ceph/src/arrow/c_glib/test/test-cast.rb

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   5 # to you under the Apache License, Version 2.0 (the
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   7 # with the License.  You may obtain a copy of the License at
   8 #
   9 #   http://www.apache.org/licenses/LICENSE-2.0
  10 #
  11 # Unless required by applicable law or agreed to in writing,
  12 # software distributed under the License is distributed on an
  13 # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  14 # KIND, either express or implied.  See the License for the
  15 # specific language governing permissions and limitations
  16 # under the License.
  17
  18 class TestCast < Test::Unit::TestCase
  19   include Helper::Buildable
  20   include Helper::Omittable
  21
  22   def test_safe
  23     data = [-1, 2, nil]
  24     assert_equal(build_int32_array(data),
  25                  build_int8_array(data).cast(Arrow::Int32DataType.new))
  26   end
  27
  28   sub_test_case("allow-int-overflow") do
  29     def test_default
  30       assert_raise(Arrow::Error::Invalid) do
  31         build_int32_array([128]).cast(Arrow::Int8DataType.new)
  32       end
  33     end
  34
  35     def test_true
  36       options = Arrow::CastOptions.new
  37       options.allow_int_overflow = true
  38       assert_equal(build_int8_array([-128]),
  39                    build_int32_array([128]).cast(Arrow::Int8DataType.new,
  40                                                  options))
  41     end
  42   end
  43
  44   sub_test_case("allow-time-truncate") do
  45     def test_default
  46       after_epoch_in_milli = 1504953190854 # 2017-09-09T10:33:10.854Z
  47       second_timestamp_data_type = Arrow::TimestampDataType.new(:second)
  48       milli_array = build_timestamp_array(:milli, [after_epoch_in_milli])
  49       assert_raise(Arrow::Error::Invalid) do
  50         milli_array.cast(second_timestamp_data_type)
  51       end
  52     end
  53
  54     def test_true
  55       options = Arrow::CastOptions.new
  56       options.allow_time_truncate = true
  57       after_epoch_in_milli = 1504953190854 # 2017-09-09T10:33:10.854Z
  58       second_array = build_timestamp_array(:second,
  59                                            [after_epoch_in_milli / 1000])
  60       milli_array  = build_timestamp_array(:milli, [after_epoch_in_milli])
  61       second_timestamp_data_type = Arrow::TimestampDataType.new(:second)
  62       assert_equal(second_array,
  63                    milli_array.cast(second_timestamp_data_type, options))
  64     end
  65   end
  66
  67   sub_test_case("allow-time-overflow") do
  68     def test_default
  69       after_epoch_in_second = 95617584000 # 5000-01-01T00:00:00Z
  70       nano_timestamp_data_type = Arrow::TimestampDataType.new(:nano)
  71       second_array = build_timestamp_array(:second, [after_epoch_in_second])
  72       assert_raise(Arrow::Error::Invalid) do
  73         second_array.cast(nano_timestamp_data_type)
  74       end
  75     end
  76
  77     def test_true
  78       options = Arrow::CastOptions.new
  79       options.allow_time_overflow = true
  80       after_epoch_in_second = 95617584000 # 5000-01-01T00:00:00Z
  81       second_array = build_timestamp_array(:second,
  82                                            [after_epoch_in_second])
  83       after_epoch_in_nano_overflowed =
  84         (after_epoch_in_second * 1000 * 1000 * 1000) % (2 ** 64)
  85       nano_array   = build_timestamp_array(:nano,
  86                                            [after_epoch_in_nano_overflowed])
  87       nano_timestamp_data_type = Arrow::TimestampDataType.new(:nano)
  88       assert_equal(nano_array,
  89                    second_array.cast(nano_timestamp_data_type, options))
  90     end
  91   end
  92
  93   sub_test_case("allow-decimal-truncate") do
  94     def test_default
  95       decimal128_data_type = Arrow::Decimal128DataType.new(8, 2)
  96       decimal128_array = build_decimal128_array(decimal128_data_type,
  97                                                 ["23423445"])
  98       assert_raise(Arrow::Error::Invalid) do
  99         decimal128_array.cast(Arrow::Int64DataType.new)
 100       end
 101     end
 102
 103     def test_true
 104       options = Arrow::CastOptions.new
 105       options.allow_decimal_truncate = true
 106       decimal128_data_type = Arrow::Decimal128DataType.new(8, 2)
 107       decimal128_array = build_decimal128_array(decimal128_data_type,
 108                                                 ["23423445"])
 109       assert_equal(build_int64_array([234234]),
 110                    decimal128_array.cast(Arrow::Int64DataType.new, options))
 111     end
 112   end
 113
 114   sub_test_case("allow-float-truncate") do
 115     def test_default
 116       assert_raise(Arrow::Error::Invalid) do
 117         build_float_array([1.1]).cast(Arrow::Int8DataType.new)
 118       end
 119     end
 120
 121     def test_true
 122       options = Arrow::CastOptions.new
 123       options.allow_float_truncate = true
 124       int8_data_type = Arrow::Int8DataType.new
 125       assert_equal(build_int8_array([1]),
 126                    build_float_array([1.1]).cast(int8_data_type, options))
 127     end
 128   end
 129
 130   sub_test_case("allow-invalid-utf8") do
 131     def test_default
 132       assert_raise(Arrow::Error::Invalid) do
 133         build_binary_array(["\xff"]).cast(Arrow::StringDataType.new)
 134       end
 135     end
 136
 137     def test_true
 138       options = Arrow::CastOptions.new
 139       options.allow_invalid_utf8 = true
 140       string_data_type = Arrow::StringDataType.new
 141       assert_equal(build_string_array(["\xff"]),
 142                    build_binary_array(["\xff"]).cast(string_data_type, options))
 143     end
 144   end
 145 end