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support/testing: add pv runtime test

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Signed-off-by: Julien Olivain <ju.o@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
This commit is contained in:
Julien Olivain 2024-08-24 16:19:35 +02:00 committed by Thomas Petazzoni
parent f366528987
commit 8c5e4be97c
2 changed files with 58 additions and 0 deletions
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@ -1963,6 +1963,7 @@ F: support/testing/tests/package/test_pciutils.py
F: support/testing/tests/package/test_perftest.py
F: support/testing/tests/package/test_pigz.py
F: support/testing/tests/package/test_postgresql.py
F: support/testing/tests/package/test_pv.py
F: support/testing/tests/package/test_python_distro.py
F: support/testing/tests/package/test_python_gnupg.py
F: support/testing/tests/package/test_python_hkdf.py

57
support/testing/tests/package/test_pv.py Normal file
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@ -0,0 +1,57 @@
import os
import infra.basetest
class TestPv(infra.basetest.BRTest):
config = infra.basetest.BASIC_TOOLCHAIN_CONFIG + \
"""
BR2_PACKAGE_PV=y
BR2_TARGET_ROOTFS_CPIO=y
# BR2_TARGET_ROOTFS_TAR is not set
"""
def test_run(self):
cpio_file = os.path.join(self.builddir, "images", "rootfs.cpio")
self.emulator.boot(arch="armv5",
kernel="builtin",
options=["-initrd", cpio_file])
self.emulator.login()
# We check the program can run.
self.assertRunOk("pv --version")
# We check that "pv" works like the "cat" command. We print a
# message on its standard input and redirect its output to a
# file. We also force the pv terminal width to 80, since
# "infra.emulator" is setting a large width to prevent
# line wrapping.
msg = "Hello Buildroot!"
out_file = "/tmp/out.txt"
cmd = f"echo '{msg}' | pv -w80 > {out_file}"
self.assertRunOk(cmd)
# We check the pv output file contains exactly our message.
cmd = f"cat {out_file}"
out, ret = self.emulator.run(cmd)
self.assertEqual(ret, 0)
self.assertEqual(out[0], msg)
# Finally, we check that "pv" correctly shows a progress
# bar. We print few lines, one per second into "pv" setup in
# line mode. We check the last pv status line contains the
# correct count and a "100%" string that shows completion.
lines = 5
print_ln_cmd = f"( for X in $(seq {lines}) ; do echo $X ; sleep 1 ; done )"
cmd = f"{print_ln_cmd} | pv -s{lines} -l -w80 > /dev/null"
out, ret = self.emulator.run(cmd, timeout=10)
self.assertEqual(ret, 0)
# pv updates status may contain extra spaces, and is updated
# with carriage return characters. We strip lines and filter
# out empty remaining lines, to make sure we get the last
# meaningful status line.
pv_out = [ln.strip() for ln in out]
pv_out = [ln for ln in pv_out if ln]
last_line = pv_out[-1]
self.assertTrue(last_line.startswith(str(lines)))
self.assertTrue(last_line.endswith("100%"))