public static void CustomizeDbaseString(this IFixture fixture)
{
fixture.Customize <DbaseString>(
customization =>
customization
.FromFactory <int>(
value =>
{
using (var random = new PooledRandom(value))
{
var length = new DbaseFieldLength(random.Next(0, 255));
return(new DbaseString(
new DbaseField(
fixture.Create <DbaseFieldName>(),
DbaseFieldType.Character,
fixture.Create <ByteOffset>(),
length,
new DbaseDecimalCount(0)
),
new string('a', random.Next(0, length.ToInt32()))));
}
}
)
.OmitAutoProperties());
}
public static DbaseFieldLength GenerateDbaseSingleLengthBetween(this IFixture fixture,
DbaseFieldLength minLength, DbaseFieldLength maxLength)
{
if (minLength < DbaseSingle.MinimumLength || minLength > DbaseSingle.MaximumLength)
{
throw new ArgumentOutOfRangeException(nameof(minLength),
$"The minimum length needs to be between {DbaseSingle.MinimumLength} and {DbaseSingle.MaximumLength}.");
}
if (maxLength < DbaseSingle.MinimumLength || maxLength > DbaseSingle.MaximumLength)
{
throw new ArgumentOutOfRangeException(nameof(maxLength),
$"The maximum length needs to be between {DbaseSingle.MinimumLength} and {DbaseSingle.MaximumLength}.");
}
if (minLength > maxLength)
{
throw new ArgumentOutOfRangeException(nameof(minLength),
$"The minimum length {minLength} needs to be less than or equal to the maximum length {maxLength}.");
}
using (var random = new PooledRandom())
{
return(new DbaseFieldLength(random.Next(minLength.ToInt32(), maxLength.ToInt32())));
}
}
public static DbaseFieldLength GenerateDbaseInt32LengthLessThan(this IFixture fixture,
DbaseFieldLength maxLength)
{
using (var random = new PooledRandom())
{
return(new DbaseFieldLength(random.Next(maxLength.ToInt32())));
}
}
public static DbaseFieldLength GenerateDbaseSingleLength(this IFixture fixture)
{
using (var random = new PooledRandom())
{
return(new DbaseFieldLength(random.Next(DbaseSingle.MinimumLength.ToInt32(),
DbaseSingle.MaximumLength.ToInt32())));
}
}
public static IPostprocessComposer <T> FromFactory <T>(this IFactoryComposer <T> composer, Func <Random, T> factory)
{
return(composer.FromFactory <int>(value =>
{
using (var random = new PooledRandom(value))
{
return factory(random);
}
}));
}
public static IPostprocessComposer <T> FromNumberGenerator <T>(this IFactoryComposer <T> composer,
Func <DbaseFieldNumberGenerator, T> factory)
{
return(composer.FromFactory <int>(value =>
{
using (var random = new PooledRandom(value))
{
return factory(new DbaseFieldNumberGenerator(random));
}
}));
}
public static DbaseFieldLength GenerateDbaseInt16Length(this IFixture fixture, DbaseFieldType fieldType)
{
using (var random = new PooledRandom())
{
if (fieldType == DbaseFieldType.Number)
{
return(new DbaseFieldLength(random.Next(DbaseDouble.MaximumLength.ToInt32())));
}
return(new DbaseFieldLength(random.Next(DbaseSingle.MaximumLength.ToInt32())));
}
}
public void ResetHasExpectedResult()
{
using (var random = new PooledRandom())
{
var sut = _fixture.Create <DbaseNumber>();
sut.Value = new DbaseFieldNumberGenerator(random).GenerateAcceptableValue(sut);
sut.Reset();
Assert.Null(sut.Value);
}
}
public void ResetHasExpectedResult()
{
using (var random = new PooledRandom())
{
var sut = _fixture.Create <DbaseDecimal>();
sut.Value = new DbaseFieldNumberGenerator(random).GenerateAcceptableValue(sut);
sut.Reset();
Assert.False(sut.HasValue);
Assert.Throws <FormatException>(() => sut.Value);
}
}
public static DbaseDecimalCount GenerateDbaseSingleDecimalCount(this IFixture fixture, DbaseFieldLength length)
{
if (length < DbaseSingle.MinimumLength || length > DbaseSingle.MaximumLength)
{
throw new ArgumentOutOfRangeException(nameof(length),
$"The length needs to be between {DbaseSingle.MinimumLength} and {DbaseSingle.MaximumLength}.");
}
using (var random = new PooledRandom())
{
return(new DbaseDecimalCount(random.Next(1,
Math.Min(DbaseSingle.MaximumDecimalCount.ToInt32(), length.ToInt32()) - 2)));
}
}
public static DbaseFieldLength GenerateDbaseDoubleLengthLessThan(this IFixture fixture,
DbaseFieldLength maxLength)
{
if (maxLength < DbaseDouble.MinimumLength || maxLength > DbaseDouble.MaximumLength)
{
throw new ArgumentOutOfRangeException(nameof(maxLength),
$"The maximum length needs to be between {DbaseDouble.MinimumLength} and {DbaseDouble.MaximumLength}.");
}
using (var random = new PooledRandom())
{
return(new DbaseFieldLength(random.Next(DbaseDouble.MinimumLength.ToInt32(), maxLength.ToInt32() + 1)));
}
}
public static DbaseDecimalCount GenerateDbaseDoubleDecimalCount(this IFixture fixture,
DbaseDecimalCount minimum, DbaseFieldLength length)
{
if (length > DbaseDouble.MaximumLength)
{
throw new ArgumentOutOfRangeException(nameof(length),
$"The length ({length}) can not exceed the maximum length ({DbaseDouble.MaximumLength}).");
}
using (var random = new PooledRandom())
{
return(new DbaseDecimalCount(random.Next(minimum.ToInt32(),
Math.Min(DbaseDouble.MaximumDecimalCount.ToInt32() + 1, length.ToInt32()) - 2)));
}
}
public void CanReadWriteWithMaxDecimalCount()
{
var length = DbaseNumber.MaximumLength;
var decimalCount = DbaseNumber.MaximumDecimalCount;
var sut =
new DbaseNumber(
new DbaseField(
_fixture.Create <DbaseFieldName>(),
DbaseFieldType.Number,
_fixture.Create <ByteOffset>(),
length,
decimalCount
)
);
using (var random = new PooledRandom())
{
sut.Value =
new DbaseFieldNumberGenerator(random)
.GenerateAcceptableValue(sut);
using (var stream = new MemoryStream())
{
using (var writer = new BinaryWriter(stream, Encoding.ASCII, true))
{
sut.Write(writer);
writer.Flush();
}
stream.Position = 0;
using (var reader = new BinaryReader(stream, Encoding.ASCII, true))
{
var result = new DbaseNumber(sut.Field);
result.Read(reader);
Assert.Equal(sut.Field, result.Field);
Assert.Equal(sut.Value, result.Value);
}
}
}
}
public void CanReadWriteNegative()
{
using (var random = new PooledRandom())
{
var sut = new DbaseNumber(
new DbaseField(
_fixture.Create <DbaseFieldName>(),
DbaseFieldType.Number,
_fixture.Create <ByteOffset>(),
DbaseNumber.NegativeValueMinimumLength,
new DbaseDecimalCount(1)
)
);
sut.Value =
new DbaseFieldNumberGenerator(random)
.GenerateAcceptableValue(sut);
using (var stream = new MemoryStream())
{
using (var writer = new BinaryWriter(stream, Encoding.ASCII, true))
{
sut.Write(writer);
writer.Flush();
}
stream.Position = 0;
using (var reader = new BinaryReader(stream, Encoding.ASCII, true))
{
var result = new DbaseNumber(sut.Field);
result.Read(reader);
Assert.Equal(sut, result, new DbaseFieldValueEqualityComparer());
}
}
}
}
