(#4720) - http tests work offline

tests/integration/test.http.js

diff --git a/tests/integration/test.http.js b/tests/integration/test.http.js
index 409fccb..39245ae 100644
--- a/tests/integration/test.http.js
+++ b/tests/integration/test.http.js
@@ -189,15 +189,19 @@
 
   it('4358 db.info rejects when server is down', function() {
     var db = new PouchDB('http://example.com/foo');
-    return db.info().catch(function(err) {
-      err.name.should.equal('unknown_error');
+    return db.info().then(function () {
+      throw new Error('expected an error');
+    }).catch(function(err) {
+      should.exist(err);
     });
   });
 
   it('4358 db.destroy rejects when server is down', function() {
     var db = new PouchDB('http://example.com/foo');
-    return db.destroy().catch(function(err) {
-      err.name.should.equal('unknown_error');
+    return db.destroy().then(function () {
+      throw new Error('expected an error');
+    }).catch(function(err) {
+      should.exist(err);
     });
   });