fix and add spec

spec/storage/fog_helper.rb

@@ -542,6 +542,7 @@ def check_file
 
                 expect(@fog_file.public_url).to include("https://#{expected_host}/foo.bar")
               end
+            end
 
             {
               nil            => 's3-fips.amazonaws.com',
@@ -550,7 +551,7 @@ def check_file
               'eu-central-1' => 's3-fips.eu-central-1.amazonaws.com', # Carrierwave doesn't know which regions are FIPS-capable.
               'us-gov-west-1' => 's3-fips.us-gov-west-1.amazonaws.com'
             }.each do |region, expected_host|
-              it "should use a #{expected_host} hostname when using path style and FIPS mode for access #{region} region" do
+              it "should use a #{expected_host} hostname when using path style and FIPS endpoint for access #{region} region" do
                 allow(@uploader).to receive(:fog_use_ssl_for_aws).and_return(true)
                 allow(@uploader).to receive(:fog_directory).and_return('foo.bar')
                 allow(@uploader).to_receive(:fog_aws_fips).and_return(true)
@@ -577,6 +578,22 @@ def check_file
                 expect(@fog_file.public_url).to include("https://#{expected_host}/")
               end
             end
+
+            {
+              nil            => 'foobar.s3-fips.amazonaws.com',
+              'us-east-1'    => 'foobar.s3-fips.amazonaws.com',
+              'us-east-2'    => 'foobar.s3-fips.us-east-2.amazonaws.com',
+              'eu-central-1' => 'foobar.s3-fips.eu-central-1.amazonaws.com' # Carrierwave doesn't know which regions are FIPS-capable
+            }.each do |region, expected_host|
+              it "should use a #{expected_host} hostname when using path style and FIPS endpoint for access #{region} region" do
+                allow(@uploader).to receive(:fog_use_ssl_for_aws).and_return(true)
+                allow(@uploader).to receive(:fog_directory).and_return('foobar')
+                allow(@uploader).to_receive(:fog_aws_fips).and_return(true)
+                allow(@uploader).to receive(:fog_credentials).and_return(@uploader.fog_credentials.merge(region: region))
+
+                expect(@fog_file.public_url).to include("https://#{expected_host}/")
+              end
+            end
           end
 
           it "should use https as a default protocol" do