public void Convert_StringProvided_ThrowsCastException()
{
var converter = new DoubleToStringConverter();
Assert.Throws<InvalidCastException>(
() => converter.Convert("hello", null, null, null));
}
public void Convert_Zero_ReturnsEmptyString()
{
var converter = new DoubleToStringConverter();
var result = converter.Convert(0d, null, null, null);
Assert.AreEqual("", result);
}
public void Convert_NonZero_ReturnsString()
{
var converter = new DoubleToStringConverter();
var result = converter.Convert(3.14D, null, null, null);
Assert.AreEqual("3.14", result);
}