[HADOOP-14247] FileContextMainOperationsBaseTest should clean up test root path

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.8.0
• Fix Version/s: 2.9.0, 3.0.0-alpha4, 2.8.2
• Component/s: fs, test
• Target Version/s: 2.8.1, 3.0.0-alpha4
• Hadoop Flags: Reviewed
• Assignee: Mingliang Liu
• Reporter: Mingliang Liu
• Created: 27/Mar/17 23:36
• Updated: 08/Jun/17 00:13
• Resolved: 29/Mar/17 22:44

Description

fileContextTestHelper will create random test root directory for each test case, say $RANDOM. After test, we only delete the $RANDOM/test directory in tearDown(). This will leave dangling directories under the test-dir directory. For S3A with S3Guard enabled, those useless test directories will stay in DynamoDB forever. Let's clear out the test root path, which is (generated randomly and) safe to remove.