7 files declare their use of FormatDecoderTestBase in Bibliography & Citation 8

BibtexCaseDecodeTest.php in modules/bibcite_bibtex/tests/src/Kernel/BibtexCaseDecodeTest.php

BibtexDecodeTest.php in modules/bibcite_bibtex/tests/src/Kernel/BibtexDecodeTest.php

Endnote7DecodeTest.php in modules/bibcite_endnote/tests/src/Kernel/Endnote7DecodeTest.php

Endnote8DecodeTest.php in modules/bibcite_endnote/tests/src/Kernel/Endnote8DecodeTest.php

MarcDecodeTest.php in modules/bibcite_marc/tests/src/Kernel/MarcDecodeTest.php

RisDecodeTest.php in modules/bibcite_ris/tests/src/Kernel/RisDecodeTest.php

TaggedDecodeTest.php in modules/bibcite_endnote/tests/src/Kernel/TaggedDecodeTest.php