svn commit: r1644372 - /jackrabbit/oak/trunk/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/segment/file/JournalReaderTest.java

[md...@apache.org]

Author: mduerig
Date: Wed Dec 10 11:06:13 2014
New Revision: 1644372

URL: http://svn.apache.org/r1644372
Log:
OAK-2323: SegmentMK consistency check
Unit test for JournalReader

Added:
    jackrabbit/oak/trunk/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/segment/file/JournalReaderTest.java

Added: jackrabbit/oak/trunk/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/segment/file/JournalReaderTest.java
URL: http://svn.apache.org/viewvc/jackrabbit/oak/trunk/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/segment/file/JournalReaderTest.java?rev=1644372&view=auto
==============================================================================
--- jackrabbit/oak/trunk/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/segment/file/JournalReaderTest.java (added)
+++ jackrabbit/oak/trunk/oak-core/src/test/java/org/apache/jackrabbit/oak/plugins/segment/file/JournalReaderTest.java Wed Dec 10 11:06:13 2014
@@ -0,0 +1,81 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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 org.apache.jackrabbit.oak.plugins.segment.file;
+
+import static com.google.common.io.ByteStreams.newDataInput;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+import java.io.DataInput;
+import java.io.IOException;
+import java.util.LinkedList;
+
+import org.junit.Test;
+
+public class JournalReaderTest {
+
+    @Test
+    public void testEmpty() throws IOException {
+        assertTrue(JournalReader.heads(getJournal("")).isEmpty());
+    }
+
+    @Test
+    public void testSingleton() throws IOException {
+        String journal = "one 1";
+        LinkedList<String> heads = JournalReader.heads(getJournal(journal));
+        assertEquals(1, heads.size());
+        assertEquals("one", heads.get(0));
+    }
+
+    @Test
+    public void testMultiple() throws IOException {
+        String journal = "one 1\ntwo 2\nthree 3";
+        LinkedList<String> heads = JournalReader.heads(getJournal(journal));
+        assertEquals(3, heads.size());
+        assertEquals("one", heads.get(0));
+        assertEquals("two", heads.get(1));
+        assertEquals("three", heads.get(2));
+    }
+
+    @Test
+    public void testSpaces() throws IOException {
+        String journal = "\n \n  \n   ";
+        LinkedList<String> heads = JournalReader.heads(getJournal(journal));
+        assertEquals(3, heads.size());
+        assertEquals("", heads.get(0));
+        assertEquals("", heads.get(1));
+        assertEquals("", heads.get(2));
+    }
+
+    @Test
+    public void testIgnoreInvalid() throws IOException {
+        String journal = "one 1\ntwo 2\ninvalid\nthree 3";
+        LinkedList<String> heads = JournalReader.heads(getJournal(journal));
+        assertEquals(3, heads.size());
+        assertEquals("one", heads.get(0));
+        assertEquals("two", heads.get(1));
+        assertEquals("three", heads.get(2));
+    }
+
+    private static DataInput getJournal(String s) {
+        return newDataInput(s.getBytes());
+    }
+
+}