Update test fixtures to use explicit run

Change-Id: I3060a2bf57cef10a5a7ec5299e3491f1f6751221
diff --git a/tests/fixtures/layouts/one-job-project.yaml b/tests/fixtures/layouts/one-job-project.yaml
index 4b682d3..d5346f6 100644
--- a/tests/fixtures/layouts/one-job-project.yaml
+++ b/tests/fixtures/layouts/one-job-project.yaml
@@ -43,13 +43,16 @@
 - job:
     name: base
     parent: null
+    run: playbooks/base.yaml
 
 - job:
     name: one-job-project-merge
     hold-following-changes: true
+    run: playbooks/one-job-project-merge.yaml
 
 - job:
     name: one-job-project-post
+    run: playbooks/one-job-project-post.yaml
 
 - project:
     name: org/one-job-project