update getEndpointSuffix for eu-isoe-west-1 (#4657)

Author: kuhe

lib/region_config.js

@@ -90,7 +90,8 @@ function getEndpointSuffix(region) {
     '^cn\\-\\w+\\-\\d+$': 'amazonaws.com.cn',
     '^us\\-gov\\-\\w+\\-\\d+$': 'amazonaws.com',
     '^us\\-iso\\-\\w+\\-\\d+$': 'c2s.ic.gov',
-    '^us\\-isob\\-\\w+\\-\\d+$': 'sc2s.sgov.gov'
+    '^us\\-isob\\-\\w+\\-\\d+$': 'sc2s.sgov.gov',
+    '^eu\\-isoe\\-west\\-1$': 'cloud.adc-e.uk',
   };
   var defaultSuffix = 'amazonaws.com';
   var regexes = Object.keys(regionRegexes);

test/region_config.spec.js

@@ -1,6 +1,7 @@
 const helpers = require('./helpers');
 const AWS = helpers.AWS;
 const MockService = helpers.MockService;
+var getEndpointSuffix = require('../lib/region_config').getEndpointSuffix;
 
 describe('region_config.js', function() {
   it('sets endpoint configuration option for default regions', function() {
@@ -134,6 +135,10 @@ describe('region_config.js', function() {
     expect(service.isGlobalEndpoint).to.equal(false);
     expect(service.endpoint.host).to.equal('sts.us-gov-west-1.amazonaws.com');
   });
+
+  it('resolves the endpoint suffix for eu-isoe-west-1', function() {
+    expect(getEndpointSuffix('eu-isoe-west-1')).to.equal('cloud.adc-e.uk');
+  });
 });
 
 describe('region_config_data.json', function() {