Contents

require File.expand_path('../../spec_helper', __FILE__)

describe CognitiveDistance::Tracer do
  before do
    @traced_obj = CognitiveDistance::Test::TracesInternal.new
    @tracer = CognitiveDistance::Tracer.new(@traced_obj)
  end

  def to_methods arr
    arr.map { |(node, children)|
      [node.trace_method, to_methods(children)]
    }
  end

  it "returns a CallTree after tracing" do
    call_tree = @tracer.trace(:method1)
    call_tree.is_a?(CognitiveDistance::Structures::CallTree).must_equal true
    call_tree.to_a.size.must_equal 1
  end

  it "traces out a CallTree" do
    call_tree = @tracer.trace(:method1)
    to_methods(call_tree.to_a).must_equal [
      [:method1, [
        [:method2, [
          [:method4, []]
        ]],
        [:method3, []]
      ]]
    ]
  end

  it "traces out properly when an exception is raised" do
    call_tree = @tracer.trace(:test_raising)
    to_methods(call_tree.to_a).must_equal [
      [:test_raising, [
        [:prepare_the_raising, [
          [ :do_the_raising, [] ]
        ]],
        [:method3, []]
      ]]
    ]
  end

  it "traces out properly when throwing and catching" do
    call_tree = @tracer.trace(:test_throwing)
    to_methods(call_tree.to_a).must_equal [
      [:test_throwing, [
          [:prepare_the_throwing, [
            [ :do_the_throwing, [] ]
          ]],
          [:method4, []]
      ]]
    ]
  end
end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
cognitive_distance-0.0.1.pre	spec/cognitive_distance/tracer_spec.rb