TagsIT,ListBranchesIT,ListProjectsIT: Migrate from try-catch-fail to assertThrows

Change-Id: I7572ee73d49cca8b814f79740760f0be778685ea

javatests/com/google/gerrit/acceptance/rest/project/ListBranchesIT.java

@@ -173,11 +173,6 @@ public class ListBranchesIT extends AbstractDaemonTest {
   }
 
   private void assertBadRequest(ListRefsRequest<BranchInfo> req) throws Exception {
-    try {
+    assertThrows(BadRequestException.class, () -> req.get());
-      req.get();
-      fail("Expected BadRequestException");
-    } catch (BadRequestException e) {
-      // Expected
-    }
   }
 }

javatests/com/google/gerrit/acceptance/rest/project/ListProjectsIT.java

@@ -17,6 +17,7 @@ package com.google.gerrit.acceptance.rest.project;
 import static com.google.common.truth.Truth.assertThat;
 import static com.google.gerrit.acceptance.rest.project.ProjectAssert.assertThatNameList;
 import static com.google.gerrit.server.group.SystemGroupBackend.REGISTERED_USERS;
+import static com.google.gerrit.testing.GerritJUnit.assertThrows;
 import static java.util.stream.Collectors.toList;
 
 import com.google.common.base.Splitter;
@@ -334,11 +335,6 @@ public class ListProjectsIT extends AbstractDaemonTest {
   }
 
   private void assertBadRequest(ListRequest req) throws Exception {
-    try {
+    assertThrows(BadRequestException.class, () -> req.get());
-      req.get();
-      fail("Expected BadRequestException");
-    } catch (BadRequestException expected) {
-      // Expected.
-    }
   }
 }

javatests/com/google/gerrit/acceptance/rest/project/TagsIT.java

@@ -370,12 +370,7 @@ public class TagsIT extends AbstractDaemonTest {
   }
 
   private void assertBadRequest(ListRefsRequest<TagInfo> req) throws Exception {
-    try {
+    assertThrows(BadRequestException.class, () -> req.get());
-      req.get();
-      fail("Expected BadRequestException");
-    } catch (BadRequestException e) {
-      // Expected
-    }
   }
 
   private void grantTagPermissions() throws Exception {