BaseNormsFormatTestCase
Abstract class to do basic tests for a norms format. NOTE: This test focuses on the norms impl, nothing else. The stretch goal is for this test to be so thorough in testing a new NormsFormat that if this test passes, then all Lucene tests should also pass. Ie, if there is some bug in a given NormsFormat that this test fails to catch then this test needs to be improved!
Functions
This test is the best effort at verifying that checkIntegrity doesn't miss any files. It tests that the combination of opening a reader and calling checkIntegrity on it reads all bytes of all files.
The purpose of this test is to make sure that bulk merge doesn't accumulate useless data over runs.
Calls close multiple times on closeable codec apis
a more thorough n-common that tests all low bpv
Tests exception handling on write and openInput/createOutput
a more thorough n-common that tests all low bpv and sparse docs