Daniel Barclay (Drill/MapR) created DRILL-1744:
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Summary: Many unit tests fail when run outside Maven (e.g., in
Eclipse)
Key: DRILL-1744
URL: https://issues.apache.org/jira/browse/DRILL-1744
Project: Apache Drill
Issue Type: Bug
Reporter: Daniel Barclay (Drill/MapR)
Many of the JUnit unit tests fail when run in Eclipse even though they seem to
work when run using Maven.
It seems that some of the setup required to run the tests is missing from the
test classes and is only in the Maven configuration.
(To confirm that it's not Eclipse-specific, I tried checking using the plain
JUnit test runner from the command line, but don't know what all to put in the
classpath (e.g., to eliminate errors such as "java.lang.SecurityException:
Invalid signature file digest for Manifest main attributes").)
In invoking "Run As" . "JUnit Test" on drill-java-exec, 48 of 375 test methods
fail with errors. (None fail assertions.) The status of the remaining 215
isn't clear; an out-of-memory failure hangs the JUnit run.
In drill-jdbc, 125 of the 153 tests yield errors.
In drill-storage-hbase, most tests yield errors.
In drill-common, in CheckStorageConfig, one test fails with an error and the
other fails an assertion.
The drill-jdbc failures seem to be because the tests don't disable the Jetty
server. (Running some test method individually works, and running multiple
tests yields BindExceptions for all but the first.)
Strangely, running org.apache.drill.exec.physical.impl.TopN.TestSimpleTopN by
itself also yields a BindException.
The tests should probably be written so that they run in environments other
than a Maven run (e.g., in common JUnit runners) as much as possible.
Any settings that can't be configured in the tests (e.g., JVM memory settings?)
should be documented somewhere (maybe in the Developing Drill pages of the
wiki, maybe somewhere in the code). (Possibly some code should check
Runtime.getRuntime().maxMemory() and warn when appropriate.)
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