Merge branch 'stable-3.1'

* stable-3.1:
  Upgrade bazlets to latest stable-2.16 to build with 2.16.18 API
  Bump Bazel version to 3.1.0

Change-Id: I7e86337e7a381279c0578c5ef4195113cb8c44bc
diff --git a/WORKSPACE b/WORKSPACE
index db55f33..067d6c4 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -3,7 +3,7 @@
 load("//:bazlets.bzl", "load_bazlets")
 
 load_bazlets(
-    commit = "fc1bfdf008c4b07e7cc4214fdacf25560276f9c4",
+    commit = "5c26af9e0374ede4cd67939be972adf6c4cda791",
     #local_path = "/home/<user>/projects/bazlets",
 )
 
diff --git a/src/test/java/com/googlesource/gerrit/plugins/reviewers/ReviewersIT.java b/src/test/java/com/googlesource/gerrit/plugins/reviewers/ReviewersIT.java
index 6d31562..592f9ca 100644
--- a/src/test/java/com/googlesource/gerrit/plugins/reviewers/ReviewersIT.java
+++ b/src/test/java/com/googlesource/gerrit/plugins/reviewers/ReviewersIT.java
@@ -23,21 +23,23 @@
 import static com.googlesource.gerrit.plugins.reviewers.ReviewersConfig.SECTION_FILTER;
 import static java.util.stream.Collectors.toSet;
 
-import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableSet;
+import com.google.common.collect.Lists;
 import com.google.gerrit.acceptance.LightweightPluginDaemonTest;
 import com.google.gerrit.acceptance.NoHttpd;
 import com.google.gerrit.acceptance.TestAccount;
 import com.google.gerrit.acceptance.TestPlugin;
 import com.google.gerrit.acceptance.testsuite.project.ProjectOperations;
+import com.google.gerrit.entities.Account;
 import com.google.gerrit.entities.BranchNameKey;
 import com.google.gerrit.entities.RefNames;
 import com.google.gerrit.extensions.common.AccountInfo;
+import com.google.gerrit.extensions.restapi.RestApiException;
 import com.google.inject.Inject;
 import java.util.Collection;
+import java.util.List;
+import java.util.Set;
 import org.eclipse.jgit.lib.Config;
-import org.eclipse.jgit.revwalk.RevCommit;
-import org.junit.Before;
 import org.junit.Test;
 
 @NoHttpd
@@ -45,65 +47,62 @@
 public class ReviewersIT extends LightweightPluginDaemonTest {
   @Inject private ProjectOperations projectOperations;
 
-  @Before
-  public void setUp() throws Exception {
-    fetch(testRepo, RefNames.REFS_CONFIG + ":refs/heads/config");
-    testRepo.reset("refs/heads/config");
-  }
-
   @Test
   public void addReviewers() throws Exception {
-    RevCommit oldHead = projectOperations.project(project).getHead("master");
     TestAccount user2 = accountCreator.user2();
-
-    Config cfg = new Config();
-    cfg.setStringList(
-        SECTION_FILTER, "*", KEY_REVIEWER, ImmutableList.of(user.email(), user2.email()));
-
-    pushFactory
-        .create(admin.newIdent(), testRepo, "Add reviewers", FILENAME, cfg.toText())
-        .to(RefNames.REFS_CONFIG)
-        .assertOkStatus();
-
-    testRepo.reset(oldHead);
+    setReviewerFilters(filter("*").reviewer(user).reviewer(user2));
     String changeId = createChange().getChangeId();
-
-    Collection<AccountInfo> reviewers;
-    // Wait for 100 ms until the create patch set event
-    // is processed by the reviewers plugin
-    long wait = 0;
-    do {
-      reviewers = gApi.changes().id(changeId).get().reviewers.get(REVIEWER);
-      if (reviewers == null) {
-        Thread.sleep(10);
-        wait += 10;
-        if (wait > 100) {
-          assertWithMessage("Timeout of 100 ms exceeded").fail();
-        }
-      }
-    } while (reviewers == null);
-
-    assertThat(reviewers.stream().map(a -> a._accountId).collect(toSet()))
-        .containsExactlyElementsIn(ImmutableSet.of(user.id().get(), user2.id().get()));
+    assertThat(reviewersFor(changeId))
+        .containsExactlyElementsIn(ImmutableSet.of(user.id(), user2.id()));
   }
 
   @Test
   public void addReviewersMatchMultipleSections() throws Exception {
-    RevCommit oldHead = projectOperations.project(project).getHead("master");
     TestAccount user2 = accountCreator.user2();
+    setReviewerFilters(filter("*").reviewer(user), filter("\"^a.txt\"").reviewer(user2));
+    String changeId = createChange().getChangeId();
+    assertThat(reviewersFor(changeId))
+        .containsExactlyElementsIn(ImmutableSet.of(user.id(), user2.id()));
+  }
 
+  @Test
+  public void doNotAddReviewersFromNonMatchingFilters() throws Exception {
+    setReviewerFilters(filter("branch:master").reviewer(user));
+    createBranch(BranchNameKey.create(project, "other-branch"));
+    // Create a change that matches the filter section.
+    createChange("refs/for/master");
+    // The actual change we want to test
+    String changeId = createChange("refs/for/other-branch").getChangeId();
+    assertNoReviewersAddedFor(changeId);
+  }
+
+  @Test
+  public void addReviewersFromMatchingFilters() throws Exception {
+    setReviewerFilters(filter("branch:other-branch").reviewer(user));
+    // Create a change that doesn't match the filter section.
+    createChange("refs/for/master");
+    // The actual change we want to test
+    createBranch(BranchNameKey.create(project, "other-branch"));
+    String changeId = createChange("refs/for/other-branch").getChangeId();
+    assertThat(reviewersFor(changeId)).containsExactlyElementsIn(ImmutableSet.of(user.id()));
+  }
+
+  private void setReviewerFilters(Filter... filters) throws Exception {
+    fetch(testRepo, RefNames.REFS_CONFIG + ":refs/heads/config");
+    testRepo.reset("refs/heads/config");
     Config cfg = new Config();
-    cfg.setStringList(SECTION_FILTER, "*", KEY_REVIEWER, ImmutableList.of(user.email()));
-    cfg.setStringList(SECTION_FILTER, "^a.txt", KEY_REVIEWER, ImmutableList.of(user2.email()));
-
+    for (Filter f : filters) {
+      cfg.setStringList(SECTION_FILTER, f.filter, KEY_REVIEWER, f.reviewers);
+    }
     pushFactory
         .create(admin.newIdent(), testRepo, "Add reviewers", FILENAME, cfg.toText())
         .to(RefNames.REFS_CONFIG)
         .assertOkStatus();
+    testRepo.reset(projectOperations.project(project).getHead("master"));
+  }
 
-    testRepo.reset(oldHead);
-    String changeId = createChange().getChangeId();
-
+  private Set<Account.Id> reviewersFor(String changeId)
+      throws RestApiException, InterruptedException {
     Collection<AccountInfo> reviewers;
     // Wait for 100 ms until the create patch set event
     // is processed by the reviewers plugin
@@ -118,33 +117,11 @@
         }
       }
     } while (reviewers == null);
-
-    assertThat(reviewers.stream().map(a -> a._accountId).collect(toSet()))
-        .containsExactlyElementsIn(ImmutableSet.of(user.id().get(), user2.id().get()));
+    return reviewers.stream().map(a -> Account.id(a._accountId)).collect(toSet());
   }
 
-  @Test
-  public void doNotAddReviewersFromNonMatchingFilters() throws Exception {
-    RevCommit oldHead = projectOperations.project(project).getHead("master");
-
-    Config cfg = new Config();
-    cfg.setString(SECTION_FILTER, "branch:master", KEY_REVIEWER, user.email());
-
-    pushFactory
-        .create(admin.newIdent(), testRepo, "Add reviewers", FILENAME, cfg.toText())
-        .to(RefNames.REFS_CONFIG)
-        .assertOkStatus();
-
-    testRepo.reset(oldHead);
-
-    createBranch(BranchNameKey.create(project, "other-branch"));
-
-    // Create a change that matches the filter section.
-    createChange("refs/for/master");
-
-    // The actual change we want to test
-    String changeId = createChange("refs/for/other-branch").getChangeId();
-
+  private void assertNoReviewersAddedFor(String changeId)
+      throws InterruptedException, RestApiException {
     Collection<AccountInfo> reviewers;
     long wait = 0;
     do {
@@ -156,37 +133,22 @@
     assertThat(reviewers).isNull();
   }
 
-  @Test
-  public void addReviewersFromMatchingFilters() throws Exception {
-    RevCommit oldHead = projectOperations.project(project).getHead("master");
+  private Filter filter(String filter) {
+    return new Filter(filter);
+  }
 
-    Config cfg = new Config();
-    cfg.setString(SECTION_FILTER, "branch:other-branch", KEY_REVIEWER, user.email());
+  private class Filter {
+    List<String> reviewers;
+    String filter;
 
-    pushFactory
-        .create(admin.newIdent(), testRepo, "Add reviewers", FILENAME, cfg.toText())
-        .to(RefNames.REFS_CONFIG)
-        .assertOkStatus();
+    Filter(String filter) {
+      this.filter = filter;
+      this.reviewers = Lists.newArrayList();
+    }
 
-    testRepo.reset(oldHead);
-
-    createBranch(BranchNameKey.create(project, "other-branch"));
-
-    // Create a change that doesn't match the filter section.
-    createChange("refs/for/master");
-
-    // The actual change we want to test
-    String changeId = createChange("refs/for/other-branch").getChangeId();
-
-    Collection<AccountInfo> reviewers;
-    long wait = 0;
-    do {
-      Thread.sleep(10);
-      wait += 10;
-      reviewers = gApi.changes().id(changeId).get().reviewers.get(REVIEWER);
-    } while (reviewers == null && wait < 100);
-
-    assertThat(reviewers.stream().map(a -> a._accountId).collect(toSet()))
-        .containsExactlyElementsIn(ImmutableSet.of(user.id().get()));
+    Filter reviewer(TestAccount reviewer) {
+      reviewers.add(reviewer.email());
+      return this;
+    }
   }
 }
diff --git a/src/test/java/com/googlesource/gerrit/plugins/reviewers/ReviewersResolverIT.java b/src/test/java/com/googlesource/gerrit/plugins/reviewers/ReviewersResolverIT.java
index 38f367d..afb520c 100644
--- a/src/test/java/com/googlesource/gerrit/plugins/reviewers/ReviewersResolverIT.java
+++ b/src/test/java/com/googlesource/gerrit/plugins/reviewers/ReviewersResolverIT.java
@@ -87,6 +87,6 @@
 
   private TestAccount createTestAccount(String name, String group) throws Exception {
     name = name(name);
-    return accountCreator.create(name, name + "@example.com", name + " full name", group);
+    return accountCreator.create(name, name + "@example.com", name + " full name", null, group);
   }
 }