add unittest for full json/yaml

Signed-off-by: Gong Yongjie <yong-jie.gong@microfocus.com>

cmd/helm/testdata/output/list-full-json.txt

@@ -0,0 +1 @@
+[{"name":"hummingbird","namespace":"default","revision":"1","updated":"2016-01-16 00:00:03 +0000 UTC","status":"deployed","chart":"chickadee-1.0.0","chart_name":"chickadee","chart_version":"1.0.0","app_version":"0.0.1"},{"name":"iguana","namespace":"default","revision":"2","updated":"2016-01-16 00:00:04 +0000 UTC","status":"deployed","chart":"chickadee-1.0.0","chart_name":"chickadee","chart_version":"1.0.0","app_version":"0.0.1"},{"name":"rocket","namespace":"default","revision":"1","updated":"2016-01-16 00:00:02 +0000 UTC","status":"failed","chart":"chickadee-1.0.0","chart_name":"chickadee","chart_version":"1.0.0","app_version":"0.0.1"},{"name":"starlord","namespace":"default","revision":"2","updated":"2016-01-16 00:00:01 +0000 UTC","status":"deployed","chart":"chickadee-1.0.0","chart_name":"chickadee","chart_version":"1.0.0","app_version":"0.0.1"}]

cmd/helm/testdata/output/list-full-yaml.txt

@@ -0,0 +1,36 @@
+- app_version: 0.0.1
+  chart: chickadee-1.0.0
+  chart_name: chickadee
+  chart_version: 1.0.0
+  name: hummingbird
+  namespace: default
+  revision: "1"
+  status: deployed
+  updated: 2016-01-16 00:00:03 +0000 UTC
+- app_version: 0.0.1
+  chart: chickadee-1.0.0
+  chart_name: chickadee
+  chart_version: 1.0.0
+  name: iguana
+  namespace: default
+  revision: "2"
+  status: deployed
+  updated: 2016-01-16 00:00:04 +0000 UTC
+- app_version: 0.0.1
+  chart: chickadee-1.0.0
+  chart_name: chickadee
+  chart_version: 1.0.0
+  name: rocket
+  namespace: default
+  revision: "1"
+  status: failed
+  updated: 2016-01-16 00:00:02 +0000 UTC
+- app_version: 0.0.1
+  chart: chickadee-1.0.0
+  chart_name: chickadee
+  chart_version: 1.0.0
+  name: starlord
+  namespace: default
+  revision: "2"
+  status: deployed
+  updated: 2016-01-16 00:00:01 +0000 UTC