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https://issues.apache.org/jira/browse/MADLIB-1138?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16093594#comment-16093594
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ASF GitHub Bot commented on MADLIB-1138:
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Github user cooper-sloan commented on the issue:
https://github.com/apache/incubator-madlib/pull/151
LGTM. Documentation
[here](https://cwiki.apache.org/confluence/display/MADLIB/Code+Coverage+Guide)
> Add basic code coverage support
> -------------------------------
>
> Key: MADLIB-1138
> URL: https://issues.apache.org/jira/browse/MADLIB-1138
> Project: Apache MADlib
> Issue Type: Task
> Components: Build System
> Reporter: Ed Espino
>
> For developers, add cmake option configuration option ENABLE_COVERAGE which
> will introduce gcov compilation and linking options (-fprofile-arcs
> -ftest-coverage). Two supporting make targets are introduced:
> * GenCoverageReport - Capture gcov counters and generate report
> * ResetCoverageCounters - Zero counters gcov counters
> Features:
> * Counters will be captured in build/CodeCoverage.info file. System and Third
> party metrics will be filtered out of coverage info file and stored in
> CodeCoverage-filtered.info
> * HTML report will be created in build/CodeCoverageReport directory
> Usage:
> * cmake -DENABLE_COVERAGE=ON ..
> * <build, install and execute desired tests as usual>
> * make GenCoverageReport
> * <To view report, open build/CodeCoverageReport/index.html in browser>
> * make ResetCoverageCounters
> * <Run another test>
> * make GenCoverageReport
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