testSaneUsedFiles: check getCurrentFile is the first file in the getUsedFiles list

Author: sbesson

Diff for: components/test-suite/src/loci/tests/testng/FormatReaderTest.java

@@ -1866,10 +1866,9 @@ public void testSaneUsedFiles() {
         msg = "Used files list contains duplicates";
       }
 
-      if (base.length == 1) {
-        if (!base[0].equals(file)) success = false;
-      }
-      else if (success) {
+      if (!base[0].equals(file)) success = false;
+
+      if (success) {
         Arrays.sort(base);
         IFormatReader r =
           /*config.noStitching() ? new ImageReader() :*/ new ImageReader();