Getting error information from XML Schema validation

rubyonrails-talk
1

Hi

I am using libxml2 to validate an XML file using a Schema. Like this:

schema = XML::Schema.from_string(schema_string) parser = XML::Parser.new parser.string = xml doc = parser.parse result = doc.validate_schema(schema)

This works and if the XML doc is invalid the error is written to standard output. Is there a way to capture this output? I need to relay this information to the client application. Grateful for any assistance.

Kindest regards

Erik

2

I found the solution in the libxml-ruby test cases. Viva TDD! If anyone else is interested this is a pattern for testing it:

    schema = XML::Schema.from_string(schema_string)     parser = XML::Parser.new     parser.string = xml     doc = parser.parse

    messages = Hash.new     assert(!doc.validate_schema(schema) do |message, error|       messages[message] = error     end)

    expected = {"Element 'customer_ip': This element is not expected. Expected is ( password ).\n" => true}     assert_equal expected, messages

Hope it helps.

Regards

Erik