Fix Jenkins Cobertura badge and tests (#2468)

services/jenkins/jenkins-coverage.service.js

@@ -22,13 +22,14 @@ const coberturaCoverageSchema = Joi.object({
     elements: Joi.array()
       .items(
         Joi.object({
-          name: 'Lines',
+          name: Joi.string().required(),
           ratio: Joi.number()
             .min(0)
             .max(100)
             .required(),
         })
       )
+      .has(Joi.object({ name: 'Lines' }))
       .min(1)
       .required(),
   }).required(),
@@ -130,8 +131,11 @@ class CoberturaJenkinsCoverage extends BaseJenkinsCoverage {
       options,
       schema: coberturaCoverageSchema,
     })
+    const lineCoverage = json.results.elements.filter(
+      element => element.name === 'Lines'
+    )[0]
     return this.constructor.render({
-      coverage: json.results.elements[0].ratio,
+      coverage: lineCoverage.ratio,
     })
   }
 

services/jenkins/jenkins-coverage.tester.js

@@ -1,5 +1,7 @@
 'use strict'
 
+const Joi = require('joi')
+const { isIntegerPercentage } = require('../test-validators')
 const ServiceTester = require('../service-tester')
 
 const t = new ServiceTester({
@@ -168,3 +170,9 @@ t.create('cobertura: invalid data response (missing line coverage)')
 t.create('cobertura: job not found')
   .get('/c/https/updates.jenkins-ci.org/job/does-not-exist.json')
   .expectJSON({ name: 'coverage', value: 'job or coverage not found' })
+
+t.create('cobertura: job found')
+  .get('/c/https/builds.apache.org/job/olingo-odata4-cobertura.json')
+  .expectJSONTypes(
+    Joi.object().keys({ name: 'coverage', value: isIntegerPercentage })
+  )