Replace strange $TEST_FUNCTIONS variable/expansion thing with
something more like what we use in nbdkit, a simple tests/functions.sh
script that gets sourced into each test script.
Update the common submodule to get:
commit 8137d47d0e654065391151eb275e3b64f230f6f5
Author: Richard W.M. Jones <rjones@redhat.com>
Date: Thu Feb 13 11:13:55 2025 +0000
mlcustomize, mltools: Replace $TEST_FUNCTIONS
TEST_FUNCTIONS is being removed from libguestfs and guestfs-tools (it
was removed from virt-v2v a while back). Make the same adjustment in
the common submodule.
(and some other commits which are not relevant to libguestfs)
Apply this change across all the shell scripts containing tests.
Additionally this defines the environment variables $abs_srcdir,
$abs_builddir, $top_srcdir, $top_builddir, $abs_top_srcdir and
$abs_top_builddir which can now be used throughout test scripts.
All tests run under the ./run binary. For a long time the ./run
binary has set the $PATH environment variable to contain all of the
directories with binaries in them.
Therefore there is no reason to use ../fish/guestfish instead of just
plain guestfish (and the same applies to other built binaries).
The test used the external 'od' command to compare the output of
guestfish with what it's supposed to be. Unfortunately by default
this outputs groups of 2-byte words, with the words' endianness
affected by the current hardware endianness. For example:
x86-64$ echo -n ab | od
0000000 061141
0000002
ppc64$ echo -n ab | od
0000000 060542
0000002
By using 'od -b' instead we can output bytes instead of words, and
there is no endianness issue, and the output is clearer:
x86-64$ echo -n ab | od -b
0000000 141 142
0000002
ppc64$ echo -n ab | od -b
0000000 141 142
0000002
When these tests were originally in the old regressions/ directory,
they used to refer to guestfish via the path '../fish/guestfish'.
Some of the tests were also called 'test-guestfish-*'.
Now that the tests have been moved into the fish/ directory, neither
of these things make sense. So change the relative path to
'./guestfish' and rename all 'test-guestfish-*' as 'test-*'.
