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rails--rails/actionview/test/actionpack/abstract/helper_test.rb

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# frozen_string_literal: true
require "abstract_unit"
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ActionController::Base.helpers_path = File.expand_path("../../fixtures/helpers", __dir__)
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module AbstractController
module Testing
class ControllerWithHelpers < AbstractController::Base
include AbstractController::Helpers
include AbstractController::Rendering
include ActionView::Rendering
def with_module
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render inline: "Module <%= included_method %>"
end
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end
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module HelperyTest
def included_method
"Included"
end
end
class AbstractHelpers < ControllerWithHelpers
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helper(HelperyTest) do
def helpery_test
"World"
end
end
helper :abc
def with_block
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render inline: "Hello <%= helpery_test %>"
end
def with_symbol
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render inline: "I respond to bare_a: <%= respond_to?(:bare_a) %>"
end
end
class ::HelperyTestController < AbstractHelpers
clear_helpers
end
class AbstractHelpersBlock < ControllerWithHelpers
helper do
include AbstractController::Testing::HelperyTest
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end
end
class AbstractInvalidHelpers < AbstractHelpers
include ActionController::Helpers
path = File.expand_path("../../fixtures/helpers_missing", __dir__)
$:.unshift(path)
self.helpers_path = path
end
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class TestHelpers < ActiveSupport::TestCase
def setup
@controller = AbstractHelpers.new
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end
def test_helpers_with_block
@controller.process(:with_block)
assert_equal "Hello World", @controller.response_body
end
def test_helpers_with_module
@controller.process(:with_module)
assert_equal "Module Included", @controller.response_body
end
def test_helpers_with_symbol
@controller.process(:with_symbol)
assert_equal "I respond to bare_a: true", @controller.response_body
end
def test_declare_missing_helper
e = assert_raise AbstractController::Helpers::MissingHelperError do
AbstractHelpers.helper :missing
end
assert_equal "helpers/missing_helper.rb", e.path
end
def test_helpers_with_module_through_block
@controller = AbstractHelpersBlock.new
@controller.process(:with_module)
assert_equal "Module Included", @controller.response_body
end
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end
class ClearHelpersTest < ActiveSupport::TestCase
def setup
@controller = HelperyTestController.new
end
def test_clears_up_previous_helpers
@controller.process(:with_symbol)
assert_equal "I respond to bare_a: false", @controller.response_body
end
def test_includes_controller_default_helper
@controller.process(:with_block)
assert_equal "Hello Default", @controller.response_body
end
end
class InvalidHelpersTest < ActiveSupport::TestCase
def test_controller_raise_error_about_real_require_problem
e = assert_raise(LoadError) { AbstractInvalidHelpers.helper(:invalid_require) }
assert_equal "No such file to load -- very_invalid_file_name.rb", e.message
end
def test_controller_raise_error_about_missing_helper
e = assert_raise(AbstractController::Helpers::MissingHelperError) { AbstractInvalidHelpers.helper(:missing) }
assert_equal "Missing helper file helpers/missing_helper.rb", e.message
end
def test_missing_helper_error_has_the_right_path
e = assert_raise(AbstractController::Helpers::MissingHelperError) { AbstractInvalidHelpers.helper(:missing) }
assert_equal "helpers/missing_helper.rb", e.path
end
end
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end
end