Improve code quality and write tests

node_modules/codecov/test/services/shippable.test.js

@@ -0,0 +1,27 @@
+var shippable = require('../../lib/services/shippable')
+
+describe('Shippable CI Provider', function() {
+  it('can detect shippable', function() {
+    process.env.SHIPPABLE = 'true'
+    expect(shippable.detect()).toBe(true)
+  })
+  it('can get shippable env info get_commit_status', function() {
+    process.env.SHIPPABLE = 'true'
+    process.env.BUILD_URL = 'http://...'
+    process.env.COMMIT = '5678'
+    process.env.BUILD_NUMBER = '91011'
+    process.env.BUILD_URL = 'http://...'
+    process.env.BRANCH = 'master'
+    process.env.PULL_REQUEST = '2'
+    process.env.REPO_NAME = 'owner/repo'
+    expect(shippable.configuration()).toEqual({
+      service: 'shippable',
+      commit: '5678',
+      build: '91011',
+      build_url: 'http://...',
+      branch: 'master',
+      pr: '2',
+      slug: 'owner/repo',
+    })
+  })
+})