Update test fixtures to use explicit run

Change-Id: I3060a2bf57cef10a5a7ec5299e3491f1f6751221
diff --git a/tests/fixtures/layouts/smtp.yaml b/tests/fixtures/layouts/smtp.yaml
index 0654448..77391a0 100644
--- a/tests/fixtures/layouts/smtp.yaml
+++ b/tests/fixtures/layouts/smtp.yaml
@@ -41,10 +41,12 @@
 - job:
     name: base
     parent: null
+    run: playbooks/base.yaml
 
 - job:
     name: project-merge
     hold-following-changes: true
+    run: playbooks/project-merge.yaml
 
 - job:
     name: project-test1
@@ -52,6 +54,7 @@
       nodes:
         - name: controller
           label: label1
+    run: playbooks/project-test1.yaml
 
 - job:
     name: project-test1
@@ -60,9 +63,11 @@
       nodes:
         - name: controller
           label: label2
+    run: playbooks/project-test1.yaml
 
 - job:
     name: project-test2
+    run: playbooks/project-test2.yaml
 
 - project:
     name: org/project