csharp/test/Apache.Arrow.Tests/DecimalUtilityTests.cs

// 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 Apache.Arrow.Types;
using Xunit;

namespace Apache.Arrow.Tests
{
    public class DecimalUtilityTests
    {
        public class Overflow
        {
            [Theory]
            [InlineData(100.123, 10, 4, false)]
            [InlineData(100.123, 6, 4, false)]
            [InlineData(100.123, 3, 3, true)]
            [InlineData(100.123, 10, 2, true)]
            [InlineData(100.123, 5, 2, true)]
            [InlineData(100.123, 5, 3, true)]
            [InlineData(100.123, 6, 3, false)]
            public void HasExpectedResultOrThrows(decimal d, int precision , int scale, bool shouldThrow)
            {
                var builder = new Decimal128Array.Builder(new Decimal128Type(precision, scale));

                if (shouldThrow)
                {
                   Assert.Throws<OverflowException>(() => builder.Append(d));
                }
                else
                {
                    builder.Append(d);
                    var result = builder.Build(new TestMemoryAllocator());
                    Assert.Equal(d, result.GetValue(0));
                }
            }
        }
    }
}