test-lib: turn off "-x" tracing during chain-lint check

Now that GIT_TEST_CHAIN_LINT is on by default, running:

    ./t0000-basic.sh -x --verbose-only=1

starts with:

    expecting success:
            find .git/objects -type f -print >should-be-empty &&
            test_line_count = 0 should-be-empty

    + exit 117
    error: last command exited with $?=117
    + find .git/objects -type f -print
    + test_line_count = 0 should-be-empty
    + test 3 != 3
    + wc -l
    + test 0 = 0
    ok 1 - .git/objects should be empty after git init in an empty repo

This is confusing, as the "exit 117" line and the error line
(which is printed in red, no less!) are not part of the test
at all, but are rather in the separate chain-lint test_eval.
Let's unset the "trace" variable when eval-ing the chain
lint check, which avoids this.

Note that we cannot just do a one-shot variable like:

    trace= test_eval ...

as the behavior of one-shot variables for function calls
is not portable.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jeff King 2015-08-06 01:31:47 -04:00 committed by Junio C Hamano
parent 92b269f5c5
commit 2a01ef8ca3

View File

@ -532,12 +532,17 @@ test_run_ () {
expecting_failure=$2
if test "${GIT_TEST_CHAIN_LINT:-1}" != 0; then
# turn off tracing for this test-eval, as it simply creates
# confusing noise in the "-x" output
trace_tmp=$trace
trace=
# 117 is magic because it is unlikely to match the exit
# code of other programs
test_eval_ "(exit 117) && $1"
if test "$?" != 117; then
error "bug in the test script: broken &&-chain: $1"
fi
trace=$trace_tmp
fi
setup_malloc_check