From a5b4b806de3b130348a92aa3306fbb9318efb762 Mon Sep 17 00:00:00 2001 From: Kenta Murata Date: Wed, 13 Jan 2021 10:28:23 +0900 Subject: [ruby/bigdecimal] Allow digits=0 in BigDecimal(flt) and Float#to_d Using dtoa of mode=0, we can determine the number of digits in decimal that is necessary to represent the given Float number without errors. This change permits digits=0 in BigDecimal(flt) and Float#to_d, and these methods use dtoa of mode=0 when the given digits is 0. Internal implicit conversion from Float also uses digits=0. [Fix GH-70] https://github.com/ruby/bigdecimal/commit/2dbe170e35 --- test/bigdecimal/test_bigdecimal_util.rb | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'test/bigdecimal/test_bigdecimal_util.rb') diff --git a/test/bigdecimal/test_bigdecimal_util.rb b/test/bigdecimal/test_bigdecimal_util.rb index 9c6973dca7f..ffd4c5f679d 100644 --- a/test/bigdecimal/test_bigdecimal_util.rb +++ b/test/bigdecimal/test_bigdecimal_util.rb @@ -19,11 +19,11 @@ class TestBigDecimalUtil < Test::Unit::TestCase def test_Float_to_d_without_precision delta = 1.0/10**(Float::DIG+1) - assert_in_delta(BigDecimal(0.5, Float::DIG+1), 0.5.to_d, delta) - assert_in_delta(BigDecimal(355.0/113.0, Float::DIG+1), (355.0/113.0).to_d, delta) + assert_in_delta(BigDecimal(0.5, 0), 0.5.to_d, delta) + assert_in_delta(BigDecimal(355.0/113.0, 0), (355.0/113.0).to_d, delta) assert_equal(9.05, 9.05.to_d.to_f) - assert_equal("9.050000000000001", 9.05.to_d.to_s('F')) + assert_equal("9.05", 9.05.to_d.to_s('F')) assert_equal(Math::PI, Math::PI.to_d.to_f) @@ -34,6 +34,8 @@ class TestBigDecimalUtil < Test::Unit::TestCase assert_raise(TypeError) { 0.3.to_d(false) } assert(1.1.to_d.frozen?) + + assert_equal(BigDecimal("999_999.9999"), 999_999.9999.to_d) end def test_Float_to_d_with_precision -- cgit v1.2.1