6 files changed, 16 insertions, 1 deletions
diff --git a/test/data/valid-messages/simplest-manual.message b/test/data/valid-messages/simplest-manual.message
index 5a5b4105..d6a960d6 100644
--- a/test/data/valid-messages/simplest-manual.message
+++ b/test/data/valid-messages/simplest-manual.message
@@ -20,6 +20,9 @@ STRING 'org.freedesktop.Foo'
 HEADER_FIELD MEMBER
 TYPE STRING
 STRING 'Bar'
+HEADER_FIELD SIGNATURE
+TYPE STRING
+STRING ''
 
 ALIGN 8
 END_LENGTH Header
diff --git a/test/data/valid-messages/standard-acquire-service.message b/test/data/valid-messages/standard-acquire-service.message
index 34036091..459f3bb4 100644
--- a/test/data/valid-messages/standard-acquire-service.message
+++ b/test/data/valid-messages/standard-acquire-service.message
@@ -13,6 +13,9 @@ STRING 'AcquireService'
 HEADER_FIELD DESTINATION
 TYPE STRING
 STRING 'org.freedesktop.DBus'
+HEADER_FIELD SIGNATURE
+TYPE STRING
+STRING 'su'
 ALIGN 8
 END_LENGTH Header
 START_LENGTH Body
diff --git a/test/data/valid-messages/standard-hello.message b/test/data/valid-messages/standard-hello.message
index 0ea9dba6..a08835e0 100644
--- a/test/data/valid-messages/standard-hello.message
+++ b/test/data/valid-messages/standard-hello.message
@@ -13,6 +13,9 @@ STRING 'Hello'
 HEADER_FIELD DESTINATION
 TYPE STRING
 STRING 'org.freedesktop.DBus'
+HEADER_FIELD SIGNATURE
+TYPE STRING
+STRING ''
 ALIGN 8
 END_LENGTH Header
 START_LENGTH Body
diff --git a/test/data/valid-messages/standard-list-services.message b/test/data/valid-messages/standard-list-services.message
index a3f1ff5c..3e10aebe 100644
--- a/test/data/valid-messages/standard-list-services.message
+++ b/test/data/valid-messages/standard-list-services.message
@@ -13,6 +13,9 @@ STRING 'ListServices'
 HEADER_FIELD DESTINATION
 TYPE STRING
 STRING 'org.freedesktop.DBus'
+HEADER_FIELD SIGNATURE
+TYPE STRING
+STRING ''
 ALIGN 8
 END_LENGTH Header
 START_LENGTH Body
diff --git a/test/data/valid-messages/standard-service-exists.message b/test/data/valid-messages/standard-service-exists.message
index 293ff787..6b57eb50 100644
--- a/test/data/valid-messages/standard-service-exists.message
+++ b/test/data/valid-messages/standard-service-exists.message
@@ -13,6 +13,9 @@ STRING 'ServiceExists'
 HEADER_FIELD DESTINATION
 TYPE STRING
 STRING 'org.freedesktop.DBus'
+HEADER_FIELD SIGNATURE
+TYPE STRING
+STRING 's'
 ALIGN 8
 END_LENGTH Header
 START_LENGTH Body
diff --git a/test/test-service.c b/test/test-service.c
index f8f8b92a..cb4ff582 100644
--- a/test/test-service.c
+++ b/test/test-service.c
@@ -17,7 +17,7 @@ quit (void)
 static void
 die (const char *message)
 {
-  fprintf (stderr, "*** %s", message);
+  fprintf (stderr, "*** test-service: %s", message);
   exit (1);
 }