public void CanReadWriteNullString()
{
var sut = new DbaseString(
new DbaseField(
_fixture.Create <DbaseFieldName>(),
DbaseFieldType.Character,
ByteOffset.Initial,
new DbaseFieldLength(5),
new DbaseDecimalCount(0)
),
null
);
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 DbaseString(sut.Field);
result.Read(reader);
Assert.Equal(sut.Field, result.Field);
Assert.Equal(sut.Value, result.Value);
}
}
}
public void CanReadWriteNullOrEmptyString(string value)
{
var sut = _fixture.Create <DbaseString>();
sut.Value = value;
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 DbaseString(sut.Field);
result.Read(reader);
Assert.Equal(sut.Field, result.Field);
Assert.Equal(sut.Value, result.Value);
}
}
}
public void Inspect(DbaseString value)
{
var length = new Generator <DbaseFieldLength>(_fixture)
.First(specimen => specimen <= value.Field.Length);
switch (_random.Next() % 2)
{
case 0:
value.Value = null;
break;
case 1:
if (value.Field.Length != new DbaseFieldLength(0))
{
var generated = _fixture.Create <string>();
value.Value = generated.Substring(0, Math.Min(generated.Length, length.ToInt32()));
}
else
{
value.Value = string.Empty;
}
break;
}
}
public void AcceptsStringValueReturnsExpectedResult(int length, string value, bool accepted)
{
var sut = new DbaseString(
DbaseField.CreateCharacterField(
_fixture.Create <DbaseFieldName>(),
new DbaseFieldLength(length)
));
var result = sut.AcceptsValue(value);
Assert.Equal(accepted, result);
}
public void CanNotReadPastEndOfStream()
{
var sut = _fixture.Create <DbaseString>();
using (var stream = new MemoryStream())
{
using (var writer = new BinaryWriter(stream, Encoding.ASCII, true))
{
writer.Write(_fixture.CreateMany <byte>(new Random().Next(0, sut.Field.Length.ToInt32())).ToArray());
writer.Flush();
}
stream.Position = 0;
using (var reader = new BinaryReader(stream, Encoding.ASCII, true))
{
var result = new DbaseString(sut.Field);
Assert.Throws <EndOfStreamException>(() => result.Read(reader));
}
}
}
public void Inspect(DbaseString value)
{
HashCode = value.Value != null
? value.Value.GetHashCode()
: 0;
}
public void Inspect(DbaseString value)
{
Value = value.Value;
}
public void Inspect(DbaseString value)
{
Comparer = new DelegatingDbaseFieldValueEqualityComparer <DbaseString>(
new DbaseStringEqualityComparer());
}
public void Visit(DbaseString value)
{
HashCode = value.Value?.GetHashCode() ?? 0;
}