k3s/tests/integration
Derek Nola 06d81cb936
Replace deprecated ioutil package (#6230)
* Replace ioutil package
* check integration test null pointer
* Remove rotate retries

Signed-off-by: Derek Nola <derek.nola@suse.com>
2022-10-07 17:36:57 -07:00
..
certrotation Fix the typo in the test 2022-10-05 21:25:02 -07:00
custometcdargs Expand startup integration test (#6030) 2022-08-31 15:40:17 -07:00
dualstack Expand startup integration test (#6030) 2022-08-31 15:40:17 -07:00
etcdrestore Expand startup integration test (#6030) 2022-08-31 15:40:17 -07:00
etcdsnapshot Expand startup integration test (#6030) 2022-08-31 15:40:17 -07:00
localstorage Expand startup integration test (#6030) 2022-08-31 15:40:17 -07:00
secretsencryption Replace deprecated ioutil package (#6230) 2022-10-07 17:36:57 -07:00
startup Expand startup integration test (#6030) 2022-08-31 15:40:17 -07:00
Dockerfile.test Bump golang to 1.18.1 2022-05-11 14:39:07 -07:00
integration.go Replace deprecated ioutil package (#6230) 2022-10-07 17:36:57 -07:00
README.md Remove codespell from Drone, add to GH Actions (#6004) 2022-08-18 09:21:56 -07:00
test-runner.sh Creation of K3s integration test Sonobuoy plugin (#3931) 2021-08-30 08:27:59 -07:00

Integration Tests

Integration tests should be used to test a specific functionality of k3s that exists across multiple Go packages, either via exported function calls, or more often, CLI commands. Integration tests should be used for "black box" testing.

Framework

All integration tests in K3s follow a Behavior Diven Development (BDD) style. Specifically, K3s uses Ginkgo and Gomega to drive the tests.
To generate an initial test, the command ginkgo bootstrap can be used.

To facilitate K3s CLI testing, see tests/util/cmd.go helper functions.

Format

All integration tests should be placed under tests/integration/<TEST_NAME>.
All integration test files should be named: <TEST_NAME>_int_test.go.
All integration test functions should be named: Test_Integration<TEST_NAME>.
See the local storage test as an example.

Running

Integration tests can be run with no k3s cluster present, each test will spin up and kill the appropriate k3s server it needs.
Note: Integration tests must be run as root, prefix the commands below with sudo -E env "PATH=$PATH" if a sudo user.

go test ./tests/integration/... -run Integration

Additionally, to generate JUnit reporting for the tests, the Ginkgo CLI is used

ginkgo --junit-report=result.xml ./tests/integration/...

Integration tests can be run on an existing single-node cluster via compile time flag, tests will skip if the server is not configured correctly.

go test -ldflags "-X 'github.com/k3s-io/k3s/tests/integration.existingServer=True'" ./tests/integration/... -run Integration

Integration tests can also be run via a Sonobuoy plugin on an existing single-node cluster.

./scripts/build-tests-sonobuoy
sudo KUBECONFIG=/etc/rancher/k3s/k3s.yaml sonobuoy run --plugin ./dist/artifacts/k3s-int-tests.yaml

Check the sonobuoy status and retrieve results

sudo KUBECONFIG=/etc/rancher/k3s/k3s.yaml sonobuoy status
sudo KUBECONFIG=/etc/rancher/k3s/k3s.yaml sonobuoy retrieve
sudo KUBECONFIG=/etc/rancher/k3s/k3s.yaml sonobuoy results <TAR_FILE_FROM_RETRIEVE>