1 files changed, 173 insertions, 0 deletions
diff --git a/javatests/com/google/gerrit/reviewdb/client/ChangeTest.java b/javatests/com/google/gerrit/reviewdb/client/ChangeTest.java
new file mode 100644
index 0000000000..6d1d0a6817
--- /dev/null
+++ b/javatests/com/google/gerrit/reviewdb/client/ChangeTest.java
@@ -0,0 +1,173 @@
+// Copyright (C) 2014 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gerrit.reviewdb.client;
+
+import static com.google.common.truth.Truth.assertThat;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNull;
+
+import org.junit.Test;
+
+public class ChangeTest {
+  @Test
+  public void parseInvalidRefNames() {
+    assertNotRef(null);
+    assertNotRef("");
+    assertNotRef("01/1/1");
+    assertNotRef("HEAD");
+    assertNotRef("refs/tags/v1");
+  }
+
+  @Test
+  public void parsePatchSetRefNames() {
+    assertRef(1, "refs/changes/01/1/1");
+    assertRef(1234, "refs/changes/34/1234/56");
+
+    // Invalid characters.
+    assertNotRef("refs/changes/0x/1/1");
+    assertNotRef("refs/changes/01/x/1");
+    assertNotRef("refs/changes/01/1/x");
+
+    // Truncations.
+    assertNotRef("refs/changes/");
+    assertNotRef("refs/changes/1");
+    assertNotRef("refs/changes/01");
+    assertNotRef("refs/changes/01/");
+    assertNotRef("refs/changes/01/1/");
+    assertNotRef("refs/changes/01/1/1/");
+    assertNotRef("refs/changes/01//1/1");
+
+    // Leading zeroes.
+    assertNotRef("refs/changes/01/01/1");
+    assertNotRef("refs/changes/01/1/01");
+
+    // Mismatched last 2 digits.
+    assertNotRef("refs/changes/35/1234/56");
+
+    // Something other than patch set after change.
+    assertNotRef("refs/changes/34/1234/0");
+    assertNotRef("refs/changes/34/1234/foo");
+    assertNotRef("refs/changes/34/1234|56");
+    assertNotRef("refs/changes/34/1234foo");
+  }
+
+  @Test
+  public void parseEditRefNames() {
+    assertRef(5, "refs/users/34/1234/edit-5/1");
+    assertRef(5, "refs/users/34/1234/edit-5");
+    assertNotRef("refs/changes/34/1234/edit-5/1");
+    assertNotRef("refs/users/34/1234/EDIT-5/1");
+    assertNotRef("refs/users/34/1234");
+  }
+
+  @Test
+  public void parseChangeMetaRefNames() {
+    assertRef(1, "refs/changes/01/1/meta");
+    assertRef(1234, "refs/changes/34/1234/meta");
+
+    assertNotRef("refs/changes/01/1/met");
+    assertNotRef("refs/changes/01/1/META");
+    assertNotRef("refs/changes/01/1/1/meta");
+  }
+
+  @Test
+  public void parseRobotCommentRefNames() {
+    assertRef(1, "refs/changes/01/1/robot-comments");
+    assertRef(1234, "refs/changes/34/1234/robot-comments");
+
+    assertNotRef("refs/changes/01/1/robot-comment");
+    assertNotRef("refs/changes/01/1/ROBOT-COMMENTS");
+    assertNotRef("refs/changes/01/1/1/robot-comments");
+  }
+
+  @Test
+  public void parseStarredChangesRefNames() {
+    assertAllUsersRef(1, "refs/starred-changes/01/1/1001");
+    assertAllUsersRef(1234, "refs/starred-changes/34/1234/1001");
+
+    assertNotRef("refs/starred-changes/01/1/1001");
+    assertNotAllUsersRef(null);
+    assertNotAllUsersRef("refs/starred-changes/01/1/1xx1");
+    assertNotAllUsersRef("refs/starred-changes/01/1/");
+    assertNotAllUsersRef("refs/starred-changes/01/1");
+    assertNotAllUsersRef("refs/starred-changes/35/1234/1001");
+    assertNotAllUsersRef("refs/starred-changeS/01/1/1001");
+  }
+
+  @Test
+  public void parseDraftRefNames() {
+    assertAllUsersRef(1, "refs/draft-comments/01/1/1001");
+    assertAllUsersRef(1234, "refs/draft-comments/34/1234/1001");
+
+    assertNotRef("refs/draft-comments/01/1/1001");
+    assertNotAllUsersRef(null);
+    assertNotAllUsersRef("refs/draft-comments/01/1/1xx1");
+    assertNotAllUsersRef("refs/draft-comments/01/1/");
+    assertNotAllUsersRef("refs/draft-comments/01/1");
+    assertNotAllUsersRef("refs/draft-comments/35/1234/1001");
+    assertNotAllUsersRef("refs/draft-commentS/01/1/1001");
+  }
+
+  @Test
+  public void toRefPrefix() {
+    assertThat(new Change.Id(1).toRefPrefix()).isEqualTo("refs/changes/01/1/");
+    assertThat(new Change.Id(1234).toRefPrefix()).isEqualTo("refs/changes/34/1234/");
+  }
+
+  @Test
+  public void parseRefNameParts() {
+    assertRefPart(1, "01/1");
+
+    assertNotRefPart(null);
+    assertNotRefPart("");
+
+    // This method assumes that the common prefix "refs/changes/" was removed.
+    assertNotRefPart("refs/changes/01/1");
+
+    // Invalid characters.
+    assertNotRefPart("01a/1");
+    assertNotRefPart("01/a1");
+
+    // Mismatched shard.
+    assertNotRefPart("01/23");
+
+    // Shard too short.
+    assertNotRefPart("1/1");
+  }
+
+  private static void assertRef(int changeId, String refName) {
+    assertThat(Change.Id.fromRef(refName)).isEqualTo(new Change.Id(changeId));
+  }
+
+  private static void assertNotRef(String refName) {
+    assertThat(Change.Id.fromRef(refName)).isNull();
+  }
+
+  private static void assertAllUsersRef(int changeId, String refName) {
+    assertThat(Change.Id.fromAllUsersRef(refName)).isEqualTo(new Change.Id(changeId));
+  }
+
+  private static void assertNotAllUsersRef(String refName) {
+    assertThat(Change.Id.fromAllUsersRef(refName)).isNull();
+  }
+
+  private static void assertRefPart(int changeId, String refName) {
+    assertEquals(new Change.Id(changeId), Change.Id.fromRefPart(refName));
+  }
+
+  private static void assertNotRefPart(String refName) {
+    assertNull(Change.Id.fromRefPart(refName));
+  }
+}