var vows = require(“vows”),
load = require("../load"), assert = require("../assert");
var suite = vows.describe(“d3.format”);
suite.addBatch({
"format": { topic: load("format/format").expression("d3.format"), "returns a string": function(format) { assert.isString(format("d")(0)); }, "can zero fill": function(format) { var f = format("08d"); assert.strictEqual(f(0), "00000000"); assert.strictEqual(f(42), "00000042"); assert.strictEqual(f(42000000), "42000000"); assert.strictEqual(f(420000000), "420000000"); assert.strictEqual(f(-4), "-0000004"); assert.strictEqual(f(-42), "-0000042"); assert.strictEqual(f(-4200000), "-4200000"); assert.strictEqual(f(-42000000), "-42000000"); }, "can space fill": function(format) { var f = format("8d"); assert.strictEqual(f(0), " 0"); assert.strictEqual(f(42), " 42"); assert.strictEqual(f(42000000), "42000000"); assert.strictEqual(f(420000000), "420000000"); assert.strictEqual(f(-4), " -4"); assert.strictEqual(f(-42), " -42"); assert.strictEqual(f(-4200000), "-4200000"); assert.strictEqual(f(-42000000), "-42000000"); }, "can output fixed-point notation": function(format) { assert.strictEqual(format(".1f")(0.49), "0.5"); assert.strictEqual(format(".2f")(0.449), "0.45"); assert.strictEqual(format(".3f")(0.4449), "0.445"); assert.strictEqual(format(".5f")(0.444449), "0.44445"); assert.strictEqual(format(".1f")(100), "100.0"); assert.strictEqual(format(".2f")(100), "100.00"); assert.strictEqual(format(".3f")(100), "100.000"); assert.strictEqual(format(".5f")(100), "100.00000"); }, "can output general notation": function(format) { assert.strictEqual(format(".1g")(0.049), "0.05"); assert.strictEqual(format(".1g")(0.49), "0.5"); assert.strictEqual(format(".2g")(0.449), "0.45"); assert.strictEqual(format(".3g")(0.4449), "0.445"); assert.strictEqual(format(".5g")(0.444449), "0.44445"); assert.strictEqual(format(".1g")(100), "1e+2"); assert.strictEqual(format(".2g")(100), "1.0e+2"); assert.strictEqual(format(".3g")(100), "100"); assert.strictEqual(format(".5g")(100), "100.00"); assert.strictEqual(format(".5g")(100.2), "100.20"); assert.strictEqual(format(".2g")(0.002), "0.0020"); }, "can output exponent notation ": function(format) { var f = format("e"); assert.strictEqual(f(0), "0e+0"); assert.strictEqual(f(42), "4.2e+1"); assert.strictEqual(f(42000000), "4.2e+7"); assert.strictEqual(f(420000000), "4.2e+8"); assert.strictEqual(f(-4), "-4e+0"); assert.strictEqual(f(-42), "-4.2e+1"); assert.strictEqual(f(-4200000), "-4.2e+6"); assert.strictEqual(f(-42000000), "-4.2e+7"); }, "can output SI prefix notation": function(format) { var f = format("s"); assert.strictEqual(f(0), "0"); assert.strictEqual(f(1), "1"); assert.strictEqual(f(10), "10"); assert.strictEqual(f(100), "100"); assert.strictEqual(f(999.5), "999.5"); assert.strictEqual(f(999500), "999.5k"); assert.strictEqual(f(1000), "1k"); assert.strictEqual(f(1400), "1.4k"); assert.strictEqual(f(1500.5), "1.5005k"); assert.strictEqual(f(.000001), "1µ"); }, "can output SI prefix notation with appropriate rounding": function(format) { var f = format(".3s"); assert.strictEqual(f(0), "0.00"); assert.strictEqual(f(1), "1.00"); assert.strictEqual(f(10), "10.0"); assert.strictEqual(f(100), "100"); assert.strictEqual(f(999.5), "1.00k"); assert.strictEqual(f(999500), "1.00M"); assert.strictEqual(f(1000), "1.00k"); assert.strictEqual(f(1500.5), "1.50k"); assert.strictEqual(f(145500000), "146M"); assert.strictEqual(f(145999999.999999347), "146M"); assert.strictEqual(f(1e26), "100Y"); assert.strictEqual(f(.000001), "1.00µ"); assert.strictEqual(f(.009995), "0.0100"); var f = format(".4s"); assert.strictEqual(f(999.5), "999.5"); assert.strictEqual(f(999500), "999.5k"); assert.strictEqual(f(.009995), "9.995m"); }, "can output a currency": function(format) { var f = format("$"); assert.strictEqual(f(0), "$0"); assert.strictEqual(f(.042), "$0.042"); assert.strictEqual(f(.42), "$0.42"); assert.strictEqual(f(4.2), "$4.2"); assert.strictEqual(f(-.042), "-$0.042"); assert.strictEqual(f(-.42), "-$0.42"); assert.strictEqual(f(-4.2), "-$4.2"); }, "can output a currency with comma-grouping and sign": function(format) { var f = format("+$,.2f"); assert.strictEqual(f(0), "+$0.00"); assert.strictEqual(f(0.429), "+$0.43"); assert.strictEqual(f(-0.429), "-$0.43"); assert.strictEqual(f(-1), "-$1.00"); assert.strictEqual(f(1e4), "+$10,000.00"); }, "can output a currency with si-prefix notation": function(format) { var f = format("$.2s"); assert.strictEqual(f(0), "$0.0"); assert.strictEqual(f(2.5e5), "$250k"); assert.strictEqual(f(-2.5e8), "-$250M"); assert.strictEqual(f(2.5e11), "$250G"); }, "can output a percentage": function(format) { var f = format("%"); assert.strictEqual(f(0), "0%"); assert.strictEqual(f(.042), "4%"); assert.strictEqual(f(.42), "42%"); assert.strictEqual(f(4.2), "420%"); assert.strictEqual(f(-.042), "-4%"); assert.strictEqual(f(-.42), "-42%"); assert.strictEqual(f(-4.2), "-420%"); }, "can output a percentage with rounding and sign": function(format) { var f = format("+.2p"); assert.strictEqual(f(.00123), "+0.12%"); assert.strictEqual(f(.0123), "+1.2%"); assert.strictEqual(f(.123), "+12%"); assert.strictEqual(f(1.23), "+120%"); assert.strictEqual(f(-.00123), "-0.12%"); assert.strictEqual(f(-.0123), "-1.2%"); assert.strictEqual(f(-.123), "-12%"); assert.strictEqual(f(-1.23), "-120%"); }, "can round to significant digits": function(format) { assert.strictEqual(format(".2r")(0), "0.0"); assert.strictEqual(format(".1r")(0.049), "0.05"); assert.strictEqual(format(".1r")(-0.049), "-0.05"); assert.strictEqual(format(".1r")(0.49), "0.5"); assert.strictEqual(format(".1r")(-0.49), "-0.5"); assert.strictEqual(format(".2r")(0.449), "0.45"); assert.strictEqual(format(".3r")(0.4449), "0.445"); assert.strictEqual(format(".3r")(1.00), "1.00"); assert.strictEqual(format(".3r")(0.9995), "1.00"); assert.strictEqual(format(".5r")(0.444449), "0.44445"); assert.strictEqual(format("r")(123.45), "123.45"); assert.strictEqual(format(".1r")(123.45), "100"); assert.strictEqual(format(".2r")(123.45), "120"); assert.strictEqual(format(".3r")(123.45), "123"); assert.strictEqual(format(".4r")(123.45), "123.5"); assert.strictEqual(format(".5r")(123.45), "123.45"); assert.strictEqual(format(".6r")(123.45), "123.450"); assert.strictEqual(format(".1r")(.9), "0.9"); assert.strictEqual(format(".1r")(.09), "0.09"); assert.strictEqual(format(".1r")(.949), "0.9"); assert.strictEqual(format(".1r")(.0949), "0.09"); assert.strictEqual(format(".10r")(.9999999999), "0.9999999999"); assert.strictEqual(format(".15r")(.999999999999999), "0.999999999999999"); }, "can round very small numbers": function(format) { var f = format(".2r"); assert.strictEqual(f(1e-22), "0.00000000000000000000"); }, "can group thousands": function(format) { var f = format(",d"); assert.strictEqual(f(0), "0"); assert.strictEqual(f(42), "42"); assert.strictEqual(f(42000000), "42,000,000"); assert.strictEqual(f(420000000), "420,000,000"); assert.strictEqual(f(-4), "-4"); assert.strictEqual(f(-42), "-42"); assert.strictEqual(f(-4200000), "-4,200,000"); assert.strictEqual(f(-42000000), "-42,000,000"); }, "can group thousands and zero fill": function(format) { assert.strictEqual(format("01,d")(0), "0"); assert.strictEqual(format("01,d")(0), "0"); assert.strictEqual(format("02,d")(0), "00"); assert.strictEqual(format("03,d")(0), "000"); assert.strictEqual(format("05,d")(0), "0,000"); assert.strictEqual(format("08,d")(0), "0,000,000"); assert.strictEqual(format("013,d")(0), "0,000,000,000"); assert.strictEqual(format("021,d")(0), "0,000,000,000,000,000"); assert.strictEqual(format("013,d")(-42000000), "-0,042,000,000"); }, "can group thousands and zero fill with overflow": function(format) { assert.strictEqual(format("01,d")(1), "1"); assert.strictEqual(format("01,d")(1), "1"); assert.strictEqual(format("02,d")(12), "12"); assert.strictEqual(format("03,d")(123), "123"); assert.strictEqual(format("05,d")(12345), "12,345"); assert.strictEqual(format("08,d")(12345678), "12,345,678"); assert.strictEqual(format("013,d")(1234567890123), "1,234,567,890,123"); }, "can group thousands and space fill": function(format) { assert.strictEqual(format("1,d")(0), "0"); assert.strictEqual(format("1,d")(0), "0"); assert.strictEqual(format("2,d")(0), " 0"); assert.strictEqual(format("3,d")(0), " 0"); assert.strictEqual(format("5,d")(0), " 0"); assert.strictEqual(format("8,d")(0), " 0"); assert.strictEqual(format("13,d")(0), " 0"); assert.strictEqual(format("21,d")(0), " 0"); }, "can group thousands and space fill with overflow": function(format) { assert.strictEqual(format("1,d")(1), "1"); assert.strictEqual(format("1,d")(1), "1"); assert.strictEqual(format("2,d")(12), "12"); assert.strictEqual(format("3,d")(123), "123"); assert.strictEqual(format("5,d")(12345), "12,345"); assert.strictEqual(format("8,d")(12345678), "12,345,678"); assert.strictEqual(format("13,d")(1234567890123), "1,234,567,890,123"); }, "can group thousands with general notation": function(format) { var f = format(",g"); assert.strictEqual(f(0), "0"); assert.strictEqual(f(42), "42"); assert.strictEqual(f(42000000), "42,000,000"); assert.strictEqual(f(420000000), "420,000,000"); assert.strictEqual(f(-4), "-4"); assert.strictEqual(f(-42), "-42"); assert.strictEqual(f(-4200000), "-4,200,000"); assert.strictEqual(f(-42000000), "-42,000,000"); }, "can group thousands, space fill, and round to significant digits": function(format) { assert.strictEqual(format("10,.1f")(123456.49), " 123,456.5"); assert.strictEqual(format("10,.2f")(1234567.449), "1,234,567.45"); assert.strictEqual(format("10,.3f")(12345678.4449), "12,345,678.445"); assert.strictEqual(format("10,.5f")(123456789.444449), "123,456,789.44445"); assert.strictEqual(format("10,.1f")(123456), " 123,456.0"); assert.strictEqual(format("10,.2f")(1234567), "1,234,567.00"); assert.strictEqual(format("10,.3f")(12345678), "12,345,678.000"); assert.strictEqual(format("10,.5f")(123456789), "123,456,789.00000"); }, "can display integers in fixed-point notation": function(format) { assert.strictEqual(format("f")(42), "42"); }, "will not display non-integers in integer format": function(format) { assert.strictEqual(format("d")(4.2), ""); }, "unicode character": function(format) { assert.strictEqual(format("c")(9731), "☃"); }, "binary": function(format) { assert.strictEqual(format("b")(10), "1010"); }, "binary with prefix": function(format) { assert.strictEqual(format("#b")(10), "0b1010"); }, "octal": function(format) { assert.strictEqual(format("o")(10), "12"); }, "octal with prefix": function(format) { assert.strictEqual(format("#o")(10), "0o12"); }, "hexadecimal (lowercase)": function(format) { assert.strictEqual(format("x")(3735928559), "deadbeef"); }, "hexadecimal (lowercase) with prefix": function(format) { assert.strictEqual(format("#x")(3735928559), "0xdeadbeef"); }, "hexadecimal (uppercase)": function(format) { assert.strictEqual(format("X")(3735928559), "DEADBEEF"); }, "hexadecimal (uppercase) with prefix": function(format) { assert.strictEqual(format("#X")(3735928559), "0xDEADBEEF"); }, "fill respects prefix": function(format) { assert.strictEqual(format("#20x")(3735928559), " 0xdeadbeef"); }, "align left": function(format) { assert.strictEqual(format("<1,d")(0), "0"); assert.strictEqual(format("<1,d")(0), "0"); assert.strictEqual(format("<2,d")(0), "0 "); assert.strictEqual(format("<3,d")(0), "0 "); assert.strictEqual(format("<5,d")(0), "0 "); assert.strictEqual(format("<8,d")(0), "0 "); assert.strictEqual(format("<13,d")(0), "0 "); assert.strictEqual(format("<21,d")(0), "0 "); }, "align right": function(format) { assert.strictEqual(format(">1,d")(0), "0"); assert.strictEqual(format(">1,d")(0), "0"); assert.strictEqual(format(">2,d")(0), " 0"); assert.strictEqual(format(">3,d")(0), " 0"); assert.strictEqual(format(">5,d")(0), " 0"); assert.strictEqual(format(">8,d")(0), " 0"); assert.strictEqual(format(">13,d")(0), " 0"); assert.strictEqual(format(">21,d")(0), " 0"); }, "align center": function(format) { assert.strictEqual(format("^1,d")(0), "0"); assert.strictEqual(format("^1,d")(0), "0"); assert.strictEqual(format("^2,d")(0), " 0"); assert.strictEqual(format("^3,d")(0), " 0 "); assert.strictEqual(format("^5,d")(0), " 0 "); assert.strictEqual(format("^8,d")(0), " 0 "); assert.strictEqual(format("^13,d")(0), " 0 "); assert.strictEqual(format("^21,d")(0), " 0 "); }, "pad after sign": function(format) { assert.strictEqual(format("=+1,d")(0), "+0"); assert.strictEqual(format("=+1,d")(0), "+0"); assert.strictEqual(format("=+2,d")(0), "+0"); assert.strictEqual(format("=+3,d")(0), "+ 0"); assert.strictEqual(format("=+5,d")(0), "+ 0"); assert.strictEqual(format("=+8,d")(0), "+ 0"); assert.strictEqual(format("=+13,d")(0), "+ 0"); assert.strictEqual(format("=+21,d")(0), "+ 0"); }, "a space can denote positive numbers": function(format) { assert.strictEqual(format(" 1,d")(-1), "-1"); assert.strictEqual(format(" 1,d")(0), " 0"); assert.strictEqual(format(" 2,d")(0), " 0"); assert.strictEqual(format(" 3,d")(0), " 0"); assert.strictEqual(format(" 5,d")(0), " 0"); assert.strictEqual(format(" 8,d")(0), " 0"); assert.strictEqual(format(" 13,d")(0), " 0"); assert.strictEqual(format(" 21,d")(0), " 0"); }, "can format negative zero": function(format) { assert.strictEqual(format("1d")(-0), "-0"); assert.strictEqual(format("1f")(-0), "-0"); }, "supports \"n\" as an alias for \",g\"": function(format) { var f = format("n"); assert.strictEqual(f(.0042), "0.0042"); assert.strictEqual(f(.42), "0.42"); assert.strictEqual(f(0), "0"); assert.strictEqual(f(42), "42"); assert.strictEqual(f(42000000), "42,000,000"); assert.strictEqual(f(420000000), "420,000,000"); assert.strictEqual(f(-4), "-4"); assert.strictEqual(f(-42), "-42"); assert.strictEqual(f(-4200000), "-4,200,000"); assert.strictEqual(f(-42000000), "-42,000,000"); }, "unreasonable precision values are clamped to reasonable values": function(format) { assert.strictEqual(format(".30f")(0), "0.00000000000000000000"); assert.strictEqual(format(".0g")(1), "1"); assert.strictEqual(format(",.-1f")(12345), "12,345"); assert.strictEqual(format("+,.-1%")(123.45), "+12,345%"); } }
});
suite.export(module);