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author | mrkn <mrkn@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2016-06-13 11:43:54 +0000 |
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committer | mrkn <mrkn@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2016-06-13 11:43:54 +0000 |
commit | 9042cf217ea758ba988cb0000e8801e573457390 (patch) | |
tree | bdc4cba547c6702589b1d0a658bd17af41039462 /test/ruby/test_integer.rb | |
parent | c071c052292168592de091cdb4c22dc3fbfd1af1 (diff) | |
download | ruby-9042cf217ea758ba988cb0000e8801e573457390.tar.gz |
numeric.c: Add Integer#digits [Feature #12447] [ruby-core:75799]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55395 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'test/ruby/test_integer.rb')
-rw-r--r-- | test/ruby/test_integer.rb | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/test/ruby/test_integer.rb b/test/ruby/test_integer.rb index e493a7546d..6a9001c698 100644 --- a/test/ruby/test_integer.rb +++ b/test/ruby/test_integer.rb @@ -331,4 +331,43 @@ class TestInteger < Test::Unit::TestCase assert_equal(i+1, (n+1).bit_length, "#{n+1}.bit_length") } end + + def test_digits + assert_equal([0], 0.digits) + assert_equal([1], 1.digits) + assert_equal([0, 9, 8, 7, 6, 5, 4, 3, 2, 1], 1234567890.digits) + assert_equal([90, 78, 56, 34, 12], 1234567890.digits(100)) + assert_equal([10, 5, 6, 8, 0, 10, 8, 6, 1], 1234567890.digits(13)) + end + + def test_digits_for_negative_numbers + assert_raise(Math::DomainError) { -1.digits } + assert_raise(Math::DomainError) { -1234567890.digits } + assert_raise(Math::DomainError) { -1234567890.digits(100) } + assert_raise(Math::DomainError) { -1234567890.digits(13) } + end + + def test_digits_for_invalid_base_numbers + assert_raise(ArgumentError) { 10.digits(-1) } + assert_raise(ArgumentError) { 10.digits(0) } + assert_raise(ArgumentError) { 10.digits(1) } + end + + def test_digits_for_non_integral_base_numbers + assert_equal([1], 1.digits(10r)) + assert_equal([1], 1.digits(10.0)) + assert_raise(RangeError) { 10.digits(10+1i) } + end + + def test_digits_for_non_numeric_base_argument + assert_raise(TypeError) { 10.digits("10") } + assert_raise(TypeError) { 10.digits("a") } + + class << (o = Object.new) + def to_int + 10 + end + end + assert_equal([0, 1], 10.digits(o)) + end end |