failure.assertHasCause("Only managed model instances can be set as property 'operatingSystem' of class 'Platform'")
    }

    def "cannot use value type as subject of void model rule"() {
        when:
        buildScript '''
            class Rules extends RuleSource {
              @Model
              void s(String s) {}
            }

 * limitations under the License.
 */

package gradlebuild.binarycompatibility

import spock.lang.Specification
import spock.lang.Subject
import spock.lang.TempDir

class AcceptedApiChangesJsonFileManagerTest extends Specification {

    @TempDir
    File temporaryFolder

    @Subject AcceptedApiChangesJsonFileManager jsonFileManager = new AcceptedApiChangesJsonFileManager()

    def jsonFile

    def setup() {

        failure.assertHasCause("Attempt to modify a read only view of model element 'person' of type 'Person' given to rule RulePlugin#name")
    }

    def "mutating subject of a validate rule is not allowed"() {
        when:
        buildScript '''
            @Managed
            interface Person {
                String getName()
                void setName(String name)
            }

        '''

        then:
        fails "taskWithUnboundRuleSourceApplied"

        and:
        failureCauseContains '''
  UnboundRuleSource#unboundRule(String, Integer, String)
    subject:
      - <no path> String (parameter 1) [*]
          scope: tasks.taskWithUnboundRuleSourceApplied
    inputs:
      - <no path> Integer (parameter 2) [*]

        '''

        then:
        succeeds "echo"

        and:
        output.contains("name: name, value: value")
    }

    def "can depend on managed super type as input and subject"() {
        when:
        buildScript '''
            @Managed
            interface Named {
                String getName()
                void setName(String name)
            }