ci: split UI tests (#1460)

**Issue number:** N/A

### PR Type

**What kind of change does this PR introduce?**
* [ ] Feature
* [ ] Bug Fix
* [ ] Refactoring (no functional or API changes)
* [ ] Documentation Update
* [x] Maintenance (dependency updates, CI, etc.)

## Summary

### Changes

Splitting UI tests in GitHub Actions pipeline.

According to the run from this PR - the whole pipeline time dropped 50%.

I checked the total amount of test cases run and it is the same as in
the previous approach.

### User experience

N/A

## Checklist

If an item doesn't apply to your changes, leave it unchecked.

* [x] I have performed a self-review of this change according to the
[development
guidelines](https://splunk.github.io/addonfactory-ucc-generator/contributing/#development-guidelines)
* [ ] Tests have been added/modified to cover the changes [(testing
doc)](https://splunk.github.io/addonfactory-ucc-generator/contributing/#build-and-test)
* [ ] Changes are documented
* [x] PR title and description follows the [contributing
principles](https://splunk.github.io/addonfactory-ucc-generator/contributing/#pull-requests)

.github/workflows/build-test-release.yml

@@ -227,7 +227,7 @@ jobs:
           path: Splunk_TA_UCCExample*.tar.gz
 
   test-ui:
-    name: test-ui Splunk ${{ matrix.splunk.version }} -m ${{ matrix.test-mark }}
+    name: test-ui Splunk ${{ matrix.splunk.version }} -group ${{ matrix.test-group }}
     runs-on: ubuntu-22.04
     permissions:
       id-token: write
@@ -243,14 +243,17 @@ jobs:
       fail-fast: false
       matrix:
         splunk: ${{ fromJson(needs.meta.outputs.matrix_supportedSplunk) }}
-        test-mark:
-          - "logging"
-          - "proxy"
-          - "account"
-          - "custom"
-          - "alert"
-          - "input"
-          - "configuration"
+        test-group:
+          - "1"
+          - "2"
+          - "3"
+          - "4"
+          - "5"
+          - "6"
+          - "7"
+          - "8"
+          - "9"
+          - "10"
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-python@v5
@@ -272,16 +275,16 @@ jobs:
           ./scripts/run_splunk.sh ${{ matrix.splunk.version }}
           until curl -Lsk "https://localhost:8088/services/collector/health" &>/dev/null ; do echo -n "Waiting for HEC-" && sleep 5 ; done
         timeout-minutes: 5
-      - run: poetry run pytest tests/ui -m "${{ matrix.test-mark }}" --headless --junitxml=test-results/junit.xml
+      - run: poetry run pytest tests/ui --test-group-count 10 --test-group ${{ matrix.test-group }} --test-group-random-seed 123456 --headless --junitxml=test-results/junit.xml
       - uses: actions/upload-artifact@v4
         if: success() || failure()
         with:
-          name: test-results-ui-${{ matrix.splunk.version }}-${{ matrix.test-mark }}
+          name: test-results-ui-${{ matrix.splunk.version }}-${{ matrix.test-group }}
           path: test-results/*
       - uses: dorny/test-reporter@v1
         if: success() || failure()
         with:
-          name: test-report-ui-${{ matrix.splunk.version }}-${{ matrix.test-mark }}
+          name: test-report-ui-${{ matrix.splunk.version }}-${{ matrix.test-group }}
           path: "test-results/*.xml"
           reporter: java-junit
 

pyproject.toml

@@ -68,6 +68,7 @@ mkdocs-print-site-plugin = "^2.3.6"
 pytest-cov = "^4.0.0"
 covdefaults = "^2.3.0"
 xmldiff = "^2.6.3"
+pytest-split-tests = "^1.1.0"
 
 [tool.poetry.scripts]
 ucc-gen="splunk_add_on_ucc_framework.main:main"