Upgrade threadly to 6.0 and expand unit tests

There was some additional unit test coverage we got just from the use of these classes in the testing of the threadly project.
This adds a couple test cases to make sure we are still having great coverage in this project in isolation too.

.classpath

@@ -8,6 +8,6 @@
 		</attributes>
 	</classpathentry>
 	<classpathentry kind="con" path="org.eclipse.jdt.junit.JUNIT_CONTAINER/4"/>
-	<classpathentry kind="lib" path="build/dependencies/threadly-5.42.jar"/>
+	<classpathentry kind="lib" path="build/dependencies/threadly-6.0.jar"/>
 	<classpathentry kind="output" path="build/classes/bin"/>
 </classpath>

gradle.properties

@@ -1,5 +1,5 @@
 group = org.threadly
-version = 0.1
+version = 1.0-SNAPSHOT
 org.gradle.parallel = false
 
-threadlyVersion = 5.42
+threadlyVersion = 6.0

src/test/java/org/threadly/ThreadlyTester.java

@@ -101,12 +101,12 @@ public enum TestLoad {
 
     switch (TEST_PROFILE) {
       case Speedy:
-        TEST_QTY = 2;
+        TEST_QTY = 10;
         CYCLE_COUNT = 2;
         DELAY_TIME = 10;
         break;
       case Normal:
-        TEST_QTY = 5;
+        TEST_QTY = 20;
         CYCLE_COUNT = 10;
         DELAY_TIME = 10;
         break;

src/test/java/org/threadly/test/concurrent/TestableSchedulerTest.java

@@ -14,7 +14,9 @@
 import org.junit.Before;
 import org.junit.Test;
 import org.threadly.ThreadlyTester;
+import org.threadly.concurrent.CentralThreadlyPool;
 import org.threadly.concurrent.DoNothingRunnable;
+import org.threadly.concurrent.TaskPriority;
 import org.threadly.util.Clock;
 import org.threadly.util.ExceptionHandler;
 import org.threadly.util.StackSuppressedRuntimeException;
@@ -56,6 +58,66 @@ public void isShutdownTest() {
     assertFalse(scheduler.isShutdown());
   }
 
+  @Test
+  public void getDefaultPriorityTest() {
+    assertEquals(TaskPriority.High, scheduler.getDefaultPriority());
+    assertEquals(TaskPriority.Low, new TestableScheduler(TaskPriority.Low, 100).getDefaultPriority());
+  }
+
+  @Test
+  public void getMaxWaitForLowPriorityTest() {
+    assertEquals(100, new TestableScheduler(TaskPriority.Low, 100).getMaxWaitForLowPriority());
+  }
+
+  @Test
+  public void getQueuedTaskCountTest() {
+    for (int i = 0; i < TEST_QTY; i++) {
+      TaskPriority priority = i % 2 == 0 ? TaskPriority.High : TaskPriority.Low;
+
+      assertEquals(i, scheduler.getQueuedTaskCount());
+      assertEquals(i / 2, scheduler.getQueuedTaskCount(priority));
+
+      if (i <= 5) {
+        scheduler.schedule(DoNothingRunnable.instance(), 100, priority);
+      } else {
+        scheduler.submitScheduled(new TestCallable(), 100, priority);
+      }
+    }
+  }
+
+  @Test
+  public void getWaitingForExecutionTaskCountTest() {
+    for (int i = 0; i < TEST_QTY; i++) {
+      TaskPriority priority = i % 2 == 0 ? TaskPriority.High : TaskPriority.Low;
+
+      assertEquals(i, scheduler.getWaitingForExecutionTaskCount());
+      assertEquals(i / 2, scheduler.getWaitingForExecutionTaskCount(priority));
+
+      if (i <= 5) {
+        scheduler.submit(DoNothingRunnable.instance(), priority);
+      } else {
+        scheduler.submit(new TestCallable(), priority);
+      }
+      scheduler.submitScheduled(DoNothingRunnable.instance(), 10_000, priority); // task should be ignored
+    }
+  }
+
+  @Test
+  public void getActiveTaskCountTest() {
+    BlockingTestRunnable btr = new BlockingTestRunnable();
+    try {
+      scheduler.execute(btr);
+
+      assertEquals(0, scheduler.getActiveTaskCount());
+
+      CentralThreadlyPool.isolatedTaskPool().execute(() -> scheduler.tick());
+
+      new TestCondition(() -> scheduler.getActiveTaskCount() == 1).blockTillTrue();
+    } finally {
+      btr.unblock();
+    }
+  }
+
   @Test
   public void lastTickTimeTest() {
     long now = Clock.lastKnownTimeMillis();
@@ -149,6 +211,7 @@ public void advanceThenTickTest() {
   public void executeTest() {
     List<TestRunnable> runnables = getRunnableList();
     Iterator<TestRunnable> it = runnables.iterator();
+    scheduler.execute(it.next(), TaskPriority.Low); // even low priority should finish in tick
     while (it.hasNext()) {
       scheduler.execute(it.next());
     }
@@ -441,7 +504,7 @@ public void removeRunnableTest() {
 
     assertFalse(scheduler.remove(immediateRun));
 
-    scheduler.scheduleWithFixedDelay(immediateRun, 0, delay);
+    scheduler.scheduleWithFixedDelay(immediateRun, 0, delay, TaskPriority.High);
     assertTrue(scheduler.remove(immediateRun));
 
     scheduler.scheduleWithFixedDelay(immediateRun, 0, delay);
@@ -508,7 +571,7 @@ public void handleRunStart() {
       }
     };
 
-    scheduler.scheduleWithFixedDelay(tr, 0, 0);
+    scheduler.scheduleWithFixedDelay(tr, 0, 0, TaskPriority.High);
 
     assertEquals(1, scheduler.tick());