YARN-6832. Tests use assertTrue(....equals(...)) instead of assertEquals()). (Daniel Templeton via Yufei Gu)

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/client/api/impl/TestYarnClient.java

@@ -489,9 +489,8 @@ public class TestYarnClient {
     }
 
     reports = client.getApplications(appTypes, appStates);
-    Assert.assertEquals(reports.size(), 1);
-    Assert
-    .assertTrue((reports.get(0).getApplicationType().equals("NON-YARN")));
+    Assert.assertEquals(1, reports.size());
+    Assert.assertEquals("NON-YARN", reports.get(0).getApplicationType());
     for (ApplicationReport report : reports) {
       Assert.assertTrue(expectedReports.contains(report));
     }
@@ -1501,8 +1500,8 @@ public class TestYarnClient {
       ReservationRequests reservationRequests =
           response.getReservationAllocationState().get(0)
               .getReservationDefinition().getReservationRequests();
-      Assert.assertTrue(
-          reservationRequests.getInterpreter().toString().equals("R_ALL"));
+      Assert.assertEquals("R_ALL",
+          reservationRequests.getInterpreter().toString());
       Assert.assertTrue(reservationRequests.getReservationResources().get(0)
           .getDuration() == duration);
     } finally {

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/test/java/org/apache/hadoop/yarn/util/TestProcfsBasedProcessTree.java

@@ -240,7 +240,7 @@ public class TestProcfsBasedProcessTree {
       "vmem (old API) for the gone-process is " + p.getCumulativeVmem()
           + " . It should be UNAVAILABLE(-1).",
           p.getCumulativeVmem() == UNAVAILABLE);
-    Assert.assertTrue(p.toString().equals("[ ]"));
+    Assert.assertEquals("[ ]", p.toString());
   }
 
   protected ProcfsBasedProcessTree createProcessTree(String pid) {

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/test/java/org/apache/hadoop/yarn/util/TestYarnVersionInfo.java

@@ -20,9 +20,9 @@ package org.apache.hadoop.yarn.util;
 
 import java.io.IOException;
 
-import org.apache.hadoop.yarn.util.YarnVersionInfo;
 import org.junit.Test;
 import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.assertNotEquals;
 import static org.junit.Assert.assertNotNull;
 /**
  * A JUnit test to test {@link YarnVersionInfo}
@@ -38,9 +38,12 @@ public class TestYarnVersionInfo {
 
     // can't easily know what the correct values are going to be so just
     // make sure they aren't Unknown
-    assertTrue("getVersion returned Unknown", !YarnVersionInfo.getVersion().equals("Unknown"));
-    assertTrue("getUser returned Unknown", !YarnVersionInfo.getUser().equals("Unknown"));
-    assertTrue("getSrcChecksum returned Unknown", !YarnVersionInfo.getSrcChecksum().equals("Unknown"));
+    assertNotEquals("getVersion returned Unknown",
+        "Unknown", YarnVersionInfo.getVersion());
+    assertNotEquals("getUser returned Unknown",
+        "Unknown", YarnVersionInfo.getUser());
+    assertNotEquals("getSrcChecksum returned Unknown",
+        "Unknown", YarnVersionInfo.getSrcChecksum());
 
     // these could be Unknown if the VersionInfo generated from code not in svn or git
     // so just check that they return something

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/test/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/TestAuxServices.java

@@ -210,7 +210,7 @@ public class TestAuxServices {
       defaultAuxClassPath = new HashSet<String>(Arrays.asList(StringUtils
           .getTrimmedStrings(auxClassPath)));
     }
-    Assert.assertTrue(auxName.equals("ServiceC"));
+    Assert.assertEquals("ServiceC", auxName);
     aux.serviceStop();
 
     // create a new jar file, and configure it as customized class path

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/test/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/TestCGroupsHandlerImpl.java

@@ -573,4 +573,4 @@ public class TestCGroupsHandlerImpl {
         new File(new File(newMountPoint, "cpu"), this.hierarchy);
     assertTrue("Yarn cgroup should exist", hierarchyFile.exists());
   }
-}
+}

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/TestClientRMService.java

@@ -1344,8 +1344,8 @@ public class TestClientRMService {
     ReservationRequests reservationRequests =
         response.getReservationAllocationState().get(0)
             .getReservationDefinition().getReservationRequests();
-    Assert.assertTrue(
-        reservationRequests.getInterpreter().toString().equals("R_ALL"));
+    Assert.assertEquals("R_ALL",
+        reservationRequests.getInterpreter().toString());
     Assert.assertTrue(reservationRequests.getReservationResources().get(0)
         .getDuration() == duration);
 

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/reservation/TestReservationInputValidator.java

@@ -119,9 +119,8 @@ public class TestReservationInputValidator {
     } catch (YarnException e) {
       Assert.assertNull(plan);
       String message = e.getMessage();
-      Assert
-          .assertTrue(message
-              .equals("The queue is not specified. Please try again with a valid reservable queue."));
+      Assert.assertEquals("The queue is not specified. Please try again with a "
+          + "valid reservable queue.", message);
       LOG.info(message);
     }
   }
@@ -161,9 +160,8 @@ public class TestReservationInputValidator {
     } catch (YarnException e) {
       Assert.assertNull(plan);
       String message = e.getMessage();
-      Assert
-          .assertTrue(message
-              .equals("Missing reservation definition. Please try again by specifying a reservation definition."));
+      Assert.assertEquals("Missing reservation definition. Please try again by "
+          + "specifying a reservation definition.", message);
       LOG.info(message);
     }
   }

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/TestSchedulerUtils.java

@@ -760,12 +760,12 @@ public class TestSchedulerUtils {
           mock(Priority.class), ResourceRequest.ANY, resource, 1);
       SchedulerUtils.normalizeAndvalidateRequest(resReq, maxResource, "queue",
           scheduler, rmContext);
-      Assert.assertTrue(resReq.getNodeLabelExpression().equals("x"));
+      Assert.assertEquals("x", resReq.getNodeLabelExpression());
       
       resReq.setNodeLabelExpression(" y ");
       SchedulerUtils.normalizeAndvalidateRequest(resReq, maxResource, "queue",
           scheduler, rmContext);
-      Assert.assertTrue(resReq.getNodeLabelExpression().equals("y"));
+      Assert.assertEquals("y", resReq.getNodeLabelExpression());
     } catch (InvalidResourceRequestException e) {
       e.printStackTrace();
       fail("Should be valid when request labels is a subset of queue labels");

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/TestCapacityScheduler.java

@@ -1527,7 +1527,7 @@ public class TestCapacityScheduler {
     String queue =
         scheduler.getApplicationAttempt(appsInA1.get(0)).getQueue()
             .getQueueName();
-    Assert.assertTrue(queue.equals("a1"));
+    Assert.assertEquals("a1", queue);
 
     List<ApplicationAttemptId> appsInA = scheduler.getAppsInQueue("a");
     assertTrue(appsInA.contains(appAttemptId));
@@ -1552,7 +1552,7 @@ public class TestCapacityScheduler {
     queue =
         scheduler.getApplicationAttempt(appsInB1.get(0)).getQueue()
             .getQueueName();
-    Assert.assertTrue(queue.equals("b1"));
+    Assert.assertEquals("b1", queue);
 
     appsInB = scheduler.getAppsInQueue("b");
     assertTrue(appsInB.contains(appAttemptId));
@@ -1589,7 +1589,7 @@ public class TestCapacityScheduler {
     String queue =
         scheduler.getApplicationAttempt(appsInA1.get(0)).getQueue()
             .getQueueName();
-    Assert.assertTrue(queue.equals("a1"));
+    Assert.assertEquals("a1", queue);
 
     List<ApplicationAttemptId> appsInA = scheduler.getAppsInQueue("a");
     assertTrue(appsInA.contains(appAttemptId));
@@ -1611,7 +1611,7 @@ public class TestCapacityScheduler {
     queue =
         scheduler.getApplicationAttempt(appsInA2.get(0)).getQueue()
             .getQueueName();
-    Assert.assertTrue(queue.equals("a2"));
+    Assert.assertEquals("a2", queue);
 
     appsInA1 = scheduler.getAppsInQueue("a1");
     assertTrue(appsInA1.isEmpty());
@@ -2109,7 +2109,7 @@ public class TestCapacityScheduler {
     String queue =
         scheduler.getApplicationAttempt(appsInA1.get(0)).getQueue()
             .getQueueName();
-    Assert.assertTrue(queue.equals("a1"));
+    Assert.assertEquals("a1", queue);
 
     List<ApplicationAttemptId> appsInRoot = scheduler.getAppsInQueue("root");
     assertTrue(appsInRoot.contains(appAttemptId));
@@ -2131,7 +2131,7 @@ public class TestCapacityScheduler {
     queue =
         scheduler.getApplicationAttempt(appsInB1.get(0)).getQueue()
             .getQueueName();
-    Assert.assertTrue(queue.equals("b1"));
+    Assert.assertEquals("b1", queue);
 
     appsInB = scheduler.getAppsInQueue("b");
     assertTrue(appsInB.contains(appAttemptId));
@@ -2487,7 +2487,7 @@ public class TestCapacityScheduler {
     String queue =
         scheduler.getApplicationAttempt(appsInA1.get(0)).getQueue()
             .getQueueName();
-    Assert.assertTrue(queue.equals("a1"));
+    Assert.assertEquals("a1", queue);
 
     List<ApplicationAttemptId> appsInRoot = scheduler.getAppsInQueue("root");
     assertTrue(appsInRoot.contains(appAttemptId));

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/TestCapacitySchedulerDynamicBehavior.java

@@ -222,7 +222,7 @@ public class TestCapacitySchedulerDynamicBehavior {
     String queue =
         scheduler.getApplicationAttempt(appsInB1.get(0)).getQueue()
             .getQueueName();
-    Assert.assertTrue(queue.equals("b1"));
+    Assert.assertEquals("b1", queue);
 
     List<ApplicationAttemptId> appsInRoot = scheduler.getAppsInQueue("root");
     assertTrue(appsInRoot.contains(appAttemptId));

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/webapp/TestRMWithXFSFilter.java

@@ -41,8 +41,8 @@ import org.junit.Test;
 import java.util.HashMap;
 import java.util.Map;
 
+import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
 
 /**
  * Used TestRMWebServices as an example of web invocations of RM and added
@@ -87,9 +87,9 @@ public class TestRMWithXFSFilter extends JerseyTestBase {
     ClientResponse response = r.path("ws").path("v1").path("cluster")
         .path("info").accept("application/xml")
         .get(ClientResponse.class);
-    assertTrue("Should have received DENY x-frame options header",
-        response.getHeaders().get(XFrameOptionsFilter.X_FRAME_OPTIONS).get(0)
-            .equals("DENY"));
+    assertEquals("Should have received DENY x-frame options header",
+        "DENY",
+        response.getHeaders().get(XFrameOptionsFilter.X_FRAME_OPTIONS).get(0));
   }
 
   protected void createInjector(String headerValue) {
@@ -138,9 +138,9 @@ public class TestRMWithXFSFilter extends JerseyTestBase {
     ClientResponse response = r.path("ws").path("v1").path("cluster")
         .path("info").accept("application/xml")
         .get(ClientResponse.class);
-    assertTrue("Should have received SAMEORIGIN x-frame options header",
-        response.getHeaders().get(XFrameOptionsFilter.X_FRAME_OPTIONS).get(0)
-            .equals("SAMEORIGIN"));
+    assertEquals("Should have received SAMEORIGIN x-frame options header",
+        "SAMEORIGIN",
+        response.getHeaders().get(XFrameOptionsFilter.X_FRAME_OPTIONS).get(0));
   }
 
   @Test