fix path check

Author: scottf

src/test/java/io/nats/NatsRunnerUtilsTest.java

@@ -15,6 +15,7 @@
 
 import org.junit.jupiter.api.Test;
 
+import java.io.File;
 import java.io.IOException;
 import java.nio.file.Path;
 import java.nio.file.Paths;
@@ -145,9 +146,12 @@ private static void validateClusterInserts(int count,
             if (jsStoreDir == null) {
                 assertNull(ci.node.jsStoreDir);
             }
-            else {
+            else if (File.separatorChar == '\\') {
                 assertEquals(jsStoreDir + "\\" + port, ci.node.jsStoreDir.toString());
             }
+            else {
+                assertEquals(jsStoreDir + "/" + port, ci.node.jsStoreDir.toString());
+            }
         }
     }
 }