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 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 void CustomizeDbaseFieldLength(this IFixture fixture, DbaseFieldLength maxLength)
{
fixture.Customize <DbaseFieldLength>(
customization =>
customization.FromFactory <int>(
value => new DbaseFieldLength(value.AsDbaseFieldLengthValue(maxLength.ToInt32()))
));
}
public static DbaseFieldLength GenerateDbaseInt32LengthLessThan(this IFixture fixture,
DbaseFieldLength maxLength)
{
using (var random = new PooledRandom())
{
return(new DbaseFieldLength(random.Next(maxLength.ToInt32())));
}
}
public void ToInt32ReturnsExpectedValue()
{
var value = _fixture.Create <int>().AsDbaseFieldLengthValue();
var sut = new DbaseFieldLength(value);
var result = sut.ToInt32();
Assert.Equal(value, result);
}
public DbaseField(DbaseFieldName name, DbaseFieldType fieldType, ByteOffset offset, DbaseFieldLength length,
DbaseDecimalCount decimalCount)
{
if (!Enum.IsDefined(typeof(DbaseFieldType), fieldType))
{
throw new ArgumentException(
$"The field type {fieldType} of field {name} is not supported.",
nameof(fieldType));
}
switch (fieldType)
{
case DbaseFieldType.Character:
if (decimalCount.ToInt32() != 0)
{
throw new ArgumentException(
$"The character field {name} decimal count ({decimalCount}) must be set to 0.",
nameof(decimalCount));
}
break;
case DbaseFieldType.DateTime:
if (length.ToInt32() != 15)
{
throw new ArgumentException($"The datetime field {name} length ({length}) must be set to 15.",
nameof(length));
}
if (decimalCount.ToInt32() != 0)
{
throw new ArgumentException(
$"The datetime field {name} decimal count ({decimalCount}) must be set to 0.",
nameof(decimalCount));
}
break;
case DbaseFieldType.Number:
if (length > DbaseDouble.MaximumLength)
{
throw new ArgumentException(
$"The number field {name} length ({length}) must be less than or equal to {DbaseDouble.MaximumLength}.",
nameof(length));
}
if (decimalCount.ToInt32() != 0)
{
if (length < DbaseDouble.MinimumLength)
{
throw new ArgumentException(
$"The number field {name} length ({length}) must be at least {DbaseDouble.MinimumLength}.",
nameof(length));
}
if (decimalCount > DbaseDouble.MaximumDecimalCount)
{
throw new ArgumentException(
$"The number field {name} decimal count ({decimalCount}) must be less than or equal to {DbaseDouble.MaximumDecimalCount}.",
nameof(decimalCount));
}
if (decimalCount.ToInt32() > length.ToInt32() - 2)
{
throw new ArgumentException(
$"The number field {name} decimal count ({decimalCount}) must be 2 less than its length ({length}).",
nameof(decimalCount));
}
}
break;
case DbaseFieldType.Float:
if (length > DbaseSingle.MaximumLength)
{
throw new ArgumentException(
$"The float field {name} length ({length}) must be less than or equal to {DbaseSingle.MaximumLength}.",
nameof(length));
}
if (decimalCount.ToInt32() != 0)
{
if (length < DbaseSingle.MinimumLength)
{
throw new ArgumentException(
$"The number field {name} length ({length}) must be at least {DbaseSingle.MinimumLength}.",
nameof(length));
}
if (decimalCount > DbaseSingle.MaximumDecimalCount)
{
throw new ArgumentException(
$"The float field {name} decimal count ({decimalCount}) must be less than or equal to {DbaseSingle.MaximumDecimalCount}.",
nameof(decimalCount));
}
if (decimalCount.ToInt32() > length.ToInt32() - 2)
{
throw new ArgumentException(
$"The float field {name} decimal count ({decimalCount}) must be 2 less than its length ({length}).",
nameof(decimalCount));
}
}
break;
case DbaseFieldType.Logical:
if (decimalCount.ToInt32() != 0)
{
throw new ArgumentException(
$"The logical field {name} decimal count ({decimalCount}) must be set to 0.",
nameof(decimalCount));
}
if (length.ToInt32() != 1)
{
throw new ArgumentException(
$"The logical field {name} length ({length}) must be set to 1.",
nameof(length));
}
break;
}
Name = name;
FieldType = fieldType;
Offset = offset;
Length = length;
DecimalCount = decimalCount;
if (FieldType == DbaseFieldType.Number || FieldType == DbaseFieldType.Float)
{
PositiveIntegerDigits =
DecimalCount.ToInt32() != 0
? new DbaseIntegerDigits(
Length
.Minus(DecimalCount.ToLength())
.Minus(DecimalSeparatorLength)
.ToInt32()
)
: new DbaseIntegerDigits(Length.ToInt32());
NegativeIntegerDigits =
PositiveIntegerDigits != new DbaseIntegerDigits(0)
? PositiveIntegerDigits
.Minus(SignLength)
: new DbaseIntegerDigits(0);
}
else
{
PositiveIntegerDigits = new DbaseIntegerDigits(0);
NegativeIntegerDigits = new DbaseIntegerDigits(0);
}
}
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 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 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 DbaseIntegerDigits Minus(DbaseFieldLength other) => new DbaseIntegerDigits(_value - other.ToInt32());
public DbaseIntegerDigits Plus(DbaseFieldLength other)
{
return(new DbaseIntegerDigits(_value + other.ToInt32()));
}
public ByteOffset Plus(DbaseFieldLength other)
{
return(new ByteOffset(_value + other.ToInt32()));
}
public DbaseRecordLength Plus(DbaseFieldLength other)
{
return(new DbaseRecordLength(_value + other.ToInt32()));
}