t5500, t5601: skip tests which exercise paths with '[::1]' on Cygwin

Parsing repositories which contain '[::1]' is broken on Cygwin. It seems
as if Cygwin is confusing those as drive letter prefixes or something
like this, but I couldn't deduce the actual root cause.

Mark those tests as broken for now.

Signed-off-by: Patrick Steinhardt <[email protected]>
Signed-off-by: Taylor Blau <[email protected]>

Author: pks-t

t/t5500-fetch-pack.sh

@@ -774,7 +774,7 @@ do
 	# file with scheme
 	for p in file
 	do
-		test_expect_success !MINGW "fetch-pack --diag-url $p://$h/$r" '
+		test_expect_success !WINDOWS "fetch-pack --diag-url $p://$h/$r" '
 			check_prot_path $p://$h/$r $p "/$r"
 		'
 		test_expect_success MINGW "fetch-pack --diag-url $p://$h/$r" '
@@ -784,7 +784,7 @@ do
 			check_prot_path $p:///$r $p "/$r"
 		'
 		# No "/~" -> "~" conversion for file
-		test_expect_success !MINGW "fetch-pack --diag-url $p://$h/~$r" '
+		test_expect_success !WINDOWS "fetch-pack --diag-url $p://$h/~$r" '
 			check_prot_path $p://$h/~$r $p "/~$r"
 		'
 		test_expect_success MINGW "fetch-pack --diag-url $p://$h/~$r" '
@@ -806,11 +806,17 @@ do
 	p=ssh
 	for h in host [::1]
 	do
-		test_expect_success "fetch-pack --diag-url $h:$r" '
+		expectation="success"
+		if test_have_prereq CYGWIN && test "$h" = "[::1]"
+		then
+			expectation="failure"
+		fi
+
+		test_expect_$expectation "fetch-pack --diag-url $h:$r" '
 			check_prot_host_port_path $h:$r $p "$h" NONE "$r"
 		'
 		# Do "/~" -> "~" conversion
-		test_expect_success "fetch-pack --diag-url $h:/~$r" '
+		test_expect_$expectation "fetch-pack --diag-url $h:/~$r" '
 			check_prot_host_port_path $h:/~$r $p "$h" NONE "~$r"
 		'
 	done

t/t5601-clone.sh

@@ -530,10 +530,17 @@ do
 	'
 done
 
+# Parsing of paths that look like IPv6 addresses is broken on Cygwin.
+expectation_for_ipv6_tests=success
+if test_have_prereq CYGWIN
+then
+	expectation_for_ipv6_tests=failure
+fi
+
 #ipv6
 for repo in rep rep/home/project 123
 do
-	test_expect_success "clone [::1]:$repo" '
+	test_expect_$expectation_for_ipv6_tests "clone [::1]:$repo" '
 		test_clone_url [::1]:$repo ::1 "$repo"
 	'
 done
@@ -542,7 +549,7 @@ test_expect_success "clone host:/~repo" '
 	test_clone_url host:/~repo host "~repo"
 '
 
-test_expect_success "clone [::1]:/~repo" '
+test_expect_$expectation_for_ipv6_tests "clone [::1]:/~repo" '
 	test_clone_url [::1]:/~repo ::1 "~repo"
 '