Deflake HealthConnectThreadSchedulerTest

- Decrease the delay used in a test to reduce the test time
- Change the assertion to be isAtLeast instead of isGreaterThan to account for the possibility of the task starting exactly after the time period.
- Change the assertion to be isAtMost instead of isLessThan to account for the case when it take exactly that long to finish.

Bug: 415847542
Test: unit test
Change-Id: Ic7e6477e5744f7cee3dfb0b381bcbc6bc49ff95c
Flag: TEST_ONLY
diff --git a/tests/unittests/src/com/android/server/healthconnect/HealthConnectThreadSchedulerTest.java b/tests/unittests/src/com/android/server/healthconnect/HealthConnectThreadSchedulerTest.java
index eb7455f..8bbad16 100644
--- a/tests/unittests/src/com/android/server/healthconnect/HealthConnectThreadSchedulerTest.java
+++ b/tests/unittests/src/com/android/server/healthconnect/HealthConnectThreadSchedulerTest.java
@@ -146,7 +146,7 @@
 
     @Test
     public void testSchedulePassiveTrackerTaskWithDelay() throws Exception {
-        long delayMillis = 30000;
+        long delayMillis = 3000;
         Instant startTime = Instant.now();
 
         ScheduledFuture<?> future =
@@ -156,9 +156,9 @@
         future.get(); // Wait for the task to run and complete
 
         long durationMillis = ChronoUnit.MILLIS.between(startTime, Instant.now());
-        assertThat(durationMillis).isGreaterThan(delayMillis); // Task should start after the delay
+        assertThat(durationMillis).isAtLeast(delayMillis - 1000); // Task should start after a delay
         assertThat(durationMillis)
-                .isLessThan(
+                .isAtMost(
                         delayMillis
                                 + 3000); // Task shouldn't take too long to finish after the delay
     }