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Project description

Rigor is a Domain Specific Language (DSL) and Command Line Interface (CLI) for making HTTP requests, extracting data, and validating responses. The main intent of Rigor is to be an HTTP-based API (e.g. REST) Testing Framework for automated functional or integration testing.


  • Python 3.6


Install using pip3...

pip3 install rigor

Feature List

  • Functional testing without the need to write glue code. (e.g. Cucumber)
  • Runs in either synchronous (requests) or asynchronous (aiohttp) mode.
  • YAML-based format for Test Case files for easy test creation and maintenance.
  • Response transformation using to reduce test fragility.
  • Pretty HTML test execution reports using cucumber-sandwich.
  • Swagger path coverage report to ensure API surface area coverage.
  • Syntax highlighted console or JSON-based logging using structlog.
  • Profiles for switching between different environments and settings.
  • Tags and CLI options for selectively executing subsets of the test suite.
  • Scenario Outlines (i.e. Tables) for cases with numerous scenarios.
  • Beautiful Soup parsing for extraction from HTML data.
  • Proper error code ($?) on suite success (0) or failure (!0)
  • Case-scenario unique identifier (uuid) for managing session and race conditions.

Command Line Interface (CLI) Options

$ rigor --help
Usage: rigor [OPTIONS] [PATHS]...

  --profile TEXT             Profile name (e.g. test)
  --host TEXT                Host name (e.g. http://localhost:8000)
  -i, --includes TEXT        Include tag of cases. (e.g. smoke)
  -e, --excludes TEXT        Exclude tag of cases to run. (e.g. broken)
  -p, --prefixes TEXT        Filter cases by file prefix. (e.g. smoke_)
  -e, --extensions TEXT      Filter cases by file extension. (e.g. rigor)
  -c, --concurrency INTEGER  # of concurrent HTTP requests. (default: 5)
  -o, --output TEXT          Report output folder.
  -q, --quiet                Run in quiet mode. (warning/critical level only)
  -v, --verbose              Run in verbose mode. (debug level logging)
  -j, --json                 JSON-style logging.
  -h, --html                 Generate HTML report.
  -g, --coverage             Generate Coverage report.
  --help                     Show this message and exit.

Simple Example

(rigor) /p/tmp> cat test.rigor
name: Simple case.

  - description: Simple step.
      path: get

(rigor) /p/tmp> rigor test.rigor --html
2018-02-08 13:18.06 [info     ] no config file not found       [rigor] paths=('test.rigor',)
2018-02-08 13:18.06 [info     ] collecting tests               [rigor] cwd=/private/tmp paths=['test.rigor']
2018-02-08 13:18.06 [info     ] tests collected                [rigor] queued=1 skipped=0
2018-02-08 13:18.06 [info     ] execute suite complete         [rigor] failed=0 passed=1 timer=0.119s
2018-02-08 13:18.07 [info     ] launching browser              [rigor] report_path=/var/folders/b_/2hlrn_7930x81r009mfzl50m0000gn/T/tmps_8d7nn_/html-2018-02-08-08-18-06/cucumber-html-reports/cucumber-html-reports/overview-features.html



Object Model

  • suite: set of cases that gets built dynamically based on cli arguments.
  • case: set of scenarios and steps in a .rigor file.
  • scenario: namespace for 1 run of case steps.
  • step: request with response extract, validate, etc.
  • iterate: repeats an individual step by iterating through iterable.
  • request: http call (get, post, etc.) to path with parameters, data, or uploads
  • extract: extract nested data from a response into a variable available to following steps.
  • validate: check an actual value against an expected value using a comparator.
  • transform: using jmespath to shape a JSON response into a specific format.



Comparators are used by the validation phase of each step to check whether an actual value is returning as expected. See the comparisons.rigor example for more details.

  • equals
  • not equals
  • same
  • not same
  • greater than
  • less than
  • greater than or equals
  • less than or equals
  • type
  • in
  • not in
  • regex
  • subset
  • not subset
  • length
  • superset
  • not superset
  • keyset
  • not keyset
  • contains
  • not contains

Related Projects

  • Tavern is an extremely similar project that was released a little too late for us to use.
  • Pyresttest was the first library we used before deciding to roll our own testing framework.
  • Click is the library used to build out the command-line options.
  • Related is the library used for parsing the YAML test suite into an Python object model.

More Examples

More examples can be found by reviewing the tests/httpbin/ folder of this project.


The MIT License (MIT) Copyright (c) 2017 Ian Maurer, Genomoncology LLC

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