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To be able to see the level of coverage with the current test suite,
do the following:
- Make sure gcov is installed
- Compile the MySQL distribution with BUILD/compile-pentium64-gcov (if your
machine does not have a pentium CPU, hack this script, or just live with
the pentium-specific stuff)
- In the mysql-test directory, run this command: ./mysql-test-run -gcov
- To see the level of coverage for a given source file:
grep -1 source_file_name ../mysql-test-gcov.msg
- To see which lines are not yet covered, look at source_file_name.gcov in
the source tree. You can find this by doing something like:
find source-directory -name "mysqld.cc.gcov"
Then think hard about a test case that will cover those lines, and write
one!
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