adoroszlai commented on a change in pull request #1205: HDDS-1886. Use
ArrayList#clear to address audit failure scenario
URL: https://github.com/apache/hadoop/pull/1205#discussion_r309608143
##########
File path:
hadoop-hdds/common/src/test/java/org/apache/hadoop/ozone/audit/TestOzoneAuditLogger.java
##########
@@ -153,7 +153,7 @@ private void verifyLog(String expected) throws IOException
{
assertTrue(lines.size() != 0);
assertTrue(expected.equalsIgnoreCase(lines.get(0)));
//empty the file
- lines.remove(0);
+ lines.clear();
Review comment:
@dineshchitlangia good idea to avoid unnecessary assumptions.
Here are some further suggestions:
1. Wrap assertions and cleanup in `try` and `finally`, respectively.
Otherwise a failed assertion would cause all further independent test cases to
also fail due to leftover content in the file. (This one is not specific to
multi-line cases.)
2. Make `verifyLog` accept `String...` and check each expected line. Also,
retry reading the file until it has enough lines instead of being non-empty.
3. I think using `assertEquals` would make it easier to spot differences
between expected and actual values. (I'm not sure case-ignorance is really
important. Currently the test passes with strict case check, too.)
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