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testAudioClock.cpp
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/*
* Copyright 2022 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* Test FlowGraph
*/
#
include
"
math.h
"
#
include
"
stdio.h
"
#
include
<
gtest/gtest.h
>
#
include
<
oboe/Oboe.h
>
using
namespace
oboe
;
#
define
NANOS_PER_MICROSECOND
((
int64_t
)
1000
)
constexpr
int64_t
kSleepTimeMicroSec
=
50
*
1000
;
constexpr
double
kMaxLatenessMicroSec
=
20
*
1000
;
TEST
(TestAudioClock, GetNanosecondsMonotonic) {
int64_t
startNanos =
AudioClock::getNanoseconds
(
CLOCK_MONOTONIC
);
usleep
(
kSleepTimeMicroSec
);
int64_t
endNanos =
AudioClock::getNanoseconds
(
CLOCK_MONOTONIC
);
ASSERT_GE
(endNanos, startNanos +
kSleepTimeMicroSec
*
kNanosPerMicrosecond
);
ASSERT_LT
(endNanos, startNanos + ((
kSleepTimeMicroSec
+
kMaxLatenessMicroSec
)
*
kNanosPerMicrosecond
));
}
TEST
(TestAudioClock, GetNanosecondsRealtime) {
int64_t
startNanos =
AudioClock::getNanoseconds
(
CLOCK_REALTIME
);
usleep
(
kSleepTimeMicroSec
);
int64_t
endNanos =
AudioClock::getNanoseconds
(
CLOCK_REALTIME
);
ASSERT_GE
(endNanos, startNanos +
kSleepTimeMicroSec
*
kNanosPerMicrosecond
);
ASSERT_LT
(endNanos, startNanos + ((
kSleepTimeMicroSec
+
kMaxLatenessMicroSec
)
*
kNanosPerMicrosecond
));
}
TEST
(TestAudioClock, SleepUntilNanoTimeMonotonic) {
int64_t
startNanos =
AudioClock::getNanoseconds
(
CLOCK_MONOTONIC
);
AudioClock::sleepUntilNanoTime
(startNanos +
kSleepTimeMicroSec
*
kNanosPerMicrosecond
,
CLOCK_MONOTONIC
);
int64_t
endNanos =
AudioClock::getNanoseconds
(
CLOCK_MONOTONIC
);
ASSERT_GE
(endNanos, startNanos +
kSleepTimeMicroSec
*
kNanosPerMicrosecond
);
ASSERT_LT
(endNanos, startNanos + ((
kSleepTimeMicroSec
+
kMaxLatenessMicroSec
)
*
kNanosPerMicrosecond
));
}
TEST
(TestAudioClock, SleepUntilNanoTimeRealtime) {
int64_t
startNanos =
AudioClock::getNanoseconds
(
CLOCK_REALTIME
);
AudioClock::sleepUntilNanoTime
(startNanos +
kSleepTimeMicroSec
*
kNanosPerMicrosecond
,
CLOCK_REALTIME
);
int64_t
endNanos =
AudioClock::getNanoseconds
(
CLOCK_REALTIME
);
ASSERT_GE
(endNanos, startNanos +
kSleepTimeMicroSec
*
kNanosPerMicrosecond
);
ASSERT_LT
(endNanos, startNanos + ((
kSleepTimeMicroSec
+
kMaxLatenessMicroSec
)
*
kNanosPerMicrosecond
));
}
TEST
(TestAudioClock, SleepForNanosMonotonic) {
int64_t
startNanos =
AudioClock::getNanoseconds
(
CLOCK_MONOTONIC
);
AudioClock::sleepForNanos
(
kSleepTimeMicroSec
*
kNanosPerMicrosecond
,
CLOCK_MONOTONIC
);
int64_t
endNanos =
AudioClock::getNanoseconds
(
CLOCK_MONOTONIC
);
ASSERT_GE
(endNanos, startNanos +
kSleepTimeMicroSec
*
kNanosPerMicrosecond
);
ASSERT_LT
(endNanos, startNanos + ((
kSleepTimeMicroSec
+
kMaxLatenessMicroSec
)
*
kNanosPerMicrosecond
));
}
TEST
(TestAudioClock, SleepForNanosRealtime) {
int64_t
startNanos =
AudioClock::getNanoseconds
(
CLOCK_REALTIME
);
AudioClock::sleepForNanos
(
kSleepTimeMicroSec
*
kNanosPerMicrosecond
,
CLOCK_REALTIME
);
int64_t
endNanos =
AudioClock::getNanoseconds
(
CLOCK_REALTIME
);
ASSERT_GE
(endNanos, startNanos +
kSleepTimeMicroSec
*
kNanosPerMicrosecond
);
ASSERT_LT
(endNanos, startNanos + ((
kSleepTimeMicroSec
+
kMaxLatenessMicroSec
)
*
kNanosPerMicrosecond
));
}
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