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require "spec"
require "../support/string"
private LENGTH_UNITS = ->(magnitude : Int32, number : Float64) do
case magnitude
when -2, -1 then {-2, " cm"}
when .>=(4)
{3, " km"}
else
magnitude = Number.prefix_index(magnitude)
{magnitude, " #{Number.si_prefix(magnitude)}m"}
end
end
describe Number do
describe "#format" do
it { assert_prints 1.format, "1" }
it { assert_prints 12.format, "12" }
it { assert_prints 123.format, "123" }
it { assert_prints 1234.format, "1,234" }
it { assert_prints 1.format(decimal_places: 1), "1.0" }
it { assert_prints 1.format(decimal_places: 1, only_significant: true), "1.0" }
it { assert_prints 0.format(decimal_places: 1), "0.0" }
it { assert_prints 0.format(decimal_places: 1, only_significant: true), "0.0" }
it { assert_prints 0.0.format(decimal_places: 1), "0.0" }
it { assert_prints 0.0.format(decimal_places: 1, only_significant: true), "0.0" }
it { assert_prints 0.01.format(decimal_places: 1), "0.0" }
it { assert_prints 123.45.format, "123.45" }
it { assert_prints 123.45.format(separator: ','), "123,45" }
it { assert_prints 123.45.format(decimal_places: 3), "123.450" }
it { assert_prints 123.45.format(decimal_places: 3, only_significant: true), "123.45" }
it { assert_prints 123.4567.format(decimal_places: 3), "123.457" }
it { assert_prints 123_456.format, "123,456" }
it { assert_prints 123_456.format(delimiter: '.'), "123.456" }
it { assert_prints 123_456.789.format, "123,456.789" }
it { assert_prints 1e15.format(decimal_places: 7), "1,000,000,000,000,000.0000000" }
it { assert_prints 1e15.to_i64.format(decimal_places: 7), "1,000,000,000,000,000.0000000" }
it { assert_prints 1e-5.format(decimal_places: 7), "0.0000100" }
it { assert_prints 1e-4.format(decimal_places: 7), "0.0001000" }
it { assert_prints -1.format, "-1" }
it { assert_prints -12.format, "-12" }
it { assert_prints -123.format, "-123" }
it { assert_prints -1234.format, "-1,234" }
it { assert_prints -1.format(decimal_places: 1), "-1.0" }
it { assert_prints -1.format(decimal_places: 1, only_significant: true), "-1.0" }
it { assert_prints -0.0.format(decimal_places: 1), "-0.0" }
it { assert_prints -0.0.format(decimal_places: 1, only_significant: true), "-0.0" }
it { assert_prints -0.01.format(decimal_places: 1), "-0.0" }
it { assert_prints -123.45.format, "-123.45" }
it { assert_prints -123.45.format(separator: ','), "-123,45" }
it { assert_prints -123.45.format(decimal_places: 3), "-123.450" }
it { assert_prints -123.45.format(decimal_places: 3, only_significant: true), "-123.45" }
it { assert_prints -123.4567.format(decimal_places: 3), "-123.457" }
it { assert_prints -123_456.format, "-123,456" }
it { assert_prints -123_456.format(delimiter: '.'), "-123.456" }
it { assert_prints -123_456.789.format, "-123,456.789" }
it { assert_prints -1e15.format(decimal_places: 7), "-1,000,000,000,000,000.0000000" }
it { assert_prints -1e15.to_i64.format(decimal_places: 7), "-1,000,000,000,000,000.0000000" }
it { assert_prints -1e-5.format(decimal_places: 7), "-0.0000100" }
it { assert_prints -1e-4.format(decimal_places: 7), "-0.0001000" }
it { assert_prints Float64::MAX.format, "179,769,313,486,231,570,814,527,423,731,704,356,798,070,567,525,844,996,598,917,476,803,157,260,780,028,538,760,589,558,632,766,878,171,540,458,953,514,382,464,234,321,326,889,464,182,768,467,546,703,537,516,986,049,910,576,551,282,076,245,490,090,389,328,944,075,868,508,455,133,942,304,583,236,903,222,948,165,808,559,332,123,348,274,797,826,204,144,723,168,738,177,180,919,299,881,250,404,026,184,124,858,368.0" }
it { assert_prints Float64::MIN.format, "-179,769,313,486,231,570,814,527,423,731,704,356,798,070,567,525,844,996,598,917,476,803,157,260,780,028,538,760,589,558,632,766,878,171,540,458,953,514,382,464,234,321,326,889,464,182,768,467,546,703,537,516,986,049,910,576,551,282,076,245,490,090,389,328,944,075,868,508,455,133,942,304,583,236,903,222,948,165,808,559,332,123,348,274,797,826,204,144,723,168,738,177,180,919,299,881,250,404,026,184,124,858,368.0" }
it { assert_prints Float64::MAX.format(decimal_places: 0), "179,769,313,486,231,570,814,527,423,731,704,356,798,070,567,525,844,996,598,917,476,803,157,260,780,028,538,760,589,558,632,766,878,171,540,458,953,514,382,464,234,321,326,889,464,182,768,467,546,703,537,516,986,049,910,576,551,282,076,245,490,090,389,328,944,075,868,508,455,133,942,304,583,236,903,222,948,165,808,559,332,123,348,274,797,826,204,144,723,168,738,177,180,919,299,881,250,404,026,184,124,858,368" }
it { assert_prints Float64::MIN.format(decimal_places: 0), "-179,769,313,486,231,570,814,527,423,731,704,356,798,070,567,525,844,996,598,917,476,803,157,260,780,028,538,760,589,558,632,766,878,171,540,458,953,514,382,464,234,321,326,889,464,182,768,467,546,703,537,516,986,049,910,576,551,282,076,245,490,090,389,328,944,075,868,508,455,133,942,304,583,236,903,222,948,165,808,559,332,123,348,274,797,826,204,144,723,168,738,177,180,919,299,881,250,404,026,184,124,858,368" }
it { assert_prints Float64::MIN_POSITIVE.format, "0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000022250738585072014" }
it { assert_prints (-Float64::MIN_POSITIVE).format, "-0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000022250738585072014" }
it { assert_prints Float32::INFINITY.format, "Infinity" }
it { assert_prints (-Float32::INFINITY).format, "-Infinity" }
it { assert_prints Float32::NAN.format, "NaN" }
it { assert_prints Float64::INFINITY.format, "Infinity" }
it { assert_prints (-Float64::INFINITY).format, "-Infinity" }
it { assert_prints Float64::NAN.format, "NaN" }
end
describe "#humanize" do
it { assert_prints 0.humanize, "0.0" }
it { assert_prints 1.humanize, "1.0" }
it { assert_prints (-1).humanize, "-1.0" }
it { assert_prints 99.humanize, "99.0" }
it { assert_prints 100.humanize, "100" }
it { assert_prints 101.humanize, "101" }
it { assert_prints 123.humanize, "123" }
it { assert_prints 123.humanize(2), "120" }
it { assert_prints 999.humanize, "999" }
it { assert_prints 1000.humanize, "1.0k" }
it { assert_prints 1001.humanize, "1.0k" }
it { assert_prints 1234.humanize, "1.23k" }
it { assert_prints 12_345.humanize, "12.3k" }
it { assert_prints 12_345.humanize(2), "12k" }
it { assert_prints 1_234_567.humanize, "1.23M" }
it { assert_prints 1_234_567.humanize(5), "1.2346M" }
it { assert_prints 12_345_678.humanize(5), "12.346M" }
it { assert_prints 0.012_345.humanize, "12.3m" }
it { assert_prints 0.001_234_5.humanize, "1.23m" }
it { assert_prints 0.000_000_012_345.humanize, "12.3n" }
it { assert_prints 0.000_000_001.humanize, "1.0n" }
it { assert_prints 0.000_000_001_235.humanize, "1.24n" }
it { assert_prints 0.123_456_78.humanize, "123m" }
it { assert_prints 0.123_456_78.humanize(5), "123.46m" }
it { assert_prints 1_234.567_890_123.humanize(precision: 2, significant: false), "1.23k" }
it { assert_prints 123.456_789_012_3.humanize(precision: 2, significant: false), "123.46" }
it { assert_prints 12.345_678_901_23.humanize(precision: 2, significant: false), "12.35" }
it { assert_prints 1.234_567_890_123.humanize(precision: 2, significant: false), "1.23" }
it { assert_prints 0.123_456_789_012.humanize(precision: 2, significant: false), "123.46m" }
it { assert_prints 0.012_345_678_901.humanize(precision: 2, significant: false), "12.35m" }
it { assert_prints 0.001_234_567_890.humanize(precision: 2, significant: false), "1.23m" }
it { assert_prints 0.000_123_456_789.humanize(precision: 2, significant: false), "123.46µ" }
it { assert_prints 0.000_012_345_678.humanize(precision: 2, significant: false), "12.35µ" }
it { assert_prints 0.000_001_234_567.humanize(precision: 2, significant: false), "1.23µ" }
it { assert_prints 0.000_000_123_456.humanize(precision: 2, significant: false), "123.46n" }
it { assert_prints 0.000_000_012_345.humanize(precision: 2, significant: false), "12.34n" }
it { assert_prints 0.000_000_001_234.humanize(precision: 2, significant: false), "1.23n" }
it { assert_prints 0.000_000_000_123.humanize(precision: 2, significant: false), "123.00p" }
describe "using custom prefixes" do
it { assert_prints 1_420_000_000.humanize(prefixes: LENGTH_UNITS), "1,420,000 km" }
it { assert_prints 1_420.humanize(prefixes: LENGTH_UNITS), "1.42 km" }
it { assert_prints 1.humanize(prefixes: LENGTH_UNITS), "1.0 m" }
it { assert_prints 0.1.humanize(prefixes: LENGTH_UNITS), "10.0 cm" }
it { assert_prints 0.01.humanize(prefixes: LENGTH_UNITS), "1.0 cm" }
it { assert_prints 0.001.humanize(prefixes: LENGTH_UNITS), "1.0 mm" }
it { assert_prints 0.000_01.humanize(prefixes: LENGTH_UNITS), "10.0 µm" }
it { assert_prints 0.000_000_001.humanize(prefixes: LENGTH_UNITS), "1.0 nm" }
end
end
end
describe Int do
describe "#humanize_bytes" do
# default IEC
it { assert_prints 1024.humanize_bytes, "1.0kiB" }
it { assert_prints 0.humanize_bytes(format: Int::BinaryPrefixFormat::JEDEC), "0B" }
it { assert_prints 1.humanize_bytes(format: Int::BinaryPrefixFormat::JEDEC), "1B" }
it { assert_prints 999.humanize_bytes(format: Int::BinaryPrefixFormat::JEDEC), "999B" }
it { assert_prints 1000.humanize_bytes(format: Int::BinaryPrefixFormat::JEDEC), "0.98KB" }
it { assert_prints 1001.humanize_bytes(format: Int::BinaryPrefixFormat::JEDEC), "0.98KB" }
it { assert_prints 1014.humanize_bytes(format: Int::BinaryPrefixFormat::JEDEC), "0.99KB" }
it { assert_prints 1015.humanize_bytes(format: Int::BinaryPrefixFormat::JEDEC), "1.0KB" }
it { assert_prints 1024.humanize_bytes(format: Int::BinaryPrefixFormat::JEDEC), "1.0KB" }
it { assert_prints 1025.humanize_bytes(format: Int::BinaryPrefixFormat::JEDEC), "1.0KB" }
it { assert_prints 1026.humanize_bytes(format: Int::BinaryPrefixFormat::JEDEC), "1.01KB" }
it { assert_prints 2048.humanize_bytes(format: Int::BinaryPrefixFormat::JEDEC), "2.0KB" }
it { assert_prints 1536.humanize_bytes(format: Int::BinaryPrefixFormat::JEDEC), "1.5KB" }
it { assert_prints 524288.humanize_bytes(format: Int::BinaryPrefixFormat::JEDEC), "512KB" }
it { assert_prints 1048576.humanize_bytes(format: Int::BinaryPrefixFormat::JEDEC), "1.0MB" }
it { assert_prints 1073741824.humanize_bytes(format: Int::BinaryPrefixFormat::JEDEC), "1.0GB" }
it { assert_prints 1099511627776.humanize_bytes(format: Int::BinaryPrefixFormat::JEDEC), "1.0TB" }
it { assert_prints 1125899906842624.humanize_bytes(format: Int::BinaryPrefixFormat::JEDEC), "1.0PB" }
it { assert_prints 1152921504606846976.humanize_bytes(format: Int::BinaryPrefixFormat::JEDEC), "1.0EB" }
it { assert_prints 1024.humanize_bytes(format: Int::BinaryPrefixFormat::IEC), "1.0kiB" }
it { assert_prints 1073741824.humanize_bytes(format: Int::BinaryPrefixFormat::IEC), "1.0GiB" }
end
end
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