Fix some parallel test issues around admin accounts.

- Ensure we don't delete all the admin accounts for tests that run in
  parallel, since that may impact other tests.
- Ensure at least 1 admin account exists prior to some admin routing
  tests, so the admin doesn't redirect to the screen allowing for admin
  creation.

test/apis/v1/admins/test_create.rb

@@ -8,23 +8,22 @@ class Test::Apis::V1::Admins::TestCreate < Minitest::Test
   def setup
     super
     setup_server
-    Admin.delete_all
   end
 
   def test_downcases_username
-    attributes = FactoryGirl.build(:admin, :username => "[email protected]").serializable_hash
+    attributes = FactoryGirl.build(:admin, :username => "HELLO-#{unique_test_id}@example.com").serializable_hash
     response = Typhoeus.post("https://127.0.0.1:9081/api-umbrella/v1/admins.json", http_options.deep_merge(admin_token).deep_merge({
       :headers => { "Content-Type" => "application/x-www-form-urlencoded" },
       :body => { :admin => attributes },
     }))
     assert_response_code(201, response)
 
     data = MultiJson.load(response.body)
-    assert_equal("[email protected]", attributes["username"])
-    assert_equal("[email protected]", data["admin"]["username"])
+    assert_equal("HELLO-#{unique_test_id}@example.com", attributes["username"])
+    assert_equal("hello-#{unique_test_id.downcase}@example.com", data["admin"]["username"])
 
     admin = Admin.find(data["admin"]["id"])
-    assert_equal("[email protected]", admin.username)
+    assert_equal("hello-#{unique_test_id.downcase}@example.com", admin.username)
   end
 
   def test_required_validations

test/proxy/routing/test_admin.rb

@@ -7,6 +7,7 @@ class Test::Proxy::Routing::TestAdmin < Minitest::Test
   def setup
     super
     setup_server
+    FactoryGirl.create(:admin)
   end
 
   def test_https_redirect