58 lines
2.3 KiB
Python
58 lines
2.3 KiB
Python
import os
|
|
|
|
import infra.basetest
|
|
|
|
|
|
class TestLess(infra.basetest.BRTest):
|
|
config = infra.basetest.BASIC_TOOLCHAIN_CONFIG + \
|
|
"""
|
|
BR2_PACKAGE_BUSYBOX_SHOW_OTHERS=y
|
|
BR2_PACKAGE_LESS=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()
|
|
|
|
# Check the program can execute. This command also checks that
|
|
# the "less" program is from the actual "less" package, rather
|
|
# than the Busybox implementation (the Busybox "less" applet
|
|
# does not recognize the "--version" option and would fail).
|
|
self.assertRunOk("less --version")
|
|
|
|
# We create a test file.
|
|
ref_txt = "Hello Buildroot!"
|
|
input_fname = "input.txt"
|
|
self.assertRunOk(f"echo \'{ref_txt}\' > {input_fname}")
|
|
|
|
# "less" is mainly an interactive user program and uses
|
|
# terminal control characters. This test checks a basic "less"
|
|
# invocation in which there is no user interaction. The
|
|
# program is expected to give back the input data.
|
|
output, exit_code = self.emulator.run(f"less -F {input_fname}")
|
|
self.assertEqual(exit_code, 0)
|
|
# "less" might insert a carriage-return ^M control character,
|
|
# which will be converted to a new-line (by the
|
|
# str.splitlines() in Emulator.run()). We check that our
|
|
# reference text line is in the output (rather than only
|
|
# testing output[0]).
|
|
self.assertIn(ref_txt, output)
|
|
|
|
# We redo about the same test, with "less" reading stdin this
|
|
# time. We also use the "less -o log" option to log the output
|
|
# into a file. We expect to see our reference text on stdout.
|
|
output_fname = "output.txt"
|
|
cmd = f"cat {input_fname} | less -F -o {output_fname}"
|
|
output, exit_code = self.emulator.run(cmd)
|
|
self.assertEqual(exit_code, 0)
|
|
self.assertIn(ref_txt, output)
|
|
|
|
# The output file content which logged the output is also
|
|
# expected to be the same as the input.
|
|
self.assertRunOk(f"cmp {input_fname} {output_fname}")
|