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Transformer: add a setter for the looper

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PiperOrigin-RevId: 346270250
This commit is contained in:
kimvde 2020-12-08 08:58:29 +00:00 committed by Ian Baker
parent 93b3f43ed2
commit d148db5725
1 changed files with 38 additions and 2 deletions
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40
robolectricutils/src/main/java/com/google/android/exoplayer2/robolectric/RobolectricUtil.java
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@ -15,6 +15,8 @@
*/
package com.google.android.exoplayer2.robolectric;
import static org.robolectric.Shadows.shadowOf;
import android.os.Looper;
import com.google.android.exoplayer2.util.Clock;
import com.google.android.exoplayer2.util.ConditionVariable;
@ -69,6 +71,8 @@ public final class RobolectricUtil {
* Runs tasks of the main Robolectric {@link Looper} until the {@code condition} returns {@code
* true}.
*
* <p>Must be called on the main test thread.
*
* @param condition The condition.
* @param timeoutMs The timeout in milliseconds.
* @param clock The {@link Clock} to measure the timeout.
@ -76,15 +80,47 @@ public final class RobolectricUtil {
*/
public static void runMainLooperUntil(Supplier<Boolean> condition, long timeoutMs, Clock clock)
throws TimeoutException {
if (Looper.myLooper() != Looper.getMainLooper()) {
runLooperUntil(Looper.getMainLooper(), condition, timeoutMs, clock);
}
/**
* Runs tasks of the {@code looper} until the {@code condition} returns {@code true}.
*
* <p>Must be called on the thread corresponding to the {@code looper}.
*
* @param looper The {@link Looper}.
* @param condition The condition.
* @throws TimeoutException If the {@link #DEFAULT_TIMEOUT_MS} is exceeded.
*/
public static void runLooperUntil(Looper looper, Supplier<Boolean> condition)
throws TimeoutException {
runLooperUntil(looper, condition, DEFAULT_TIMEOUT_MS * 1000000, Clock.DEFAULT);
}
/**
* Runs tasks of the {@code looper} until the {@code condition} returns {@code true}.
*
* <p>Must be called on the thread corresponding to the {@code looper}.
*
* @param looper The {@link Looper}.
* @param condition The condition.
* @param timeoutMs The timeout in milliseconds.
* @param clock The {@link Clock} to measure the timeout.
* @throws TimeoutException If the {@code timeoutMs timeout} is exceeded.
*/
public static void runLooperUntil(
Looper looper, Supplier<Boolean> condition, long timeoutMs, Clock clock)
throws TimeoutException {
if (Looper.myLooper() != looper) {
throw new IllegalStateException();
}
ShadowLooper shadowLooper = shadowOf(looper);
long timeoutTimeMs = clock.currentTimeMillis() + timeoutMs;
while (!condition.get()) {
if (clock.currentTimeMillis() >= timeoutTimeMs) {
throw new TimeoutException();
}
ShadowLooper.runMainLooperOneTask();
shadowLooper.runOneTask();
}
}
}