52 lines
960 B
Ruby
52 lines
960 B
Ruby
# frozen_string_literal: false
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require 'test/unit'
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class TestTrace < Test::Unit::TestCase
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def test_trace
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$x = 1234
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$y = 0
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trace_var :$x, proc{$y = $x}
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$x = 40414
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assert_equal($x, $y)
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untrace_var :$x
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$x = 19660208
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assert_not_equal($x, $y)
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trace_var :$x, proc{$x *= 2}
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$x = 5
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assert_equal(10, $x)
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untrace_var :$x
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end
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def test_trace_proc_that_raises_exception
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$x = 1234
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trace_var :$x, proc { raise }
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assert_raise(RuntimeError) { $x = 42 }
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ensure
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untrace_var :$x
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end
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def test_trace_string
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$x = 1234
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trace_var :$x, "$y = :bar"
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$x = 42
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assert_equal(:bar, $y)
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ensure
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untrace_var :$x
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end
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def test_trace_break
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bug2722 = '[ruby-core:31783]'
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a = Object.new.extend(Enumerable)
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def a.each
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yield
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end
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assert(Thread.start {
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Thread.current.add_trace_func(proc{})
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a.any? {true}
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}.value, bug2722)
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end
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end
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