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var vows = require("vows"),
load = require("../load"),
assert = require("../assert");
var suite = vows.describe("d3.tsv");
suite.addBatch({
"tsv": {
topic: load("dsv/tsv").expression("d3.tsv").document(),
"on a sample file": {
topic: function(tsv) {
tsv("test/data/sample.tsv", this.callback);
},
"invokes the callback with the parsed tsv": function(tsv) {
assert.deepEqual(tsv, [{"Hello":42,"World":"\"fish\""}]);
},
"overrides the mime type to text/tab-separated-values": function(tsv) {
assert.equal(XMLHttpRequest._last._info.mimeType, "text/tab-separated-values");
}
},
"on a file that does not exist": {
topic: function(tsv) {
var callback = this.callback;
tsv("//does/not/exist.tsv", function(error, tsv) {
callback(null, tsv);
});
},
"invokes the callback with undefined when an error occurs": function(tsv) {
assert.isUndefined(tsv);
}
},
"parse": {
topic: function(tsv) {
return tsv.parse;
},
"returns an array of objects": function(parse) {
assert.deepEqual(parse("a\tb\tc\n1\t2\t3\n"), [{a: "1", b: "2", c: "3"}]);
},
"does not strip whitespace": function(parse) {
assert.deepEqual(parse("a\tb\tc\n 1\t 2\t3\n"), [{a: " 1", b: " 2", c: "3"}]);
},
"parses quoted values": function(parse) {
assert.deepEqual(parse("a\tb\tc\n\"1\"\t2\t3"), [{a: "1", b: "2", c: "3"}]);
assert.deepEqual(parse("a\tb\tc\n\"1\"\t2\t3\n"), [{a: "1", b: "2", c: "3"}]);
},
"parses quoted values with quotes": function(parse) {
assert.deepEqual(parse("a\n\"\"\"hello\"\"\""), [{a: "\"hello\""}]);
},
"parses quoted values with newlines": function(parse) {
assert.deepEqual(parse("a\n\"new\nline\""), [{a: "new\nline"}]);
assert.deepEqual(parse("a\n\"new\rline\""), [{a: "new\rline"}]);
assert.deepEqual(parse("a\n\"new\r\nline\""), [{a: "new\r\nline"}]);
},
"parses unix newlines": function(parse) {
assert.deepEqual(parse("a\tb\tc\n1\t2\t3\n4\t5\t\"6\"\n7\t8\t9"), [
{a: "1", b: "2", c: "3"},
{a: "4", b: "5", c: "6"},
{a: "7", b: "8", c: "9"}
]);
},
"parses mac newlines": function(parse) {
assert.deepEqual(parse("a\tb\tc\r1\t2\t3\r4\t5\t\"6\"\r7\t8\t9"), [
{a: "1", b: "2", c: "3"},
{a: "4", b: "5", c: "6"},
{a: "7", b: "8", c: "9"}
]);
},
"parses dos newlines": function(parse) {
assert.deepEqual(parse("a\tb\tc\r\n1\t2\t3\r\n4\t5\t\"6\"\r\n7\t8\t9"), [
{a: "1", b: "2", c: "3"},
{a: "4", b: "5", c: "6"},
{a: "7", b: "8", c: "9"}
]);
}
},
"parseRows": {
topic: function(tsv) {
return tsv.parseRows;
},
"returns an array of arrays": function(parse) {
assert.deepEqual(parse("a\tb\tc\n"), [["a", "b", "c"]]);
},
"parses quoted values": function(parse) {
assert.deepEqual(parse("\"1\"\t2\t3\n"), [["1", "2", "3"]]);
assert.deepEqual(parse("\"hello\""), [["hello"]]);
},
"parses quoted values with quotes": function(parse) {
assert.deepEqual(parse("\"\"\"hello\"\"\""), [["\"hello\""]]);
},
"parses quoted values with newlines": function(parse) {
assert.deepEqual(parse("\"new\nline\""), [["new\nline"]]);
assert.deepEqual(parse("\"new\rline\""), [["new\rline"]]);
assert.deepEqual(parse("\"new\r\nline\""), [["new\r\nline"]]);
},
"parses unix newlines": function(parse) {
assert.deepEqual(parse("a\tb\tc\n1\t2\t3\n4\t5\t\"6\"\n7\t8\t9"), [
["a", "b", "c"],
["1", "2", "3"],
["4", "5", "6"],
["7", "8", "9"]
]);
},
"parses mac newlines": function(parse) {
assert.deepEqual(parse("a\tb\tc\r1\t2\t3\r4\t5\t\"6\"\r7\t8\t9"), [
["a", "b", "c"],
["1", "2", "3"],
["4", "5", "6"],
["7", "8", "9"]
]);
},
"parses dos newlines": function(parse) {
assert.deepEqual(parse("a\tb\tc\r\n1\t2\t3\r\n4\t5\t\"6\"\r\n7\t8\t9"), [
["a", "b", "c"],
["1", "2", "3"],
["4", "5", "6"],
["7", "8", "9"]
]);
}
},
"format": {
topic: function(tsv) {
return tsv.format;
},
"takes an array of objects as input": function(format) {
assert.equal(format([{a: 1, b: 2, c: 3}]), "a\tb\tc\n1\t2\t3");
},
"escapes field names containing special characters": function(format) {
assert.equal(format([{"foo\tbar": true}]), "\"foo\tbar\"\ntrue");
},
"computes the union of all fields": function(format) {
assert.equal(format([
{a: 1},
{a: 1, b: 2},
{a: 1, b: 2, c: 3},
{b: 1, c: 2},
{c: 1}
]), "a\tb\tc\n1\t\t\n1\t2\t\n1\t2\t3\n\t1\t2\n\t\t1");
},
"orders field by first-seen": function(format) {
assert.equal(format([
{a: 1, b: 2},
{c: 3, b: 4},
{c: 5, a: 1, b: 2}
]), "a\tb\tc\n1\t2\t\n\t4\t3\n1\t2\t5");
}
},
"formatRows": {
topic: function(tsv) {
return tsv.formatRows;
},
"takes an array of arrays as input": function(format) {
assert.equal(format([["a", "b", "c"], ["1", "2", "3"]]), "a\tb\tc\n1\t2\t3");
},
"separates lines using unix newline": function(format) {
assert.equal(format([[], []]), "\n");
},
"does not strip whitespace": function(format) {
assert.equal(format([["a ", " b", "c"], ["1", "2", "3 "]]), "a \t b\tc\n1\t2\t3 ");
},
"does not quote simple values": function(format) {
assert.equal(format([["a"], [1]]), "a\n1");
},
"escapes double quotes": function(format) {
assert.equal(format([["\"fish\""]]), "\"\"\"fish\"\"\"");
},
"escapes unix newlines": function(format) {
assert.equal(format([["new\nline"]]), "\"new\nline\"");
},
"escapes tabs": function(format) {
assert.equal(format([["oxford\tcomma"]]), "\"oxford\tcomma\"");
},
"does not escape commas": function(format) {
assert.equal(format([["oxford,comma"]]), "oxford,comma");
}
}
}
});
suite.export(module);