Adds tests for /_remote/info and _script_context. (#637)

* tests/default/_core/ refresh, remote_info and script_context

Signed-off-by: Bruno Lloret <[email protected]>
Signed-off-by: dblock <[email protected]>
Co-authored-by: Bruno Lloret <[email protected]>

tests/default/_core/refresh.yaml

@@ -0,0 +1,10 @@
+$schema: ../../../json_schemas/test_story.schema.yaml
+
+description: Test _refresh.
+
+chapters:
+  - synopsis: Refresh all indices in the cluster.
+    path: /_refresh
+    method: GET
+    response:
+      status: 200

tests/default/_core/remote/info.yaml

@@ -0,0 +1,27 @@
+$schema: ../../../../json_schemas/test_story.schema.yaml
+
+description: Test _remote/info.
+
+prologues:
+  - method: PUT
+    path: /_cluster/settings
+    request:
+      payload:
+        transient: 
+          cluster.remote:
+            cluster2:
+              seeds:
+                - localhost:4242
+chapters:
+  - synopsis: Retrieve information about remote clusters.
+    path: /_remote/info
+    method: GET
+    response:
+      status: 200
+epilogues:
+  - method: PUT
+    path: /_cluster/settings
+    request:
+      payload:
+        transient: 
+          cluster.remote.cluster2.seeds: []

tests/default/_core/script_context.yaml

@@ -0,0 +1,10 @@
+$schema: ../../../json_schemas/test_story.schema.yaml
+
+description: Test the _script_context endpoint to retrieve available script contexts.
+
+chapters:
+  - synopsis: Retrieve available script contexts.
+    path: /_script_context
+    method: GET
+    response:
+      status: 200

tests/default/indices/refresh.yaml

@@ -14,11 +14,6 @@ prologues:
         year: 1991
     status: [201]
 chapters:
-  - synopsis: Refresh.
-    path: /_refresh
-    method: POST
-    response:
-      status: 200
   - synopsis: Refresh an index.
     path: /{index}/_refresh
     method: POST