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module JSONMatchers
class SetJsonAttribute
def initialize(attributes)
@attributes = attributes
end
def format
@format ||= Puppet::Network::FormatHandler.format('pson')
end
def json(instance)
PSON.parse(instance.to_pson)
end
def attr_value(attrs, instance)
attrs = attrs.dup
hash = json(instance)['data']
while attrs.length > 0
name = attrs.shift
hash = hash[name]
end
hash
end
def to(value)
@value = value
self
end
def matches?(instance)
result = attr_value(@attributes, instance)
if @value
result == @value
else
! result.nil?
end
end
def failure_message_for_should(instance)
if @value
"expected #{instance.inspect} to set #{@attributes.inspect} to #{@value.inspect}; got #{attr_value(@attributes, instance).inspect}"
else
"expected #{instance.inspect} to set #{@attributes.inspect} but was nil"
end
end
def failure_message_for_should_not(instance)
if @value
"expected #{instance.inspect} not to set #{@attributes.inspect} to #{@value.inspect}"
else
"expected #{instance.inspect} not to set #{@attributes.inspect} to nil"
end
end
end
class SetJsonDocumentTypeTo
def initialize(type)
@type = type
end
def format
@format ||= Puppet::Network::FormatHandler.format('pson')
end
def matches?(instance)
json(instance)['document_type'] == @type
end
def json(instance)
PSON.parse(instance.to_pson)
end
def failure_message_for_should(instance)
"expected #{instance.inspect} to set document_type to #{@type.inspect}; got #{json(instance)['document_type'].inspect}"
end
def failure_message_for_should_not(instance)
"expected #{instance.inspect} not to set document_type to #{@type.inspect}"
end
end
class ReadJsonAttribute
def initialize(attribute)
@attribute = attribute
end
def format
@format ||= Puppet::Network::FormatHandler.format('pson')
end
def from(value)
@json = value
self
end
def as(as)
@value = as
self
end
def matches?(klass)
raise "Must specify json with 'from'" unless @json
@instance = format.intern(klass, @json)
if @value
@instance.send(@attribute) == @value
else
! @instance.send(@attribute).nil?
end
end
def failure_message_for_should(klass)
if @value
"expected #{klass} to read #{@attribute} from #{@json} as #{@value.inspect}; got #{@instance.send(@attribute).inspect}"
else
"expected #{klass} to read #{@attribute} from #{@json} but was nil"
end
end
def failure_message_for_should_not(klass)
if @value
"expected #{klass} not to set #{@attribute} to #{@value}"
else
"expected #{klass} not to set #{@attribute} to nil"
end
end
end
if !Puppet.features.microsoft_windows?
require 'json'
require 'json-schema'
class SchemaMatcher
JSON_META_SCHEMA = JSON.parse(File.read('api/schemas/json-meta-schema.json'))
def initialize(schema)
@schema = schema
end
def matches?(json)
JSON::Validator.validate!(JSON_META_SCHEMA, @schema)
JSON::Validator.validate!(@schema, json)
end
end
end
def validate_against(schema_file)
if Puppet.features.microsoft_windows?
pending("Schema checks cannot be done on windows because of json-schema problems")
else
schema = JSON.parse(File.read(schema_file))
SchemaMatcher.new(schema)
end
end
def set_json_attribute(*attributes)
SetJsonAttribute.new(attributes)
end
def set_json_document_type_to(type)
SetJsonDocumentTypeTo.new(type)
end
def read_json_attribute(attribute)
ReadJsonAttribute.new(attribute)
end
end
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