Add swift-testing support to the xctest runner

apple/testing/default_runner/ios_xctestrun_runner.template.sh

@@ -544,8 +544,15 @@ if [[ $parallel_testing_enabled == true ]]; then
 else
   # Assume the final 'Executed N tests' or 'Executed 1 test' is the
   # total execution count for the test bundle.
-  test_target_execution_count=$(grep -e "Executed [[:digit:]]\{1,\} tests*," "$testlog" | tail -n1)
-  if echo "$test_target_execution_count" | grep -q -e "Executed 0 tests, with 0 failures"; then
+  xctest_target_execution_count=$(grep -e "Executed [[:digit:]]\{1,\} tests*," "$testlog" | tail -n1)
+  swift_testing_target_execution_count=$(grep -e "Test run with [[:digit:]]\{1,\} test" "$testlog" | tail -n1 || true)
+  if echo "$xctest_target_execution_count" | grep -q -e "Executed 0 tests, with 0 failures" && \
+     [ -z "$swift_testing_target_execution_count" ] ; then
+    no_tests_ran=true
+  fi
+
+  if echo "$xctest_target_execution_count" | grep -q -e "Executed 0 tests, with 0 failures" && \
+     echo "$swift_testing_target_execution_count" | grep -q -e "Test run with 0 tests" ; then
     no_tests_ran=true
   fi
 fi

test/BUILD

@@ -241,6 +241,16 @@ apple_shell_test(
     tags = common.skip_ci_tags,
 )
 
+apple_shell_test(
+    name = "ios_xctest_swift_testing_runner_unit_test_17.x",
+    size = "large",
+    src = "ios_xctest_swift_testing_runner_unit_test_17.x.sh",
+    args = [
+        "--ios_multi_cpus=sim_arm64,x86_64",
+    ],
+    tags = common.skip_ci_tags,
+)
+
 apple_shell_test(
     name = "ios_test_runner_ui_test",
     size = "large",

test/ios_xctest_swift_testing_runner_unit_test_17.x.sh

@@ -0,0 +1,170 @@
+#!/bin/bash
+
+# Copyright 2018 The Bazel Authors. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Integration tests for iOS test runner.
+
+MIN_OS_IOS="17.0.0"
+
+function set_up() {
+  mkdir -p ios
+}
+
+function tear_down() {
+  rm -rf ios
+}
+
+function create_sim_runners() {
+  cat > ios/BUILD <<EOF
+load(
+    "@build_bazel_rules_apple//apple:ios.bzl",
+    "ios_application",
+    "ios_unit_test"
+)
+load("@build_bazel_rules_swift//swift:swift.bzl",
+     "swift_library"
+)
+load(
+    "@build_bazel_rules_apple//apple/testing/default_runner:ios_xctestrun_runner.bzl",
+    "ios_xctestrun_runner"
+)
+
+ios_xctestrun_runner(
+    name = "ios_x86_64_sim_runner_17",
+    device_type = "iPhone 11",
+    os_version = "17.2",
+)
+EOF
+}
+
+function create_swift_testing_tests() {
+  cat > ios/passing_swift_testing_test.swift <<EOF
+import Testing
+import XCTest
+
+@Suite("Simple passing swift test suite")
+class SimpleSwiftTestingTest {
+  @Test
+  func testCaseOne() {
+    let one = 1
+    #expect(one == 1, "this test passes")
+  }
+
+  @Test
+  func testCaseTwo() {
+    let two = 2
+    #expect(two == 2, "this test passes")
+  }
+}
+EOF
+
+cat > ios/failing_swift_testing_test.swift <<EOF
+import Testing
+import XCTest
+
+@Suite("Simple failing swift test suite")
+class SimpleSwiftTestingTest {
+  @Test
+  func testCaseOne() {
+
+    let one = 1
+    #expect(one == 2, "this test fails")
+  }
+}
+EOF
+
+
+  cat > ios/empty_swift_testing_test.swift <<EOF
+import Testing
+import XCTest
+
+@Suite("Simple empty swift test suite")
+class SimpleSwiftTestingTest {
+
+}
+EOF
+
+  cat >> ios/BUILD <<EOF
+swift_library(
+  name = "passing_swift_testing_test_lib",
+  testonly = True,
+  srcs = ["passing_swift_testing_test.swift"],
+)
+
+swift_library(
+  name = "failing_swift_testing_test_lib",
+  testonly = True,
+  srcs = ["failing_swift_testing_test.swift"],
+)
+
+swift_library(
+  name = "empty_swift_testing_test_lib",
+  testonly = True,
+  srcs = ["empty_swift_testing_test.swift"],
+)
+
+ios_unit_test(
+  name = "PassingSwiftTestingTest",
+  deps = [":passing_swift_testing_test_lib"],
+  minimum_os_version = "${MIN_OS_IOS}",
+  runner = ":ios_x86_64_sim_runner_17",
+)
+
+ios_unit_test(
+  name = "FailingSwiftTestingTest",
+  deps = [":failing_swift_testing_test_lib"],
+  minimum_os_version = "${MIN_OS_IOS}",
+  runner = ":ios_x86_64_sim_runner_17",
+)
+
+ios_unit_test(
+  name = "EmptySwiftTestingTest",
+  deps = [":empty_swift_testing_test_lib"],
+  minimum_os_version = "${MIN_OS_IOS}",
+  runner = ":ios_x86_64_sim_runner_17",
+)
+EOF
+}
+
+function do_ios_test() {
+  do_test ios "--test_output=all" "--spawn_strategy=local" "$@"
+}
+
+function test_ios_swift_testing_pass() {
+  create_sim_runners
+  create_swift_testing_tests
+  do_ios_test //ios:PassingSwiftTestingTest || fail "should pass"
+  expect_log "Suite \"Simple passing swift test suite\" passed"
+  expect_log "Test run with 2 tests passed after"
+}
+
+function test_ios_swift_testing_fail() {
+  create_sim_runners
+  create_swift_testing_tests
+  (! do_ios_test //ios:FailingSwiftTestingTest) || fail "should not pass"
+  expect_log "Suite \"Simple failing swift test suite\" failed after"
+  expect_log "Test run with 1 test failed after"
+}
+
+function test_ios_swift_testing_empty() {
+  create_sim_runners
+  create_swift_testing_tests
+  (! do_ios_test //ios:EmptySwiftTestingTest) || fail "should not pass"
+  expect_log "Suite \"Simple empty swift test suite\" passed"
+  expect_log "Test run with 0 tests passed after"
+  expect_log "error: no tests were executed, is the test bundle empty?"
+}
+
+run_suite "ios_unit_test with iOS 17.x test runner bundling tests"