108 lines
2.8 KiB
Ruby
108 lines
2.8 KiB
Ruby
# frozen_string_literal: true
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require "test_helper"
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module Bootsnap
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module LoadPathCache
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class ChangeObserverTest < Minitest::Test
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include LoadPathCacheHelper
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def setup
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super
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@observer = Object.new
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@observer.instance_variable_set(:@mutex, Mutex.new)
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@arr = []
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ChangeObserver.register(@arr, @observer)
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end
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def test_observes_changes
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@observer.expects(:push_paths).with(@arr, "a")
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@arr << "a"
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@observer.expects(:push_paths).with(@arr, "b", "c")
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@arr.push("b", "c")
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@observer.expects(:push_paths).with(@arr, "d", "e")
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@arr.append("d", "e")
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@observer.expects(:unshift_paths).with(@arr, "f", "g")
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@arr.unshift("f", "g")
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@observer.expects(:push_paths).with(@arr, "h", "i")
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@arr.push("h", "i")
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@observer.expects(:unshift_paths).with(@arr, "j", "k")
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@arr.prepend("j", "k")
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end
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def test_unregister
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@observer.expects(:push_paths).never
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@observer.expects(:unshift_paths).never
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@observer.expects(:reinitialize).never
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ChangeObserver.unregister(@arr)
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@arr << "a"
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@arr.push("b", "c")
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@arr.append("d", "e")
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@arr.unshift("f", "g")
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@arr.push("h", "i")
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@arr.prepend("j", "k")
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@arr.delete(3)
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@arr.compact!
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@arr.map!(&:upcase)
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assert_equal %w(J K F G A B C D E H I), @arr
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end
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def test_reinitializes_on_aggressive_modifications
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@observer.expects(:push_paths).with(@arr, "a", "b", "c")
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@arr.push("a", "b", "c")
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@observer.expects(:reinitialize).times(4)
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@arr.delete(3)
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@arr.compact!
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@arr.map!(&:upcase)
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assert_equal("C", @arr.pop)
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assert_equal(%w(A B), @arr)
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end
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def test_register_frozen
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# just assert no crash
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ChangeObserver.register(@arr.dup.freeze, @observer)
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end
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def test_register_twice_observes_once
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ChangeObserver.register(@arr, @observer)
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@observer.expects(:push_paths).with(@arr, "a").once
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@arr << "a"
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assert_equal(%w(a), @arr)
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end
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def test_dup_returns_ractor_shareable_instance
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return unless defined?(Ractor)
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ChangeObserver.register(@arr, @observer)
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Ractor.make_shareable(@arr.dup.freeze)
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end
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def test_clone_returns_ractor_shareable_instance
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return unless defined?(Ractor)
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ChangeObserver.register(@arr, @observer)
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Ractor.make_shareable(@arr.clone.freeze)
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end
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def test_uniq_without_block
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@observer.expects(:reinitialize).never
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@arr.uniq!
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end
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def test_uniq_with_block
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@observer.expects(:reinitialize).once
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@arr.uniq! { |i| i }
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end
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end
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end
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end
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