Runtime assertions for Ruby
literal.fun
ruby
Create allocations_test.rb
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test/allocations_test.rb
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test/allocations_test.rb
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#!/usr/bin/env ruby
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# frozen_string_literal: true
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# NOTE: This is not a quickdraw test becuase it needs to be run in a single thread.
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require "literal"
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include Literal::Types
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def count_allocations
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x = GC.stat(:total_allocated_objects)
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yield
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GC.stat(:total_allocated_objects) - x
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end
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def count_warm_allocations(&)
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count_allocations(&)
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count_allocations(&)
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end
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def no_allocations(type, thing)
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count_warm_allocations do
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type === thing
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end => 0
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end
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no_allocations(_Any, "anything")
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no_allocations(_Any, false)
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no_allocations(_Array(String), [])
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no_allocations(_Array(String), ["a", "b"])
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no_allocations(_Array(String), ["a", "b", 1])
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no_allocations(_Boolean, true)
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no_allocations(_Boolean, false)
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no_allocations(_Boolean, nil)
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no_allocations(_Boolean, 1)