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 WritesExcessDecimalsAsZero()
{
var length = _fixture.GenerateDbaseDoubleLength();
var decimalCount = _fixture.GenerateDbaseDoubleDecimalCount(length);
var sut = new DbaseNumber(
new DbaseField(
_fixture.Create <DbaseFieldName>(),
DbaseFieldType.Number,
_fixture.Create <ByteOffset>(),
length,
decimalCount
), 0.0);
using (var stream = new MemoryStream())
{
using (var writer = new BinaryWriter(stream, Encoding.ASCII, true))
{
sut.Write(writer);
writer.Flush();
}
stream.Position = 0;
if (decimalCount.ToInt32() == 0)
{
Assert.Equal(
"0".PadLeft(length.ToInt32()),
Encoding.ASCII.GetString(stream.ToArray()));
}
else
{
Assert.Equal(
new string(' ', length.ToInt32() - decimalCount.ToInt32() - 2)
+ "0."
+ new string('0', decimalCount.ToInt32()),
Encoding.ASCII.GetString(stream.ToArray())
);
}
}
}
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());
}
}
}
}