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SpannerConversionOptionsTests.cs
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SpannerConversionOptionsTests.cs
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// Copyright 2022 Google Inc. All Rights Reserved.
//
// Licensed 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 Google.Cloud.Spanner.V1;
using System;
using Xunit;
namespace Google.Cloud.Spanner.Data.Tests
{
public class SpannerConversionOptionsTests
{
[Fact]
public void Defaults()
{
var options = SpannerConversionOptions.Default;
Assert.True(options.UseDBNull);
Assert.Equal(SpannerDbType.Float32, options.SingleToConfiguredSpannerType);
Assert.Equal(SpannerDbType.Numeric, options.DecimalToConfiguredSpannerType);
Assert.Equal(SpannerDbType.Timestamp, options.DateTimeToConfiguredSpannerType);
Assert.Equal(typeof(DateTime), options.DateToConfiguredClrType);
}
[Fact]
public void WithClrDefaultForNullSetting()
{
var options = SpannerConversionOptions.Default;
options = options.WithClrDefaultForNullSetting(true);
Assert.Equal(false, options.UseDBNull);
options = options.WithClrDefaultForNullSetting(false);
Assert.Equal(true, options.UseDBNull);
// Test with builder as well.
var builder = new SpannerConnectionStringBuilder();
builder.UseClrDefaultForNull = true;
Assert.Equal(false, builder.ConversionOptions.UseDBNull);
// Explicitly set valid type mapping.
builder = new SpannerConnectionStringBuilder("UseClrDefaultForNull=false");
Assert.Equal(true, builder.ConversionOptions.UseDBNull);
}
[Fact]
public void WithSpannerToClrMappings()
{
var options = SpannerConversionOptions.Default;
options = options.WithSpannerToClrMappings("DateToDateTime");
Assert.Equal(typeof(DateTime), options.DateToConfiguredClrType);
options = options.WithSpannerToClrMappings("DateToSpannerDate");
Assert.Equal(typeof(SpannerDate), options.DateToConfiguredClrType);
// Test with builder as well.
var builder = new SpannerConnectionStringBuilder();
builder.SpannerToClrTypeDefaultMappings = "DateToDateTime";
Assert.Equal(typeof(DateTime), builder.ConversionOptions.DateToConfiguredClrType);
// Explicitly set valid type mapping.
builder = new SpannerConnectionStringBuilder("SpannerToClrTypeDefaultMappings=DateToSpannerDate");
Assert.Equal(typeof(SpannerDate), builder.ConversionOptions.DateToConfiguredClrType);
// Check that properties are case insensitive.
builder = new SpannerConnectionStringBuilder();
builder.SpannerToClrTypeDefaultMappings = "datetodatetime";
Assert.Equal(typeof(DateTime), builder.ConversionOptions.DateToConfiguredClrType);
}
[Fact]
public void WithClrToSpannerMappings()
{
var options = SpannerConversionOptions.Default;
options = options.WithClrToSpannerMappings("SingleToFloat32,DecimalToNumeric,DateTimeToDate");
Assert.Equal(SpannerDbType.Float32, options.SingleToConfiguredSpannerType);
Assert.Equal(SpannerDbType.Numeric, options.DecimalToConfiguredSpannerType);
Assert.Equal(SpannerDbType.Date, options.DateTimeToConfiguredSpannerType);
options = options.WithClrToSpannerMappings("SingleToFloat64,DecimalToPgNumeric,DateTimeToTimestamp");
Assert.Equal(SpannerDbType.Float64, options.SingleToConfiguredSpannerType);
Assert.Equal(SpannerDbType.PgNumeric, options.DecimalToConfiguredSpannerType);
Assert.Equal(SpannerDbType.Timestamp, options.DateTimeToConfiguredSpannerType);
// Test with builder as well.
var builder = new SpannerConnectionStringBuilder();
builder.ClrToSpannerTypeDefaultMappings = "SingleToFloat32,DecimalToFloat64,DateTimeToDate";
Assert.Equal(SpannerDbType.Float32, builder.ConversionOptions.SingleToConfiguredSpannerType);
Assert.Equal(SpannerDbType.Float64, builder.ConversionOptions.DecimalToConfiguredSpannerType);
Assert.Equal(SpannerDbType.Date, builder.ConversionOptions.DateTimeToConfiguredSpannerType);
// Explicitly set valid type mapping.
builder = new SpannerConnectionStringBuilder("ClrToSpannerTypeDefaultMappings=SingleToFloat32,DecimalToNumeric,DateTimeToTimestamp");
Assert.Equal(SpannerDbType.Float32, builder.ConversionOptions.SingleToConfiguredSpannerType);
Assert.Equal(SpannerDbType.Numeric, builder.ConversionOptions.DecimalToConfiguredSpannerType);
Assert.Equal(SpannerDbType.Timestamp, builder.ConversionOptions.DateTimeToConfiguredSpannerType);
// Check that properties are case-insensitive.
builder = new SpannerConnectionStringBuilder();
builder.ClrToSpannerTypeDefaultMappings = "singletofloat32,decimaltofloat64,datetimeTodate";
Assert.Equal(SpannerDbType.Float32, builder.ConversionOptions.SingleToConfiguredSpannerType);
Assert.Equal(SpannerDbType.Float64, builder.ConversionOptions.DecimalToConfiguredSpannerType);
Assert.Equal(SpannerDbType.Date, builder.ConversionOptions.DateTimeToConfiguredSpannerType);
}
[Theory]
[InlineData("DecimalToFloat64,DecimalToNumeric,DateTimeToDate")] // Multiple mappings for Decimal.
[InlineData("DecimalToFloat64,DateTimeToDate,DateTimeToTimestamp")] // Multiple mappings for DateTime.
[InlineData("DecimalToFloat64,SingleToFloat64,SingleToFloat32")] // Multiple mappings for Single.
[InlineData("DecimalToFloat64 ,DateTimeToDate")] // Whitespace after.
[InlineData("DecimalToFloat64, DateTimeToDate")] // Whitespace before.
[InlineData("UseDecimalToNumeric,DateTimeToDate")] // Invalid value.
public void BadClrToSpannerTypeDefaultMappingsThrows(string clrToSpannerTypeMappings)
{
var options = SpannerConversionOptions.Default;
Assert.Throws<ArgumentException>(() => options.WithClrToSpannerMappings(clrToSpannerTypeMappings));
}
[Theory]
[InlineData("DateToDateTime,DateToSpannerDate")] // Multiple mappings for a type.
[InlineData(" DateToDateTime ,")] // Whitespace.
[InlineData("UseDateToSpannerDate")] // Invalid value.
public void BadSpannerToClrTypeDefaultMappingsThrows(string spannerToClrTypeMappings)
{
var options = SpannerConversionOptions.Default;
Assert.Throws<ArgumentException>(() => options.WithSpannerToClrMappings(spannerToClrTypeMappings));
}
}
}