public void TargetType()
{
// Arrange
IConverter converter = new Int32Converter();
var expectedType = typeof (Int32);
// Act
var actualType = converter.TargetType;
// Assert
Assert.Equal(expectedType, actualType);
}
public void Conversion()
{
// Arrange
IConverter converter = new Int32Converter();
var value = "42";
var expectedValue = 42;
// Act
var actualValue = converter.Convert(value, converter.TargetType);
// Assert
Assert.NotNull(actualValue);
Assert.IsType<Int32>(actualValue);
Assert.Equal(expectedValue, (Int32) actualValue);
}
public void BadValueConversion()
{
// Arrange
IConverter converter = new Int32Converter();
var value = "Hello";
var expectedExceptionMessage = Constants.ExceptionMessages.FormatConverterUnableConvert(value, typeof(int));
var expectedInnerExceptionMessage = "Input string was not in a correct format.";
// Act
using (new LangageSwitcher("en-us"))
{
var actualException =
Assert.Throws<CommandLineParserException>(() => converter.Convert(value, converter.TargetType));
// Assert
Assert.Equal(expectedExceptionMessage, actualException.Message);
Assert.NotNull(actualException.InnerException);
var actualInnerExecption = Assert.IsAssignableFrom<FormatException>(actualException.InnerException);
Assert.Equal(expectedInnerExceptionMessage, actualInnerExecption.Message);
}
}