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require "cases/helper"
require 'support/schema_dumping_helper'
class PostgresqlByteaTest < ActiveRecord::PostgreSQLTestCase
include SchemaDumpingHelper
class ByteaDataType < ActiveRecord::Base
self.table_name = 'bytea_data_type'
end
def setup
@connection = ActiveRecord::Base.connection
begin
@connection.transaction do
@connection.create_table('bytea_data_type') do |t|
t.binary 'payload'
t.binary 'serialized'
end
end
end
@column = ByteaDataType.columns_hash['payload']
@type = ByteaDataType.type_for_attribute("payload")
end
teardown do
@connection.drop_table 'bytea_data_type', if_exists: true
end
def test_column
assert @column.is_a?(ActiveRecord::ConnectionAdapters::PostgreSQLColumn)
assert_equal :binary, @column.type
end
def test_binary_columns_are_limitless_the_upper_limit_is_one_GB
assert_equal 'bytea', @connection.type_to_sql(:binary, 100_000)
assert_raise ActiveRecord::ActiveRecordError do
@connection.type_to_sql :binary, 4294967295
end
end
def test_type_cast_binary_converts_the_encoding
assert @column
data = "\u001F\x8B"
assert_equal('UTF-8', data.encoding.name)
assert_equal('ASCII-8BIT', @type.deserialize(data).encoding.name)
end
def test_type_cast_binary_value
data = "\u001F\x8B".force_encoding("BINARY")
assert_equal(data, @type.deserialize(data))
end
def test_type_case_nil
assert_equal(nil, @type.deserialize(nil))
end
def test_read_value
data = "\u001F"
@connection.execute "insert into bytea_data_type (payload) VALUES ('#{data}')"
record = ByteaDataType.first
assert_equal(data, record.payload)
record.delete
end
def test_read_nil_value
@connection.execute "insert into bytea_data_type (payload) VALUES (null)"
record = ByteaDataType.first
assert_equal(nil, record.payload)
record.delete
end
def test_write_value
data = "\u001F"
record = ByteaDataType.create(payload: data)
assert_not record.new_record?
assert_equal(data, record.payload)
end
def test_via_to_sql
data = "'\u001F\\"
ByteaDataType.create(payload: data)
sql = ByteaDataType.where(payload: data).select(:payload).to_sql
result = @connection.query(sql)
assert_equal([[data]], result)
end
def test_via_to_sql_with_complicating_connection
Thread.new do
other_conn = ActiveRecord::Base.connection
other_conn.execute('SET standard_conforming_strings = off')
end.join
test_via_to_sql
end
def test_write_binary
data = File.read(File.join(File.dirname(__FILE__), '..', '..', '..', 'assets', 'example.log'))
assert(data.size > 1)
record = ByteaDataType.create(payload: data)
assert_not record.new_record?
assert_equal(data, record.payload)
assert_equal(data, ByteaDataType.where(id: record.id).first.payload)
end
def test_write_nil
record = ByteaDataType.create(payload: nil)
assert_not record.new_record?
assert_equal(nil, record.payload)
assert_equal(nil, ByteaDataType.where(id: record.id).first.payload)
end
class Serializer
def load(str); str; end
def dump(str); str; end
end
def test_serialize
klass = Class.new(ByteaDataType) {
serialize :serialized, Serializer.new
}
obj = klass.new
obj.serialized = "hello world"
obj.save!
obj.reload
assert_equal "hello world", obj.serialized
end
def test_schema_dumping
output = dump_table_schema("bytea_data_type")
assert_match %r{t\.binary\s+"payload"$}, output
assert_match %r{t\.binary\s+"serialized"$}, output
end
end
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