difftool: fallback on merge.guitool

diff --git a/t/t5526-fetch-submodules.sh b/t/t5526-fetch-submodules.sh
index 0f730d7781568861564b44d534bad728095ac71d..6c2f9b2ba266ad910769745e72285a840b33238b 100755 (executable)
--- a/t/t5526-fetch-submodules.sh
+++ b/t/t5526-fetch-submodules.sh
@@ -98,8 +98,8 @@ test_expect_success "fetch alone only fetches superproject" '
                cd downstream &&
                git fetch >../actual.out 2>../actual.err
        ) &&
-       ! test -s actual.out &&
-       ! test -s actual.err
+       test_must_be_empty actual.out &&
+       test_must_be_empty actual.err
 '
 
 test_expect_success "fetch --no-recurse-submodules only fetches superproject" '
@@ -107,8 +107,8 @@ test_expect_success "fetch --no-recurse-submodules only fetches superproject" '
                cd downstream &&
                git fetch --no-recurse-submodules >../actual.out 2>../actual.err
        ) &&
-       ! test -s actual.out &&
-       ! test -s actual.err
+       test_must_be_empty actual.out &&
+       test_must_be_empty actual.err
 '
 
 test_expect_success "using fetchRecurseSubmodules=true in .gitmodules recurses into submodules" '
@@ -127,8 +127,8 @@ test_expect_success "--no-recurse-submodules overrides .gitmodules config" '
                cd downstream &&
                git fetch --no-recurse-submodules >../actual.out 2>../actual.err
        ) &&
-       ! test -s actual.out &&
-       ! test -s actual.err
+       test_must_be_empty actual.out &&
+       test_must_be_empty actual.err
 '
 
 test_expect_success "using fetchRecurseSubmodules=false in .git/config overrides setting in .gitmodules" '
@@ -137,8 +137,8 @@ test_expect_success "using fetchRecurseSubmodules=false in .git/config overrides
                git config submodule.submodule.fetchRecurseSubmodules false &&
                git fetch >../actual.out 2>../actual.err
        ) &&
-       ! test -s actual.out &&
-       ! test -s actual.err
+       test_must_be_empty actual.out &&
+       test_must_be_empty actual.err
 '
 
 test_expect_success "--recurse-submodules overrides fetchRecurseSubmodules setting from .git/config" '
@@ -157,8 +157,8 @@ test_expect_success "--quiet propagates to submodules" '
                cd downstream &&
                git fetch --recurse-submodules --quiet >../actual.out 2>../actual.err
        ) &&
-       ! test -s actual.out &&
-       ! test -s actual.err
+       test_must_be_empty actual.out &&
+       test_must_be_empty actual.err
 '
 
 test_expect_success "--quiet propagates to parallel submodules" '
@@ -166,8 +166,8 @@ test_expect_success "--quiet propagates to parallel submodules" '
                cd downstream &&
                git fetch --recurse-submodules -j 2 --quiet  >../actual.out 2>../actual.err
        ) &&
-       ! test -s actual.out &&
-       ! test -s actual.err
+       test_must_be_empty actual.out &&
+       test_must_be_empty actual.err
 '
 
 test_expect_success "--dry-run propagates to submodules" '
@@ -221,8 +221,8 @@ test_expect_success "--no-recurse-submodules overrides config setting" '
                git config fetch.recurseSubmodules true &&
                git fetch --no-recurse-submodules >../actual.out 2>../actual.err
        ) &&
-       ! test -s actual.out &&
-       ! test -s actual.err
+       test_must_be_empty actual.out &&
+       test_must_be_empty actual.err
 '
 
 test_expect_success "Recursion doesn't happen when no new commits are fetched in the superproject" '
@@ -235,8 +235,8 @@ test_expect_success "Recursion doesn't happen when no new commits are fetched in
                git config --unset fetch.recurseSubmodules &&
                git fetch >../actual.out 2>../actual.err
        ) &&
-       ! test -s actual.out &&
-       ! test -s actual.err
+       test_must_be_empty actual.out &&
+       test_must_be_empty actual.err
 '
 
 test_expect_success "Recursion stops when no new submodule commits are fetched" '
@@ -268,7 +268,7 @@ test_expect_success "Recursion doesn't happen when new superproject commits don'
                cd downstream &&
                git fetch >../actual.out 2>../actual.err
        ) &&
-       ! test -s actual.out &&
+       test_must_be_empty actual.out &&
        test_i18ncmp expect.err.file actual.err
 '
 
@@ -357,8 +357,8 @@ test_expect_success "'--recurse-submodules=on-demand' doesn't recurse when no ne
                git fetch --recurse-submodules=on-demand >../actual.out 2>../actual.err &&
                git config --unset fetch.recurseSubmodules
        ) &&
-       ! test -s actual.out &&
-       ! test -s actual.err
+       test_must_be_empty actual.out &&
+       test_must_be_empty actual.err
 '
 
 test_expect_success "'--recurse-submodules=on-demand' recurses as deep as necessary (and ignores config)" '
@@ -402,7 +402,7 @@ test_expect_success "'--recurse-submodules=on-demand' stops when no new submodul
                cd downstream &&
                git fetch --recurse-submodules=on-demand >../actual.out 2>../actual.err
        ) &&
-       ! test -s actual.out &&
+       test_must_be_empty actual.out &&
        test_i18ncmp expect.err.file actual.err
 '
 
@@ -477,7 +477,7 @@ test_expect_success "don't fetch submodule when newly recorded commits are alrea
                cd downstream &&
                git fetch >../actual.out 2>../actual.err
        ) &&
-       ! test -s actual.out &&
+       test_must_be_empty actual.out &&
        test_i18ncmp expect.err actual.err &&
        (
                cd submodule &&
@@ -495,7 +495,6 @@ test_expect_success "'fetch.recurseSubmodules=on-demand' works also without .git
        git add submodule &&
        git rm .gitmodules &&
        git commit -m "new submodule without .gitmodules" &&
-       printf "" >expect.out &&
        head2=$(git rev-parse --short HEAD) &&
        echo "From $pwd/." >expect.err.2 &&
        echo "   $head1..$head2  master     -> origin/master" >>expect.err.2 &&
@@ -514,7 +513,7 @@ test_expect_success "'fetch.recurseSubmodules=on-demand' works also without .git
                git config --unset fetch.recurseSubmodules &&
                git reset --hard
        ) &&
-       test_i18ncmp expect.out actual.out &&
+       test_must_be_empty actual.out &&
        test_i18ncmp expect.err.2 actual.err &&
        git checkout HEAD^ -- .gitmodules &&
        git add .gitmodules &&