docs: add docs for running test on kubernetes

Author: nirajacharya2

docs/ocis/development/testing.md

@@ -532,7 +532,7 @@ WEB_UI_CONFIG_FILE="tests/config/local/ocis-web.json" \
 ocis/bin/ocis server
 ```
 
-The first oCIS instance should be available at: https://localhost:9200/
+The first oCIS instance should be available at: <https://localhost:9200/>
 
 ### Setup Second oCIS Instance
 
@@ -552,7 +552,7 @@ source tests/config/local/.env-federation && ocis/bin/ocis init
 ocis/bin/ocis server
 ```
 
-The second oCIS instance should be available at: https://localhost:10200/
+The second oCIS instance should be available at: <https://localhost:10200/>
 
 {{< hint info >}}
 To enable ocm in the web interface, you need to set the following envs:
@@ -589,6 +589,38 @@ The sample `fontsMap.json` file is located in `tests/config/drone/fontsMap.json`
 }
 ```
 
+## Running Test on helm setup
+
+Clone `ocis-charts` repo from <https://github.com/owncloud/ocis-charts/>
+
+Install [k3d](https://k3d.io/stable/#install-script)
+
+1. Setup Basicauth
+
+```
+# Enable basic auth in proxy deployment
+sed -i '/- name: PROXY_HTTP_ADDR/i\            - name: PROXY_ENABLE_BASIC_AUTH\n              value: "true"' ./charts/ocis/templates/proxy/deployment.yaml
+# copy authbasic service
+cp -r ./tests/config/drone/k3s/authbasic path-to-ocis-chart/charts/ocis/templates/
+sed -i '/{{- $_ := set .scope "appNameAuthMachine" "authmachine" -}}/a\  {{- $_ := set .scope "appNameAuthBasic" "authbasic" -}}' ./charts/ocis/templates/_common/_tplvalues.tpl
+```
+
+2. Install charts using k3d
+
+```
+k3d cluster create drone --api-port ocis.owncloud.test:33199 -p '80:80@loadbalancer' -p '443:443@loadbalancer' --k3s-arg '--tls-san=k3d@server:*' --k3s-arg '--disable=metrics-server@server:*'
+k3d kubeconfig get drone > kubeconfig.yaml
+chmod 0600 kubeconfig.yaml
+kubectl create configmap coredns-custom --namespace kube-system --from-literal='rewritehost.override=rewrite name exact ocis.owncloud.test host.k3d.internal'
+kubectl -n kube-system rollout restart deployment coredns
+make helm-install-atomic
+```
+
+3. Run test
+```
+K3D=true TEST_SERVER_URL="ocis.owncloud.test" make test-acceptance-api BEHAT_FEATURE=tests/acceptance/features/coreApiSharePublicLink2/enforcePasswordPublicLink.feature:148
+```
+
 ## Generating Code Coverage Report by Running Acceptance Tests
 
 To find out what oCIS code is covered by the API tests, first create a debug build of oCIS.
@@ -623,4 +655,4 @@ You can also view the report in a web UI using the following command.
 go tool cover -html=cov.txt
 ```
 
-This command should open a browser with the code report.
+This command should open a browser with the code report.