mingw: do not bother to test funny file names

MSYS2 actually allows to create files or directories whose names contain
tabs, newlines or colors, even if plain Win32 API cannot access them.
As we are using an MSYS2 bash to run the tests, such files or
directories are created successfully, but Git itself has no chance to
work with them because it is a regular Windows program, hence limited by
the Win32 API.

With this change, on Windows otherwise failing tests in
t3300-funny-names.sh, t3600-rm.sh, t3703-add-magic-pathspec.sh,
t3902-quoted.sh, t4016-diff-quote.sh, t4135-apply-weird-filenames.sh,
t9200-git-cvsexportcommit.sh, and t9903-bash-prompt.sh are skipped.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

8 files changed, 9 insertions, 5 deletions

diff --git a/t/t3300-funny-names.sh b/t/t3300-funny-names.sh
index 9a146f133..04de03cad 100755
--- a/t/t3300-funny-names.sh
+++ b/t/t3300-funny-names.sh
@@ -13,6 +13,7 @@ tree, index, and tree objects.
 
 HT='	'
 
+test_have_prereq MINGW ||
 echo 2>/dev/null > "Name with an${HT}HT"
 if ! test -f "Name with an${HT}HT"
 then
diff --git a/t/t3600-rm.sh b/t/t3600-rm.sh
index 9d90d2c93..11e752648 100755
--- a/t/t3600-rm.sh
+++ b/t/t3600-rm.sh
@@ -14,7 +14,7 @@ test_expect_success \
      git add -- foo bar baz 'space embedded' -q &&
      git commit -m 'add normal files'"
 
-if touch -- 'tab	embedded' 'newline
+if test_have_prereq !MINGW && touch -- 'tab	embedded' 'newline
 embedded' 2>/dev/null
 then
 	test_set_prereq FUNNYNAMES
diff --git a/t/t3703-add-magic-pathspec.sh b/t/t3703-add-magic-pathspec.sh
index 5115de703..3ef525a55 100755
--- a/t/t3703-add-magic-pathspec.sh
+++ b/t/t3703-add-magic-pathspec.sh
@@ -38,7 +38,7 @@ cat >expected <<EOF
 add 'sub/foo'
 EOF
 
-if mkdir ":" 2>/dev/null
+if test_have_prereq !MINGW && mkdir ":" 2>/dev/null
 then
 	test_set_prereq COLON_DIR
 fi
diff --git a/t/t3902-quoted.sh b/t/t3902-quoted.sh
index 892f56784..f528008c3 100755
--- a/t/t3902-quoted.sh
+++ b/t/t3902-quoted.sh
@@ -12,6 +12,7 @@ GN='純'
 HT='	'
 DQ='"'
 
+test_have_prereq MINGW ||
 echo foo 2>/dev/null > "Name and an${HT}HT"
 if ! test -f "Name and an${HT}HT"
 then
diff --git a/t/t4016-diff-quote.sh b/t/t4016-diff-quote.sh
index cd543ecc5..9c48e5c2c 100755
--- a/t/t4016-diff-quote.sh
+++ b/t/t4016-diff-quote.sh
@@ -13,6 +13,7 @@ P1='pathname	with HT'
 P2='pathname with SP'
 P3='pathname
 with LF'
+test_have_prereq !MINGW &&
 echo 2>/dev/null >"$P1" && test -f "$P1" && rm -f "$P1" || {
 	skip_all='Your filesystem does not allow tabs in filenames'
 	test_done
diff --git a/t/t4135-apply-weird-filenames.sh b/t/t4135-apply-weird-filenames.sh
index bf5dc5728..27cb0009f 100755
--- a/t/t4135-apply-weird-filenames.sh
+++ b/t/t4135-apply-weird-filenames.sh
@@ -19,7 +19,8 @@ test_expect_success 'setup' '
 
 	test_when_finished "rm -f \"tab	embedded.txt\"" &&
 	test_when_finished "rm -f '\''\"quoteembedded\".txt'\''" &&
-	if touch -- "tab	embedded.txt" '\''"quoteembedded".txt'\''
+	if test_have_prereq !MINGW &&
+		touch -- "tab	embedded.txt" '\''"quoteembedded".txt'\''
 	then
 		test_set_prereq FUNNYNAMES
 	fi
diff --git a/t/t9200-git-cvsexportcommit.sh b/t/t9200-git-cvsexportcommit.sh
index 812c9cd46..5cfb9cfc5 100755
--- a/t/t9200-git-cvsexportcommit.sh
+++ b/t/t9200-git-cvsexportcommit.sh
@@ -197,7 +197,7 @@ if p="Å/goo/a/b/c/d/e/f/g/h/i/j/k/l/m/n/o/p/q/r/s/t/u/v/w/x/y/z/å/ä/ö" &&
 then
 
 # This test contains UTF-8 characters
-test_expect_success \
+test_expect_success !MINGW \
      'File with non-ascii file name' \
      'mkdir -p Å/goo/a/b/c/d/e/f/g/h/i/j/k/l/m/n/o/p/q/r/s/t/u/v/w/x/y/z/å/ä/ö &&
       echo Foo >Å/goo/a/b/c/d/e/f/g/h/i/j/k/l/m/n/o/p/q/r/s/t/u/v/w/x/y/z/å/ä/ö/gårdetsågårdet.txt &&
diff --git a/t/t9903-bash-prompt.sh b/t/t9903-bash-prompt.sh
index af82049f8..ffbfa0efb 100755
--- a/t/t9903-bash-prompt.sh
+++ b/t/t9903-bash-prompt.sh
@@ -67,7 +67,7 @@ repo_with_newline='repo
 with
 newline'
 
-if mkdir "$repo_with_newline" 2>/dev/null
+if test_have_prereq !MINGW && mkdir "$repo_with_newline" 2>/dev/null
 then
 	test_set_prereq FUNNYNAMES
 else