public void BasicTest()
{
var formatter = new SiFormatter {
FormatProvider = CultureInfo.InvariantCulture
};
var std = formatter.WriteToString(144e4m);
Assert.Equal("1.44 M", std);
}
public void TestForceExtensions()
{
var formatter = new SiFormatter();
formatter.MakeCultureInvariant(); // extension to make the formatter culture invariant
formatter.ForceMega();
var result = formatter.WriteToString(144e4m);
// result contains 1 k
Assert.Equal("1.44 M", result);
}
public void DoubleToStringTest()
{
var formatter = new SiFormatter
{
FormatProvider = CultureInfo.InvariantCulture,
SignificantDecimalPlaces = 1,
ShortenStrategy = NumberShortenStrategy.Round
};
double doubleValue = 123.4567;
var formattedText = formatter.WriteToString(doubleValue);
Assert.Equal("123.5", formattedText);
}
public void TestSiFormatterWithUnit()
{
var formatter = new SiFormatter();
formatter.MakeCultureInvariant();
formatter.ForceKilo();
formatter.Unit = "B"; // Byte
Assert.Equal("0.123 kB", formatter.WriteToString(123));
formatter.ForceMega();
formatter.Format = "0.######";
Assert.Equal("0.000123 MB", formatter.WriteToString(123));
formatter.AutoScale(); // auto degree
Assert.Equal("123 B", formatter.WriteToString(123));
}
public void TestSiFormatterWithForcedDegree()
{
var formatter = new SiFormatter();
formatter.MakeCultureInvariant();
formatter.ForcedDegree = 1; // force Kilo
formatter.Delimiter = ""; // remove delimiter between value and unit
Assert.Equal("0.123k", formatter.WriteToString(123));
formatter.ForcedDegree = 2; // force mega
formatter.Format = "0.######";
Assert.Equal("0.000123M", formatter.WriteToString(123));
formatter.ForcedDegree = null; // auto degree
Assert.Equal("123", formatter.WriteToString(123));
}
public void TestFormattingRoundingGlitch()
{
var formatter = new SiFormatter {
Format = "0.##"
};
formatter.MakeCultureInvariant();
// because the formatting limits the decimal places to 2 decimal places the formatting rounds up to 1000
Assert.Equal("1000 k", formatter.WriteToString(999999));
// To prevent automatic rounding via formatting you can limit the significant decimal places to the
// given number of digits.
formatter.SignificantDecimalPlaces = 2;
Assert.Equal("999.99 k", formatter.WriteToString(999999));
}
public void DoubleWriteTest()
{
var formatter = new SiFormatter
{
FormatProvider = CultureInfo.InvariantCulture,
SignificantDecimalPlaces = 1,
ShortenStrategy = NumberShortenStrategy.Round
};
double doubleValue = 123.4567;
var sb = new StringBuilder();
var tw = new StringWriter(sb);
formatter.Write(doubleValue, tw);
var formattedText = sb.ToString();
Assert.Equal("123.5", formattedText);
}
public void TestSiFormatterEdges()
{
var formatter = new SiFormatter {
Format = "0.##"
};
formatter.MakeCultureInvariant();
Assert.Equal("0", formatter.WriteToString(0));
// int min/max
Assert.Equal("2.15 G", formatter.WriteToString(int.MaxValue));
Assert.Equal("-2.15 G", formatter.WriteToString(int.MinValue));
// double min/max
Assert.Equal("> 999 Y", formatter.WriteToString(decimal.MaxValue));
Assert.Equal("< -999 Y", formatter.WriteToString(decimal.MinValue));
}
public void TestSiFormatter()
{
var formatter = new SiFormatter();
formatter.MakeCultureInvariant();
Assert.Equal("1 k", formatter.WriteToString(1000));
Assert.Equal("10", formatter.WriteToString(10));
Assert.Equal("1 M", formatter.WriteToString(1000000));
formatter.Format = "n2";
Assert.Equal("1.44 M", formatter.WriteToString(1440000));
formatter.Delimiter = "\t";
Assert.Equal("1.44\tM", formatter.WriteToString(1440000));
formatter.Delimiter = "";
Assert.Equal("1.44M", formatter.WriteToString(1440000));
formatter.Format = "0.##";
Assert.Equal($"150{Micro}", formatter.WriteToString(1.5e-4m));
}
public void TestSiMultiples()
{
var formatter = new SiFormatter {
Format = "0.##"
};
formatter.MakeCultureInvariant();
Assert.Equal("1", formatter.WriteToString(1));
Assert.Equal("999", formatter.WriteToString(999));
Assert.Equal("1 k", formatter.WriteToString(1e3m));
Assert.Equal("1 M", formatter.WriteToString(1e6m));
Assert.Equal("1 G", formatter.WriteToString(1e9m));
Assert.Equal("1 T", formatter.WriteToString(1e12m));
Assert.Equal("1 P", formatter.WriteToString(1e15m));
Assert.Equal("1 E", formatter.WriteToString(1e18m));
Assert.Equal("1 Z", formatter.WriteToString(1e21m));
Assert.Equal("1 Y", formatter.WriteToString(1e24m));
Assert.Equal("999 Y", formatter.WriteToString(999e24m));
Assert.Equal("> 999 Y", formatter.WriteToString(1e27m));
}
public void TestSiFractions()
{
var formatter = new SiFormatter {
Format = "0.##"
};
formatter.MakeCultureInvariant();
Assert.Equal("1", formatter.WriteToString(1));
Assert.Equal("1 m", formatter.WriteToString(1e-3m));
Assert.Equal("999 m", formatter.WriteToString(999e-3m));
Assert.Equal($"1 {Micro}", formatter.WriteToString(1e-6m));
Assert.Equal("1 n", formatter.WriteToString(1e-9m));
Assert.Equal("1 p", formatter.WriteToString(1e-12m));
Assert.Equal("1 f", formatter.WriteToString(1e-15m));
Assert.Equal("1 a", formatter.WriteToString(1e-18m));
Assert.Equal("1 z", formatter.WriteToString(1e-21m));
Assert.Equal("1 y", formatter.WriteToString(1e-24m));
Assert.Equal("999 y", formatter.WriteToString(999e-24m));
Assert.Equal("< 1 y", formatter.WriteToString(1e-27M));
}
