|
|
@@ -0,0 +1,57 @@
|
|
|
+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}")
|
Julien Olivain