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Posted to common-dev@hadoop.apache.org by "Jakob Homan (JIRA)" <ji...@apache.org> on 2015/05/20 23:51:01 UTC
[jira] [Created] (HADOOP-12009)
FileSystemContractBaseTest:testListStatus should not assume listStatus
returns sorted results
Jakob Homan created HADOOP-12009:
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Summary: FileSystemContractBaseTest:testListStatus should not assume listStatus returns sorted results
Key: HADOOP-12009
URL: https://issues.apache.org/jira/browse/HADOOP-12009
Project: Hadoop Common
Issue Type: Improvement
Components: test
Reporter: Jakob Homan
Priority: Minor
FileSystem.listStatus does not guarantee that implementations will return sorted entries:
{code} /**
* List the statuses of the files/directories in the given path if the path is
* a directory.
*
* @param f given path
* @return the statuses of the files/directories in the given patch
* @throws FileNotFoundException when the path does not exist;
* IOException see specific implementation
*/
public abstract FileStatus[] listStatus(Path f) throws FileNotFoundException,
IOException;{code}
However, FileSystemContractBaseTest, expects the elements to come back sorted:
{code} Path[] testDirs = { path("/test/hadoop/a"),
path("/test/hadoop/b"),
path("/test/hadoop/c/1"), };
// ...
paths = fs.listStatus(path("/test/hadoop"));
assertEquals(3, paths.length);
assertEquals(path("/test/hadoop/a"), paths[0].getPath());
assertEquals(path("/test/hadoop/b"), paths[1].getPath());
assertEquals(path("/test/hadoop/c"), paths[2].getPath());{code}
We should pass this test as long as all the paths are there, regardless of their ordering.
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