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# frozen_string_literal: true
require 'spec_helper'
RSpec.describe ClickHouse::Client::Formatter do
it 'formats values according to types in metadata' do
# this query here is just for documentation purposes, it generates the response below
_query = <<~SQL.squish
SELECT toUInt64(1) as uint64,
toNullable(toUInt64(2)) as nullable_uint64,
CAST(NULL AS Nullable(UInt64)) as nullable_uint64_null,
toDateTime64('2016-06-15 23:00:00', 6, 'UTC') as datetime64_6,
INTERVAL 1 second as interval_second,
INTERVAL 1 millisecond as interval_millisecond
SQL
response_json = <<~JSON
{
"meta":
[
{
"name": "uint64",
"type": "UInt64"
},
{
"name": "nullable_uint64",
"type": "Nullable(UInt64)"
},
{
"name": "nullable_uint64_null",
"type": "Nullable(UInt64)"
},
{
"name": "datetime64_6",
"type": "DateTime64(6, 'UTC')"
},
{
"name": "interval_second",
"type": "IntervalSecond"
},
{
"name": "interval_millisecond",
"type": "IntervalMillisecond"
}
],
"data":
[
{
"uint64": "1",
"nullable_uint64": "2",
"nullable_uint64_null": null,
"datetime64_6": "2016-06-15 23:00:00.000000",
"interval_second": "1",
"interval_millisecond": "1"
}
],
"rows": 1,
"statistics":
{
"elapsed": 0.00168,
"rows_read": 1,
"bytes_read": 1
}
}
JSON
parsed_response = JSON.parse(response_json)
formatted_response = described_class.format(parsed_response)
expect(formatted_response).to(
eq(
[{ "uint64" => 1,
"nullable_uint64" => 2,
"nullable_uint64_null" => nil,
"datetime64_6" => ActiveSupport::TimeZone["UTC"].parse("2016-06-15 23:00:00"),
"interval_second" => 1.second,
"interval_millisecond" => 0.001.seconds }]
)
)
end
end
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