Output expected and actual command lines upon exception.

1 files changed, 10 insertions, 1 deletions

diff --git a/node-admin/src/main/java/com/yahoo/vespa/hosted/node/admin/task/util/process/TestProcessFactory.java b/node-admin/src/main/java/com/yahoo/vespa/hosted/node/admin/task/util/process/TestProcessFactory.java
index 29f1ffef6f2..c87d3875d25 100644
--- a/node-admin/src/main/java/com/yahoo/vespa/hosted/node/admin/task/util/process/TestProcessFactory.java
+++ b/node-admin/src/main/java/com/yahoo/vespa/hosted/node/admin/task/util/process/TestProcessFactory.java
@@ -63,7 +63,9 @@ public class TestProcessFactory implements ProcessFactory {
             int missingCommandIndex = spawnCommandLines.size();
             throw new IllegalStateException("Command #" + missingCommandIndex +
                     " never executed: " +
-                    expectedSpawnCalls.get(missingCommandIndex).commandDescription);
+                    expectedSpawnCalls.get(missingCommandIndex).commandDescription +
+                    "\nExpected commands:\n" + getExpectedCommandLines() +
+                    "\nActual commands:\n" + spawnCommandLines);
         }
     }
 
@@ -101,4 +103,11 @@ public class TestProcessFactory implements ProcessFactory {
 
         return toReturn;
     }
+
+    private List<String> getExpectedCommandLines() {
+        return expectedSpawnCalls.stream()
+                .map(spawnCall -> spawnCall.commandDescription)
+                .toList();
+    }
+
 }