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authorKenta Murata <mrkn@mrkn.jp>2021-10-27 17:31:45 +0900
committerKenta Murata <mrkn@mrkn.jp>2021-12-24 02:28:54 +0900
commitb2a74948b6fe60727235b80ab56b4c701c315aa3 (patch)
treeec1d4e73b8bd6278b0529160ee33f0994a992aaf /test/bigdecimal/test_bigdecimal_util.rb
parented7f4c24d73333a716ce7944a465f430a7f7f910 (diff)
[ruby/bigdecimal] Add tests for the issue GH-192
https://github.com/ruby/bigdecimal/commit/e864828b47
Diffstat (limited to 'test/bigdecimal/test_bigdecimal_util.rb')
-rw-r--r--test/bigdecimal/test_bigdecimal_util.rb15
1 files changed, 15 insertions, 0 deletions
diff --git a/test/bigdecimal/test_bigdecimal_util.rb b/test/bigdecimal/test_bigdecimal_util.rb
index ffd4c5f679..2f27163ebf 100644
--- a/test/bigdecimal/test_bigdecimal_util.rb
+++ b/test/bigdecimal/test_bigdecimal_util.rb
@@ -25,6 +25,8 @@ class TestBigDecimalUtil < Test::Unit::TestCase
assert_equal(9.05, 9.05.to_d.to_f)
assert_equal("9.05", 9.05.to_d.to_s('F'))
+ assert_equal("65.6", 65.6.to_d.to_s("F"))
+
assert_equal(Math::PI, Math::PI.to_d.to_f)
bug9214 = '[ruby-core:58858]'
@@ -60,6 +62,19 @@ class TestBigDecimalUtil < Test::Unit::TestCase
"[ruby-core:80234] [Bug #13331]")
end
+ def test_Float_to_d_issue_192
+ # https://github.com/ruby/bigdecimal/issues/192
+ # https://github.com/rails/rails/pull/42125
+ if BASE_FIG == 9
+ flo = 1_000_000_000.12345
+ big = BigDecimal("0.100000000012345e10")
+ else # BASE_FIG == 4
+ flo = 1_0000.12
+ big = BigDecimal("0.1000012e5")
+ end
+ assert_equal(flo.to_d, big, "[ruby/bigdecimal#192]")
+ end
+
def test_Rational_to_d
digits = 100
delta = 1.0/10**(digits)