connection.newBuild().forTasks('test').addProgressListener(events, EnumSet.allOf(OperationType)).run()
        }

        then: "all progress events must be forwarded to the attached listener"
        events.assertHasSingleTree()
        !events.buildOperations.empty
        !events.tests.empty
        !events.tasks.empty
    }

    def "register for subset of progress events"() {
        given:
        goodCode()

    }

    /**
     * Asserts that the events form exactly one well-formed trees of operations.
     */
    void assertHasSingleTree() {
        assertHasZeroOrMoreTrees()
        assert !operations.empty
        assert operations[0].descriptor.parent == null

        operations.tail().each { assert it.descriptor.parent != null }
    }