bug#20716: TAP Protocol skip is not recognized.

[Arthur Schwarz]

http://testanything.org/

DIRECTIVES

Directives are special notes that follow a # on the test line. Only two are
currently defined: TODO and SKIP. Note that these two keywords are not
case-sensitive.

The tap-driver.sh does accept 'ok # skip' but requires 'ok # SKIP'. The TAP
standard says that skip is not case sensitive (it is case insensitive?).

It is reported as XPASS (because TAP_LOG_DRIVER_FLAGS = --expect-failure
yes) but a test-plan of 1..0 is reported as SKIP. This seems inconsistent. 

If I have
    1..1
    ok # SKIP

Is reported as

XPASS: test2.tap 1
=================================
Testsuite summary for test 0.5
=================================
# TOTAL: 1
# PASS:  0
# SKIP:  0
# XFAIL: 0
# FAIL:  0
# XPASS: 1
# ERROR: 0
=================================
See src/test-suite.log
================================

test2.trs
:global-test-result: FAIL
:recheck: yes
:copy-in-global-log: yes
:test-result: XPASS

while
    1..0

Is reported as

SKIP: test2.tap
=================================
Testsuite summary for test 0.5
=================================
# TOTAL: 1
# PASS:  0
# SKIP:  1
# XFAIL: 0
# FAIL:  0
# XPASS: 0
# ERROR: 0
=================================

Test2.tap
:global-test-result: SKIP
:recheck: no
:copy-in-global-log: yes
:test-result: SKIP

And what is also interesting is that the output is also different. No
test-suite.log file (seems ok except I would expect some indication) and,
since this is the TAP protocol, I would expect that Diagnostics would be
captured in a test-suite.log as is indicated in the ':copy-in-global-log:'
yes metadata tag.