'use strict';
const test_desc = 'Calls to FUNCTION_NAME should return the same object.';

bluetooth_bidi_test(
    () =>
        getHealthThermometerService()
            .then(({service}) => Promise.all([
              service.CALLS(
                  [getCharacteristic('measurement_interval') |
                   getCharacteristics() |
                   getCharacteristics('measurement_interval')[UUID]]),
              service.PREVIOUS_CALL
            ]))
            .then(
                ([characteristics_first_call, characteristics_second_call]) => {
                  // Convert to arrays if necessary.
                  characteristics_first_call =
                      [].concat(characteristics_first_call);
                  characteristics_second_call =
                      [].concat(characteristics_second_call);

                  let first_call_set = new Set(characteristics_first_call);
                  assert_equals(
                      characteristics_first_call.length, first_call_set.size);
                  let second_call_set = new Set(characteristics_second_call);
                  assert_equals(
                      characteristics_second_call.length, second_call_set.size);

                  characteristics_first_call.forEach(characteristic => {
                    assert_true(second_call_set.has(characteristic));
                  });
                }),
    test_desc);
