private char[] GeneratePositiveNumber(DbaseIntegerDigits digits, DbaseDecimalCount decimals)
{
var data = new char[digits.ToInt32() + 1 + decimals.ToInt32()];
for (var index = 0; index < digits.ToInt32(); index++)
{
data[index] = _random.Next(0, 10).ToString()[0];
}
data[digits.ToInt32()] = '.';
for (var index = 0; index < decimals.ToInt32(); index++)
{
data[digits.ToInt32() + 1 + index] = _random.Next(0, 10).ToString()[0];
}
return(data);
}
public static void CustomizeDbaseDecimalCount(this IFixture fixture, DbaseDecimalCount maximum)
{
fixture.Customize <DbaseDecimalCount>(
customization =>
customization.FromFactory <int>(
value => new DbaseDecimalCount(value.AsDbaseDecimalCountValue(maximum.ToInt32()))
));
}
public void ToInt32ReturnsExpectedValue()
{
var value = _fixture.Create <int>().AsDbaseDecimalCountValue();
var sut = new DbaseDecimalCount(value);
var result = sut.ToInt32();
Assert.Equal(value, result);
}
public bool Equals(DbaseDouble left, DbaseDouble right)
{
if (left == null && right == null)
{
return(true);
}
if (left == null || right == null)
{
return(false);
}
return(left.Field.Equals(right.Field) &&
Math.Abs(left.Value - right.Value) < Math.Pow(10, -_precision.ToInt32()));
}
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 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 bool Equals(DbaseDecimal left, DbaseDecimal right)
{
if (left == null && right == null)
{
return(true);
}
if (left == null || right == null)
{
return(false);
}
if (left.Value == null && right.Value == null)
{
return(left.Field.Equals(right.Field));
}
if (left.Value == null || right.Value == null)
{
return(false);
}
return(left.Field.Equals(right.Field) &&
Math.Abs(left.Value.Value - right.Value.Value) < Convert.ToDecimal(Math.Pow(10, -_precision.ToInt32())));
}