89 lines
2.7 KiB
Markdown
89 lines
2.7 KiB
Markdown
---
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title: "Testing"
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date: 2019-07-31
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weight: 3
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description: >
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How to run tests
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---
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### Unit Tests
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Unit tests are run on Travis before code is merged. To run as part of a development cycle:
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```shell
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make test
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```
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### Integration Tests
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#### The basics
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From the minikube root directory, build the binary and run the tests:
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```shell
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make integration
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```
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You may find it useful to set various options to test only a particular test against a non-default driver. For instance:
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```shell
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env TEST_ARGS="-minikube-start-args=--driver=hyperkit -test.run TestStartStop" make integration
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```
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#### Quickly iterating on a single test
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Run a single test on an active cluster:
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```shell
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make integration -e TEST_ARGS="-test.run TestFunctional/parallel/MountCmd --profile=minikube --cleanup=false"
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```
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WARNING: For this to work repeatedly, the test must be written so that it cleans up after itself.
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The `--cleanup=false` test arg ensures that the cluster will not be deleted after the test is run.
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See [main.go](https://github.com/kubernetes/minikube/blob/master/test/integration/main.go) for details.
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#### Disabling parallelism
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```shell
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make integration -e TEST_ARGS="-test.parallel=1"
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```
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#### Testing philosophy
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- Tests should be so simple as to be correct by inspection
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- Readers should need to read only the test body to understand the test
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- Top-to-bottom readability is more important than code de-duplication
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Tests are typically read with a great air of skepticism, because chances are they are being read only when things are broken.
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### Conformance Tests
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These are Kubernetes tests that run against an arbitrary cluster and exercise a wide range of Kubernetes features.
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You can run these against minikube by following these steps:
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* Clone the Kubernetes repo somewhere on your system.
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* Run `make quick-release` in the k8s repo.
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* Start up a minikube cluster with: `minikube start`.
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* Set following two environment variables:
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```shell
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export KUBECONFIG=$HOME/.kube/config
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export KUBERNETES_CONFORMANCE_TEST=y
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```
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* Run the tests (from the k8s repo):
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```shell
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go run hack/e2e.go -v --test --test_args="--ginkgo.focus=\[Conformance\]" --check-version-skew=false
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```
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To run a specific conformance test, you can use the `ginkgo.focus` flag to filter the set using a regular expression.
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The `hack/e2e.go` wrapper and the `e2e.sh` wrappers have a little trouble with quoting spaces though, so use the `\s` regular expression character instead.
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For example, to run the test `should update annotations on modification [Conformance]`, use following command:
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```shell
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go run hack/e2e.go -v --test --test_args="--ginkgo.focus=should\supdate\sannotations\son\smodification" --check-version-skew=false
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```
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