parallel-disk-usage 0.21.1

Highly parallelized, blazing fast directory tree analyzer
Documentation 
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use parallel_disk_usage::bytes_format::BytesFormat;
use pretty_assertions::assert_eq;

macro_rules! test_case {
    ($name:ident -> $value:literal in $system:ident == $expected:literal) => {
        #[test]
        fn $name() {
            assert_eq!(BytesFormat::$system.format($value).to_string(), $expected);
        }
    };
}

test_case!(plain_number     ->                      65_535 in PlainNumber == "65535");

test_case!(metric_of_0      ->                           0 in MetricUnits ==    "0   ");
test_case!(metric_of_750    ->                         750 in MetricUnits ==  "750   ");
test_case!(metric_of_1000   ->                       1_000 in MetricUnits ==    "1.0K");
test_case!(metric_of_1024   ->                       1_024 in MetricUnits ==    "1.0K");
test_case!(metric_of_1500   ->                       1_500 in MetricUnits ==    "1.5K");
test_case!(metric_of_1750   ->                       1_750 in MetricUnits ==    "1.8K");
test_case!(metric_of_2000   ->                       2_000 in MetricUnits ==    "2.0K");
test_case!(metric_of_1mil   ->                   1_000_000 in MetricUnits ==    "1.0M");
test_case!(metric_of_2mil   ->                   2_000_000 in MetricUnits ==    "2.0M");
test_case!(metric_of_2mil9  ->                   2_900_000 in MetricUnits ==    "2.9M");
test_case!(metric_of_1bil   ->               1_000_000_000 in MetricUnits ==    "1.0G");
test_case!(metric_of_1trill ->           1_000_000_000_000 in MetricUnits ==    "1.0T");
test_case!(metric_of_1quard ->       1_000_000_000_000_000 in MetricUnits ==    "1.0P");
test_case!(metric_of_1quint ->   1_000_000_000_000_000_000 in MetricUnits == "1000.0P");

test_case!(binary_of_0      ->                           0 in BinaryUnits ==    "0   ");
test_case!(binary_of_750    ->                         750 in BinaryUnits ==  "750   ");
test_case!(binary_of_1000   ->                       1_000 in BinaryUnits == "1000   ");
test_case!(binary_of_1024   ->                       1_024 in BinaryUnits ==    "1.0K");
test_case!(binary_of_1500   ->                       1_500 in BinaryUnits ==    "1.5K");
test_case!(binary_of_1750   ->                       1_750 in BinaryUnits ==    "1.7K");
test_case!(binary_of_2000   ->                       2_000 in BinaryUnits ==    "2.0K");
test_case!(binary_of_1mil   ->                   1_000_000 in BinaryUnits ==  "976.6K");
test_case!(binary_of_2mil   ->                   2_000_000 in BinaryUnits ==    "1.9M");
test_case!(binary_of_2mil9  ->                   2_900_000 in BinaryUnits ==    "2.8M");
test_case!(binary_of_1bil   ->               1_000_000_000 in BinaryUnits ==  "953.7M");
test_case!(binary_of_1trill ->           1_000_000_000_000 in BinaryUnits ==  "931.3G");
test_case!(binary_of_1quard ->       1_000_000_000_000_000 in BinaryUnits ==  "909.5T");
test_case!(binary_of_1quint ->   1_000_000_000_000_000_000 in BinaryUnits ==  "888.2P");