diff --git a/dynawaltz/src/test/java/com/powsybl/dynawaltz/xml/AbstractDynamicModelXmlTest.java b/dynawaltz/src/test/java/com/powsybl/dynawaltz/xml/AbstractDynamicModelXmlTest.java
index c92778183..7573e0609 100644
--- a/dynawaltz/src/test/java/com/powsybl/dynawaltz/xml/AbstractDynamicModelXmlTest.java
+++ b/dynawaltz/src/test/java/com/powsybl/dynawaltz/xml/AbstractDynamicModelXmlTest.java
@@ -86,6 +86,14 @@ void setupDynawaltzContext() {
 
     protected abstract void addDynamicModels();
 
+    protected void addModelIfNotNull(BlackBoxModel... models) {
+        for (BlackBoxModel model : models) {
+            if (model != null) {
+                dynamicModels.add(model);
+            }
+        }
+    }
+
     protected void checkReport(String report) throws IOException {
         StringWriter sw = new StringWriter();
         reportNode.print(sw);
diff --git a/dynawaltz/src/test/java/com/powsybl/dynawaltz/xml/EmptyPhaseShifterBlockingIXmlTest.java b/dynawaltz/src/test/java/com/powsybl/dynawaltz/xml/EmptyPhaseShifterBlockingIXmlTest.java
index df633762d..8b66568b6 100644
--- a/dynawaltz/src/test/java/com/powsybl/dynawaltz/xml/EmptyPhaseShifterBlockingIXmlTest.java
+++ b/dynawaltz/src/test/java/com/powsybl/dynawaltz/xml/EmptyPhaseShifterBlockingIXmlTest.java
@@ -27,15 +27,20 @@ protected void setupNetwork() {
 
     @Override
     protected void addDynamicModels() {
-        dynamicModels.add(PhaseShifterIAutomationSystemBuilder.of(network)
+        addModelIfNotNull(
+            PhaseShifterIAutomationSystemBuilder.of(network, reportNode)
                 .dynamicModelId("BBM_PS")
                 .parameterSetId("ps")
                 .transformer("NGEN_NHV1")
-                .build());
-        dynamicModels.add(PhaseShifterBlockingIAutomationSystemBuilder.of(network)
+                .build(),
+            PhaseShifterBlockingIAutomationSystemBuilder.of(network, reportNode)
                 .dynamicModelId("BBM_PSB")
                 .parameterSetId("psb")
                 .phaseShifterId("WRONG_ID")
+                .build(),
+            PhaseShifterBlockingIAutomationSystemBuilder.of(network, reportNode)
+                .dynamicModelId("BBM_PSB2")
+                .parameterSetId("psb")
                 .build());
     }
 
@@ -46,6 +51,10 @@ void writeModel() throws SAXException, IOException {
         validate("dyd.xsd", "empty_phase_shifter_blocking_i_dyd.xml", tmpDir.resolve(DynaWaltzConstants.DYD_FILENAME));
         checkReport("""
                 + Test DYD
+                   Model BBM_PS instantiation successful
+                   Model BBM_PSB instantiation successful
+                   'phaseShifterId' field is not set
+                   Model BBM_PSB2 cannot be instantiated
                    + Dynawaltz models processing
                       PhaseShifterBlockingI BBM_PSB equipment WRONG_ID is not a PhaseShifterIModel, the automation system will be skipped
                 """);