uniq: Replace NetBSD's unit tests with our own.

[des]

Summary

These new tests cover more functionality and are easier to extend.

Sponsored by: Klara, Inc.

[emaste]

ObsoleteFiles.inc

54

maybe "switch from NetBSD uniq tests to our own" or some other hint as to why new tests are removing a bunch of files?

usr.bin/uniq/tests/uniq_test.sh

8

This has no special meaning to atf, right? Because of the atf prefix I thought it might.

9–12

it took me a moment to reason about the different cases here, maybe a comment that this is covering the various combinations of [input_file [output_file]]?

Should we test uniq "$@" input actual as well?

31

perhaps test input that doesn't have the same count for each line of output?

[des]

incorporate suggestions

[des]

usr.bin/uniq/tests/uniq_test.sh

8

No, no special meaning, it just seemed like the appropriate name for a function that literally runs atf_check uniq.

[des]

improve test case for -cd

[des]

test -cu