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require 'pp'
require 'delegate'
require 'test/unit'
module PPTestModule
class PPTest < Test::Unit::TestCase
def test_list0123_12
assert_equal("[0, 1, 2, 3]\n", PP.pp([0,1,2,3], '', 12))
end
def test_list0123_11
assert_equal("[0,\n 1,\n 2,\n 3]\n", PP.pp([0,1,2,3], '', 11))
end
OverriddenStruct = Struct.new("OverriddenStruct", :members, :class)
def test_struct_override_members # [ruby-core:7865]
a = OverriddenStruct.new(1,2)
assert_equal("#<struct Struct::OverriddenStruct members=1, class=2>\n", PP.pp(a, ''))
end
def test_redefined_method
o = ""
def o.method
end
assert_equal(%(""\n), PP.pp(o, ""))
end
end
class HasInspect
def initialize(a)
@a = a
end
def inspect
return "<inspect:#{@a.inspect}>"
end
end
class HasPrettyPrint
def initialize(a)
@a = a
end
def pretty_print(q)
q.text "<pretty_print:"
q.pp @a
q.text ">"
end
end
class HasBoth
def initialize(a)
@a = a
end
def inspect
return "<inspect:#{@a.inspect}>"
end
def pretty_print(q)
q.text "<pretty_print:"
q.pp @a
q.text ">"
end
end
class PrettyPrintInspect < HasPrettyPrint
alias inspect pretty_print_inspect
end
class PrettyPrintInspectWithoutPrettyPrint
alias inspect pretty_print_inspect
end
class PPInspectTest < Test::Unit::TestCase
def test_hasinspect
a = HasInspect.new(1)
assert_equal("<inspect:1>\n", PP.pp(a, ''))
end
def test_hasprettyprint
a = HasPrettyPrint.new(1)
assert_equal("<pretty_print:1>\n", PP.pp(a, ''))
end
def test_hasboth
a = HasBoth.new(1)
assert_equal("<pretty_print:1>\n", PP.pp(a, ''))
end
def test_pretty_print_inspect
a = PrettyPrintInspect.new(1)
assert_equal("<pretty_print:1>", a.inspect)
a = PrettyPrintInspectWithoutPrettyPrint.new
assert_raise(RuntimeError) { a.inspect }
end
def test_proc
a = proc {1}
assert_equal("#{a.inspect}\n", PP.pp(a, ''))
end
def test_to_s_with_iv
a = Object.new
def a.to_s() "aaa" end
a.instance_eval { @a = nil }
result = PP.pp(a, '')
assert_equal("#{a.inspect}\n", result)
a = 1.0
a.instance_eval { @a = nil }
result = PP.pp(a, '')
assert_equal("#{a.inspect}\n", result)
end
def test_to_s_without_iv
a = Object.new
def a.to_s() "aaa" end
result = PP.pp(a, '')
assert_equal("#{a.inspect}\n", result)
end
end
class PPCycleTest < Test::Unit::TestCase
def test_array
a = []
a << a
assert_equal("[[...]]\n", PP.pp(a, ''))
assert_equal("#{a.inspect}\n", PP.pp(a, ''))
end
def test_hash
a = {}
a[0] = a
assert_equal("{0=>{...}}\n", PP.pp(a, ''))
assert_equal("#{a.inspect}\n", PP.pp(a, ''))
end
S = Struct.new("S", :a, :b)
def test_struct
a = S.new(1,2)
a.b = a
assert_equal("#<struct Struct::S a=1, b=#<struct Struct::S:...>>\n", PP.pp(a, ''))
assert_equal("#{a.inspect}\n", PP.pp(a, ''))
end
def test_object
a = Object.new
a.instance_eval {@a = a}
assert_equal(a.inspect + "\n", PP.pp(a, ''))
end
def test_anonymous
a = Class.new.new
assert_equal(a.inspect + "\n", PP.pp(a, ''))
end
def test_withinspect
a = []
a << HasInspect.new(a)
assert_equal("[<inspect:[...]>]\n", PP.pp(a, ''))
assert_equal("#{a.inspect}\n", PP.pp(a, ''))
end
def test_share_nil
begin
PP.sharing_detection = true
a = [nil, nil]
assert_equal("[nil, nil]\n", PP.pp(a, ''))
ensure
PP.sharing_detection = false
end
end
end
class PPSingleLineTest < Test::Unit::TestCase
def test_hash
assert_equal("{1=>1}", PP.singleline_pp({ 1 => 1}, '')) # [ruby-core:02699]
assert_equal("[1#{', 1'*99}]", PP.singleline_pp([1]*100, ''))
end
end
class PPDelegateTest < Test::Unit::TestCase
class A < DelegateClass(Array); end
def test_delegate
assert_equal("[]\n", A.new([]).pretty_inspect, "[ruby-core:25804]")
end
end
end
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