toolkit/javascript/d3/test/core/zip-test.js
author Nicolas Sauret <nicolas.sauret@iri.centrepompidou.fr>
Fri, 18 Apr 2014 14:31:58 +0200
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set up second level for navigation
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require("../env");
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require("../../d3");
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var vows = require("vows"),
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    assert = require("assert");
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var suite = vows.describe("d3.zip");
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suite.addBatch({
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  "zip": {
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    topic: function() {
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      return d3.zip;
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    },
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    "transposes a square matrix": function(zip) {
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      assert.deepEqual(d3.zip([1, 2], [3, 4]), [[1, 3], [2, 4]]);
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    },
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    "transposes a non-square matrix": function(zip) {
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      assert.deepEqual(d3.zip([1, 2, 3, 4, 5], [2, 4, 6, 8, 10]), [[1, 2], [2, 4], [3, 6], [4, 8], [5, 10]]);
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    },
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    "transposes a single-row matrix": function(zip) {
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      assert.deepEqual(d3.zip([1, 2, 3, 4, 5]), [[1], [2], [3], [4], [5]]);
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    },
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    "transposes an empty matrix": function(zip) {
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      assert.deepEqual(d3.zip(), []);
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    },
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    "ignores extra elements given an irregular matrix": function(zip) {
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      assert.deepEqual(d3.zip([1, 2], [3, 4], [5, 6, 7]), [[1, 3, 5], [2, 4, 6]]);
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    }
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  }
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});
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suite.export(module);