The results generated by running Mathematica on the integration test suite are available for viewing.
To view a PDF file of raw test results, click on one of the following integrand types:

These PDF files show the integration problems for which Mathematica either
failed to get an
antiderivative or returned a nonoptimal one.
Each entry consists of the following items:

a phrase indicating the type of deficiency;

a list of the integrand, integration variable, number of rule applications desired, and 0;

the optimal antiderivative as contained in the test suite; and