public static string GetTempFilePath(this PathAbstractions path, string extension)
{
if (path == null)
{
throw new ArgumentNullException(nameof(path));
}
var tempDirectory = path.GetTempPath();
var tempName = Path.GetFileNameWithoutExtension(path.GetTempFileName());
var tempFileName = Path.ChangeExtension(tempName, extension);
return(Path.Combine(tempDirectory, tempName, tempFileName));
}
public void GetTempFilePathShouldThrowArgumentExceptionWhenArgumentsAreInvalid(
string expectedParameterName,
string expectedMessage,
Type expectedType,
PathBase path,
string extension)
{
Action getTempFilePath = () => path.GetTempFilePath(extension);
getTempFilePath.ShouldThrow <ArgumentException>()
.WithMessage(expectedMessage)
.Where(
exception => exception.ParamName == expectedParameterName,
"the parameter name should be of the problematic parameter")
.And.Should()
.BeOfType(expectedType);
}
