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xcat-core/xCAT-test/unit
Daniel Hilst 42e4c160d4 refactor(build): share sh() and usage() between the two builders
Both builders defined their own sh() and usage(). The usage() copies differed
only in spelling, but the sh() copies disagreed about what they return:
buildrpms.pl shifted system()'s result into an exit code, builddebs.pl returned
the raw wait status. The same command therefore reported 1 from one builder and
256 from the other, and a caller comparing sh() against a particular code was
correct in only one of them. Both current call sites only test for zero, so
nothing was broken yet.

BuildUtils.pm now provides both, shifting the status as buildrpms.pl did.
pod2usage reads the POD of the running program, so each builder keeps its own
help text while sharing how it is printed and the status it exits with.

sh() echoed the command under the builder's own --verbose flag, which a shared
function cannot see. $BuildUtils::VERBOSE is set once after option parsing
instead of threading the flag through every call site.

Covered by tests: that sh() returns the exit code rather than the wait status
it is packed into, and that a verbose run still echoes the command.

Signed-off-by: Daniel Hilst <392820+dhilst@users.noreply.github.com>
2026-09-02 12:39:44 -03:00
..

xCAT-test/unit

Unit tests. These run against the source tree only -- no xCAT installation, no running daemons, no management node.

They are executed on every pull request by the xcat_test GitHub Actions workflow, which calls run_unit_tests() in github_action_xcat_test.pl:

prove -r xCAT-test/unit

You can run exactly the same thing from a clean checkout:

cd <xcat-core checkout>
prove -r xCAT-test/unit

What belongs here

A test belongs in unit/ when everything it needs is in the checkout: plugin and library sources, kickstart/preseed/subiquity templates, postscripts, packaging metadata. Such a test asserts on rendered output or module logic and reaches the repository root through FindBin:

use FindBin;
use lib "$FindBin::Bin/../../perl-xCAT";
use lib "$FindBin::Bin/../../xCAT-server/lib/perl";

Because of those FindBin paths the tests only work from a source tree. The copy installed under /opt/xcat/share/xcat/tools/autotest/unit is not a substitute -- ../.. resolves to /opt/xcat/share/xcat/tools there and the tests die or silently skip. The CI takes a copy of the checkout before the build for this reason; see preserve_source_tree().

What does not belong here

Anything that needs an installed xCAT, a populated /install, a real service binary or a live daemon. Those go in ../integration and run on a management node through xcattest. Both suites run on every pull request -- the workflow installs xCAT on the runner and then runs the ci_test cases against it -- so putting a test in integration/ does not cost it CI coverage. What differs is what each suite is allowed to depend on, and that unit tests also run standalone from a bare checkout with no xCAT at all.

The distinction matters because a test that needs an absent environment does not fail -- it calls plan skip_all and reports as skipped. A handful of those in a suite of several hundred assertions is easy to stop reading. Keeping the two kinds in separate directories means a skip in unit/ is a real signal rather than routine noise.

Guarding on a source file, on the other hand, is fine and common here:

plan skip_all => "compute.subiquity.tmpl not found" unless -f $tmpl_path;

That guard never fires when the tree is intact.