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From: "msc at linux dot ibm.com" <sourceware-bugzilla@sourceware.org>
To: glibc-bugs@sourceware.org
Subject: [Bug build/25836] New: Test container not properly created when
 running single test
Date: Thu, 16 Apr 2020 14:20:15 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D25836

            Bug ID: 25836
           Summary: Test container not properly created when running
                    single test
           Product: glibc
           Version: unspecified
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: build
          Assignee: unassigned at sourceware dot org
          Reporter: msc at linux dot ibm.com
                CC: carlos at redhat dot com
  Target Milestone: ---

I recently noticed that trying to run a single containerized test using `ma=
ke
test t=3D<...>` fails if run before `make check`.

For example, right after building glibc:
$ make test t=3Dstdlib/tst-system
[...]
FAIL: stdlib/tst-system
original exit status 1
error: test-container.c:766: Cannot create testroot lock.

I've tried this with many tests that use containers and the results are alw=
ays
the same.

Apparently this happens because testroot.* directories are not properly cre=
ated
in such cases:
~/build/glibc$ ls testroot.pristine
ls: cannot access 'testroot.pristine': No such file or directory
~/build/glibc$ ls testroot.root
ls: cannot access 'testroot.root': No such file or directory

The rule to create testroot.pristine is in the top-level Makefile:
$(tests-container) $(addsuffix /tests,$(subdirs)) : \
                $(objpfx)testroot.pristine/install.stamp

However `tests-container` is only defined by each subdir Makefile, so this =
rule
is never triggered for individual tests, as `tests-container` is always emp=
ty
in
this context.

Tested with commit c580e6466d6da8262820cdbad19f32c5546226cf.

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