Github user tweise commented on a diff in the pull request:
https://github.com/apache/incubator-apex-core/pull/297#discussion_r58737026
--- Diff: docs/apex_development_setup.md ---
@@ -94,6 +94,38 @@ When the run completes successfully, you should see a
new directory named `myape
The build should create the application package file
`myapexapp/target/myapexapp-1.0-SNAPSHOT.apa`. This application package can
then be used to launch example application via **dtCli**, or other visual
management tools. When running, this application will generate a stream of
random numbers and print them out, each prefixed by the string `hello world:`.
+Running Unit Tests
+----
+To run unit tests on Linux or OSX, simply run the usual maven command, for
example: `mvn test`.
+
+On Windows, an additional file, `winutils.exe`, is required; download it
from
+<https://github.com/srccodes/hadoop-common-2.2.0-bin/archive/master.zip>
+and unpack the archive to, say, `C:\hadoop`; this file should be present
under
+`hadoop-common-2.2.0-bin-master\bin` within it.
+
+You can now run unit tests from the command line by specifying the maven
+property `hadoop.home.dir`, for example:
+
+ mvn
-Dhadoop.home.dir=c:\hadoop\Software\hadoop-common-2.2.0-bin-master test
+
+or set the environment variable separately:
+
+ set HADOOP_HOME=c:\hadoop\Software\hadoop-common-2.2.0-bin-master
+ mvn test
+
+To run unit tests from within your IDE, set the `HADOOP_HOME` environment
--- End diff --
Should mention that first as it covers command line as well.
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