Add iOS Testing Step (#31)

* Add step to run tests on iOS

* Allow xcodebuild command to be overwritten

* Rename action and actually use it

* Use macOS 15 runners

.github/workflows/run-unit-tests.yml

@@ -57,6 +57,11 @@ on:
  required: false
  default: false
  description: "Set to 'true' to build with the Static Linux SDK to test MUSL compatibility. Defaults to 'false'."
+ ios_scheme_name:
+ type: string
+ required: false
+ default: ''
+ description: "Set to the scheme name in Xcode to run tests on iOS. Defaults to '' which won't run any tests."
  extra_flags:
  type: string
  required: false
@@ -67,6 +72,11 @@ on:
  required: false
  default: ''
  description: "Additional 'swift build' flags to be applied on when compiling with MUSL."
+ ios_xcodebuild_action:
+ type: string
+ required: false
+ default: 'test'
+ description: "Action to pass to xcodebuild when running iOS tests. Defaults to 'test'. Set to '' to just compile and not run tests."
  secrets:
  CODECOV_TOKEN:
  required: false
@@ -78,6 +88,8 @@ env:
  WARNINGS_AS_ERRORS: ${{ inputs.warnings_as_errors && '-Xswiftc -warnings-as-errors' || '' }}
  TEST_FILTER: ${{ inputs.test_filter != '' && format('--filter={0}', inputs.test_filter) || '' }}
  WITH_COVERAGE: ${{ inputs.with_coverage && '--enable-code-coverage' || '' }}
+ IOS_SCHEME_NAME: ${{ inputs.ios_scheme_name }}
+ IOS_XCODEBUILD_ACTION: ${{ inputs.ios_xcodebuild_action }}
 
 jobs:
  api-breakage:
@@ -224,6 +236,19 @@ jobs:
  run: |
  swift test ${PACKAGE_ROOT} ${WITH_TSAN} ${TEST_FILTER} ${EXTRA_FLAGS}
 
+ ios-unit:
+ if: ${{ !(github.event.pull_request.draft || false) && inputs.ios_scheme_name != '' }}
+ runs-on: macos-15
+ steps:
+ - name: Select appropriate Xcode version
+ uses: maxim-lobanov/setup-xcode@v1
+ with:
+ xcode-version: latest-stable
+ - name: Check out code
+ uses: actions/checkout@v4
+ - name: Run iOS Tests
+ run: xcodebuild ${IOS_XCODEBUILD_ACTION} -scheme ${IOS_SCHEME_NAME} -destination 'platform=iOS Simulator,OS=18.0,name=iPhone 16 Pro'
+
  lint:
  if: ${{ inputs.with_linting }}
  runs-on: ubuntu-latest