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>30.4. Test Coverage Examination</A
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>    The PostgreSQL source code can be compiled with coverage testing
    instrumentation, so that it becomes possible to examine which
    parts of the code are covered by the regression tests or any other
    test suite that is run with the code.  This is currently supported
    when compiling with GCC and requires the <TT
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>gcov</TT
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    and <TT
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>lcov</TT
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>    A typical workflow would look like this:
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>./configure --enable-coverage ... OTHER OPTIONS ...
gmake
gmake check # or other test suite
gmake coverage-html</PRE
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    Then point your HTML browser
    to <TT
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>coverage/index.html</TT
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    The <TT
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>gmake</TT
> commands also work in subdirectories.
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>    To reset the execution counts between test runs, run:
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>gmake coverage-clean</PRE
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