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support/testing: test_erlang: new runtime test

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Signed-off-by: Julien Olivain <ju.o@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
(cherry picked from commit 9f3797e342)
Signed-off-by: Raphaël Mélotte <raphael.melotte@mind.be>
This commit is contained in:
Julien Olivain
2026-09-05 16:45:48 +02:00
committed by Raphaël Mélotte
parent 196d433943
commit 9147fc8028
2 changed files with 49 additions and 0 deletions
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@@ -1834,6 +1834,7 @@ F: support/testing/tests/package/test_dosfstools.py
F: support/testing/tests/package/test_dosfstools/
F: support/testing/tests/package/test_dpdk.py
F: support/testing/tests/package/test_ed.py
F: support/testing/tests/package/test_erlang.py
F: support/testing/tests/package/test_ethtool.py
F: support/testing/tests/package/test_ethtool/
F: support/testing/tests/package/test_exfatprogs.py

48
support/testing/tests/package/test_erlang.py Normal file
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@@ -0,0 +1,48 @@
import os
import infra.basetest
class TestErlang(infra.basetest.BRTest):
config = infra.basetest.BASIC_TOOLCHAIN_CONFIG + \
"""
BR2_PACKAGE_ERLANG=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="armv7",
kernel="builtin",
options=["-initrd", cpio_file])
self.emulator.login()
# We check the program can execute.
self.assertRunOk("erl -version")
# We check can print a message from the command line.
msg = "Hello Buildroot!"
erl_expr = f"io:format(\"{msg}~n\"), halt()."
cmd = f"erl -noshell -eval '{erl_expr}'"
out, ret = self.emulator.run(cmd)
self.assertEqual(ret, 0)
self.assertEqual(out[0], msg)
# We check we can exit with a specific code.
exit_code = 123
erl_expr = f"halt({exit_code})."
cmd = f"erl -noshell -eval '{erl_expr}'"
out, ret = self.emulator.run(cmd)
self.assertEqual(ret, exit_code)
self.assertEqual(len(out), 0)
# We check we can do basic arithmetic.
val1 = 1234
val2 = 5678
erl_expr = f"X = {val1} * {val2}, io:format(\"~p~n\", [X]), halt()."
cmd = f"erl -noshell -eval '{erl_expr}'"
out, ret = self.emulator.run(cmd)
self.assertEqual(ret, 0)
expected_result = val1 * val2
self.assertEqual(int(out[0]), expected_result)