Add test for '-F' option of ln(1)

[shivansh]

Summary

The test case should fail as per "Bug 219943".

Test Plan

• Run make install from bin/ln/tests.
• Run kyua test from /usr/tests/bin/ln. 11/12 test cases should succeed, with 1 failing.

[ngie]

bin/ln/tests/ln_test.sh

48

Please don't rely on file(1); use readlink(1)/stat(1) instead:

$ readlink /boot/kernel                                                                                                                                                               
GENERIC-NODEBUG.r319295M
$ stat -f %SHT /boot/kernel                                                                                                                                                           
Symbolic Link

49

This needs to be moved up to line 46 or line 47.

[ngie]

bin/ln/tests/ln_test.sh

232

Also, please put the test in an appropriate spot in the list (sF_flag comes before sf_flag and after f_flag).

[shivansh]

Address changes pointed by @ngie -

• Position the test case appropriately.
• Replace calls to file(1) with stat(1) and readlink(1).

[ngie]

I'll commit the file->stat/readlink changes separately. Please hold.

[ngie]

Ok -- I just committed the file -> stat/readlink change. Please rebase your change (thanks :)!!).

[ngie]

In D11159#230864, @ngie wrote:

Ok -- I just committed the file -> stat/readlink change. Please rebase your change (thanks :)!!).

Actually... I'll just do it. It's easy enough for me.