DraftChangeIT: Also test when allowDrafts=false

Rename the class from DeleteDraftChangeIT to DraftChangeIT since the
tests in it are not limited to deleting draft changes.

Add a configuration with the allowDrafts setting disabled.

Add a test to ensure that pushing a draft change is rejected when the
setting is disabled.

Change-Id: I9273fd6cf756a9c7974c29700835a35dba7b09f1

gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/AbstractDaemonTest.java

@@ -39,6 +39,7 @@ import com.google.gerrit.server.IdentifiedUser;
 import com.google.gerrit.server.OutputFormat;
 import com.google.gerrit.server.account.GroupCache;
 import com.google.gerrit.server.config.AllProjectsName;
+import com.google.gerrit.server.config.GerritServerConfig;
 import com.google.gerrit.server.git.GitRepositoryManager;
 import com.google.gerrit.server.git.MetaDataUpdate;
 import com.google.gerrit.server.git.ProjectConfig;
@@ -116,6 +117,9 @@ public abstract class AbstractDaemonTest {
   @Inject
   protected Provider<InternalChangeQuery> queryProvider;
 
+  @Inject
+  protected @GerritServerConfig Config cfg;
+
   protected Git git;
   protected GerritServer server;
   protected TestAccount admin;
@@ -165,6 +169,16 @@ public abstract class AbstractDaemonTest {
     return cfg;
   }
 
+  protected static Config allowDraftsDisabledConfig() {
+    Config cfg = new Config();
+    cfg.setBoolean("change", null, "allowDrafts", false);
+    return cfg;
+  }
+
+  protected boolean isAllowDrafts() {
+    return cfg.getBoolean("change", "allowDrafts", true);
+  }
+
   private void beforeTest(Config cfg, boolean memory, boolean enableHttpd) throws Exception {
     server = startServer(cfg, memory, enableHttpd);
     server.getTestInjector().injectMembers(this);

gerrit-acceptance-tests/src/test/java/com/google/gerrit/acceptance/rest/change/DraftChangeIT.java

@@ -15,6 +15,7 @@
 package com.google.gerrit.acceptance.rest.change;
 
 import static com.google.common.truth.Truth.assertThat;
+import static com.google.common.truth.TruthJUnit.assume;
 
 import com.google.common.collect.Iterables;
 import com.google.gerrit.acceptance.AbstractDaemonTest;
@@ -24,66 +25,89 @@ import com.google.gerrit.acceptance.RestSession;
 import com.google.gerrit.extensions.client.ChangeStatus;
 import com.google.gerrit.extensions.common.ChangeInfo;
 import com.google.gerrit.reviewdb.client.PatchSet;
+import com.google.gerrit.testutil.ConfigSuite;
 import com.google.gwtorm.server.OrmException;
 
 import org.apache.http.HttpStatus;
+import org.eclipse.jgit.lib.Config;
 import org.junit.Test;
 
 import java.io.IOException;
 
-public class DeleteDraftChangeIT extends AbstractDaemonTest {
+public class DraftChangeIT extends AbstractDaemonTest {
+  @ConfigSuite.Config
+  public static Config allowDraftsDisabled() {
+    return allowDraftsDisabledConfig();
+  }
 
   @Test
   public void deleteChange() throws Exception {
-    String changeId = createChange().getChangeId();
+    PushOneCommit.Result result = createChange();
+    result.assertOkStatus();
+    String changeId = result.getChangeId();
     String triplet = "p~master~" + changeId;
     ChangeInfo c = get(triplet);
     assertThat(c.id).isEqualTo(triplet);
     assertThat(c.status).isEqualTo(ChangeStatus.NEW);
-    RestResponse r = deleteChange(changeId, adminSession);
-    assertThat(r.getEntityContent()).isEqualTo("Change is not a draft");
-    assertThat(r.getStatusCode()).isEqualTo(HttpStatus.SC_CONFLICT);
+    RestResponse response = deleteChange(changeId, adminSession);
+    assertThat(response.getEntityContent()).isEqualTo("Change is not a draft");
+    assertThat(response.getStatusCode()).isEqualTo(HttpStatus.SC_CONFLICT);
   }
 
   @Test
   public void deleteDraftChange() throws Exception {
-    String changeId = createDraftChange();
+    assume().that(isAllowDrafts()).isTrue();
+    PushOneCommit.Result result = createDraftChange();
+    result.assertOkStatus();
+    String changeId = result.getChangeId();
     String triplet = "p~master~" + changeId;
     ChangeInfo c = get(triplet);
     assertThat(c.id).isEqualTo(triplet);
     assertThat(c.status).isEqualTo(ChangeStatus.DRAFT);
-    RestResponse r = deleteChange(changeId, adminSession);
-    assertThat(r.getStatusCode()).isEqualTo(HttpStatus.SC_NO_CONTENT);
+    RestResponse response = deleteChange(changeId, adminSession);
+    assertThat(response.getStatusCode()).isEqualTo(HttpStatus.SC_NO_CONTENT);
   }
 
   @Test
   public void publishDraftChange() throws Exception {
-    String changeId = createDraftChange();
+    assume().that(isAllowDrafts()).isTrue();
+    PushOneCommit.Result result = createDraftChange();
+    result.assertOkStatus();
+    String changeId = result.getChangeId();
     String triplet = "p~master~" + changeId;
     ChangeInfo c = get(triplet);
     assertThat(c.id).isEqualTo(triplet);
     assertThat(c.status).isEqualTo(ChangeStatus.DRAFT);
-    RestResponse r = publishChange(changeId);
-    assertThat(r.getStatusCode()).isEqualTo(HttpStatus.SC_NO_CONTENT);
+    RestResponse response = publishChange(changeId);
+    assertThat(response.getStatusCode()).isEqualTo(HttpStatus.SC_NO_CONTENT);
     c = get(triplet);
     assertThat(c.status).isEqualTo(ChangeStatus.NEW);
   }
 
   @Test
   public void publishDraftPatchSet() throws Exception {
-    String changeId = createDraftChange();
+    assume().that(isAllowDrafts()).isTrue();
+    PushOneCommit.Result result = createDraftChange();
+    result.assertOkStatus();
+    String changeId = result.getChangeId();
     String triplet = "p~master~" + changeId;
     ChangeInfo c = get(triplet);
     assertThat(c.id).isEqualTo(triplet);
     assertThat(c.status).isEqualTo(ChangeStatus.DRAFT);
-    RestResponse r = publishPatchSet(changeId);
-    assertThat(r.getStatusCode()).isEqualTo(HttpStatus.SC_NO_CONTENT);
+    RestResponse response = publishPatchSet(changeId);
+    assertThat(response.getStatusCode()).isEqualTo(HttpStatus.SC_NO_CONTENT);
     assertThat(get(triplet).status).isEqualTo(ChangeStatus.NEW);
   }
 
-  private String createDraftChange() throws Exception {
-    PushOneCommit push = pushFactory.create(db, admin.getIdent());
-    return push.to(git, "refs/drafts/master").getChangeId();
+  @Test
+  public void createDraftChangeWhenDraftsNotAllowed() throws Exception {
+    assume().that(isAllowDrafts()).isFalse();
+    PushOneCommit.Result r = createDraftChange();
+    r.assertErrorStatus("cannot upload drafts");
+  }
+
+  private PushOneCommit.Result createDraftChange() throws Exception {
+    return pushTo("refs/drafts/master");
   }
 
   private static RestResponse deleteChange(String changeId,