With IMGOPTSSYNTAX, $TEST_IMG is useless for this test (it only tests
the file-posix protocol driver).  Therefore, if $TEST_IMG_FILE is set,
use that instead.

Because this test requires the file protocol, $TEST_IMG_FILE will always
be set if $IMGOPTSSYNTAX is true.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
---
 tests/qemu-iotests/232 | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tests/qemu-iotests/232 b/tests/qemu-iotests/232
index 93e5d641a3..e48bc8f5db 100755
--- a/tests/qemu-iotests/232
+++ b/tests/qemu-iotests/232
@@ -69,6 +69,10 @@ size=128M
 
 _make_test_img $size
 
+if [ -n "$TEST_IMG_FILE" ]; then
+    TEST_IMG=$TEST_IMG_FILE
+fi
+
 echo
 echo "=== -drive with read-write image: read-only/auto-read-only combinations ==="
 echo
-- 
2.20.1