runc Integration Tests

Integration tests provide end-to-end testing of runc.

Note that integration tests do not replace unit tests.

As a rule of thumb, code should be tested thoroughly with unit tests. Integration tests on the other hand are meant to test a specific feature end to end.

Integration tests are written in bash using the bats (Bash Automated Testing System) framework.

Running integration tests

The easiest way to run integration tests is with Docker:

make integration

Alternatively, you can run integration tests directly on your host through make:

sudo make localintegration

Or you can just run them directly using bats

sudo bats tests/integration

To run a single test bucket:

make integration TESTPATH="/checkpoint.bats"

To run them on your host, you need to set up a development environment plus bats (Bash Automated Testing System).

For example:

cd ~/go/src/github.com
git clone https://github.com/bats-core/bats-core.git
cd bats-core
./install.sh /usr/local

Note: There are known issues running the integration tests using devicemapper as a storage driver, make sure that your docker daemon is using aufs if you want to successfully run the integration tests.

Writing integration tests

helper functions are provided in order to facilitate writing tests.

#!/usr/bin/env bats

# This will load the helpers.
load helpers

# setup is called at the beginning of every test.
function setup() {
  setup_busybox
}

# teardown is called at the end of every test.
function teardown() {
  teardown_bundle
}

@test "this is a simple test" {
  runc run containerid
  # "The runc macro" automatically populates $status, $output and $lines.
  # Please refer to bats documentation to find out more.
  [ "$status" -eq 0 ]

  # check expected output
  [[ "${output}" == *"Hello"* ]]
}