in conf.toml)

There is already a sample contract in the repo. You can use that to test the service.

Test service

  • Run the service. In this example, B. Configure the service url in conf.yaml.

  • Run the test:

    python -m contractest.test_service