HADOOP-8013 ViewFileSystem does not honor setVerifyChecksum (Missed a file) (Daryn Sharp via bobby)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1240385 13f79535-47bb-0310-9956-ffa450edef68

hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/viewfs/TestViewFileSystemDelegation.java

@@ -0,0 +1,102 @@
+/**
+ * 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.hadoop.fs.viewfs;
+
+import java.io.IOException;
+import java.net.URI;
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.FileSystem;
+import org.apache.hadoop.fs.FileSystemTestHelper;
+import org.apache.hadoop.fs.FsConstants;
+import org.apache.hadoop.fs.LocalFileSystem;
+import org.apache.hadoop.fs.Path;
+import org.junit.*;
+import static org.junit.Assert.*;
+
+/**
+ * Verify that viewfs propagates certain methods to the underlying fs 
+ */
+public class TestViewFileSystemDelegation { //extends ViewFileSystemTestSetup {
+  static Configuration conf;
+  static FileSystem viewFs;
+  static FakeFileSystem fs1;
+  static FakeFileSystem fs2;
+
+  @BeforeClass
+  public static void setup() throws Exception {
+    conf = ViewFileSystemTestSetup.configWithViewfsScheme();    
+    fs1 = setupFileSystem(new URI("fs1:/"), FakeFileSystem.class);
+    fs2 = setupFileSystem(new URI("fs2:/"), FakeFileSystem.class);
+    viewFs = FileSystem.get(FsConstants.VIEWFS_URI, conf);
+  }
+  
+  static FakeFileSystem setupFileSystem(URI uri, Class clazz)
+      throws Exception {
+    String scheme = uri.getScheme();
+    conf.set("fs."+scheme+".impl", clazz.getName());
+    FakeFileSystem fs = (FakeFileSystem)FileSystem.get(uri, conf);
+    assertEquals(uri, fs.getUri());
+    Path targetPath = FileSystemTestHelper.getAbsoluteTestRootPath(fs);
+    ConfigUtil.addLink(conf, "/mounts/"+scheme, targetPath.toUri());
+    return fs;
+  }
+
+  @Test
+  public void testSanity() {
+    assertEquals("fs1:/", fs1.getUri().toString());
+    assertEquals("fs2:/", fs2.getUri().toString());
+  }
+  
+  @Test
+  public void testVerifyChecksum() throws Exception {
+    checkVerifyChecksum(false);
+    checkVerifyChecksum(true);
+  }
+
+  void checkVerifyChecksum(boolean flag) {
+    viewFs.setVerifyChecksum(flag);
+    assertEquals(flag, fs1.getVerifyChecksum());
+    assertEquals(flag, fs2.getVerifyChecksum());
+  }
+
+  static class FakeFileSystem extends LocalFileSystem {
+    boolean verifyChecksum = true;
+    URI uri;
+    
+    @Override
+    public void initialize(URI uri, Configuration conf) throws IOException {
+      super.initialize(uri, conf);
+      this.uri = uri;
+    }
+    
+    @Override
+    public URI getUri() {
+      return uri;
+    }
+    
+    @Override
+    public void setVerifyChecksum(boolean verifyChecksum) {
+      this.verifyChecksum = verifyChecksum;
+    }
+    
+    public boolean getVerifyChecksum(){
+      return verifyChecksum;
+    }
+  }
+}