1import os
2
3import infra.basetest
4
5
6class TestDos2Unix(infra.basetest.BRTest):
7    config = infra.basetest.BASIC_TOOLCHAIN_CONFIG + \
8        """
9        BR2_PACKAGE_BUSYBOX_SHOW_OTHERS=y
10        BR2_PACKAGE_DOS2UNIX=y
11        BR2_TARGET_ROOTFS_CPIO=y
12        # BR2_TARGET_ROOTFS_TAR is not set
13        """
14
15    def test_run(self):
16        cpio_file = os.path.join(self.builddir, "images", "rootfs.cpio")
17        self.emulator.boot(arch="armv5",
18                           kernel="builtin",
19                           options=["-initrd", cpio_file])
20        self.emulator.login()
21
22        # Check the program can run. This test also checks that we're
23        # using the real "dos2unix" rather than the applet provided in
24        # BusyBox, since the "--version" option is recognized by the
25        # real dos2unix and return an error in BusyBox.
26        self.assertRunOk("dos2unix --version")
27
28        # Create a text file with UNIX new-lines
29        self.assertRunOk("echo -e 'Hello\\nBuildroot' > original.txt")
30
31        # Convert the original UNIX file to DOS
32        self.assertRunOk("unix2dos -n original.txt dos.txt")
33
34        # DOS file is expected to be different than the UNIX file
35        _, exit_code = self.emulator.run("cmp original.txt dos.txt")
36        self.assertNotEqual(exit_code, 0)
37
38        # The "cat -A" command should print '^M$' for CR-LF
39        self.assertRunOk("cat -A dos.txt | grep -Fq '^M$'")
40
41        # Convert back DOS file to UNIX
42        self.assertRunOk("dos2unix -n dos.txt unix.txt")
43
44        # "unix.txt" should be identical to "original.txt"
45        self.assertRunOk("cmp original.txt unix.txt")
46