Add JSON schema validation for job API

Start validating against the exciting JSON schema for the job controller JSON
response.

The JSON schema is not complete since there is quite a lot missing, this will
be done in a separate issue.

spec/controllers/projects/jobs_controller_spec.rb

@@ -149,6 +149,7 @@ describe Projects::JobsController, :clean_gitlab_redis_shared_state do
 
       it 'exposes needed information' do
         expect(response).to have_gitlab_http_status(:ok)
+        expect(response).to match_response_schema('job/job_details')
         expect(json_response['raw_path']).to match(%r{jobs/\d+/raw\z})
         expect(json_response['merge_request']['path']).to match(%r{merge_requests/\d+\z})
         expect(json_response['new_issue_path']).to include('/issues/new')
@@ -170,6 +171,7 @@ describe Projects::JobsController, :clean_gitlab_redis_shared_state do
 
       it 'exposes needed information' do
         expect(response).to have_gitlab_http_status(:ok)
+        expect(response).to match_response_schema('job/job_details')
         expect(json_response['artifact']['download_path']).to match(%r{artifacts/download})
         expect(json_response['artifact']['browse_path']).to match(%r{artifacts/browse})
         expect(json_response['artifact']).not_to have_key(:expired)
@@ -178,7 +180,7 @@ describe Projects::JobsController, :clean_gitlab_redis_shared_state do
         expect(json_response.dig('merge_request', 'path')).to match(%r{merge_requests/\d+\z})
       end
 
-      context 'when request JSON for successful job and expired artifacts' do
+      context 'when request JSON for successful job with expired artifacts' do
         let(:merge_request) { create(:merge_request, source_project: project) }
         let(:job) { create(:ci_build, :success, :artifacts, :expired, pipeline: pipeline) }
 
@@ -193,6 +195,7 @@ describe Projects::JobsController, :clean_gitlab_redis_shared_state do
 
         it 'exposes needed information' do
           expect(response).to have_gitlab_http_status(:ok)
+          expect(response).to match_response_schema('job/job_details')
           expect(json_response['artifact']).not_to have_key(:download_path)
           expect(json_response['artifact']).not_to have_key(:browse_path)
           expect(json_response['artifact']['expired']).to eq(true)

spec/fixtures/api/schemas/ci_detailed_status.json

@@ -18,7 +18,29 @@
     "tooltip": { "type": "string" },
     "has_details": { "type": "boolean" },
     "details_path": { "type": "string" },
-    "favicon": { "type": "string" }
+    "favicon": { "type": "string" },
+    "action": {
+      "type": "object",
+      "required": [
+        "icon",
+        "title",
+        "path",
+        "method"
+      ],
+      "properties": {
+        "icon": {
+          "type": "string",
+          "enum": [
+            "retry",
+            "play",
+            "cancel"
+          ]
+        },
+        "title": { "type": "string" },
+        "path": { "type": "string" },
+        "method": { "$ref": "http_method.json" }
+      }
+    }
   },
   "additionalProperties": false
 }

spec/fixtures/api/schemas/http_method.json

+{
+  "type": "string",
+  "description": "HTTP methods that the API can specify to send.",
+  "enum": [ "post", "get", "put", "patch" ]
+}

spec/fixtures/api/schemas/job/artifact.json

+{
+  "type": "object",
+  "properties": {
+    "download_path": { "type": "string"},
+    "browse_path": { "type": "string"},
+    "keep_path": { "type": "string"},
+    "expired": { "type": "boolean" },
+    "expire_at": { "type": "string", "format": "date-time" }
+  },
+  "additionalProperties": false
+}

spec/fixtures/api/schemas/job.json → spec/fixtures/api/schemas/job/job.json

 {
+  "description": "Basic job information",
   "type": "object",
   "required": [
     "id",
@@ -13,12 +14,18 @@
   "properties": {
     "id": { "type": "integer" },
     "name": { "type": "string" },
-    "started": { "type": "boolean" } ,
+    "started": {
+      "oneOf": [
+        { "type": "string", "format": "date-time" },
+        { "type": "boolean" }
+      ]
+    },
     "build_path": { "type": "string" },
+    "retry_path": { "type": "string" },
     "playable": { "type": "boolean" },
     "created_at": { "type": "string" },
     "updated_at": { "type": "string" },
-    "status": { "$ref": "ci_detailed_status.json" }
+    "status": { "$ref": "../ci_detailed_status.json" }
   },
-  "additionalProperties": false
+  "additionalProperties": true
 }

spec/fixtures/api/schemas/job/job_details.json

+{
+  "allOf": [{ "$ref": "job.json" }],
+  "description": "An extension of job.json with more detailed information",
+  "properties": {
+    "artifact": { "$ref": "artifact.json" }
+  }
+}

spec/fixtures/api/schemas/pipeline_stage.json

@@ -13,7 +13,7 @@
     "groups": { "optional": true },
     "latest_statuses": {
       "type": "array",
-      "items": { "$ref": "job.json" },
+      "items": { "$ref": "job/job.json" },
       "optional": true
     },
     "status": { "$ref": "ci_detailed_status.json" },