test/test-flight-sql.rb

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class FlightSQLTest < Test::Unit::TestCase
  include Helper::Sandbox

  setup do
    unless flight_client.respond_to?(:authenticate_basic)
      omit("ArrowFlight::Client#authenticate_basic is needed" )
    end
    @options = ArrowFlight::CallOptions.new
    @options.add_header("x-flight-sql-database", @test_db_name)
    user = @postgresql.user
    password = @postgresql.password
    flight_client.authenticate_basic(user, password, @options)
  end

  def test_select_int32
    info = flight_sql_client.execute("SELECT 1 AS value", @options)
    assert_equal(Arrow::Schema.new(value: :int32),
                 info.get_schema)
    endpoint = info.endpoints.first
    reader = flight_sql_client.do_get(endpoint.ticket, @options)
    assert_equal(Arrow::Table.new(value: Arrow::Int32Array.new([1])),
                 reader.read_all)
  end

  def test_select_from
    run_sql("CREATE TABLE data (value integer)")
    run_sql("INSERT INTO data VALUES (1), (-2), (3)")

    info = flight_sql_client.execute("SELECT * FROM data", @options)
    assert_equal(Arrow::Schema.new(value: :int32),
                 info.get_schema)
    endpoint = info.endpoints.first
    reader = flight_sql_client.do_get(endpoint.ticket, @options)
    assert_equal(Arrow::Table.new(value: Arrow::Int32Array.new([1, -2, 3])),
                 reader.read_all)
  end

  def test_isnert_int32
    unless filght_sql_client.respond_to?(:execute_update)
      omit("red-arrow-flight-sql 13.0.0 or later is required")
    end

    run_sql("CREATE TABLE data (value integer)")

    n_changed_records = flight_sql_client.execute_update(
      "INSERT INTO data VALUES (1), (-2), (3)",
      @options)
    assert_equal(3, n_changed_records)
    assert_equal([<<-RESULT, ""], run_sql("SELECT * FROM data"))
SELECT * FROM data
 value 
-------
     1
    -2
     3
(3 rows)

    RESULT
  end
end