Add phpunit tests

tests/phpunit.bats

@@ -0,0 +1,36 @@
+DRUPAL_VERSION="${DRUPAL_VERSION:-9.4}"
+
+setup() {
+  DIR="$( cd "$( dirname "$BATS_TEST_FILENAME" )" >/dev/null 2>&1 && pwd )"
+  cd "$DIR/../" || exit
+  BREW_PREFIX="$(brew --prefix)"
+  load "${BREW_PREFIX}/lib/bats-assert/load.bash"
+}
+
+dce() {
+  docker compose exec -T php-cli "$@"
+}
+
+phpunit() {
+  dce phpunit "$@"
+}
+
+@test "Drupal unit test"  {
+  run phpunit app/core/tests/Drupal/Tests/Core/DrupalTest.php
+  assert_output --partial "OK"
+}
+
+@test "Drupal kernel test" {
+  run phpunit app/core/tests/Drupal/KernelTests/KernelTestBaseTest.php
+  assert_output --partial "OK"
+}
+
+@test "Drupal functional test" {
+  run phpunit app/core/tests/Drupal/FunctionalTests/BrowserTestBaseTest.php
+  assert_output --partial "OK"
+}
+
+@test "Drupal functional javascript test" {
+  run phpunit app/core/tests/Drupal/FunctionalJavascriptTests/BrowserWithJavascriptTest.php
+  assert_output --partial "OK"
+}