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HADOOP-17365. Contract test for renaming over existing file is too lenient (#2447) 

Contributed by Attila Doroszlai.

Change-Id: I21c29256b52449b7fea335704b3afa02e39c6a39
This commit is contained in:
Doroszlai, Attila 2020-11-11 22:20:09 +01:00 committed by Steve Loughran
parent 8e4b1cd192
commit 47131cdf7c
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GPG Key ID: D22CF846DBB162A0
1 changed files with 26 additions and 12 deletions
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38
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/contract/AbstractContractRenameTest.java
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@ -104,29 +104,43 @@ public abstract class AbstractContractRenameTest extends
assertIsFile(destFile);
boolean renameOverwritesDest = isSupported(RENAME_OVERWRITES_DEST);
boolean renameReturnsFalseOnRenameDestExists =
!isSupported(RENAME_RETURNS_FALSE_IF_DEST_EXISTS);
isSupported(RENAME_RETURNS_FALSE_IF_DEST_EXISTS);
assertFalse(RENAME_OVERWRITES_DEST + " and " +
RENAME_RETURNS_FALSE_IF_DEST_EXISTS + " cannot be both supported",
renameOverwritesDest && renameReturnsFalseOnRenameDestExists);
String expectedTo = "expected rename(" + srcFile + ", " + destFile + ") to ";
boolean destUnchanged = true;
try {
// rename is rejected by returning 'false' or throwing an exception
boolean renamed = rename(srcFile, destFile);
destUnchanged = !renamed;
if (renameOverwritesDest) {
// the filesystem supports rename(file, file2) by overwriting file2
assertTrue("Rename returned false", renamed);
destUnchanged = false;
} else {
// rename is rejected by returning 'false' or throwing an exception
if (renamed && !renameReturnsFalseOnRenameDestExists) {
//expected an exception
assertTrue(expectedTo + "overwrite destination, but got false",
renamed);
} else if (renameReturnsFalseOnRenameDestExists) {
assertFalse(expectedTo + "be rejected with false, but destination " +
"was overwritten", renamed);
} else if (renamed) {
String destDirLS = generateAndLogErrorListing(srcFile, destFile);
getLogger().error("dest dir {}", destDirLS);
fail("expected rename(" + srcFile + ", " + destFile + " ) to fail," +
" but got success and destination of " + destDirLS);
}
fail(expectedTo + "be rejected with exception, but got overwritten");
} else {
fail(expectedTo + "be rejected with exception, but got false");
}
} catch (FileAlreadyExistsException e) {
// rename(file, file2) should throw exception iff
// it neither overwrites nor returns false
assertFalse(expectedTo + "overwrite destination, but got exception",
renameOverwritesDest);
assertFalse(expectedTo + "be rejected with false, but got exception",
renameReturnsFalseOnRenameDestExists);
handleExpectedException(e);
}
// verify that the destination file is as expected based on the expected
// outcome
verifyFileContents(getFileSystem(), destFile,