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# frozen_string_literal: true
require "cases/helper"
require "support/schema_dumping_helper"
if subsecond_precision_supported?
class DateTimePrecisionTest < ActiveRecord::TestCase
include SchemaDumpingHelper
self.use_transactional_tests = false
class Foo < ActiveRecord::Base; end
setup do
@connection = ActiveRecord::Base.connection
Foo.reset_column_information
end
teardown do
@connection.drop_table :foos, if_exists: true
end
def test_datetime_data_type_with_precision
@connection.create_table(:foos, force: true)
@connection.add_column :foos, :created_at, :datetime, precision: 0
@connection.add_column :foos, :updated_at, :datetime, precision: 5
assert_equal 0, Foo.columns_hash["created_at"].precision
assert_equal 5, Foo.columns_hash["updated_at"].precision
end
def test_datetime_precision_is_truncated_on_assignment
@connection.create_table(:foos, force: true)
@connection.add_column :foos, :created_at, :datetime, precision: 0
@connection.add_column :foos, :updated_at, :datetime, precision: 6
time = ::Time.now.change(nsec: 123456789)
foo = Foo.new(created_at: time, updated_at: time)
assert_equal 0, foo.created_at.nsec
assert_equal 123456000, foo.updated_at.nsec
foo.save!
foo.reload
assert_equal 0, foo.created_at.nsec
assert_equal 123456000, foo.updated_at.nsec
end
unless current_adapter?(:Mysql2Adapter)
def test_no_datetime_precision_isnt_truncated_on_assignment
@connection.create_table(:foos, force: true)
@connection.add_column :foos, :created_at, :datetime
@connection.add_column :foos, :updated_at, :datetime, precision: 6
time = ::Time.now.change(nsec: 123)
foo = Foo.new(created_at: time, updated_at: time)
assert_equal 123, foo.created_at.nsec
assert_equal 0, foo.updated_at.nsec
foo.save!
foo.reload
assert_equal 0, foo.created_at.nsec
assert_equal 0, foo.updated_at.nsec
end
end
def test_timestamps_helper_with_custom_precision
@connection.create_table(:foos, force: true) do |t|
t.timestamps precision: 4
end
assert_equal 4, Foo.columns_hash["created_at"].precision
assert_equal 4, Foo.columns_hash["updated_at"].precision
end
def test_passing_precision_to_datetime_does_not_set_limit
@connection.create_table(:foos, force: true) do |t|
t.timestamps precision: 4
end
assert_nil Foo.columns_hash["created_at"].limit
assert_nil Foo.columns_hash["updated_at"].limit
end
def test_invalid_datetime_precision_raises_error
assert_raises ArgumentError do
@connection.create_table(:foos, force: true) do |t|
t.timestamps precision: 7
end
end
end
def test_formatting_datetime_according_to_precision
@connection.create_table(:foos, force: true) do |t|
t.datetime :created_at, precision: 0
t.datetime :updated_at, precision: 4
end
date = ::Time.utc(2014, 8, 17, 12, 30, 0, 999999)
Foo.create!(created_at: date, updated_at: date)
assert foo = Foo.find_by(created_at: date)
assert_equal 1, Foo.where(updated_at: date).count
assert_equal date.to_s, foo.created_at.to_s
assert_equal date.to_s, foo.updated_at.to_s
assert_equal 000000, foo.created_at.usec
assert_equal 999900, foo.updated_at.usec
end
def test_schema_dump_includes_datetime_precision
@connection.create_table(:foos, force: true) do |t|
t.timestamps precision: 6
end
output = dump_table_schema("foos")
assert_match %r{t\.datetime\s+"created_at",\s+precision: 6,\s+null: false$}, output
assert_match %r{t\.datetime\s+"updated_at",\s+precision: 6,\s+null: false$}, output
end
if current_adapter?(:PostgreSQLAdapter, :SQLServerAdapter)
def test_datetime_precision_with_zero_should_be_dumped
@connection.create_table(:foos, force: true) do |t|
t.timestamps precision: 0
end
output = dump_table_schema("foos")
assert_match %r{t\.datetime\s+"created_at",\s+precision: 0,\s+null: false$}, output
assert_match %r{t\.datetime\s+"updated_at",\s+precision: 0,\s+null: false$}, output
end
end
end
end
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