1import os
2
3import infra.basetest
4
5
6class TestLsof(infra.basetest.BRTest):
7    config = infra.basetest.BASIC_TOOLCHAIN_CONFIG + \
8        """
9        BR2_PACKAGE_BUSYBOX_SHOW_OTHERS=y
10        BR2_PACKAGE_LSOF=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        test_file = "/tmp/this-is-a-test-file"
23
24        # Check the program can execute
25        self.assertRunOk("lsof -v")
26
27        # Check a normal program invocation
28        self.assertRunOk("lsof")
29
30        # Check lsof fails if requested file is not opened
31        _, exit_code = self.emulator.run("lsof {}".format(test_file))
32        self.assertNotEqual(exit_code, 0)
33
34        # Open the test file from the shell on descriptor 10
35        self.assertRunOk("exec 10> {}".format(test_file))
36
37        # Check that lsof now show the file
38        output, exit_code = self.emulator.run("lsof {}".format(test_file))
39        self.assertEqual(exit_code, 0)
40        # output[0] is the lsof header line
41        self.assertIn(test_file, output[1])
42