clintropolis commented on a change in pull request #9492: add manual laning 
strategy, integration test
URL: https://github.com/apache/druid/pull/9492#discussion_r392105531
 
 

 ##########
 File path: server/src/test/java/org/apache/druid/server/QuerySchedulerTest.java
 ##########
 @@ -399,6 +399,49 @@ public void testMisConfigHiLo()
   }
 
 
+  @Test
+  public void testConfigManual()
+  {
+    final Injector injector = createInjector();
+    final String propertyPrefix = "druid.query.scheduler";
+    final JsonConfigProvider<QuerySchedulerProvider> provider = 
JsonConfigProvider.of(
+        propertyPrefix,
+        QuerySchedulerProvider.class
+    );
+    final Properties properties = new Properties();
+    properties.put(propertyPrefix + ".numThreads", "10");
+    properties.put(propertyPrefix + ".laning.strategy", "manual");
+    properties.put(propertyPrefix + ".laning.lanes.one", "1");
+    properties.put(propertyPrefix + ".laning.lanes.two", "2");
+    provider.inject(properties, injector.getInstance(JsonConfigurator.class));
+    final QueryScheduler scheduler = provider.get().get().get();
+    Assert.assertEquals(10, scheduler.getTotalAvailableCapacity());
+    Assert.assertEquals(1, scheduler.getLaneAvailableCapacity("one"));
+    Assert.assertEquals(2, scheduler.getLaneAvailableCapacity("two"));
 
 Review comment:
   added some asserts to existing tests to show that non-existent lane is 
unavailable

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