147     MixerControlsTest() : number_of_controls(0), controls(nullptr) {}  in MixerControlsTest()
156         controls = std::make_unique<const mixer_ctl *[]>(number_of_controls);  in SetUp()
157         ASSERT_NE(controls, nullptr);  in SetUp()
160             controls[i] = mixer_get_ctl_const(mixer_object, i);  in SetUp()
161             EXPECT_EQ(mixer_ctl_get_id(controls[i]), i);  in SetUp()
162             EXPECT_STRNE(mixer_ctl_get_name(controls[i]), "");  in SetUp()
163             EXPECT_NE(controls[i], nullptr);  in SetUp()
168         controls = nullptr;  in TearDown()
173     std::unique_ptr<const mixer_ctl *[]> controls;  member in tinyalsa::testing::MixerControlsTest
178         const char *name = mixer_ctl_get_name(controls[i]);  in TEST_P()
182     std::string name{mixer_ctl_get_name(controls[0])};  in TEST_P()
189         ASSERT_EQ(mixer_get_ctl(mixer_object, i), controls[i]);  in TEST_P()
198         std::string name{mixer_ctl_get_name(controls[i])};  in TEST_P()
200             ASSERT_EQ(mixer_get_ctl_by_name(mixer_object, name.c_str()), controls[i]);  in TEST_P()
209         std::string name{mixer_ctl_get_name(controls[i])};  in TEST_P()
217                 controls[i]);  in TEST_P()
231         std::string type{mixer_ctl_get_type_string(controls[i])};  in TEST_P()
242         const mixer_ctl *control = controls[i];  in TEST_P()
258         mixer_ctl_update(const_cast<mixer_ctl *>(controls[i]));  in TEST_P()
264         const mixer_ctl *control = controls[i];  in TEST_P()
266             unsigned int number_of_values = mixer_ctl_get_num_values(controls[i]);  in TEST_P()
286         const mixer_ctl *control = controls[i];  in TEST_P()
288             unsigned int number_of_values = mixer_ctl_get_num_values(controls[i]);  in TEST_P()
298                     // note: some controls are able to be written, but their values might not be  in TEST_P()
322         std::string_view name{mixer_ctl_get_name(controls[i])};  in TEST_P()
325             control = controls[i];  in TEST_P()
330         GTEST_SKIP() << "No volume control was found in the controls list.";  in TEST_P()