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109 lines
3.5 KiB
Plaintext
109 lines
3.5 KiB
Plaintext
sndfile-regtest
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===============
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The 'sndfile-regtest' program is a regression test-suite for libsndile.
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This program is intended to allow anyone who has an interest in the
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reliability and correctness of libsndfile to do their own regression
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testing. From the point of view of the libsndfile developers, this
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program now allows for distributed regression testing of libsndfile
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which will make libsndfile better.
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How Does it Work
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----------------
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Anyone who wishes to take part in the distributed regression testing of
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libsndfile can download the regression test program and install it.
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Once installed the user can start collecting files and adding them to
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their own personal database. Then, as new versions of libsndfile come
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out, the user should test the new library version against their database
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of files (instructions below).
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Any files which were successfully added to the database in the past but
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now fail the check with the new library version represent a regression.
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The user should then contact the libsndfile developers so that a copy
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of the test file can be made available to the developers.
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Requirements
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------------
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The regression test program uses sqlite3 as the database engine. On
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Debian, the required packages are :
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sqlite3
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libsqlite3-0
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libsqlite3-dev
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but similar packages should be available on any other Linux style
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system.
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The regression test currently only compiles under Unix-like systems.
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At some time in the future the regression test will distributed along
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with the libsndfile source code distribution.
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Organization of Files
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---------------------
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The regession test program keeps its database file in the directory it
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is run from. In addition, the database only contains information about
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the files, not the files themselves.
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This means that database file should probably be kept in the same
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directory (or a directory above) the test files.
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Setting it Up for the First Time
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--------------------------------
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The sndfile-regtest program should be on your PATH. You can then cd into
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the directory where you intend to keep you test files and
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run the command:
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sndfile-regtest --create-db
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which creates a file named '.sndfile-regtest.db' in the current directory.
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Files can then be added to the database using the command:
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sndfile-regtest --add-file file1.wav
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The --add-file option allows more than one file to be added at a time
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using:
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sndfile-regtest --add-file file1.wav file2.aif .....
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Checking Files
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--------------
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One or more files that have already been added to the database can be
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checked using:
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sndfile-regtest --check-file file1.wav file2.aif .....
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It is also possible to check all files in the database using:
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sndfile-regtest --check-all
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Running a Regression Test
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-------------------------
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Once you have a collection of files and a database it is possible to test
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new versions of libsndfile before you install them. If for instance you
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have just compiled a new version of libsndfile in the directory
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/usr/src/libsndfile-X.Y.Z, then you can use an existing sndfile-regtest
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binary with the new libsndfile using something like:
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LD_PRELOAD=/usr/src/libsndfile-X.Y.Z/src/.libs/libsndfile.so.X.Y.Z \
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sndfile-regtest --check-all
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Reporting Regressions
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---------------------
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Any user who finds a file which was added to the regression database with
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an earlier version of libsndfile and then fails the check with a later
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version of the library should contact the author (erikd at mega dash nerd
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dot com). If possible place the file on a web server and email the author
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a link to it.
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