From 713fb38972bdc64e30edf547b2f95bb673fc3cb0 Mon Sep 17 00:00:00 2001
From: Denis Molony <dmolony@users.noreply.github.com>
Date: Thu, 23 Jul 2020 18:12:16 +1000
Subject: [PATCH] test installation

---
 src/com/bytezone/diskbrowser/dosmaster/DosMasterDisk.java | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/com/bytezone/diskbrowser/dosmaster/DosMasterDisk.java b/src/com/bytezone/diskbrowser/dosmaster/DosMasterDisk.java
index 387a7ff..13716c1 100644
--- a/src/com/bytezone/diskbrowser/dosmaster/DosMasterDisk.java
+++ b/src/com/bytezone/diskbrowser/dosmaster/DosMasterDisk.java
@@ -181,6 +181,12 @@ public class DosMasterDisk
         st -= 16 * 4096;
 
       int num = (v - st) / sz - 1;
+      
+      int test = switch(num)
+          {
+        case 1->27;
+        default -> throw new IllegalArgumentException ("Unexpected value: " + num);
+          };
 
       text.append (String.format (" %d volumes of %d sectors%n", num, sz * 2));