Added tests for GET /_stats/{metric}. (#743)

Signed-off-by: dblock <[email protected]>

tests/default/_core/stats.yaml

@@ -0,0 +1,25 @@
+$schema: ../../../json_schemas/test_story.schema.yaml
+
+description: Test stats.
+chapters:
+  - synopsis: Get global stats.
+    path: /_stats
+    method: GET
+    response:
+      status: 200
+  - synopsis: Get global stats with human fields.
+    path: /_stats
+    method: GET
+    parameters:
+      human: true
+    response:
+      status: 200
+  - synopsis: Get stats for a given metric.
+    path: /_stats/{metric}
+    method: GET
+    parameters:
+      metric: docs
+      expand_wildcards: all
+      forbid_closed_indices: false
+      groups: '*'
+      level: indices

tests/default/indices/stats.yaml

@@ -9,18 +9,6 @@ epilogues:
     method: DELETE
     status: [200, 404]
 chapters:
-  - synopsis: Get global stats.
-    path: /_stats
-    method: GET
-    response:
-      status: 200
-  - synopsis: Get global stats with human fields.
-    path: /_stats
-    method: GET
-    parameters:
-      human: true
-    response:
-      status: 200
   - synopsis: Get stats for an index.
     path: /{index}/_stats
     method: GET