test_must_fail should only be used for testing git commands. To test the
failure of other commands use `!`.

Reported-by: Stefan Beller <sbel...@google.com>
Signed-off-by: Pranit Bauva <pranit.ba...@gmail.com>
---
 t/t3510-cherry-pick-sequence.sh  |  6 +++---
 t/t5504-fetch-receive-strict.sh  |  2 +-
 t/t5516-fetch-push.sh            |  2 +-
 t/t5601-clone.sh                 |  2 +-
 t/t6030-bisect-porcelain.sh      |  2 +-
 t/t7610-mergetool.sh             |  2 +-
 t/t9001-send-email.sh            |  2 +-
 t/t9117-git-svn-init-clone.sh    | 12 ++++++------
 t/t9813-git-p4-preserve-users.sh |  8 ++++----
 t/t9814-git-p4-rename.sh         |  6 +++---
 10 files changed, 22 insertions(+), 22 deletions(-)

diff --git a/t/t3510-cherry-pick-sequence.sh b/t/t3510-cherry-pick-sequence.sh
index 372307c21..0acf4b146 100755
--- a/t/t3510-cherry-pick-sequence.sh
+++ b/t/t3510-cherry-pick-sequence.sh
@@ -385,7 +385,7 @@ test_expect_success '--continue respects opts' '
        git cat-file commit HEAD~1 >picked_msg &&
        git cat-file commit HEAD~2 >unrelatedpick_msg &&
        git cat-file commit HEAD~3 >initial_msg &&
-       test_must_fail grep "cherry picked from" initial_msg &&
+       ! grep "cherry picked from" initial_msg &&
        grep "cherry picked from" unrelatedpick_msg &&
        grep "cherry picked from" picked_msg &&
        grep "cherry picked from" anotherpick_msg
@@ -426,9 +426,9 @@ test_expect_failure '--signoff is automatically propagated 
to resolved conflict'
        git cat-file commit HEAD~1 >picked_msg &&
        git cat-file commit HEAD~2 >unrelatedpick_msg &&
        git cat-file commit HEAD~3 >initial_msg &&
-       test_must_fail grep "Signed-off-by:" initial_msg &&
+       ! grep "Signed-off-by:" initial_msg &&
        grep "Signed-off-by:" unrelatedpick_msg &&
-       test_must_fail grep "Signed-off-by:" picked_msg &&
+       ! grep "Signed-off-by:" picked_msg &&
        grep "Signed-off-by:" anotherpick_msg
 '
 
diff --git a/t/t5504-fetch-receive-strict.sh b/t/t5504-fetch-receive-strict.sh
index 9b19cff72..49d3621a9 100755
--- a/t/t5504-fetch-receive-strict.sh
+++ b/t/t5504-fetch-receive-strict.sh
@@ -152,7 +152,7 @@ test_expect_success 'push with 
receive.fsck.missingEmail=warn' '
        git --git-dir=dst/.git config --add \
                receive.fsck.badDate warn &&
        git push --porcelain dst bogus >act 2>&1 &&
-       test_must_fail grep "missingEmail" act
+       ! grep "missingEmail" act
 '
 
 test_expect_success \
diff --git a/t/t5516-fetch-push.sh b/t/t5516-fetch-push.sh
index 26b2cafc4..0fc5a7c59 100755
--- a/t/t5516-fetch-push.sh
+++ b/t/t5516-fetch-push.sh
@@ -1004,7 +1004,7 @@ test_expect_success 'push --porcelain' '
 test_expect_success 'push --porcelain bad url' '
        mk_empty testrepo &&
        test_must_fail git push >.git/bar --porcelain asdfasdfasd 
refs/heads/master:refs/remotes/origin/master &&
-       test_must_fail grep -q Done .git/bar
+       ! grep -q Done .git/bar
 '
 
 test_expect_success 'push --porcelain rejected' '
diff --git a/t/t5601-clone.sh b/t/t5601-clone.sh
index a43339420..4241ea5b3 100755
--- a/t/t5601-clone.sh
+++ b/t/t5601-clone.sh
@@ -151,7 +151,7 @@ test_expect_success 'clone --mirror does not repeat tags' '
        git clone --mirror src mirror2 &&
        (cd mirror2 &&
         git show-ref 2> clone.err > clone.out) &&
-       test_must_fail grep Duplicate mirror2/clone.err &&
+       ! grep Duplicate mirror2/clone.err &&
        grep some-tag mirror2/clone.out
 
 '
diff --git a/t/t6030-bisect-porcelain.sh b/t/t6030-bisect-porcelain.sh
index 5e5370feb..8c2c6eaef 100755
--- a/t/t6030-bisect-porcelain.sh
+++ b/t/t6030-bisect-porcelain.sh
@@ -407,7 +407,7 @@ test_expect_success 'good merge base when good and bad are 
siblings' '
        test_i18ngrep "merge base must be tested" my_bisect_log.txt &&
        grep $HASH4 my_bisect_log.txt &&
        git bisect good > my_bisect_log.txt &&
-       test_must_fail grep "merge base must be tested" my_bisect_log.txt &&
+       ! grep "merge base must be tested" my_bisect_log.txt &&
        grep $HASH6 my_bisect_log.txt &&
        git bisect reset
 '
diff --git a/t/t7610-mergetool.sh b/t/t7610-mergetool.sh
index 63d36fb28..0fe7e58cf 100755
--- a/t/t7610-mergetool.sh
+++ b/t/t7610-mergetool.sh
@@ -602,7 +602,7 @@ test_expect_success MKTEMP 'temporary filenames are used 
with mergetool.writeToT
        test_config mergetool.myecho.trustExitCode true &&
        test_must_fail git merge master &&
        git mergetool --no-prompt --tool myecho -- both >actual &&
-       test_must_fail grep ^\./both_LOCAL_ actual >/dev/null &&
+       ! grep ^\./both_LOCAL_ actual >/dev/null &&
        grep /both_LOCAL_ actual >/dev/null &&
        git reset --hard master >/dev/null 2>&1
 '
diff --git a/t/t9001-send-email.sh b/t/t9001-send-email.sh
index 3dc4a3454..0f398dd16 100755
--- a/t/t9001-send-email.sh
+++ b/t/t9001-send-email.sh
@@ -50,7 +50,7 @@ test_no_confirm () {
                --smtp-server="$(pwd)/fake.sendmail" \
                $@ \
                $patches >stdout &&
-               test_must_fail grep "Send this email" stdout &&
+               ! grep "Send this email" stdout &&
                >no_confirm_okay
 }
 
diff --git a/t/t9117-git-svn-init-clone.sh b/t/t9117-git-svn-init-clone.sh
index 69a675052..044f65e91 100755
--- a/t/t9117-git-svn-init-clone.sh
+++ b/t/t9117-git-svn-init-clone.sh
@@ -55,7 +55,7 @@ test_expect_success 'clone to target directory with 
--stdlayout' '
 test_expect_success 'init without -s/-T/-b/-t does not warn' '
        test ! -d trunk &&
        git svn init "$svnrepo"/project/trunk trunk 2>warning &&
-       test_must_fail grep -q prefix warning &&
+       ! grep -q prefix warning &&
        rm -rf trunk &&
        rm -f warning
        '
@@ -63,7 +63,7 @@ test_expect_success 'init without -s/-T/-b/-t does not warn' '
 test_expect_success 'clone without -s/-T/-b/-t does not warn' '
        test ! -d trunk &&
        git svn clone "$svnrepo"/project/trunk 2>warning &&
-       test_must_fail grep -q prefix warning &&
+       ! grep -q prefix warning &&
        rm -rf trunk &&
        rm -f warning
        '
@@ -86,7 +86,7 @@ EOF
 test_expect_success 'init with -s/-T/-b/-t assumes --prefix=origin/' '
        test ! -d project &&
        git svn init -s "$svnrepo"/project project 2>warning &&
-       test_must_fail grep -q prefix warning &&
+       ! grep -q prefix warning &&
        test_svn_configured_prefix "origin/" &&
        rm -rf project &&
        rm -f warning
@@ -95,7 +95,7 @@ test_expect_success 'init with -s/-T/-b/-t assumes 
--prefix=origin/' '
 test_expect_success 'clone with -s/-T/-b/-t assumes --prefix=origin/' '
        test ! -d project &&
        git svn clone -s "$svnrepo"/project 2>warning &&
-       test_must_fail grep -q prefix warning &&
+       ! grep -q prefix warning &&
        test_svn_configured_prefix "origin/" &&
        rm -rf project &&
        rm -f warning
@@ -104,7 +104,7 @@ test_expect_success 'clone with -s/-T/-b/-t assumes 
--prefix=origin/' '
 test_expect_success 'init with -s/-T/-b/-t and --prefix "" still works' '
        test ! -d project &&
        git svn init -s "$svnrepo"/project project --prefix "" 2>warning &&
-       test_must_fail grep -q prefix warning &&
+       ! grep -q prefix warning &&
        test_svn_configured_prefix "" &&
        rm -rf project &&
        rm -f warning
@@ -113,7 +113,7 @@ test_expect_success 'init with -s/-T/-b/-t and --prefix "" 
still works' '
 test_expect_success 'clone with -s/-T/-b/-t and --prefix "" still works' '
        test ! -d project &&
        git svn clone -s "$svnrepo"/project --prefix "" 2>warning &&
-       test_must_fail grep -q prefix warning &&
+       ! grep -q prefix warning &&
        test_svn_configured_prefix "" &&
        rm -rf project &&
        rm -f warning
diff --git a/t/t9813-git-p4-preserve-users.sh b/t/t9813-git-p4-preserve-users.sh
index 0fe231280..798bf2b67 100755
--- a/t/t9813-git-p4-preserve-users.sh
+++ b/t/t9813-git-p4-preserve-users.sh
@@ -126,13 +126,13 @@ test_expect_success 'not preserving user with mixed 
authorship' '
                grep "git author char...@example.com does not match" &&
 
                make_change_by_user usernamefile3 alice al...@example.com &&
-               git p4 commit |\
-               test_must_fail grep "git author.*does not match" &&
+               git p4 commit >actual 2>&1 &&
+               ! grep "git author.*does not match" actual &&
 
                git config git-p4.skipUserNameCheck true &&
                make_change_by_user usernamefile3 Charlie char...@example.com &&
-               git p4 commit |\
-               test_must_fail grep "git author.*does not match" &&
+               git p4 commit >actual 2>&1 &&
+               ! grep "git author.*does not match" actual &&
 
                p4_check_commit_author usernamefile3 alice
        )
diff --git a/t/t9814-git-p4-rename.sh b/t/t9814-git-p4-rename.sh
index c89992cf9..e7e0268e9 100755
--- a/t/t9814-git-p4-rename.sh
+++ b/t/t9814-git-p4-rename.sh
@@ -141,7 +141,7 @@ test_expect_success 'detect copies' '
                git diff-tree -r -C HEAD &&
                git p4 submit &&
                p4 filelog //depot/file8 &&
-               p4 filelog //depot/file8 | test_must_fail grep -q "branch from" 
&&
+               ! p4 filelog //depot/file8 | grep -q "branch from" &&
 
                echo "file9" >>file2 &&
                git commit -a -m "Differentiate file2" &&
@@ -154,7 +154,7 @@ test_expect_success 'detect copies' '
                git config git-p4.detectCopies true &&
                git p4 submit &&
                p4 filelog //depot/file9 &&
-               p4 filelog //depot/file9 | test_must_fail grep -q "branch from" 
&&
+               ! p4 filelog //depot/file9 | grep -q "branch from" &&
 
                echo "file10" >>file2 &&
                git commit -a -m "Differentiate file2" &&
@@ -202,7 +202,7 @@ test_expect_success 'detect copies' '
                git config git-p4.detectCopies $(($level + 2)) &&
                git p4 submit &&
                p4 filelog //depot/file12 &&
-               p4 filelog //depot/file12 | test_must_fail grep -q "branch 
from" &&
+               ! p4 filelog //depot/file12 | grep -q "branch from" &&
 
                echo "file13" >>file2 &&
                git commit -a -m "Differentiate file2" &&
-- 
2.11.0

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