tests/docker: add a docker-exec-copy-test

This provides test machinery for checking the QEMU copying logic works
properly. It takes considerably less time to run than starting a
debootstrap only for it to fail later. I considered adding a remove
command to docker.py but figured that might be gold plating given the
relative size of the containers compared to the ones with actual stuff
in them.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20210202134001.25738-7-alex.bennee@linaro.org>

1 files changed, 6 insertions, 1 deletions

diff --git a/tests/docker/docker.py b/tests/docker/docker.py
index 39da3fefcf..d28df4c140 100755
--- a/tests/docker/docker.py
+++ b/tests/docker/docker.py
@@ -438,6 +438,9 @@ class BuildCommand(SubCommand):
                             help="""Specify a binary that will be copied to the
                             container together with all its dependent
                             libraries""")
+        parser.add_argument("--skip-binfmt",
+                            action="store_true",
+                            help="""Skip binfmt entry check (used for testing)""")
         parser.add_argument("--extra-files", nargs='*',
                             help="""Specify files that will be copied in the
                             Docker image, fulfilling the ADD directive from the
@@ -466,7 +469,9 @@ class BuildCommand(SubCommand):
             docker_dir = tempfile.mkdtemp(prefix="docker_build")
 
             # Validate binfmt_misc will work
-            if args.include_executable:
+            if args.skip_binfmt:
+                qpath = args.include_executable
+            elif args.include_executable:
                 qpath, enabled = _check_binfmt_misc(args.include_executable)
                 if not enabled:
                     return 1