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fd81221a8e
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@11708 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
591 lines
8.5 KiB
Ruby
591 lines
8.5 KiB
Ruby
#
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# This test program is contributed by George Marrows
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# Re: [Yarv-devel] Some tests for test_jump.rb
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#
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require 'yarvtest/yarvtest'
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class TestFlow < YarvTestBase
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def ae_flow(src, for_value=true)
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# Tracks flow through the code
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# A test like
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# begin
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# ensure
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# end
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# gets transformed into
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# a = []
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# begin
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# begin; a << 1
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# ensure; a << 2
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# end; a << 3
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# rescue Exception
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# a << 99
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# end
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# a
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# before being run. This tracks control flow through the code.
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cnt = 0
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src = src.gsub(/(\n|$)/) { "; $a << #{cnt+=1}\n" }
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src = "$a = []; begin; #{src}; rescue Exception; $a << 99; end; $a"
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if false#||true
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STDERR.puts
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STDERR.puts '#----'
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STDERR.puts src
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STDERR.puts '#----'
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end
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ae(src)
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end
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def test_while_with_ensure
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ae %q{
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a = []
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i = 0
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begin
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while i < 1
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i+=1
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begin
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begin
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next
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ensure
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a << :ok
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end
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ensure
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a << :ok2
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end
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end
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ensure
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a << :last
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end
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}
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ae %q{
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a = []
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i = 0
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begin
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while i < 1
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i+=1
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begin
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begin
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break
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ensure
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a << :ok
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end
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ensure
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a << :ok2
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end
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end
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ensure
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a << :last
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end
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}
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ae %q{
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a = []
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i = 0
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begin
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while i < 1
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if i>0
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break
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end
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i+=1
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begin
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begin
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redo
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ensure
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a << :ok
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end
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ensure
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a << :ok2
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end
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end
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ensure
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a << :last
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end
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}
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end
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def test_ensure_normal_flow
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ae_flow %{
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begin
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ensure
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end }
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end
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def test_ensure_exception
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ae_flow %{
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begin
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raise StandardError
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ensure
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end
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}
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end
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def test_break_in_block_runs_ensure
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ae_flow %{
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[1,2].each do
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begin
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break
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ensure
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end
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end
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}
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end
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def test_next_in_block_runs_ensure
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ae_flow %{
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[1,2].each do
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begin
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next
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ensure
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end
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end
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}
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end
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def test_return_from_method_runs_ensure
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ae_flow %{
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o = "test"
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def o.test(a)
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return a
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ensure
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end
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o.test(123)
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}
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end
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def test_break_from_ifunc
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ae %q{
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["a"].inject("ng"){|x,y|
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break :ok
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}
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}
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ae %q{
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unless ''.respond_to? :lines
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class String
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def lines
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self
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end
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end
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end
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('a').lines.map{|e|
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break :ok
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}
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}
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ae_flow %q{
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["a"].inject("ng"){|x,y|
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break :ok
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}
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}
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ae_flow %q{
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('a'..'b').map{|e|
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break :ok
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}
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}
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end
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def test_break_ensure_interaction1
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# make sure that any 'break state' set up in the VM is c
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# the time of the ensure
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ae_flow %{
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[1,2].each{
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break
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}
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begin
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ensure
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end
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}
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end
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def test_break_ensure_interaction2
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# ditto, different arrangement
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ae_flow %{
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begin
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[1,2].each do
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break
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end
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ensure
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end
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}
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end
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def test_break_through_2_ensures
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ae_flow %{
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[1,2].each do
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begin
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begin
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break
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ensure
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end
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ensure
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end
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end
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}
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end
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def test_ensure_break_ensure
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# break through an ensure; run 2nd normally
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ae_flow %{
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begin
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[1,2].each do
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begin
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break
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ensure
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end
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end
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ensure
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end
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}
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end
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def test_exception_overrides_break
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ae_flow %{
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[1,2].each do
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begin
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break
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ensure
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raise StandardError
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end
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end
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}
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end
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def test_break_overrides_exception
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ae_flow %{
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[1,2].each do
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begin
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raise StandardError
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ensure
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break
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end
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end
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}
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ae_flow %{
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[1,2].each do
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begin
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raise StandardError
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rescue
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break
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end
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end
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}
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end
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def test_break_in_exception
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ae_flow %q{
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i=0
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while i<3
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i+=1
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begin
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ensure
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break
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end
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end
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}
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ae_flow %q{
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i=0
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while i<3
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i+=1
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begin
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raise
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ensure
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break
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end
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end
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}
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ae_flow %q{
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i=0
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while i<3
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i+=1
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begin
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raise
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rescue
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break
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end
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end
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}
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end
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def test_next_in_exception
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return
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ae_flow %q{
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i=0
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while i<3
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i+=1
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begin
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ensure
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next
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end
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end
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}
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ae_flow %q{
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i=0
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while i<3
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i+=1
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begin
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raise
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ensure
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next
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end
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end
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}
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ae_flow %q{
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i=0
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while i<3
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i+=1
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begin
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raise
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rescue
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next
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end
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end
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}
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end
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def test_complex_break
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ae_flow %q{
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i = 0
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while i<3
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i+=1
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j = 0
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while j<3
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j+=1
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begin
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raise
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rescue
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break
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end
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end
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end
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}
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ae_flow %q{
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i = 0
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while i<3
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i+=1
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j = 0
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while j<3
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j+=1
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1.times{
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begin
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raise
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rescue
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break
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end
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}
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end
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end
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}
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ae_flow %q{
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i = 0
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while i<3
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i+=1
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j = 0
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while j<3
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j+=1
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begin
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raise
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ensure
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break
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end
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end
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end
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}
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ae_flow %q{
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i = 0
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while i<3
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i+=1
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j = 0
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while j<3
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j+=1
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1.times{
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begin
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raise
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ensure
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break
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end
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}
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end
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end
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}
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ae_flow %q{
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while true
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begin
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break
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ensure
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break
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end
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end
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}
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ae_flow %q{
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while true
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begin
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break
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ensure
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raise
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end
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end
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}
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end
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def test_jump_from_class
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ae_flow %q{
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3.times{
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class C
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break
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end
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}
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}
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ae_flow %q{
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3.times{
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class A
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class B
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break
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end
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end
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}
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}
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ae_flow %q{
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3.times{
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class C
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next
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end
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}
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}
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ae_flow %q{
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3.times{
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class C
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class D
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next
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end
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end
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}
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}
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ae_flow %q{
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while true
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class C
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break
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end
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end
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}
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ae_flow %q{
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while true
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class C
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class D
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break
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end
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end
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end
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}
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ae_flow %q{
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i=0
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while i<3
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i+=1
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class C
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next 10
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end
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end
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}
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ae %q{
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1.times{
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while true
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class C
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begin
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break
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ensure
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break
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end
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end
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end
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}
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}
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end
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def test_flow_with_cont_sp
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ae %q{
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def m a, b
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a + b
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end
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m(1,
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while true
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break 2
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end
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)
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}
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ae %q{
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def m a, b
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a + b
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end
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m(1,
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(i=0; while i<2
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i+=1
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class C
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next 2
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end
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end; 3)
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)
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}
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ae %q{
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def m a, b
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a+b
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end
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m(1, 1.times{break 3}) +
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m(10, (1.times{next 3}; 20))
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}
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end
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def test_return_in_deep_stack
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ae_flow %q{
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def m1 *args
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end
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def m2
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m1(:a, :b, (return 1; :c))
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end
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m2
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}
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end
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def test_return_in_ensure
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ae_flow %q{
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def m()
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begin
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2
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ensure
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return 3
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end
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end
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m
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}
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ae_flow %q{
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def m2
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end
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def m()
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m2(begin
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2
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ensure
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return 3
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end)
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4
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end
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m()
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}
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ae_flow %q{
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def m
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1
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1.times{
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2
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begin
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3
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return
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4
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ensure
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5
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end
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6
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}
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7
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end
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m()
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}
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end
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end
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