Module: Minitest::KineticCafeErrorAssertions

Defined in:
lib/kinetic_cafe/error/minitest.rb

Overview

Add assertions to Minitest for testing KineticCafe::Error objects.

Instance Method Summary collapse

Instance Method Details

#assert_kc_error(expected, actual, params = {}, msg = nil) ⇒ Object

Assert that the actual exception received is the expected descendant of KineticCafe::Error and that it has been constructed with the same params provided.

If a cause is not provided, any cause on the received error will be ignored.



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# File 'lib/kinetic_cafe/error/minitest.rb', line 10

def assert_kc_error expected, actual, params = {}, msg = nil
  msg, params = params, {} if msg.nil? && params.kind_of?(String)

  assert_kind_of KineticCafe::ErrorModule, actual,
    msg || "Expected #{actual} to be #{expected}, but it was not."

  assert_kind_of expected, actual,
    msg || "Expected #{actual} to be #{expected}, but it was not."

  unless params.key?(:cause)
    actual = actual.dup
    actual.instance_variable_set(:@cause, nil)
    actual.instance_variable_set(:@initialized_cause, true)
    actual.instance_variable_get(:@i18n_params).tap do |params|
      params.delete(:cause)
    end
  end

  expected = expected.new(params)
  assert_equal expected, actual,
    msg || "Expected #{actual} to be #{expected}, but it was not."
end

#assert_kc_error_json(expected, actual, params = {}, msg = nil) ⇒ Object

Assert that the actual string received is the expected descendant of KineticCafe::Error and that it has been constructed with the same params provided.

This differs from assert_kc_error in that comparison of the parsed JSON output is compared, not KineticCafe::Error objects. The JSON for the provided KineticCafe::Error object is generated through KineticCafe::Error#error_json.

If a cause is not provided, any cause on the received error will be ignored.



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# File 'lib/kinetic_cafe/error/minitest.rb', line 44

def assert_kc_error_json expected, actual, params = {}, msg = nil
  msg, params = params, {} if msg.nil? && params.kind_of?(String)

  msg ||= "Expected #{actual} to be JSON for #{expected}, but it was not."
  actual = JSON.parse(actual)

  unless params.key?(:cause)
    actual['error'].tap do |error|
      error.delete('cause')
      if error['i18n_params']
        error['i18n_params'].delete('cause')
        error.delete('i18n_params') if error['i18n_params'].empty?
      end
    end
    actual
  end

  expected = JSON.parse(expected.new(params).error_result.to_json)

  assert_equal expected, actual, msg
end

#assert_response_kc_error(expected, params = {}, msg = nil) ⇒ Object

Assert that a reponse body (@response.body, useful from ActionController::TestCase) is JSON for the expected error. This is a convenience wrapper around #assert_kc_error_json or #assert_kc_error_html, depending on whether or not the response is HTML or not.



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# File 'lib/kinetic_cafe/error/minitest.rb', line 83

def assert_response_kc_error expected, params = {}, msg = nil
  msg, params = params, {} if msg.nil? && params.kind_of?(String)
  msg ||= "Expected response to be #{expected}, but was not."

  if @request.format.html?
    assert_response_kc_error_html expected, msg
  else
    assert_kc_error_json expected, @response.body, params, msg
  end
end

#assert_response_kc_error_html(expected, msg = nil) ⇒ Object

Assert that a reponse body (@response.body, useful from ActionController::TestCase) is HTML for the expected error.



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# File 'lib/kinetic_cafe/error/minitest.rb', line 68

def assert_response_kc_error_html expected, msg = nil
  msg ||= "Expected #{actual} to be HTML for #{expected}, but it was not."

  assert_template 'kinetic_cafe_error/page', msg
  assert_template 'kinetic_cafe_error/_table', msg

  assert_match(/#{expected.i18n_key}/, @response.body, msg)
  assert_response expected.new.status, msg
end