excel4node/tests/image.test.js

Library to create Formatted Excel Files.

const tape = require('tape');
const _tape = require('tape-promise').default;
const test = _tape(tape);
const xl = require('../source/index');
const Picture = require('../source/lib/drawing/picture.js');
const path = require('path');
const fs = require('fs');

test('Test adding images', (t) => {
    var wb = new xl.Workbook();
    var ws = wb.addWorksheet('test 1');

    ws.addImage({
        path: path.resolve(__dirname, '../sampleFiles/thumbs-up.jpg'),
        type: 'picture',
        position: {
            type: 'absoluteAnchor',
            x: '1in',
            y: '2in'
        }
    });

    ws.addImage({
        path: path.resolve(__dirname, '../sampleFiles/logo.png'),
        type: 'picture',
        position: {
            type: 'oneCellAnchor',
            from: {
                col: 1,
                colOff: '0.5in',
                row: 1,
                rowOff: 0 
            }
        }
    });
     
    ws.addImage({
        image: fs.readFileSync(path.resolve(__dirname, '../sampleFiles/logo.png')),
        type: 'picture',
        fileName: 'logo.png',
        position: {
            type: 'twoCellAnchor',
            from: {
                col: 1,
                colOff: 0,
                row: 10,
                rowOff: 0
            },
            to: {
                col: 4,
                colOff: 0,
                row: 13,
                rowOff: 0
            }
        }
    });

    let pics = ws.drawingCollection.drawings;
    t.ok(pics[0] instanceof Picture && pics[1] instanceof Picture && pics[2] instanceof Picture, '3 new picture successfully created');
    
    try {
        ws.addImage({
            path: path.resolve(__dirname, '../sampleFiles/logo.png'),
            type: 'picture',
            position: {
                type: 'twoCellAnchor',
                from: {
                    col: 1,
                    colOff: 0,
                    row: 10,
                    rowOff: 0
                }
            }
        });
        t.notOk(pics[3] instanceof Picture, 'Adding twoCellAnchor picture without specifying to position should throw error');
    } catch (e) {
        t.ok(
            e instanceof TypeError,
            'Adding twoCellAnchor picture without specifying to position should throw error'
        );
    }

    t.end();
});