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-rw-r--r--activerecord/test/cases/type/date_time_test.rb16
1 files changed, 16 insertions, 0 deletions
diff --git a/activerecord/test/cases/type/date_time_test.rb b/activerecord/test/cases/type/date_time_test.rb
new file mode 100644
index 0000000000..c9558e25b5
--- /dev/null
+++ b/activerecord/test/cases/type/date_time_test.rb
@@ -0,0 +1,16 @@
+# frozen_string_literal: true
+
+require "cases/helper"
+require "models/task"
+
+module ActiveRecord
+ module Type
+ class DateTimeTest < ActiveRecord::TestCase
+ def test_datetime_seconds_precision_applied_to_timestamp
+ skip "This test is invalid if subsecond precision isn't supported" unless subsecond_precision_supported?
+ p = Task.create!(starting: ::Time.now)
+ assert_equal p.starting.usec, p.reload.starting.usec
+ end
+ end
+ end
+end