Class: RoadForest::Testing::BeEquivalentGraph

Inherits:
Object
  • Object
show all
Includes:
HelperMethods
Defined in:
lib/roadforest/test-support/matchers.rb

Defined Under Namespace

Classes: Info

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from HelperMethods

#detect_format, #normalize, #statements_from_graph

Constructor Details

#initialize(expected, info) ⇒ BeEquivalentGraph

Returns a new instance of BeEquivalentGraph.



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# File 'lib/roadforest/test-support/matchers.rb', line 56

def initialize(expected, info)
  @expected = normalize(expected)

  @info =
    if info.respond_to?(:about)
      info
    elsif info.is_a?(Hash)
      identifier = expected.is_a?(RDF::Graph) ? expected.context : info[:about]
      trace = info[:trace]
      trace = trace.join("\n") if trace.is_a?(Array)
      i = Info.new(identifier, "0000", trace, info[:compare])
      i.format = info[:format]
      i
    else
      Info.new(expected.is_a?(RDF::Graph) ? expected.context : info, "0000", info.to_s)
    end

  @info.format ||= :ttl
end

Instance Attribute Details

#expected ⇒ Object (readonly)

Returns the value of attribute expected.



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# File 'lib/roadforest/test-support/matchers.rb', line 75

def expected
  @expected
end

#info ⇒ Object (readonly)

Returns the value of attribute info.



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# File 'lib/roadforest/test-support/matchers.rb', line 75

def info
  @info
end

Instance Method Details

#description ⇒ Object 



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# File 'lib/roadforest/test-support/matchers.rb', line 92

def description
  "be equivalent to an expected graph" #graphs tend to be too long to use
end

#dump_graph(graph) ⇒ Object 



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# File 'lib/roadforest/test-support/matchers.rb', line 82

def dump_graph(graph)
  graph.dump(@info.format, :standard_prefixes => true)
rescue
  begin
    graph.dump(:nquads, :standard_prefixes => true)
  rescue
    graph.inspect
  end
end

#failure_message_for_should ⇒ Object 



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# File 'lib/roadforest/test-support/matchers.rb', line 96

def failure_message_for_should
  info = @info.respond_to?(:about) ? @info.about : @info.inspect
  if @expected.is_a?(RDF::Graph) && @actual.size != @expected.size
    "Graph entry count differs:\nexpected: #{@expected.size}\nactual:   #{@actual.size}"
  elsif @expected.is_a?(Array) && @actual.size != @expected.length
    "Graph entry count differs:\nexpected: #{@expected.length}\nactual:   #{@actual.size}"
  else
    "Graph differs"
  end +
    "\n#{info + "\n" unless info.to_s.empty?}" +
    (@info.inputDocument ? "Input file: #{@info.inputDocument}\n" : "") +
  (@info.outputDocument ? "Output file: #{@info.outputDocument}\n" : "") +
  "\nExpected:\n#{dump_graph(@expected)}" +
    "\nResults:\n#{dump_graph(@actual)}" +
    (@info.trace ? "\nDebug:\n#{@info.trace}" : "")
end

#matches?(actual) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/roadforest/test-support/matchers.rb', line 77

def matches?(actual)
  @actual = normalize(actual)
  @actual.isomorphic_with?(@expected)# rescue false
end