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require 'test/unit'
class TestCall < Test::Unit::TestCase
def aaa(a, b=100, *rest)
res = [a, b]
res += rest if rest
return res
end
def test_call
assert_raise(ArgumentError) {aaa()}
assert_raise(ArgumentError) {aaa}
assert_equal([1, 100], aaa(1))
assert_equal([1, 2], aaa(1, 2))
assert_equal([1, 2, 3, 4], aaa(1, 2, 3, 4))
assert_equal([1, 2, 3, 4], aaa(1, *[2, 3, 4]))
end
def test_callinfo
bug9622 = '[ruby-core:61422] [Bug #9622]'
o = Class.new do
def foo(*args)
bar(:foo, *args)
end
def bar(name)
name
end
end.new
e = assert_raise(ArgumentError) {o.foo(100)}
assert_nothing_raised(ArgumentError) {o.foo}
assert_raise_with_message(ArgumentError, e.message, bug9622) {o.foo(100)}
end
def test_safe_call
s = Struct.new(:x, :y)
o = s.new("x")
assert_equal("X", o.x.?upcase)
assert_nil(o.y.?upcase)
assert_equal("x", o.x)
o.?x = 6
assert_equal(6, o.x)
o.?x *= 7
assert_equal(42, o.x)
o = nil
assert_nil(o.?x)
assert_nothing_raised(NoMethodError) {o.?x = 6}
assert_nothing_raised(NoMethodError) {o.?x *= 7}
end
end
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