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Add Integer.try_convert [Feature #15211]

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This commit is contained in:
Nobuyoshi Nakada 2018-10-07 13:02:46 +09:00
parent eee709595c
commit 301d194ee3
Notes: git 2021-07-16 17:50:23 +09:00
6 changed files with 83 additions and 3 deletions
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17
test/ruby/test_integer.rb
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@ -660,4 +660,21 @@ class TestInteger < Test::Unit::TestCase
def o.fdiv(x); 1; end
assert_equal(1.0, 1.fdiv(o))
end
def test_try_convert
assert_equal(1, Integer.try_convert(1))
assert_equal(1, Integer.try_convert(1.0))
assert_nil Integer.try_convert("1")
o = Object.new
assert_nil Integer.try_convert(o)
def o.to_i; 1; end
assert_nil Integer.try_convert(o)
o = Object.new
def o.to_int; 1; end
assert_equal(1, Integer.try_convert(o))
o = Object.new
def o.to_int; Object.new; end
assert_raise_with_message(TypeError, /can't convert Object to Integer/) {Integer.try_convert(o)}
end
end