csv-writer/dist/test/csv-stringifiers/object.test.js

"use strict";
var __generator = (this && this.__generator) || function (thisArg, body) {
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};
Object.defineProperty(exports, "__esModule", { value: true });
var delimiter_1 = require("../helper/delimiter");
var index_1 = require("../../index");
var assert_1 = require("assert");
describe('ObjectCsvStringifier', function () {
    var records = [
        { FIELD_A: 'VALUE_A1', FIELD_B: 'VALUE_B1' },
        { FIELD_A: 'VALUE_A2', FIELD_B: 'VALUE_B2', OTHERS: { FIELD_C: 'VALUE_C2' } }
    ];
    describe('When field delimiter is comma', generateTestCases());
    describe('When field delimiter is semicolon', generateTestCases(';'));
    describe('When field delimiter is neither comma nor semicolon', function () {
        it('throws an exception', function () {
            assert_1.throws(function () {
                index_1.createObjectCsvStringifier({
                    header: ['FIELD_A', 'FIELD_B'],
                    fieldDelimiter: '/'
                });
            });
        });
    });
    describe('When record delimiter is neither LF nor CR+LF', function () {
        it('throws an exception', function () {
            assert_1.throws(function () {
                index_1.createObjectCsvStringifier({
                    header: ['FIELD_A', 'FIELD_B'],
                    recordDelimiter: '\r'
                });
            });
        });
    });
    describe('When records input is an iterable other than an array', function () {
        var stringifier = index_1.createObjectCsvStringifier({
            header: ['FIELD_A', 'FIELD_B']
        });
        function recordGenerator() {
            return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0: return [4 /*yield*/, records[0]];
                    case 1:
                        _a.sent();
                        return [4 /*yield*/, records[1]];
                    case 2:
                        _a.sent();
                        return [2 /*return*/];
                }
            });
        }
        it('converts the records into CSV', function () {
            assert_1.strictEqual(stringifier.stringifyRecords(recordGenerator()), 'VALUE_A1,VALUE_B1\nVALUE_A2,VALUE_B2\n');
        });
    });
    describe('When `alwaysQuote` flag is set', function () {
        var stringifier = index_1.createObjectCsvStringifier({
            header: [
                { id: 'FIELD_A', title: 'TITLE_A' },
                { id: 'FIELD_B', title: 'TITLE_B' }
            ],
            alwaysQuote: true
        });
        it('quotes all header fields', function () {
            assert_1.strictEqual(stringifier.getHeaderString(), '"TITLE_A","TITLE_B"\n');
        });
        it('quotes all data fields', function () {
            assert_1.strictEqual(stringifier.stringifyRecords(records), '"VALUE_A1","VALUE_B1"\n"VALUE_A2","VALUE_B2"\n');
        });
    });
    describe('When `headerIdDelimiter` is set', function () {
        var stringifier = index_1.createObjectCsvStringifier({
            header: [
                { id: 'FIELD_A', title: 'TITLE_A' },
                { id: 'OTHERS/FIELD_C', title: 'TITLE_C' }
            ],
            headerIdDelimiter: '/'
        });
        it('uses the title as is', function () {
            assert_1.strictEqual(stringifier.getHeaderString(), 'TITLE_A,TITLE_C\n');
        });
        it('picks up a value in nested objects', function () {
            assert_1.strictEqual(stringifier.stringifyRecords(records), 'VALUE_A1,\nVALUE_A2,VALUE_C2\n');
        });
    });
    function generateTestCases(fieldDelimiter) {
        var delim = delimiter_1.resolveDelimiterChar(fieldDelimiter);
        return function () {
            describe('header is specified with title', function () {
                var stringifier = index_1.createObjectCsvStringifier({
                    header: [
                        { id: 'FIELD_A', title: 'TITLE_A' },
                        { id: 'FIELD_B', title: 'TITLE_B' }
                    ],
                    fieldDelimiter: fieldDelimiter
                });
                it("returns a header line with field separated by \"" + delim + "\"", function () {
                    assert_1.strictEqual(stringifier.getHeaderString(), "TITLE_A" + delim + "TITLE_B\n");
                });
                it("converts given data records into CSV lines with field separated by \"" + delim + "\"", function () {
                    assert_1.strictEqual(stringifier.stringifyRecords(records), "VALUE_A1" + delim + "VALUE_B1\nVALUE_A2" + delim + "VALUE_B2\n");
                });
            });
            describe('header is specified without title', function () {
                var stringifier = index_1.createObjectCsvStringifier({
                    header: ['FIELD_A', 'FIELD_B'],
                    fieldDelimiter: fieldDelimiter
                });
                it('returns null for header line', function () {
                    assert_1.strictEqual(stringifier.getHeaderString(), null);
                });
                it("converts given data records into CSV lines with field separated by \"" + delim + "\"", function () {
                    assert_1.strictEqual(stringifier.stringifyRecords(records), "VALUE_A1" + delim + "VALUE_B1\nVALUE_A2" + delim + "VALUE_B2\n");
                });
            });
            describe('header columns are given with reverse order', function () {
                var stringifier = index_1.createObjectCsvStringifier({
                    header: [
                        { id: 'FIELD_B', title: 'TITLE_B' },
                        { id: 'FIELD_A', title: 'TITLE_A' }
                    ],
                    fieldDelimiter: fieldDelimiter
                });
                it("layouts fields with the order of headers given with field separated by \"" + delim + "\"", function () {
                    assert_1.strictEqual(stringifier.stringifyRecords(records), "VALUE_B1" + delim + "VALUE_A1\nVALUE_B2" + delim + "VALUE_A2\n");
                });
            });
        };
    }
});
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