// META: script=/resources/testdriver.js
// META: script=/resources/testdriver-vendor.js
// META: script=/bluetooth/resources/bluetooth-test.js
// META: script=/bluetooth/resources/bluetooth-fake-devices.js
// Generated by //third_party/WebKit/LayoutTests/bluetooth/generate.py
'use strict';
const test_desc = 'Calls to getCharacteristics should return the same object.';

bluetooth_test(
    () =>
        getHealthThermometerService()
            .then(({service}) => Promise.all([
              service.getCharacteristics('measurement_interval'),
              service.getCharacteristics('measurement_interval')
            ]))
            .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);