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# frozen_string_literal: true
require "abstract_unit"
class LazyLoadHooksTest < ActiveSupport::TestCase
def test_basic_hook
i = 0
ActiveSupport.on_load(:basic_hook) { i += 1 }
ActiveSupport.run_load_hooks(:basic_hook)
assert_equal 1, i
end
def test_basic_hook_with_two_registrations
i = 0
ActiveSupport.on_load(:basic_hook_with_two) { i += incr }
assert_equal 0, i
ActiveSupport.run_load_hooks(:basic_hook_with_two, FakeContext.new(2))
assert_equal 2, i
ActiveSupport.run_load_hooks(:basic_hook_with_two, FakeContext.new(5))
assert_equal 7, i
end
def test_basic_hook_with_two_registrations_only_once
i = 0
block = proc { i += incr }
ActiveSupport.on_load(:basic_hook_with_two_once, run_once: true, &block)
ActiveSupport.on_load(:basic_hook_with_two_once) do
i += incr
end
ActiveSupport.on_load(:different_hook, run_once: true, &block)
ActiveSupport.run_load_hooks(:different_hook, FakeContext.new(2))
assert_equal 2, i
ActiveSupport.run_load_hooks(:basic_hook_with_two_once, FakeContext.new(2))
assert_equal 6, i
ActiveSupport.run_load_hooks(:basic_hook_with_two_once, FakeContext.new(5))
assert_equal 11, i
end
def test_hook_registered_after_run
i = 0
ActiveSupport.run_load_hooks(:registered_after)
assert_equal 0, i
ActiveSupport.on_load(:registered_after) { i += 1 }
assert_equal 1, i
end
def test_hook_registered_after_run_with_two_registrations
i = 0
ActiveSupport.run_load_hooks(:registered_after_with_two, FakeContext.new(2))
ActiveSupport.run_load_hooks(:registered_after_with_two, FakeContext.new(5))
assert_equal 0, i
ActiveSupport.on_load(:registered_after_with_two) { i += incr }
assert_equal 7, i
end
def test_hook_registered_after_run_with_two_registrations_only_once
i = 0
ActiveSupport.run_load_hooks(:registered_after_with_two_once, FakeContext.new(2))
ActiveSupport.run_load_hooks(:registered_after_with_two_once, FakeContext.new(5))
assert_equal 0, i
ActiveSupport.on_load(:registered_after_with_two_once, run_once: true) { i += incr }
assert_equal 2, i
end
def test_hook_registered_interleaved_run_with_two_registrations
i = 0
ActiveSupport.run_load_hooks(:registered_interleaved_with_two, FakeContext.new(2))
assert_equal 0, i
ActiveSupport.on_load(:registered_interleaved_with_two) { i += incr }
assert_equal 2, i
ActiveSupport.run_load_hooks(:registered_interleaved_with_two, FakeContext.new(5))
assert_equal 7, i
end
def test_hook_registered_interleaved_run_with_two_registrations_once
i = 0
ActiveSupport
.run_load_hooks(:registered_interleaved_with_two_once, FakeContext.new(2))
assert_equal 0, i
ActiveSupport.on_load(:registered_interleaved_with_two_once, run_once: true) do
i += incr
end
assert_equal 2, i
ActiveSupport
.run_load_hooks(:registered_interleaved_with_two_once, FakeContext.new(5))
assert_equal 2, i
end
def test_hook_receives_a_context
i = 0
ActiveSupport.on_load(:contextual) { i += incr }
assert_equal 0, i
ActiveSupport.run_load_hooks(:contextual, FakeContext.new(2))
assert_equal 2, i
end
def test_hook_receives_a_context_afterward
i = 0
ActiveSupport.run_load_hooks(:contextual_after, FakeContext.new(2))
assert_equal 0, i
ActiveSupport.on_load(:contextual_after) { i += incr }
assert_equal 2, i
end
def test_hook_with_yield_true
i = 0
ActiveSupport.on_load(:contextual_yield, yield: true) do |obj|
i += obj.incr + incr_amt
end
assert_equal 0, i
ActiveSupport.run_load_hooks(:contextual_yield, FakeContext.new(2))
assert_equal 7, i
end
def test_hook_with_yield_true_afterward
i = 0
ActiveSupport.run_load_hooks(:contextual_yield_after, FakeContext.new(2))
assert_equal 0, i
ActiveSupport.on_load(:contextual_yield_after, yield: true) do |obj|
i += obj.incr + incr_amt
end
assert_equal 7, i
end
private
def incr_amt
5
end
class FakeContext
attr_reader :incr
def initialize(incr)
@incr = incr
end
end
end
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