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Versions: 25
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Stored size: 1.49 KB
Contents
require("../env");
require("../../d3");
var vows = require("vows"),
assert = require("assert");
var suite = vows.describe("d3.median");
suite.addBatch({
"median": {
topic: function() {
return d3.median;
},
"returns the median value for numbers": function(median) {
assert.equal(median([1]), 1);
assert.equal(median([5, 1, 2, 3, 4]), 3);
assert.equal(median([20, 3]), 11.5);
assert.equal(median([3, 20]), 11.5);
},
"ignores null, undefined and NaN": function(median) {
assert.equal(median([NaN, 1, 2, 3, 4, 5]), 3);
assert.equal(median([1, 2, 3, 4, 5, NaN]), 3);
assert.equal(median([10, null, 3, undefined, 5, NaN]), 5);
},
"can handle large numbers without overflowing": function(median) {
assert.equal(median([Number.MAX_VALUE, Number.MAX_VALUE]), Number.MAX_VALUE);
assert.equal(median([-Number.MAX_VALUE, -Number.MAX_VALUE]), -Number.MAX_VALUE);
},
"returns undefined for empty array": function(median) {
assert.isUndefined(median([]));
assert.isUndefined(median([null]));
assert.isUndefined(median([undefined]));
assert.isUndefined(median([NaN]));
assert.isUndefined(median([NaN, NaN]));
},
"applies the optional accessor function": function(median) {
assert.equal(d3.median([[1, 2, 3, 4, 5], [2, 4, 6, 8, 10]], function(d) { return d3.median(d); }), 4.5);
assert.equal(d3.median([1, 2, 3, 4, 5], function(d, i) { return i; }), 2);
}
}
});
suite.export(module);
Version data entries
25 entries across 25 versions & 1 rubygems