Get Total Testcase Number in JUnit Report File with grep and awk

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Under $JENKINS_HOME/jobs/GSP/workspace/build/work/plugins(we call this folder as "basedir"), there are many bundle folders. Some of them were compiled, so there are many test report file "TEST-.xml" in /build/unittest_report, for example, com.boco.gsp.element.decision.config/build/unittest_report/TEST-com.boco.gsp.decision.config.parser.DecisionParserTest.xml. The content of this file is:

<?xml version="1.0" encoding="UTF-8" ?>

...

In this case the testcase number is 3 according to 'test="3"'. Now we need get the total number of testcases with following steps:

1. find all these test report file under ${basedir};

2. get the testcase number;

3. add all these number up;

4. print the result;

We achieve this by the following command under ${basedir}:

grep -Po '(?<=tests=")\d+' */TEST-.xml | awk -F':' '{SUM += $2; print $1 ": " $2} END {print "Total: " SUM}'

"-P" let grep interpret pattern as perl regular expression. "-o" means only output the matched part. "(?>=...)" eliminates the text in parenthesis. "-F" of awk specify the delimiter. This command works on zsh because the "*/" syntax only valid on zsh. If you use bash, you have to modify this.

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