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minips_test.rb
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minips_test.rb
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require "test/unit"
require_relative "minips"
class TestParser < Test::Unit::TestCase
def setup
end
def test_parse_int
src = "123 456"
tk1, tk2 = MiniPS::Parser.parse_string(src)
assert_equal(:numeric, tk1[:type])
assert_equal(123, tk1[:val])
assert_equal(:numeric, tk2[:type])
assert_equal(456, tk2[:val])
end
def test_parse_float
src = "123.45 2.3e-4"
tk1, tk2 = MiniPS::Parser.parse_string(src)
assert_equal(:numeric, tk1[:type])
assert_equal(123.45, tk1[:val])
assert_equal(:numeric, tk2[:type])
assert_equal(2.3e-4, tk2[:val])
end
def test_parse_nbased_int
src = "2#1111 16#ffff 36#zz"
tk1, tk2, tk3 = MiniPS::Parser.parse_string(src)
assert_equal(:numeric, tk1[:type])
assert_equal(2 ** 4 - 1, tk1[:val])
assert_equal(:numeric, tk2[:type])
assert_equal(16 ** 4 - 1, tk2[:val])
assert_equal(:numeric, tk3[:type])
assert_equal(36 ** 2 - 1, tk3[:val])
end
def test_parse_string
src = <<__STRING_TEST__
(asdf)
(qw\
er)
__STRING_TEST__
tk1, tk2 = MiniPS::Parser.parse_string(src)
assert_equal(:string, tk1[:type])
assert_equal("asdf", tk1[:val])
assert_equal(:string, tk2[:type])
assert_equal("qwer", tk2[:val])
end
def test_parse_executable_name
src = "asdf qwer"
tk1, tk2 = MiniPS::Parser.parse_string(src)
assert_equal(:executable_name, tk1[:type])
assert_equal("asdf", tk1[:val])
assert_equal(:executable_name, tk2[:type])
assert_equal("qwer", tk2[:val])
end
def test_parse_literal_name
src = "/asdf /qwer"
tk1, tk2 = MiniPS::Parser.parse_string(src)
assert_equal(:literal_name, tk1[:type])
assert_equal("asdf", tk1[:val])
assert_equal(:literal_name, tk2[:type])
assert_equal("qwer", tk2[:val])
end
def test_parse_executable_array
src = "{dup mul 2 mul}"
a = MiniPS::Parser.parse_string(src)[0]
assert_equal(:executable_array, a[:type])
assert_equal(["dup", "mul", 2, "mul"], a[:val].map{|v| v[:val]})
end
def test_parse_array
src = "[0 1 2]"
parsed = MiniPS::Parser.parse_string(src)
assert_equal(5, parsed.size)
assert_equal(:executable_name, parsed[0][:type])
assert_equal("[", parsed[0][:val])
assert_equal(:executable_name, parsed[-1][:type])
assert_equal("]", parsed[-1][:val])
end
def test_parse_comment
src = <<__COMMENT_TEST__
123 % test
456
__COMMENT_TEST__
tk1, c, tk2 = MiniPS::Parser.parse_string(src)
assert_equal(:numeric, tk1[:type])
assert_equal(123, tk1[:val])
assert_equal(:comment, c[:type])
assert_equal("% test", c[:val])
assert_equal(:numeric, tk2[:type])
assert_equal(456, tk2[:val])
end
end
class TestStr < Test::Unit::TestCase
def test_str_slice
buf = MiniPS::Str.new(" " * 20)
s1 = buf.slice(0, 10)
s2 = s1.slice(3, 5)
buf.value[0, 5] = "aaaaa"
assert_equal("aaaaa ", buf.to_s)
assert_equal("aaaaa ", s1.to_s)
assert_equal("aa ", s2.to_s)
end
def test_str_to_readable
s1 = MiniPS::Str.new("\n\r\t")
s2 = s1.slice(1, 2)
assert_equal("(\\n\\r\\t)", s1.to_readable)
assert_equal("(\\r\\t)", s2.to_readable)
end
end
class TestValue < Test::Unit::TestCase
def setup
@vm = MiniPS::VM.new
end
def test_value_numeric_to_s
@vm.eval_string("1.23")
v = @vm.pop_op
assert_equal("1.23", v.to_s)
end
def test_value_string_to_s
@vm.eval_string("(as\\(df\\))")
v = @vm.pop_op
assert_equal("as(df)", v.to_s)
end
def test_value_literal_to_s
@vm.eval_string("/asdf")
v = @vm.pop_op
assert_equal("asdf", v.to_s)
end
def test_value_string_to_readable
@vm.eval_string("(as\\(df\\))")
v = @vm.pop_op
assert_equal("(as\\(df\\))", v.to_readable)
@vm.eval_string("((\\b\\f\\n\\r\\t))")
v = @vm.pop_op
assert_equal("(\\(\\b\\f\\n\\r\\t\\))", v.to_readable)
end
def test_value_literal_to_readable
@vm.eval_string("/asdf")
v = @vm.pop_op
assert_equal("/asdf", v.to_readable)
end
end
class TestVM < Test::Unit::TestCase
def setup
@vm = MiniPS::VM.new
end
def teardown
@vm = nil
end
class TestValues < TestVM
setup
def test_vm_eval_numeric
src = "123 4.5 16#ffff"
@vm.eval_string(src)
v1 = @vm.pop_op
v2 = @vm.pop_op
v3 = @vm.pop_op
assert_equal(123, v3.value)
assert_equal(4.5, v2.value)
assert_equal(65535, v1.value)
end
def test_vm_eval_array
src = "[123 (asdf) /qwer]"
@vm.eval_string(src)
a = @vm.pop_op
assert_equal(:array, a.type)
assert_equal(123, a.value[0].value)
assert_equal("(asdf)", a.value[1].to_readable)
assert_equal("/qwer", a.value[2].to_readable)
end
end
class TestNumOperators < TestVM
setup
def test_binary_op
@vm.eval_string("/x 12 def /y 5 def")
[
["add", 17],
["sub", 7],
["mul", 60],
["div", 2.4],
["idiv", 2],
["mod", 2],
["lt", false],
["gt", true],
["eq", false]
].each{|op, expect|
@vm.eval_string("x y #{op}")
assert_equal(expect, @vm.pop_op.value)
}
end
def test_unary_op
[
["1 abs", 1],
["-1 abs", 1],
["5 neg", -5],
["-5 neg", 5],
["2.5 ceiling", 3.0],
["2.5 floor", 2.0],
["-1.8 floor", -2.0],
["2.2 round", 2.0],
["2.5 round", 3.0],
["2.7 round", 3.0],
["3.5 round", 4.0],
["2.5 truncate", 2.0],
["-2.5 truncate", -2.0]
].each{|code, expect|
@vm.eval_string(code)
assert_equal(expect, @vm.pop_op.value)
}
end
def test_math_op
[
["9 sqrt", 3.0],
["3 4 exp", 81.0],
["#{Math::E.to_s} ln", 1.0],
["1000 log", 3.0]
].each{|code, expect|
@vm.eval_string(code)
assert_equal(expect, @vm.pop_op.value)
}
end
def test_trig_op
%w(sin cos tan).each{|op|
12.times{|i|
t = MiniPS::Util.deg2rad(i * 30)
@vm.eval_string("#{i * 30} #{op}")
assert_equal(Math.send(op, t), @vm.pop_op.value)
}
}
[
["0 1 atan", 0.0],
["1 0 atan", 90.0],
["0 -1 atan", 180.0],
["-1 0 atan", 270.0]
].each{|code, expect|
@vm.eval_string(code)
assert_equal(expect, @vm.pop_op.value)
}
end
end
class TestStrOperators < TestVM
setup
def test_strop_cvs
@vm.eval_string("/buf 20 string def")
nostr = "--nostringval--"
[["123", "123"],
["4e-3", "0.004"],
["(abcd)", "abcd"],
["true", "true"],
["1 dict", nostr],
["[1 2 3]", nostr],
["{==}", nostr],
["[", nostr]].each{|src, expect|
@vm.eval_string(src + " buf cvs")
assert_equal(expect, @vm.pop_op(:string).to_s)
}
end
def test_strop_cvs_sharing_buffer
src = <<__CVS_TEST__
/b1 (123456789) def
/b2 /asdf b1 cvs def
/b3 42 b2 cvs def
b3 b2 b1
__CVS_TEST__
@vm.eval_string(src)
b1 = @vm.pop_op(:string)
b2 = @vm.pop_op(:string)
b3 = @vm.pop_op(:string)
assert_equal("42df56789", b1.to_s)
assert_equal("42df", b2.to_s)
assert_equal("42", b3.to_s)
end
end
class TestConditionalOperators < TestVM
setup
def test_if
@vm.eval_string("0 1 lt {/ok} if")
v = @vm.pop_op(:literal_name)
assert_equal("/ok", v.to_readable)
@vm.eval_string("1 0 lt {/ng} if count")
v = @vm.pop_op(:numeric)
assert_equal(0, v.value)
end
def test_ifelse
@vm.eval_string("0 1 lt {/ok} {/ng} ifelse")
v = @vm.pop_op(:literal_name)
assert_equal("/ok", v.to_readable)
@vm.eval_string("1 0 lt {/ok} {/ng} ifelse")
v = @vm.pop_op(:literal_name)
assert_equal("/ng", v.to_readable)
end
end
class TestLoopOperators < TestVM
setup
def test_repeat
@vm.eval_string("1 5 { dup add } repeat")
v = @vm.pop_op(:numeric)
assert_equal(32, v.value)
end
def test_for
@vm.eval_string("0 1 1 10 { add } for")
v = @vm.pop_op(:numeric)
assert_equal(55, v.value)
end
def test_forall
@vm.eval_string("1 [1 2 3 4 5] { mul } forall")
v = @vm.pop_op(:numeric)
assert_equal(120, v.value)
end
def test_loop
@vm.eval_string("1 { dup add dup 1000 gt { exit } if } loop")
v = @vm.pop_op(:numeric)
assert_equal(1024, v.value)
end
end
class TestProc < TestVM
setup
def test_exec
@vm.eval_string("{42} exec")
v = @vm.pop_op(:numeric)
assert_equal(42, v.value)
end
def test_load
@vm.eval_string("/m /mul load def 10 10 m")
v = @vm.pop_op(:numeric)
assert_equal(100, v.value)
end
def test_recursive_call
src = "/fact { dup 1 eq { 1 } { dup 1 sub fact } ifelse mul } def 10 fact"
@vm.eval_string(src)
v = @vm.pop_op(:numeric)
assert_equal(3628800, v.value)
end
end
end