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feat(csharp/test): implement DuckDb test fixture (apache#1781)
Adds support for running tests against DuckDb and implements a simple smoke test.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,72 @@ | ||
| /* | ||
| * Licensed to the Apache Software Foundation (ASF) under one or more | ||
| * contributor license agreements. See the NOTICE file distributed with | ||
| * this work for additional information regarding copyright ownership. | ||
| * The ASF licenses this file to You under the Apache License, Version 2.0 | ||
| * (the "License"); you may not use this file except in compliance with | ||
| * the License. You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
|
||
| using System; | ||
| using System.Collections.Generic; | ||
| using System.IO; | ||
| using System.Runtime.InteropServices; | ||
| using Apache.Arrow.Adbc.C; | ||
|
|
||
| namespace Apache.Arrow.Adbc.Tests | ||
| { | ||
| public class DuckDbFixture : IDisposable | ||
| { | ||
| readonly string _dataDirectory; | ||
| AdbcDriver _driver; | ||
|
|
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| public DuckDbFixture() | ||
| { | ||
| _dataDirectory = Path.Combine(Path.GetTempPath(), "AdbcTest_DuckDb", Guid.NewGuid().ToString("D")); | ||
| Directory.CreateDirectory(_dataDirectory); | ||
|
|
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| string root = Directory.GetCurrentDirectory(); | ||
| string file; | ||
| if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux)) | ||
| file = Path.Combine(root, "libduckdb.so"); | ||
| else if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows)) | ||
| file = Path.Combine(root, "duckdb.dll"); | ||
| else | ||
| file = Path.Combine(root, "libduckdb.dylib"); | ||
|
|
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| _driver = CAdbcDriverImporter.Load(file, "duckdb_adbc_init"); | ||
| } | ||
|
|
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| public AdbcDatabase OpenDatabase(string name) | ||
| { | ||
| if (_driver == null) throw new ObjectDisposedException("DuckDbFixture"); | ||
|
|
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| return _driver.Open(new Dictionary<string, string> { { "path", Path.Combine(_dataDirectory, name) } }); | ||
| } | ||
|
|
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| public void Dispose() | ||
| { | ||
| if (_driver != null) | ||
| { | ||
| _driver.Dispose(); | ||
| _driver = null; | ||
|
|
||
| try | ||
| { | ||
| Directory.Delete(_dataDirectory, true); | ||
| } | ||
| catch | ||
| { | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } |
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65
csharp/test/Apache.Arrow.Adbc.Tests/ImportedDuckDbTests.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,65 @@ | ||
| /* | ||
| * Licensed to the Apache Software Foundation (ASF) under one or more | ||
| * contributor license agreements. See the NOTICE file distributed with | ||
| * this work for additional information regarding copyright ownership. | ||
| * The ASF licenses this file to You under the Apache License, Version 2.0 | ||
| * (the "License"); you may not use this file except in compliance with | ||
| * the License. You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
|
||
| using Apache.Arrow.Types; | ||
| using Xunit; | ||
|
|
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| namespace Apache.Arrow.Adbc.Tests | ||
| { | ||
| public class ImportedDuckDbTests : IClassFixture<DuckDbFixture> | ||
| { | ||
| readonly DuckDbFixture _duckDb; | ||
|
|
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| public ImportedDuckDbTests(DuckDbFixture duckDb) | ||
| { | ||
| _duckDb = duckDb; | ||
| } | ||
|
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| [Fact] | ||
| public void SimpleEndToEndTest() | ||
| { | ||
| using var database = _duckDb.OpenDatabase("test.db"); | ||
| using var connection = database.Connect(null); | ||
| using var statement = connection.CreateStatement(); | ||
|
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| statement.SqlQuery = "CREATE TABLE integers(foo INTEGER, bar INTEGER);"; | ||
| statement.ExecuteUpdate(); | ||
|
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| statement.SqlQuery = "INSERT INTO integers VALUES (3, 4), (5, 6), (7, 8);"; | ||
| statement.ExecuteUpdate(); | ||
|
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| statement.SqlQuery = "SELECT * from integers"; | ||
| var results = statement.ExecuteQuery(); | ||
|
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| using var stream = results.Stream; | ||
|
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| var schema = stream.Schema; | ||
| Assert.Equal(2, schema.FieldsList.Count); | ||
| Assert.Equal(ArrowTypeId.Int32, schema.FieldsList[0].DataType.TypeId); | ||
| Assert.Equal(ArrowTypeId.Int32, schema.FieldsList[1].DataType.TypeId); | ||
|
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| var firstBatch = stream.ReadNextRecordBatchAsync().Result; | ||
| Assert.Equal(3, firstBatch.Length); | ||
| Assert.Equal(3, (firstBatch.Column(0) as Int32Array).Values[0]); | ||
| Assert.Equal(5, (firstBatch.Column(0) as Int32Array).Values[1]); | ||
| Assert.Equal(7, (firstBatch.Column(0) as Int32Array).Values[2]); | ||
|
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| var secondBatch = stream.ReadNextRecordBatchAsync().Result; | ||
| Assert.Null(secondBatch); | ||
| } | ||
| } | ||
| } |