Add testcases for property and property groups

Change-Id: I4b30d0729a704d6833c840ea08daeee961a5730b
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/src/test/yaml/propertygentest/grouptwo.yaml b/src/test/yaml/propertygentest/grouptwo.yaml
new file mode 100644
index 0000000..4f2db02
--- /dev/null
+++ b/src/test/yaml/propertygentest/grouptwo.yaml
@@ -0,0 +1,26 @@
+- name: test property group
+  class: group
+  group: property
+  type: string
+  members:
+    - interface: xyz.openbmc_project.Test.Iface6
+      property: Foo
+      meta: property1
+    - interface: xyz.openbmc_project.Test.Iface1
+      property: Value
+      meta: property2
+
+- name: test property group 3
+  class: group
+  group: property
+  type: int32
+  members:
+    - interface: xyz.openbmc_project.Test.Iface3
+      property: Bar
+      meta: property1
+    - interface: xyz.openbmc_project.Test.Iface2
+      property: Value
+      meta: property2
+    - interface: xyz.openbmc_project.Test.Iface6
+      property: Baz
+      meta: property3