require "cases/helper" module ActiveRecord class ResultTest < ActiveRecord::TestCase def result Result.new(["col_1", "col_2"], [ ["row 1 col 1", "row 1 col 2"], ["row 2 col 1", "row 2 col 2"], ["row 3 col 1", "row 3 col 2"], ]) end test "length" do assert_equal 3, result.length end test "to_hash returns row_hashes" do assert_equal [ { "col_1" => "row 1 col 1", "col_2" => "row 1 col 2" }, { "col_1" => "row 2 col 1", "col_2" => "row 2 col 2" }, { "col_1" => "row 3 col 1", "col_2" => "row 3 col 2" }, ], result.to_hash end test "first returns first row as a hash" do assert_equal( { "col_1" => "row 1 col 1", "col_2" => "row 1 col 2" }, result.first) end test "last returns last row as a hash" do assert_equal( { "col_1" => "row 3 col 1", "col_2" => "row 3 col 2" }, result.last) end test "each with block returns row hashes" do result.each do |row| assert_equal ["col_1", "col_2"], row.keys end end test "each without block returns an enumerator" do result.each.with_index do |row, index| assert_equal ["col_1", "col_2"], row.keys assert_kind_of Integer, index end end if Enumerator.method_defined? :size test "each without block returns a sized enumerator" do assert_equal 3, result.each.size end end test "cast_values returns rows after type casting" do values = [["1.1", "2.2"], ["3.3", "4.4"]] columns = ["col1", "col2"] types = { "col1" => Type::Integer.new, "col2" => Type::Float.new } result = Result.new(columns, values, types) assert_equal [[1, 2.2], [3, 4.4]], result.cast_values end test "cast_values uses identity type for unknown types" do values = [["1.1", "2.2"], ["3.3", "4.4"]] columns = ["col1", "col2"] types = { "col1" => Type::Integer.new } result = Result.new(columns, values, types) assert_equal [[1, "2.2"], [3, "4.4"]], result.cast_values end test "cast_values returns single dimensional array if single column" do values = [["1.1"], ["3.3"]] columns = ["col1"] types = { "col1" => Type::Integer.new } result = Result.new(columns, values, types) assert_equal [1, 3], result.cast_values end test "cast_values can receive types to use instead" do values = [["1.1", "2.2"], ["3.3", "4.4"]] columns = ["col1", "col2"] types = { "col1" => Type::Integer.new, "col2" => Type::Float.new } result = Result.new(columns, values, types) assert_equal [[1.1, 2.2], [3.3, 4.4]], result.cast_values("col1" => Type::Float.new) end end end