diff options
Diffstat (limited to 't/test-lib-functions.sh')
| -rw-r--r-- | t/test-lib-functions.sh | 156 |
1 files changed, 124 insertions, 32 deletions
diff --git a/t/test-lib-functions.sh b/t/test-lib-functions.sh index 8f8858a..90856d6 100644 --- a/t/test-lib-functions.sh +++ b/t/test-lib-functions.sh @@ -145,6 +145,14 @@ test_pause () { fi } +# Wrap git in gdb. Adding this to a command can make it easier to +# understand what is going on in a failing test. +# +# Example: "debug git checkout master". +debug () { + GIT_TEST_GDB=1 "$@" +} + # Call test_commit with the arguments "<message> [<file> [<contents> [<tag>]]]" # # This will commit a file with the given contents and the given commit @@ -201,7 +209,14 @@ test_chmod () { # Unset a configuration variable, but don't fail if it doesn't exist. test_unconfig () { - git config --unset-all "$@" + config_dir= + if test "$1" = -C + then + shift + config_dir=$1 + shift + fi + git ${config_dir:+-C "$config_dir"} config --unset-all "$@" config_status=$? case "$config_status" in 5) # ok, nothing to unset @@ -213,8 +228,15 @@ test_unconfig () { # Set git config, automatically unsetting it after the test is over. test_config () { - test_when_finished "test_unconfig '$1'" && - git config "$@" + config_dir= + if test "$1" = -C + then + shift + config_dir=$1 + shift + fi + test_when_finished "test_unconfig ${config_dir:+-C '$config_dir'} '$1'" && + git ${config_dir:+-C "$config_dir"} config "$@" } test_config_global () { @@ -348,11 +370,18 @@ test_declared_prereq () { return 1 } +test_verify_prereq () { + test -z "$test_prereq" || + expr >/dev/null "$test_prereq" : '[A-Z0-9_,!]*$' || + error "bug in the test script: '$test_prereq' does not look like a prereq" +} + test_expect_failure () { test_start_ test "$#" = 3 && { test_prereq=$1; shift; } || test_prereq= test "$#" = 2 || error "bug in the test script: not 2 or 3 parameters to test-expect-failure" + test_verify_prereq export test_prereq if ! test_skip "$@" then @@ -372,6 +401,7 @@ test_expect_success () { test "$#" = 3 && { test_prereq=$1; shift; } || test_prereq= test "$#" = 2 || error "bug in the test script: not 2 or 3 parameters to test-expect-success" + test_verify_prereq export test_prereq if ! test_skip "$@" then @@ -400,6 +430,7 @@ test_external () { error >&5 "bug in the test script: not 3 or 4 parameters to test_external" descr="$1" shift + test_verify_prereq export test_prereq if ! test_skip "$descr" "$@" then @@ -538,6 +569,21 @@ test_line_count () { fi } +# Returns success if a comma separated string of keywords ($1) contains a +# given keyword ($2). +# Examples: +# `list_contains "foo,bar" bar` returns 0 +# `list_contains "foo" bar` returns 1 + +list_contains () { + case ",$1," in + *,$2,*) + return 0 + ;; + esac + return 1 +} + # This is not among top-level (test_expect_success | test_expect_failure) # but is a prefix that can be used in the test script, like: # @@ -551,18 +597,34 @@ test_line_count () { # the failure could be due to a segv. We want a controlled failure. test_must_fail () { + case "$1" in + ok=*) + _test_ok=${1#ok=} + shift + ;; + *) + _test_ok= + ;; + esac "$@" exit_code=$? - if test $exit_code = 0; then + if test $exit_code -eq 0 && ! list_contains "$_test_ok" success + then echo >&2 "test_must_fail: command succeeded: $*" return 1 - elif test $exit_code -gt 129 && test $exit_code -le 192; then - echo >&2 "test_must_fail: died by signal: $*" + elif test $exit_code -eq 141 && list_contains "$_test_ok" sigpipe + then + return 0 + elif test $exit_code -gt 129 && test $exit_code -le 192 + then + echo >&2 "test_must_fail: died by signal $(($exit_code - 128)): $*" return 1 - elif test $exit_code = 127; then + elif test $exit_code -eq 127 + then echo >&2 "test_must_fail: command not found: $*" return 1 - elif test $exit_code = 126; then + elif test $exit_code -eq 126 + then echo >&2 "test_must_fail: valgrind error: $*" return 1 fi @@ -581,16 +643,7 @@ test_must_fail () { # because we want to notice if it fails due to segv. test_might_fail () { - "$@" - exit_code=$? - if test $exit_code -gt 129 && test $exit_code -le 192; then - echo >&2 "test_might_fail: died by signal: $*" - return 1 - elif test $exit_code = 127; then - echo >&2 "test_might_fail: command not found: $*" - return 1 - fi - return 0 + test_must_fail ok=success "$@" } # Similar to test_must_fail and test_might_fail, but check that a @@ -665,20 +718,13 @@ test_cmp_rev () { test_cmp expect.rev actual.rev } -# Print a sequence of numbers or letters in increasing order. This is -# similar to GNU seq(1), but the latter might not be available -# everywhere (and does not do letters). It may be used like: +# Print a sequence of integers in increasing order, either with +# two arguments (start and end): # -# for i in $(test_seq 100) -# do -# for j in $(test_seq 10 20) -# do -# for k in $(test_seq a z) -# do -# echo $i-$j-$k -# done -# done -# done +# test_seq 1 5 -- outputs 1 2 3 4 5 one line at a time +# +# or with one argument (end), in which case it starts counting +# from 1. test_seq () { case $# in @@ -686,7 +732,12 @@ test_seq () { 2) ;; *) error "bug in the test script: not 1 or 2 parameters to test_seq" ;; esac - perl -le 'print for $ARGV[0]..$ARGV[1]' -- "$@" + test_seq_counter__=$1 + while test "$test_seq_counter__" -le "$2" + do + echo "$test_seq_counter__" + test_seq_counter__=$(( $test_seq_counter__ + 1 )) + done } # This function can be used to schedule some commands to be run @@ -713,6 +764,11 @@ test_seq () { # what went wrong. test_when_finished () { + # We cannot detect when we are in a subshell in general, but by + # doing so on Bash is better than nothing (the test will + # silently pass on other shells). + test "${BASH_SUBSHELL-0}" = 0 || + error "bug in test script: test_when_finished does nothing in a subshell" test_cleanup="{ $* } && (exit \"\$eval_ret\"); eval_ret=\$?; $test_cleanup" } @@ -883,3 +939,39 @@ mingw_read_file_strip_cr_ () { eval "$1=\$$1\$line" done } + +# Like "env FOO=BAR some-program", but run inside a subshell, which means +# it also works for shell functions (though those functions cannot impact +# the environment outside of the test_env invocation). +test_env () { + ( + while test $# -gt 0 + do + case "$1" in + *=*) + eval "${1%%=*}=\${1#*=}" + eval "export ${1%%=*}" + shift + ;; + *) + "$@" + exit + ;; + esac + done + ) +} + +# Read up to "$1" bytes (or to EOF) from stdin and write them to stdout. +test_copy_bytes () { + perl -e ' + my $len = $ARGV[1]; + while ($len > 0) { + my $s; + my $nread = sysread(STDIN, $s, $len); + die "cannot read: $!" unless defined($nread); + print $s; + $len -= $nread; + } + ' - "$1" +} |