git/t/t1002-read-tree-m-u-2way.sh
Pavel Roskin 4d9d62fa7c [PATCH] Trapping exit in tests, using return for errors
I have noticed that "make test" fails without any explanations when the
"merge" utility is missing.  I don't think tests should be silent in
case of failure.

It turned out that the particular test was using "exit" to interrupt the
test in case of an error.  This caused the whole test script to exit.
No further tests would be run even if "--immediate" wasn't specified.
No error message was printed.

This patch does following:

All instances of "exit", "exit 1" and "(exit 1)" in tests have been
replaced with "return 1".  In fact, "(exit 1)" had no effect.

File descriptor 5 is duplicated from file descriptor 1.  This is needed
to print important error messages from tests.

New function test_run_() has been introduced.  Any "return" in the test
would merely cause that function to return without skipping calls to
test_failure_() and test_ok_().  The new function also traps "exit" and
treats it like a fatal error (in case somebody reintroduces "exit" in
the tests).

test_expect_failure() and test_expect_success() check both the result of
eval and the return value of test_run_().  If the later is not 0, it's
always a failure because it indicates the the test didn't complete.

Signed-off-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-08-11 18:26:16 -07:00

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#!/bin/sh
#
# Copyright (c) 2005 Junio C Hamano
#
test_description='Two way merge with read-tree -m -u $H $M
This is identical to t1001, but uses -u to update the work tree as well.
'
. ./test-lib.sh
_x40='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]'
_x40="$_x40$_x40$_x40$_x40$_x40$_x40$_x40$_x40"
compare_change () {
sed >current \
-e '/^--- /d; /^+++ /d; /^@@ /d;' \
-e 's/^\(.[0-7][0-7][0-7][0-7][0-7][0-7]\) '"$_x40"' /\1 X /' "$1"
diff -u expected current
}
check_cache_at () {
clean_if_empty=`git-diff-files "$1"`
case "$clean_if_empty" in
'') echo "$1: clean" ;;
?*) echo "$1: dirty" ;;
esac
case "$2,$clean_if_empty" in
clean,) : ;;
clean,?*) false ;;
dirty,) false ;;
dirty,?*) : ;;
esac
}
test_expect_success \
setup \
'echo frotz >frotz &&
echo nitfol >nitfol &&
echo bozbar >bozbar &&
echo rezrov >rezrov &&
echo yomin >yomin &&
git-update-cache --add nitfol bozbar rezrov &&
treeH=`git-write-tree` &&
echo treeH $treeH &&
git-ls-tree $treeH &&
echo gnusto >bozbar &&
git-update-cache --add frotz bozbar --force-remove rezrov &&
git-ls-files --stage >M.out &&
treeM=`git-write-tree` &&
echo treeM $treeM &&
git-ls-tree $treeM &&
sum bozbar frotz nitfol >M.sum &&
git-diff-tree $treeH $treeM'
test_expect_success \
'1, 2, 3 - no carry forward' \
'rm -f .git/index &&
git-read-tree -m -u $treeH $treeM &&
git-ls-files --stage >1-3.out &&
cmp M.out 1-3.out &&
sum bozbar frotz nitfol >actual3.sum &&
cmp M.sum actual3.sum &&
check_cache_at bozbar clean &&
check_cache_at frotz clean &&
check_cache_at nitfol clean'
echo '+100644 X 0 yomin' >expected
test_expect_success \
'4 - carry forward local addition.' \
'rm -f .git/index &&
git-update-cache --add yomin &&
git-read-tree -m -u $treeH $treeM &&
git-ls-files --stage >4.out || return 1
diff --unified=0 M.out 4.out >4diff.out
compare_change 4diff.out expected &&
check_cache_at yomin clean &&
sum bozbar frotz nitfol >actual4.sum &&
cmp M.sum actual4.sum &&
echo yomin >yomin1 &&
diff yomin yomin1 &&
rm -f yomin1'
test_expect_success \
'5 - carry forward local addition.' \
'rm -f .git/index &&
echo yomin >yomin &&
git-update-cache --add yomin &&
echo yomin yomin >yomin &&
git-read-tree -m -u $treeH $treeM &&
git-ls-files --stage >5.out || return 1
diff --unified=0 M.out 5.out >5diff.out
compare_change 5diff.out expected &&
check_cache_at yomin dirty &&
sum bozbar frotz nitfol >actual5.sum &&
cmp M.sum actual5.sum &&
: dirty index should have prevented -u from checking it out. &&
echo yomin yomin >yomin1 &&
diff yomin yomin1 &&
rm -f yomin1'
test_expect_success \
'6 - local addition already has the same.' \
'rm -f .git/index &&
git-update-cache --add frotz &&
git-read-tree -m -u $treeH $treeM &&
git-ls-files --stage >6.out &&
diff --unified=0 M.out 6.out &&
check_cache_at frotz clean &&
sum bozbar frotz nitfol >actual3.sum &&
cmp M.sum actual3.sum &&
echo frotz >frotz1 &&
diff frotz frotz1 &&
rm -f frotz1'
test_expect_success \
'7 - local addition already has the same.' \
'rm -f .git/index &&
echo frotz >frotz &&
git-update-cache --add frotz &&
echo frotz frotz >frotz &&
git-read-tree -m -u $treeH $treeM &&
git-ls-files --stage >7.out &&
diff --unified=0 M.out 7.out &&
check_cache_at frotz dirty &&
sum bozbar frotz nitfol >actual7.sum &&
if cmp M.sum actual7.sum; then false; else :; fi &&
: dirty index should have prevented -u from checking it out. &&
echo frotz frotz >frotz1 &&
diff frotz frotz1 &&
rm -f frotz1'
test_expect_success \
'8 - conflicting addition.' \
'rm -f .git/index &&
echo frotz frotz >frotz &&
git-update-cache --add frotz &&
if git-read-tree -m -u $treeH $treeM; then false; else :; fi'
test_expect_success \
'9 - conflicting addition.' \
'rm -f .git/index &&
echo frotz frotz >frotz &&
git-update-cache --add frotz &&
echo frotz >frotz &&
if git-read-tree -m -u $treeH $treeM; then false; else :; fi'
test_expect_success \
'10 - path removed.' \
'rm -f .git/index &&
echo rezrov >rezrov &&
git-update-cache --add rezrov &&
git-read-tree -m -u $treeH $treeM &&
git-ls-files --stage >10.out &&
cmp M.out 10.out &&
sum bozbar frotz nitfol >actual10.sum &&
cmp M.sum actual10.sum'
test_expect_success \
'11 - dirty path removed.' \
'rm -f .git/index &&
echo rezrov >rezrov &&
git-update-cache --add rezrov &&
echo rezrov rezrov >rezrov &&
if git-read-tree -m -u $treeH $treeM; then false; else :; fi'
test_expect_success \
'12 - unmatching local changes being removed.' \
'rm -f .git/index &&
echo rezrov rezrov >rezrov &&
git-update-cache --add rezrov &&
if git-read-tree -m -u $treeH $treeM; then false; else :; fi'
test_expect_success \
'13 - unmatching local changes being removed.' \
'rm -f .git/index &&
echo rezrov rezrov >rezrov &&
git-update-cache --add rezrov &&
echo rezrov >rezrov &&
if git-read-tree -m -u $treeH $treeM; then false; else :; fi'
cat >expected <<EOF
-100644 X 0 nitfol
+100644 X 0 nitfol
EOF
test_expect_success \
'14 - unchanged in two heads.' \
'rm -f .git/index &&
echo nitfol nitfol >nitfol &&
git-update-cache --add nitfol &&
git-read-tree -m -u $treeH $treeM &&
git-ls-files --stage >14.out || return 1
diff --unified=0 M.out 14.out >14diff.out
compare_change 14diff.out expected &&
sum bozbar frotz >actual14.sum &&
grep -v nitfol M.sum > expected14.sum &&
cmp expected14.sum actual14.sum &&
sum bozbar frotz nitfol >actual14a.sum &&
if cmp M.sum actual14a.sum; then false; else :; fi &&
check_cache_at nitfol clean &&
echo nitfol nitfol >nitfol1 &&
diff nitfol nitfol1 &&
rm -f nitfol1'
test_expect_success \
'15 - unchanged in two heads.' \
'rm -f .git/index &&
echo nitfol nitfol >nitfol &&
git-update-cache --add nitfol &&
echo nitfol nitfol nitfol >nitfol &&
git-read-tree -m -u $treeH $treeM &&
git-ls-files --stage >15.out || return 1
diff --unified=0 M.out 15.out >15diff.out
compare_change 15diff.out expected &&
check_cache_at nitfol dirty &&
sum bozbar frotz >actual15.sum &&
grep -v nitfol M.sum > expected15.sum &&
cmp expected15.sum actual15.sum &&
sum bozbar frotz nitfol >actual15a.sum &&
if cmp M.sum actual15a.sum; then false; else :; fi &&
echo nitfol nitfol nitfol >nitfol1 &&
diff nitfol nitfol1 &&
rm -f nitfol1'
test_expect_success \
'16 - conflicting local change.' \
'rm -f .git/index &&
echo bozbar bozbar >bozbar &&
git-update-cache --add bozbar &&
if git-read-tree -m -u $treeH $treeM; then false; else :; fi'
test_expect_success \
'17 - conflicting local change.' \
'rm -f .git/index &&
echo bozbar bozbar >bozbar &&
git-update-cache --add bozbar &&
echo bozbar bozbar bozbar >bozbar &&
if git-read-tree -m -u $treeH $treeM; then false; else :; fi'
test_expect_success \
'18 - local change already having a good result.' \
'rm -f .git/index &&
echo gnusto >bozbar &&
git-update-cache --add bozbar &&
git-read-tree -m -u $treeH $treeM &&
git-ls-files --stage >18.out &&
diff --unified=0 M.out 18.out &&
check_cache_at bozbar clean &&
sum bozbar frotz nitfol >actual18.sum &&
cmp M.sum actual18.sum'
test_expect_success \
'19 - local change already having a good result, further modified.' \
'rm -f .git/index &&
echo gnusto >bozbar &&
git-update-cache --add bozbar &&
echo gnusto gnusto >bozbar &&
git-read-tree -m -u $treeH $treeM &&
git-ls-files --stage >19.out &&
diff --unified=0 M.out 19.out &&
check_cache_at bozbar dirty &&
sum frotz nitfol >actual19.sum &&
grep -v bozbar M.sum > expected19.sum &&
cmp expected19.sum actual19.sum &&
sum bozbar frotz nitfol >actual19a.sum &&
if cmp M.sum actual19a.sum; then false; else :; fi &&
echo gnusto gnusto >bozbar1 &&
diff bozbar bozbar1 &&
rm -f bozbar1'
test_expect_success \
'20 - no local change, use new tree.' \
'rm -f .git/index &&
echo bozbar >bozbar &&
git-update-cache --add bozbar &&
git-read-tree -m -u $treeH $treeM &&
git-ls-files --stage >20.out &&
diff --unified=0 M.out 20.out &&
check_cache_at bozbar clean &&
sum bozbar frotz nitfol >actual20.sum &&
cmp M.sum actual20.sum'
test_expect_success \
'21 - no local change, dirty cache.' \
'rm -f .git/index &&
echo bozbar >bozbar &&
git-update-cache --add bozbar &&
echo gnusto gnusto >bozbar &&
if git-read-tree -m -u $treeH $treeM; then false; else :; fi'
# Also make sure we did not break DF vs DF/DF case.
test_expect_success \
'DF vs DF/DF case setup.' \
'rm -f .git/index &&
echo DF >DF &&
git-update-cache --add DF &&
treeDF=`git-write-tree` &&
echo treeDF $treeDF &&
git-ls-tree $treeDF &&
rm -f DF &&
mkdir DF &&
echo DF/DF >DF/DF &&
git-update-cache --add --remove DF DF/DF &&
treeDFDF=`git-write-tree` &&
echo treeDFDF $treeDFDF &&
git-ls-tree $treeDFDF &&
git-ls-files --stage >DFDF.out'
test_expect_success \
'DF vs DF/DF case test.' \
'rm -f .git/index &&
rm -fr DF &&
echo DF >DF &&
git-update-cache --add DF &&
git-read-tree -m -u $treeDF $treeDFDF &&
git-ls-files --stage >DFDFcheck.out &&
diff --unified=0 DFDF.out DFDFcheck.out &&
check_cache_at DF/DF clean'
test_done