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Contents
var vows = require("vows"),
_ = require("../../"),
load = require("../load"),
assert = require("../assert");
var suite = vows.describe("d3.min");
suite.addBatch({
"min": {
topic: load("arrays/min").expression("d3.min"),
"returns the least numeric value for numbers": function(min) {
assert.equal(min([1]), 1);
assert.equal(min([5, 1, 2, 3, 4]), 1);
assert.equal(min([20, 3]), 3);
assert.equal(min([3, 20]), 3);
},
"returns the least lexicographic value for strings": function(min) {
assert.equal(min(["c", "a", "b"]), "a");
assert.equal(min(["20", "3"]), "20");
assert.equal(min(["3", "20"]), "20");
},
"ignores null, undefined and NaN": function(min) {
var o = {valueOf: function() { return NaN; }};
assert.equal(min([NaN, 1, 2, 3, 4, 5]), 1);
assert.equal(min([o, 1, 2, 3, 4, 5]), 1);
assert.equal(min([1, 2, 3, 4, 5, NaN]), 1);
assert.equal(min([1, 2, 3, 4, 5, o]), 1);
assert.equal(min([10, null, 3, undefined, 5, NaN]), 3);
assert.equal(min([-1, null, -3, undefined, -5, NaN]), -5);
},
"compares heterogenous types as numbers": function(min) {
assert.strictEqual(min([20, "3"]), "3");
assert.strictEqual(min(["20", 3]), 3);
assert.strictEqual(min([3, "20"]), 3);
assert.strictEqual(min(["3", 20]), "3");
},
"returns undefined for empty array": function(min) {
assert.isUndefined(min([]));
assert.isUndefined(min([null]));
assert.isUndefined(min([undefined]));
assert.isUndefined(min([NaN]));
assert.isUndefined(min([NaN, NaN]));
},
"applies the optional accessor function": function(min) {
assert.equal(min([[1, 2, 3, 4, 5], [2, 4, 6, 8, 10]], function(d) { return _.max(d); }), 5);
assert.equal(min([1, 2, 3, 4, 5], function(d, i) { return i; }), 0);
}
}
});
suite.export(module);
Version data entries
4 entries across 4 versions & 2 rubygems