Split up [codeclimate] tests (#3300)

* Split up [codeclimate] tests

* Fix copy-pasta

services/codeclimate/codeclimate-coverage.tester.js

@@ -0,0 +1,53 @@
+'use strict'
+
+const Joi = require('joi')
+const { ServiceTester } = require('../tester')
+const { isIntegerPercentage } = require('../test-validators')
+
+const t = (module.exports = new ServiceTester({
+  id: 'CodeClimateCoverage',
+  title: 'Code Climate',
+  pathPrefix: '/codeclimate',
+}))
+
+t.create('test coverage percentage')
+  .get('/c/jekyll/jekyll.json')
+  .expectBadge({
+    label: 'coverage',
+    message: isIntegerPercentage,
+  })
+
+t.create('test coverage percentage alternative coverage URL')
+  .get('/coverage/jekyll/jekyll.json')
+  .expectBadge({
+    label: 'coverage',
+    message: isIntegerPercentage,
+  })
+
+t.create('test coverage percentage alternative top-level URL')
+  .get('/jekyll/jekyll.json')
+  .expectBadge({
+    label: 'coverage',
+    message: isIntegerPercentage,
+  })
+
+t.create('test coverage letter')
+  .get('/c-letter/jekyll/jekyll.json')
+  .expectBadge({
+    label: 'coverage',
+    message: Joi.equal('A', 'B', 'C', 'D', 'E', 'F'),
+  })
+
+t.create('test coverage percentage for non-existent repo')
+  .get('/c/unknown/unknown.json')
+  .expectBadge({
+    label: 'coverage',
+    message: 'not found',
+  })
+
+t.create('test coverage percentage for repo without test reports')
+  .get('/c/angular/angular.js.json')
+  .expectBadge({
+    label: 'coverage',
+    message: 'unknown',
+  })