1 files changed, 90 insertions, 0 deletions
diff --git a/javatests/com/google/gerrit/server/query/change/RegexPathPredicateTest.java b/javatests/com/google/gerrit/server/query/change/RegexPathPredicateTest.java
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+++ b/javatests/com/google/gerrit/server/query/change/RegexPathPredicateTest.java
@@ -0,0 +1,90 @@
+// Copyright (C) 2010 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.server.query.change;
+
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
+import com.google.gerrit.reviewdb.client.Change;
+import com.google.gerrit.reviewdb.client.Project;
+import com.google.gwtorm.server.OrmException;
+import java.util.Arrays;
+import org.junit.Test;
+
+public class RegexPathPredicateTest {
+  @Test
+  public void prefixOnlyOptimization() throws OrmException {
+    RegexPathPredicate p = predicate("^a/b/.*");
+    assertTrue(p.match(change("a/b/source.c")));
+    assertFalse(p.match(change("source.c")));
+
+    assertTrue(p.match(change("a/b/source.c", "a/c/test")));
+    assertFalse(p.match(change("a/bb/source.c")));
+  }
+
+  @Test
+  public void prefixReducesSearchSpace() throws OrmException {
+    RegexPathPredicate p = predicate("^a/b/.*\\.[ch]");
+    assertTrue(p.match(change("a/b/source.c")));
+    assertFalse(p.match(change("a/b/source.res")));
+    assertFalse(p.match(change("source.res")));
+
+    assertTrue(p.match(change("a/b/a.a", "a/b/a.d", "a/b/a.h")));
+  }
+
+  @Test
+  public void fileExtension_Constant() throws OrmException {
+    RegexPathPredicate p = predicate("^.*\\.res");
+    assertTrue(p.match(change("test.res")));
+    assertTrue(p.match(change("foo/bar/test.res")));
+    assertFalse(p.match(change("test.res.bar")));
+  }
+
+  @Test
+  public void fileExtension_CharacterGroup() throws OrmException {
+    RegexPathPredicate p = predicate("^.*\\.[ch]");
+    assertTrue(p.match(change("test.c")));
+    assertTrue(p.match(change("test.h")));
+    assertFalse(p.match(change("test.C")));
+  }
+
+  @Test
+  public void endOfString() throws OrmException {
+    assertTrue(predicate("^a$").match(change("a")));
+    assertFalse(predicate("^a$").match(change("a$")));
+
+    assertFalse(predicate("^a\\$").match(change("a")));
+    assertTrue(predicate("^a\\$").match(change("a$")));
+  }
+
+  @Test
+  public void exactMatch() throws OrmException {
+    RegexPathPredicate p = predicate("^foo.c");
+    assertTrue(p.match(change("foo.c")));
+    assertFalse(p.match(change("foo.cc")));
+    assertFalse(p.match(change("bar.c")));
+  }
+
+  private static RegexPathPredicate predicate(String pattern) {
+    return new RegexPathPredicate(pattern);
+  }
+
+  private static ChangeData change(String... files) throws OrmException {
+    Arrays.sort(files);
+    ChangeData cd = ChangeData.createForTest(new Project.NameKey("project"), new Change.Id(1), 1);
+    cd.setCurrentFilePaths(Arrays.asList(files));
+    return cd;
+  }
+}