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# frozen_string_literal: true
require "cases/helper"
class PostgresqlInfinityTest < ActiveRecord::PostgreSQLTestCase
include InTimeZone
class PostgresqlInfinity < ActiveRecord::Base
end
setup do
@connection = ActiveRecord::Base.connection
@connection.create_table(:postgresql_infinities) do |t|
t.float :float
t.datetime :datetime
t.date :date
end
end
teardown do
@connection.drop_table "postgresql_infinities", if_exists: true
end
test "type casting infinity on a float column" do
record = PostgresqlInfinity.create!(float: Float::INFINITY)
record.reload
assert_equal Float::INFINITY, record.float
end
test "type casting string on a float column" do
record = PostgresqlInfinity.new(float: "Infinity")
assert_equal Float::INFINITY, record.float
record = PostgresqlInfinity.new(float: "-Infinity")
assert_equal(-Float::INFINITY, record.float)
record = PostgresqlInfinity.new(float: "NaN")
assert record.float.nan?, "Expected #{record.float} to be NaN"
end
test "update_all with infinity on a float column" do
record = PostgresqlInfinity.create!
PostgresqlInfinity.update_all(float: Float::INFINITY)
record.reload
assert_equal Float::INFINITY, record.float
end
test "type casting infinity on a datetime column" do
record = PostgresqlInfinity.create!(datetime: "infinity")
record.reload
assert_equal Float::INFINITY, record.datetime
record = PostgresqlInfinity.create!(datetime: Float::INFINITY)
record.reload
assert_equal Float::INFINITY, record.datetime
end
test "type casting infinity on a date column" do
record = PostgresqlInfinity.create!(date: "infinity")
record.reload
assert_equal Float::INFINITY, record.date
record = PostgresqlInfinity.create!(date: Float::INFINITY)
record.reload
assert_equal Float::INFINITY, record.date
end
test "update_all with infinity on a datetime column" do
record = PostgresqlInfinity.create!
PostgresqlInfinity.update_all(datetime: Float::INFINITY)
record.reload
assert_equal Float::INFINITY, record.datetime
end
test "assigning 'infinity' on a datetime column with TZ aware attributes" do
begin
in_time_zone "Pacific Time (US & Canada)" do
record = PostgresqlInfinity.create!(datetime: "infinity")
assert_equal Float::INFINITY, record.datetime
assert_equal record.datetime, record.reload.datetime
end
ensure
# setting time_zone_aware_attributes causes the types to change.
# There is no way to do this automatically since it can be set on a superclass
PostgresqlInfinity.reset_column_information
end
end
test "where clause with infinite range on a datetime column" do
record = PostgresqlInfinity.create!(datetime: Time.current)
string = PostgresqlInfinity.where(datetime: "-infinity".."infinity")
assert_equal record, string.take
infinity = PostgresqlInfinity.where(datetime: -::Float::INFINITY..::Float::INFINITY)
assert_equal record, infinity.take
assert_equal infinity.to_sql, string.to_sql
end
test "where clause with infinite range on a date column" do
record = PostgresqlInfinity.create!(date: Date.current)
string = PostgresqlInfinity.where(date: "-infinity".."infinity")
assert_equal record, string.take
infinity = PostgresqlInfinity.where(date: -::Float::INFINITY..::Float::INFINITY)
assert_equal record, infinity.take
assert_equal infinity.to_sql, string.to_sql
end
end
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