21 строка
597 B
JavaScript
21 строка
597 B
JavaScript
var vows = require("vows"),
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load = require("../load"),
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assert = require("assert");
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var suite = vows.describe("d3.geo.distance");
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suite.addBatch({
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"distance": {
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topic: load("geo/distance").expression("d3.geo.distance"),
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"computes the great-arc distance": function(distance) {
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assert.equal(distance([0, 0], [0, 0]), 0);
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assert.inDelta(distance([118 + 24 / 60, 33 + 57 / 60], [ 73 + 47 / 60, 40 + 38 / 60]), 3973 / 6371, .5);
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},
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"small distance": function(distance) {
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assert.isTrue(distance([0, 0], [0, 1e-12]) > 0);
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}
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}
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});
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suite.export(module);
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