public void TargetType()
{
// Arrange
IConverter converter = new KeyValueConverter(new StringConverter(), new Int32Converter());
var expectedType = typeof (KeyValuePair<string, int>);
// Act
var actualType = converter.TargetType;
// Assert
Assert.Equal(expectedType, actualType);
}
public void ConversionWithNullValue()
{
// Arrange
IConverter converter = new KeyValueConverter(new StringConverter(), new Int32Converter());
var value = "Test";
var expectedKeyValue = "Test";
// Act
var actualValue = converter.Convert(value, converter.TargetType);
// Assert
Assert.NotNull(actualValue);
var actualTuple = Assert.IsAssignableFrom<Tuple<object, object>>(actualValue);
Assert.Equal(expectedKeyValue, (string) actualTuple.Item1);
Assert.Null(actualTuple.Item2);
}
public void BadValueConversion()
{
// Arrange
IConverter converter = new KeyValueConverter(new StringConverter(), new Int32Converter());
var value = "Hello=Hello";
var expectedExceptionMessage = Constants.ExceptionMessages.FormatConverterUnableConvert("Hello", 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);
}
}
public void EmptyValueConverter()
{
// Arrange
IConverter converter = new KeyValueConverter(new StringConverter(), new Int32Converter());
var expectedInnerExceptionMessage = @"value";
var value = string.Empty;
// Act
var actualException = Assert.Throws<ArgumentNullException>(() => converter.Convert(value, converter.TargetType));
// Assert
Assert.Equal(expectedInnerExceptionMessage, actualException.ParamName);
}