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-rw-r--r--activesupport/lib/active_support/core_ext/time/calculations.rb4
-rw-r--r--activesupport/test/core_ext/time_ext_test.rb14
2 files changed, 16 insertions, 2 deletions
diff --git a/activesupport/lib/active_support/core_ext/time/calculations.rb b/activesupport/lib/active_support/core_ext/time/calculations.rb
index 9c019e10b5..b755726db2 100644
--- a/activesupport/lib/active_support/core_ext/time/calculations.rb
+++ b/activesupport/lib/active_support/core_ext/time/calculations.rb
@@ -75,9 +75,9 @@ class Time
# Returns the fraction of a second as a +Rational+
#
- # Time.new(2012, 8, 29, 0, 0, 0.5).sec_fraction # => (1/2)
+ # Time.new(2012, 8, 29, 0, 0, 0.5).sec_fraction # => (1/2)
def sec_fraction
- Rational(nsec, 1000000000)
+ subsec
end
# Returns a new Time where one or more of the elements have been changed according
diff --git a/activesupport/test/core_ext/time_ext_test.rb b/activesupport/test/core_ext/time_ext_test.rb
index d8bb38621b..1205797fac 100644
--- a/activesupport/test/core_ext/time_ext_test.rb
+++ b/activesupport/test/core_ext/time_ext_test.rb
@@ -107,6 +107,20 @@ class TimeExtCalculationsTest < ActiveSupport::TestCase
end
end
+ def test_sec_fraction
+ time = Time.utc(2016, 4, 23, 0, 0, Rational(1,10000000000))
+ assert_equal Rational(1,10000000000), time.sec_fraction
+
+ time = Time.utc(2016, 4, 23, 0, 0, 0.0000000001)
+ assert_equal 0.0000000001.to_r, time.sec_fraction
+
+ time = Time.utc(2016, 4, 23, 0, 0, 0, Rational(1,10000))
+ assert_equal Rational(1,10000000000), time.sec_fraction
+
+ time = Time.utc(2016, 4, 23, 0, 0, 0, 0.0001)
+ assert_equal 0.0001.to_r / 1000000, time.sec_fraction
+ end
+
def test_beginning_of_day
assert_equal Time.local(2005,2,4,0,0,0), Time.local(2005,2,4,10,10,10).beginning_of_day
with_env_tz 'US/Eastern' do