168 lines
3.8 KiB
Ruby
168 lines
3.8 KiB
Ruby
# frozen_string_literal: true
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require "abstract_unit"
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class ReloaderTest < ActiveSupport::TestCase
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teardown do
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ActiveSupport::Reloader.reset_callbacks :prepare
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ActiveSupport::Reloader.reset_callbacks :complete
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end
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class MyBody < Array
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def initialize(&block)
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@on_close = block
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end
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def foo
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"foo"
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end
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def bar
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"bar"
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end
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def close
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@on_close.call if @on_close
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end
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end
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def test_prepare_callbacks
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a = b = c = nil
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reloader.to_prepare { |*args| a = b = c = 1 }
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reloader.to_prepare { |*args| b = c = 2 }
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reloader.to_prepare { |*args| c = 3 }
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# Ensure to_prepare callbacks are not run when defined
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assert_nil a || b || c
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# Run callbacks
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call_and_return_body
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assert_equal 1, a
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assert_equal 2, b
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assert_equal 3, c
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end
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def test_returned_body_object_always_responds_to_close
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body = call_and_return_body
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assert_respond_to body, :close
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end
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def test_returned_body_object_always_responds_to_close_even_if_called_twice
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body = call_and_return_body
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assert_respond_to body, :close
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body.close
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body = call_and_return_body
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assert_respond_to body, :close
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body.close
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end
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def test_condition_specifies_when_to_reload
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i, j = 0, 0, 0, 0
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reloader = reloader(lambda { i < 3 })
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reloader.to_prepare { |*args| i += 1 }
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reloader.to_complete { |*args| j += 1 }
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app = middleware(lambda { |env| [200, {}, []] }, reloader)
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5.times do
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resp = app.call({})
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resp[2].close
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end
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assert_equal 3, i
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assert_equal 3, j
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end
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def test_returned_body_object_behaves_like_underlying_object
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body = call_and_return_body do
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b = MyBody.new
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b << "hello"
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b << "world"
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[200, { "Content-Type" => "text/html" }, b]
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end
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assert_equal 2, body.size
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assert_equal "hello", body[0]
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assert_equal "world", body[1]
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assert_equal "foo", body.foo
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assert_equal "bar", body.bar
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end
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def test_it_calls_close_on_underlying_object_when_close_is_called_on_body
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close_called = false
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body = call_and_return_body do
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b = MyBody.new do
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close_called = true
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end
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[200, { "Content-Type" => "text/html" }, b]
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end
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body.close
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assert close_called
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end
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def test_returned_body_object_responds_to_all_methods_supported_by_underlying_object
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body = call_and_return_body do
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[200, { "Content-Type" => "text/html" }, MyBody.new]
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end
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assert_respond_to body, :size
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assert_respond_to body, :each
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assert_respond_to body, :foo
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assert_respond_to body, :bar
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end
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def test_complete_callbacks_are_called_when_body_is_closed
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completed = false
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reloader.to_complete { completed = true }
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body = call_and_return_body
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assert_not completed
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body.close
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assert completed
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end
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def test_prepare_callbacks_arent_called_when_body_is_closed
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prepared = false
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reloader.to_prepare { prepared = true }
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body = call_and_return_body
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prepared = false
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body.close
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assert_not prepared
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end
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def test_complete_callbacks_are_called_on_exceptions
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completed = false
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reloader.to_complete { completed = true }
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begin
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call_and_return_body do
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raise "error"
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end
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rescue
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end
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assert completed
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end
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private
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def call_and_return_body(&block)
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app = middleware(block || proc { [200, {}, "response"] })
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_, _, body = app.call("rack.input" => StringIO.new(""))
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body
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end
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def middleware(inner_app, reloader = reloader())
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ActionDispatch::Reloader.new(inner_app, reloader)
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end
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def reloader(check = lambda { true })
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@reloader ||= begin
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reloader = Class.new(ActiveSupport::Reloader)
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reloader.check = check
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reloader
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end
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end
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end
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