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require("../env");
require("../../d3");
var vows = require("vows"),
assert = require("assert");
var suite = vows.describe("d3.format");
suite.addBatch({
"format": {
topic: function() {
return 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(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 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")(0.49), "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");
},
"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");
},
"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), "");
},
"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");
}
}
});
suite.export(module);