github.com/codeclimate/test-reporter

cc-test-reporter

Report information about your CI builds to Code Climate.

Installation & Usage

Most CI systems allow configuration of commands to run as part of setup, before, and after a test build. Using Circle CI as an example:

machine:
  environment:
    CC_TEST_REPORTER_ID: ...

dependencies:
  post:
    - curl -L https://codeclimate.com/downloads/test-reporter/test-reporter-latest-linux-amd64 > ./cc-test-reporter
    - chmod +x ./cc-test-reporter

test:
  pre:
    - ./cc-test-reporter before-build

  post:
    - ./cc-test-reporter after-build --exit-code $EXIT_CODE

Where:

• $EXIT_CODE should be the exit code of your test suite process. Some CI system expose this as an environment variable; for others, you may need to manually capture $? to provide it to after-build later. Providing this will prevent sending test coverage results for failed tests.

Code Climate: Enterprise

To report coverage to your locally-hosted Code Climate: Enterprise instance, export the CC_TEST_REPORTER_COVERAGE_ENDPOINT variable, or pass the --coverage-endpoint option to after-build.

CC_TEST_REPORTER_COVERAGE_ENDPOINT=https://codeclimate.my-domain.com/test_reports

Low-level Usage

The test reporter is implemented as a composition of lower-level commands, which may themselves be useful. See the man-pages for details of these commands.

Parallel Tests

Code Climate supports parallel test setups using sub-commands provided by the test reporter. Specifically, the test reporter has sub-commands to:

1. format partial results (format-coverage)
2. sum partial results into a single result (sum-coverage) and
3. upload the single result to Code Climate (upload-coverage)

To make use of these commands, parallel test support requires:

1. the ability to run commands after each batch of tests has completed (most CI systems support this)
2. the ability to run commands after all tests have completed (most CI systems support this)
3. uploading and downloading partial test coverage data to/from shared storage (using AWS S3, for example)

For example:

1. After each batch of tests:

   ./cc-test-reporter format-coverage --output "coverage/codeclimate.$N.json"
   aws s3 sync coverage/ "s3://my-bucket/coverage/$SHA"
   

   Where:

   • $N should be a unique identifier for that batch of tests
   • $SHA should be the commit for which the coverage was generated; you can use an existing, CI-provided variable or ./cc-test-reporter env to infer $GIT_COMMIT_SHA and use that.

2. After all tests:

   aws s3 sync "s3://my-bucket/coverage/$SHA" coverage/
   cc-test-reporter sum-coverage --output - --parts $PARTS coverage/codeclimate.*.json | \
     cc-test-reporter upload-coverage --input -
   

   Where:

   • $PARTS should be the number of payloads to sum.

Multiple Suites

Coverage from multiple suites can be sent to Code Climate by aggregating each suite's results into one final report.

1. After each test suite, run:

./cc-test-reporter format-coverage --output coverage/codeclimate.$SUITE.json

1. After all test suites, run:

./cc-test-reporter sum-coverage coverage/codeclimate.*.json | \
  ./cc-test-reporter upload-coverage

Copyright

See the LICENSE.