Class: CouchPotato::RSpec::MapToMatcher

Inherits:
Object
  • Object
show all
Includes:
RunJS
Defined in:
lib/couch_potato/rspec/matchers/map_to_matcher.rb

Instance Method Summary (collapse)

Constructor Details

- (MapToMatcher) initialize(expected_ruby, input_ruby)

Returns a new instance of MapToMatcher



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# File 'lib/couch_potato/rspec/matchers/map_to_matcher.rb', line 19

def initialize(expected_ruby, input_ruby)
  @expected_ruby = expected_ruby
  @input_ruby = input_ruby
end

Instance Method Details

- (Object) failure_message_for_should



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# File 'lib/couch_potato/rspec/matchers/map_to_matcher.rb', line 52

def failure_message_for_should
  "Expected to map to #{@expected_ruby.inspect} but got #{@actual_ruby.inspect}."
end

- (Object) failure_message_for_should_not



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# File 'lib/couch_potato/rspec/matchers/map_to_matcher.rb', line 56

def failure_message_for_should_not
  "Expected not to map to #{@actual_ruby.inspect} but did."
end

- (Boolean) matches?(view_spec)

Returns:

  • (Boolean)


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# File 'lib/couch_potato/rspec/matchers/map_to_matcher.rb', line 24

def matches?(view_spec)
  js = <<-JS
    var doc = #{@input_ruby.to_json};
    var map = #{view_spec.map_function};
    var lib = #{view_spec.respond_to?(:lib) && view_spec.lib.to_json};
    var result = [];
    var require = function(modulePath) {
      var module = {exports: {}};
      var exports = module.exports;
      var pathArray = modulePath.split("/").slice(2);
      var result = lib;
      for (var i in pathArray) {
        result = result[pathArray[i]];
      }
      eval(result);
      return module.exports;
    }

    var emit = function(key, value) {
      result.push([key, value]);
    };
    map(doc);
    JSON.stringify(result);
  JS
  @actual_ruby = JSON.parse(run_js(js))
  @expected_ruby == @actual_ruby
end