t3300-*.sh: Fix a TAP parse error

At present, running the t3300-*.sh test on cygwin looks like:

    $ cd t
    $ ./t3300-funny-names.sh
    ok 1 - setup
    # passed all 1 test(s)
    1..1 # SKIP Your filesystem does not allow tabs in filenames
    $

Unfortunately, this is not valid TAP output, which prove notes
as follows:

    $ prove --exec sh t3300-funny-names.sh
    t3300-funny-names.sh .. All 1 subtests passed

    Test Summary Report
    -------------------
    t3300-funny-names.sh (Wstat: 0 Tests: 1 Failed: 0)
      Parse errors: No plan found in TAP output
    Files=1, Tests=1,  2 wallclock secs ( 0.05 usr  0.00 sys +  \
        0.90 cusr  0.49 csys =  1.43 CPU)
    Result: FAIL
    $

This is due to the 'trailing_plan' having a 'skip_directive'
attached to it. This is not allowed by the TAP grammar, which
only allows a 'leading_plan' to be followed by an optional
'skip_directive'. (see perldoc TAP::Parser::Grammar).

A trailing_plan is one that appears in the TAP output after one or
more test status lines (that start 'not '? 'ok ' ...), whereas a
leading_plan must appear before all test status lines (if any).

In practice, this means that the test script cannot contain a use
of the 'skip all' facility:

    skip_all='Some reason to skip *all* tests in this file'
    test_done

after having already executed one or more tests with (for example)
'test_expect_success'. Unfortunately, this is exactly what this
test script is doing. The first 'setup' test is actually used to
determine if the test prerequisite is satisfied by the filesystem
(ie does it allow tabs in filenames?).

In order to fix the parse errors, place the code to determine the
test prerequisite at the top level of the script, prior to the
first test, rather than as a parameter to test_expect_success.
This allows us to correctly use 'skip_all', thus:

    $ ./t3300-funny-names.sh
    # passed all 0 test(s)
    1..0 # SKIP Your filesystem does not allow tabs in filenames
    $

    $ prove --exec sh t3300-funny-names.sh
    t3300-funny-names.sh .. skipped: Your filesystem does not \
        allow tabs in filenames
    Files=1, Tests=0,  2 wallclock secs ( 0.02 usr  0.03 sys +  \
        0.84 cusr  0.41 csys =  1.29 CPU)
    Result: NOTESTS
    $

Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Ramsay Jones 2012-09-01 19:08:42 +01:00 committed by Junio C Hamano
parent 871e293c9a
commit 46d98476cf

View file

@ -11,6 +11,16 @@ tree, index, and tree objects.
. ./test-lib.sh
HT=' '
echo 2>/dev/null > "Name with an${HT}HT"
if ! test -f "Name with an${HT}HT"
then
# since FAT/NTFS does not allow tabs in filenames, skip this test
skip_all='Your filesystem does not allow tabs in filenames'
test_done
fi
p0='no-funny'
p1='tabs ," (dq) and spaces'
p2='just space'
@ -23,21 +33,9 @@ test_expect_success 'setup' '
EOF
{ cat "$p0" >"$p1" || :; } &&
{ echo "Foo Bar Baz" >"$p2" || :; } &&
if test -f "$p1" && cmp "$p0" "$p1"
then
test_set_prereq TABS_IN_FILENAMES
fi
{ echo "Foo Bar Baz" >"$p2" || :; }
'
if ! test_have_prereq TABS_IN_FILENAMES
then
# since FAT/NTFS does not allow tabs in filenames, skip this test
skip_all='Your filesystem does not allow tabs in filenames'
test_done
fi
test_expect_success 'setup: populate index and tree' '
git update-index --add "$p0" "$p2" &&
t0=$(git write-tree)