t7501: always use test_cmp instead of diff

diff --git a/t/t3700-add.sh b/t/t3700-add.sh
index 287e058e3766df129dcde82aeddecac59b46e2a6..2ac93a346d016c65614f2bf6142049e7bdc39bd1 100755 (executable)
--- a/t/t3700-add.sh
+++ b/t/t3700-add.sh
@@ -81,17 +81,17 @@ test_expect_success '.gitignore test setup' '
 
 test_expect_success '.gitignore is honored' '
        git add . &&
-       ! git ls-files | grep "\\.ig"
+       ! (git ls-files | grep "\\.ig")
 '
 
 test_expect_success 'error out when attempting to add ignored ones without -f' '
-       ! git add a.?? &&
-       ! git ls-files | grep "\\.ig"
+       test_must_fail git add a.?? &&
+       ! (git ls-files | grep "\\.ig")
 '
 
 test_expect_success 'error out when attempting to add ignored ones without -f' '
-       ! git add d.?? &&
-       ! git ls-files | grep "\\.ig"
+       test_must_fail git add d.?? &&
+       ! (git ls-files | grep "\\.ig")
 '
 
 test_expect_success 'add ignored ones with -f' '
@@ -179,4 +179,55 @@ test_expect_success 'git add --refresh' '
        test -z "`git diff-index HEAD -- foo`"
 '
 
+test_expect_success 'git add should fail atomically upon an unreadable file' '
+       git reset --hard &&
+       date >foo1 &&
+       date >foo2 &&
+       chmod 0 foo2 &&
+       test_must_fail git add --verbose . &&
+       ! ( git ls-files foo1 | grep foo1 )
+'
+
+rm -f foo2
+
+test_expect_success 'git add --ignore-errors' '
+       git reset --hard &&
+       date >foo1 &&
+       date >foo2 &&
+       chmod 0 foo2 &&
+       test_must_fail git add --verbose --ignore-errors . &&
+       git ls-files foo1 | grep foo1
+'
+
+rm -f foo2
+
+test_expect_success 'git add (add.ignore-errors)' '
+       git config add.ignore-errors 1 &&
+       git reset --hard &&
+       date >foo1 &&
+       date >foo2 &&
+       chmod 0 foo2 &&
+       test_must_fail git add --verbose . &&
+       git ls-files foo1 | grep foo1
+'
+rm -f foo2
+
+test_expect_success 'git add (add.ignore-errors = false)' '
+       git config add.ignore-errors 0 &&
+       git reset --hard &&
+       date >foo1 &&
+       date >foo2 &&
+       chmod 0 foo2 &&
+       test_must_fail git add --verbose . &&
+       ! ( git ls-files foo1 | grep foo1 )
+'
+
+test_expect_success 'git add '\''fo\[ou\]bar'\'' ignores foobar' '
+       git reset --hard &&
+       touch fo\[ou\]bar foobar &&
+       git add '\''fo\[ou\]bar'\'' &&
+       git ls-files fo\[ou\]bar | grep -F fo\[ou\]bar &&
+       ! ( git ls-files foobar | grep foobar )
+'
+
 test_done