61 lines
2.3 KiB
Rust
61 lines
2.3 KiB
Rust
// Licensed to the Apache Software Foundation (ASF) under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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use core::str;
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use std::sync::Arc;
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use arrow_array::*;
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use arrow_schema::*;
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#[test]
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fn test_export_csv_timestamps() {
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let schema = Schema::new(vec![
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Field::new(
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"c1",
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DataType::Timestamp(TimeUnit::Millisecond, Some("Australia/Sydney".into())),
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true,
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),
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Field::new("c2", DataType::Timestamp(TimeUnit::Millisecond, None), true),
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]);
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let c1 = TimestampMillisecondArray::from(
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// 1555584887 converts to 2019-04-18, 20:54:47 in time zone Australia/Sydney (AEST).
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// The offset (difference to UTC) is +10:00.
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// 1635577147 converts to 2021-10-30 17:59:07 in time zone Australia/Sydney (AEDT)
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// The offset (difference to UTC) is +11:00. Note that daylight savings is in effect on 2021-10-30.
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//
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vec![Some(1555584887378), Some(1635577147000)],
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)
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.with_timezone("Australia/Sydney".to_string());
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let c2 = TimestampMillisecondArray::from(vec![Some(1555584887378), Some(1635577147000)]);
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let batch = RecordBatch::try_new(Arc::new(schema), vec![Arc::new(c1), Arc::new(c2)]).unwrap();
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let mut sw = Vec::new();
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let mut writer = arrow_csv::Writer::new(&mut sw);
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let batches = vec![&batch];
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for batch in batches {
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writer.write(batch).unwrap();
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}
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drop(writer);
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let left = "c1,c2
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2019-04-18T20:54:47.378+10:00,2019-04-18T10:54:47.378
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2021-10-30T17:59:07+11:00,2021-10-30T06:59:07\n";
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let right = str::from_utf8(&sw).unwrap();
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assert_eq!(left, right);
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}
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