xread/xwrite: clip MAX_IO_SIZE to SSIZE_MAX
[gitweb.git] / t / test-lib.sh
index 8944e70e5cf6f3c483ff412b0fb68ab4d610c8ca..1aa27bdbbf39bd937a6bb66a7eafeda16bb76246 100644 (file)
@@ -54,8 +54,8 @@ done,*)
        # do not redirect again
        ;;
 *' --tee '*|*' --va'*)
-       mkdir -p test-results
-       BASE=test-results/$(basename "$0" .sh)
+       mkdir -p "$TEST_OUTPUT_DIRECTORY/test-results"
+       BASE="$TEST_OUTPUT_DIRECTORY/test-results/$(basename "$0" .sh)"
        (GIT_TEST_TEE_STARTED=done ${SHELL_PATH} "$0" "$@" 2>&1;
         echo $? > $BASE.exit) | tee $BASE.out
        test "$(cat $BASE.exit)" = 0
@@ -92,6 +92,7 @@ unset VISUAL EMAIL LANGUAGE COLUMNS $("$PERL_PATH" -e '
        print join("\n", @vars);
 ')
 unset XDG_CONFIG_HOME
+unset GITPERLLIB
 GIT_AUTHOR_EMAIL=author@example.com
 GIT_AUTHOR_NAME='A U Thor'
 GIT_COMMITTER_EMAIL=committer@example.com
@@ -204,6 +205,15 @@ do
        --valgrind-only=*)
                valgrind_only=$(expr "z$1" : 'z[^=]*=\(.*\)')
                shift ;;
+       --valgrind-parallel=*)
+               valgrind_parallel=$(expr "z$1" : 'z[^=]*=\(.*\)')
+               shift ;;
+       --valgrind-only-stride=*)
+               valgrind_only_stride=$(expr "z$1" : 'z[^=]*=\(.*\)')
+               shift ;;
+       --valgrind-only-offset=*)
+               valgrind_only_offset=$(expr "z$1" : 'z[^=]*=\(.*\)')
+               shift ;;
        --tee)
                shift ;; # was handled already
        --root=*)
@@ -217,7 +227,7 @@ do
        esac
 done
 
-if test -n "$valgrind_only"
+if test -n "$valgrind_only" || test -n "$valgrind_only_stride"
 then
        test -z "$valgrind" && valgrind=memcheck
        test -z "$verbose" && verbose_only="$valgrind_only"
@@ -367,7 +377,9 @@ maybe_teardown_verbose () {
 last_verbose=t
 maybe_setup_verbose () {
        test -z "$verbose_only" && return
-       if match_pattern_list $test_count $verbose_only
+       if match_pattern_list $test_count $verbose_only ||
+               { test -n "$valgrind_only_stride" &&
+               expr $test_count "%" $valgrind_only_stride - $valgrind_only_offset = 0 >/dev/null; }
        then
                exec 4>&2 3>&1
                # Emit a delimiting blank line when going from
@@ -391,13 +403,17 @@ maybe_teardown_valgrind () {
 
 maybe_setup_valgrind () {
        test -z "$GIT_VALGRIND" && return
-       if test -z "$valgrind_only"
+       if test -z "$valgrind_only" && test -z "$valgrind_only_stride"
        then
                GIT_VALGRIND_ENABLED=t
                return
        fi
        GIT_VALGRIND_ENABLED=
        if match_pattern_list $test_count $valgrind_only
+       then
+               GIT_VALGRIND_ENABLED=t
+       elif test -n "$valgrind_only_stride" &&
+               expr $test_count "%" $valgrind_only_stride - $valgrind_only_offset = 0 >/dev/null
        then
                GIT_VALGRIND_ENABLED=t
        fi
@@ -552,6 +568,9 @@ test_done () {
        esac
 }
 
+
+# Set up a directory that we can put in PATH which redirects all git
+# calls to 'valgrind git ...'.
 if test -n "$valgrind"
 then
        make_symlink () {
@@ -599,33 +618,42 @@ then
                make_symlink "$symlink_target" "$GIT_VALGRIND/bin/$base" || exit
        }
 
-       # override all git executables in TEST_DIRECTORY/..
-       GIT_VALGRIND=$TEST_DIRECTORY/valgrind
-       mkdir -p "$GIT_VALGRIND"/bin
-       for file in $GIT_BUILD_DIR/git* $GIT_BUILD_DIR/test-*
-       do
-               make_valgrind_symlink $file
-       done
-       # special-case the mergetools loadables
-       make_symlink "$GIT_BUILD_DIR"/mergetools "$GIT_VALGRIND/bin/mergetools"
-       OLDIFS=$IFS
-       IFS=:
-       for path in $PATH
-       do
-               ls "$path"/git-* 2> /dev/null |
-               while read file
+       # In the case of --valgrind-parallel, we only need to do the
+       # wrapping once, in the main script.  The worker children all
+       # have $valgrind_only_stride set, so we can skip based on that.
+       if test -z "$valgrind_only_stride"
+       then
+               # override all git executables in TEST_DIRECTORY/..
+               GIT_VALGRIND=$TEST_DIRECTORY/valgrind
+               mkdir -p "$GIT_VALGRIND"/bin
+               for file in $GIT_BUILD_DIR/git* $GIT_BUILD_DIR/test-*
                do
-                       make_valgrind_symlink "$file"
+                       make_valgrind_symlink $file
                done
-       done
-       IFS=$OLDIFS
+               # special-case the mergetools loadables
+               make_symlink "$GIT_BUILD_DIR"/mergetools "$GIT_VALGRIND/bin/mergetools"
+               OLDIFS=$IFS
+               IFS=:
+               for path in $PATH
+               do
+                       ls "$path"/git-* 2> /dev/null |
+                       while read file
+                       do
+                               make_valgrind_symlink "$file"
+                       done
+               done
+               IFS=$OLDIFS
+       fi
        PATH=$GIT_VALGRIND/bin:$PATH
        GIT_EXEC_PATH=$GIT_VALGRIND/bin
        export GIT_VALGRIND
        GIT_VALGRIND_MODE="$valgrind"
        export GIT_VALGRIND_MODE
        GIT_VALGRIND_ENABLED=t
-       test -n "$valgrind_only" && GIT_VALGRIND_ENABLED=
+       if test -n "$valgrind_only" || test -n "$valgrind_only_stride"
+       then
+               GIT_VALGRIND_ENABLED=
+       fi
        export GIT_VALGRIND_ENABLED
 elif test -n "$GIT_TEST_INSTALLED"
 then
@@ -711,6 +739,41 @@ then
 else
        mkdir -p "$TRASH_DIRECTORY"
 fi
+
+# Gross hack to spawn N sub-instances of the tests in parallel, and
+# summarize the results.  Note that if this is enabled, the script
+# terminates at the end of this 'if' block.
+if test -n "$valgrind_parallel"
+then
+       for i in $(test_seq 1 $valgrind_parallel)
+       do
+               root="$TRASH_DIRECTORY/vgparallel-$i"
+               mkdir "$root"
+               TEST_OUTPUT_DIRECTORY="$root" \
+                       ${SHELL_PATH} "$0" \
+                       --root="$root" --statusprefix="[$i] " \
+                       --valgrind="$valgrind" \
+                       --valgrind-only-stride="$valgrind_parallel" \
+                       --valgrind-only-offset="$i" &
+               pids="$pids $!"
+       done
+       trap "kill $pids" INT TERM HUP
+       wait $pids
+       trap - INT TERM HUP
+       for i in $(test_seq 1 $valgrind_parallel)
+       do
+               root="$TRASH_DIRECTORY/vgparallel-$i"
+               eval "$(cat "$root/test-results/$(basename "$0" .sh)"-*.counts |
+                       sed 's/^\([a-z][a-z]*\) \([0-9][0-9]*\)/inner_\1=\2/')"
+               test_count=$(expr $test_count + $inner_total)
+               test_success=$(expr $test_success + $inner_success)
+               test_fixed=$(expr $test_fixed + $inner_fixed)
+               test_broken=$(expr $test_broken + $inner_broken)
+               test_failure=$(expr $test_failure + $inner_failed)
+       done
+       test_done
+fi
+
 # Use -P to resolve symlinks in our working directory so that the cwd
 # in subprocesses like git equals our $PWD (for pathname comparisons).
 cd -P "$TRASH_DIRECTORY" || exit 1
@@ -762,6 +825,7 @@ case $(uname -s) in
        test_set_prereq MINGW
        test_set_prereq NOT_CYGWIN
        test_set_prereq SED_STRIPS_CR
+       test_set_prereq GREP_STRIPS_CR
        ;;
 *CYGWIN*)
        test_set_prereq POSIXPERM
@@ -769,6 +833,7 @@ case $(uname -s) in
        test_set_prereq NOT_MINGW
        test_set_prereq CYGWIN
        test_set_prereq SED_STRIPS_CR
+       test_set_prereq GREP_STRIPS_CR
        ;;
 *)
        test_set_prereq POSIXPERM
@@ -823,7 +888,14 @@ test_i18ngrep () {
 
 test_lazy_prereq PIPE '
        # test whether the filesystem supports FIFOs
-       rm -f testfifo && mkfifo testfifo
+       case $(uname -s) in
+       CYGWIN*)
+               false
+               ;;
+       *)
+               rm -f testfifo && mkfifo testfifo
+               ;;
+       esac
 '
 
 test_lazy_prereq SYMLINKS '