@pdfme/common/dist/node/__tests__/dynamicTemplate.test.js

TypeScript base PDF generator and React base UI. Open source, developed by the community, and completely free to use under the MIT license!

"use strict";
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var __importStar = (this && this.__importStar) || (function () {
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Object.defineProperty(exports, "__esModule", { value: true });
const fs_1 = require("fs");
const path = __importStar(require("path"));
const dynamicTemplate_js_1 = require("../src/dynamicTemplate.js");
const sansData = (0, fs_1.readFileSync)(path.join(__dirname, `/assets/fonts/NotoSans-Regular.ttf`));
const serifData = (0, fs_1.readFileSync)(path.join(__dirname, `/assets/fonts/NotoSerif-Regular.ttf`));
const getSampleFont = () => ({
    NotoSans: { fallback: true, data: sansData },
    NotoSerif: { data: serifData },
});
describe('getDynamicTemplate', () => {
    const height = 10;
    const aPositionY = 10;
    const bPositionY = 30;
    const padding = 10;
    const template = {
        schemas: [
            [
                {
                    name: 'a',
                    content: 'a',
                    type: 'a',
                    position: { x: 10, y: aPositionY },
                    width: 10,
                    height,
                },
                {
                    name: 'b',
                    content: 'b',
                    type: 'b',
                    position: { x: 10, y: bPositionY },
                    width: 10,
                    height,
                },
            ],
        ],
        basePdf: { width: 100, height: 100, padding: [padding, padding, padding, padding] },
    };
    const input = { a: 'a', b: 'b' };
    const options = { font: getSampleFont() };
    const _cache = new Map();
    const getDynamicTemplateArg = { template, input, options, _cache };
    const createGetDynamicTemplateArg = (increaseHeights, bHeight) => ({
        ...getDynamicTemplateArg,
        getDynamicHeights: async (value, args) => {
            if (args.schema.type === 'a') {
                return Promise.resolve(increaseHeights);
            }
            return Promise.resolve([bHeight || args.schema.height]);
        },
    });
    const verifyBasicStructure = (dynamicTemplate) => {
        expect(dynamicTemplate.schemas).toBeDefined();
        expect(Array.isArray(dynamicTemplate.schemas)).toBe(true);
        expect(dynamicTemplate.basePdf).toEqual({
            width: 100,
            height: 100,
            padding: [padding, padding, padding, padding],
        });
    };
    describe('Single page scenarios', () => {
        test('should handle no page break', async () => {
            const increaseHeights = [10, 10, 10, 10, 10];
            const dynamicTemplate = await (0, dynamicTemplate_js_1.getDynamicTemplate)(createGetDynamicTemplateArg(increaseHeights));
            verifyBasicStructure(dynamicTemplate);
            expect(dynamicTemplate.schemas.length).toBe(1);
            expect(dynamicTemplate.schemas[0][0].position.y).toEqual(aPositionY);
            expect(dynamicTemplate.schemas[0][0].name).toEqual('a');
            expect(dynamicTemplate.schemas[0][1].position.y).toEqual(increaseHeights.reduce((a, b) => a + b, 0) - height + bPositionY);
            expect(dynamicTemplate.schemas[0][1].name).toEqual('b');
        });
    });
    describe('Multiple page scenarios', () => {
        test('should handle page break with a on page 1 and b on page 2', async () => {
            const increaseHeights = [20, 20, 20, 20];
            const dynamicTemplate = await (0, dynamicTemplate_js_1.getDynamicTemplate)(createGetDynamicTemplateArg(increaseHeights));
            verifyBasicStructure(dynamicTemplate);
            expect(dynamicTemplate.schemas.length).toBe(2);
            expect(dynamicTemplate.schemas[0][0].position.y).toEqual(aPositionY);
            expect(dynamicTemplate.schemas[0][0].name).toEqual('a');
            expect(dynamicTemplate.schemas[0][1]).toBeUndefined();
            expect(dynamicTemplate.schemas[1][0].name).toEqual('b');
            expect(dynamicTemplate.schemas[1][0].position.y).toEqual(padding);
            expect(dynamicTemplate.schemas[1][1]).toBeUndefined();
        });
        test('should handle page break with a on page 1 and 2, b on page 2', async () => {
            const increaseHeights = [20, 20, 20, 20, 20];
            const dynamicTemplate = await (0, dynamicTemplate_js_1.getDynamicTemplate)(createGetDynamicTemplateArg(increaseHeights));
            verifyBasicStructure(dynamicTemplate);
            expect(dynamicTemplate.schemas.length).toBe(2);
            expect(dynamicTemplate.schemas[0][0].position.y).toEqual(aPositionY);
            expect(dynamicTemplate.schemas[0][0].name).toEqual('a');
            expect(dynamicTemplate.schemas[0][1]).toBeUndefined();
            expect(dynamicTemplate.schemas[1][0].position.y).toEqual(padding);
            expect(dynamicTemplate.schemas[1][0].name).toEqual('a');
            expect(dynamicTemplate.schemas[1][1].position.y).toEqual(increaseHeights.slice(3).reduce((a, b) => a + b, 0) - height + padding);
            expect(dynamicTemplate.schemas[1][1].name).toEqual('b');
        });
        test('should handle multiple page breaks', async () => {
            const increaseHeights = [50, 50, 50, 50, 50];
            const dynamicTemplate = await (0, dynamicTemplate_js_1.getDynamicTemplate)(createGetDynamicTemplateArg(increaseHeights));
            verifyBasicStructure(dynamicTemplate);
            expect(dynamicTemplate.schemas.length).toBe(5);
            // Verify 'a' elements
            for (let i = 0; i < 4; i++) {
                expect(dynamicTemplate.schemas[i][0]).toBeDefined();
                expect(dynamicTemplate.schemas[i][0].position.y).toEqual(i === 0 ? aPositionY : padding);
                expect(dynamicTemplate.schemas[i][0].height).toEqual(i === 3 ? 100 : 50);
                expect(dynamicTemplate.schemas[i][0].name).toEqual('a');
                expect(dynamicTemplate.schemas[i][1]).toBeUndefined();
            }
            // Verify 'b' element
            expect(dynamicTemplate.schemas[4][0]).toBeDefined();
            expect(dynamicTemplate.schemas[4][0].name).toEqual('b');
            expect(dynamicTemplate.schemas[4][0].position.y).toEqual(padding);
            expect(dynamicTemplate.schemas[4][0].height).toEqual(10);
        });
        test('should handle both a and b on next page', async () => {
            const increaseHeights = [80, 10, 10];
            const dynamicTemplate = await (0, dynamicTemplate_js_1.getDynamicTemplate)(createGetDynamicTemplateArg(increaseHeights));
            verifyBasicStructure(dynamicTemplate);
            expect(dynamicTemplate.schemas.length).toBe(2);
            // Check first page
            expect(dynamicTemplate.schemas[0][0]).toBeDefined();
            expect(dynamicTemplate.schemas[0][0].position.y).toEqual(aPositionY);
            expect(dynamicTemplate.schemas[0][0].height).toEqual(80);
            expect(dynamicTemplate.schemas[0][1]).toBeUndefined();
            // Check second page
            expect(dynamicTemplate.schemas[1][0]).toBeDefined();
            expect(dynamicTemplate.schemas[1][0].position.y).toEqual(padding);
            expect(dynamicTemplate.schemas[1][0].height).toEqual(20);
            expect(dynamicTemplate.schemas[1][1]).toBeDefined();
            expect(dynamicTemplate.schemas[1][1].position.y).toBeGreaterThanOrEqual(dynamicTemplate.schemas[1][0].position.y + dynamicTemplate.schemas[1][0].height);
        });
    });
    describe('Element height modifications', () => {
        test('should handle increased height for b', async () => {
            const increaseHeights = [10, 10, 10, 10, 10];
            const bHeight = 30;
            const dynamicTemplate = await (0, dynamicTemplate_js_1.getDynamicTemplate)(createGetDynamicTemplateArg(increaseHeights, bHeight));
            verifyBasicStructure(dynamicTemplate);
            expect(dynamicTemplate.schemas.length).toBe(2);
            // Check 'a' element
            expect(dynamicTemplate.schemas[0][0]).toBeDefined();
            expect(dynamicTemplate.schemas[0][0].position.y).toEqual(aPositionY);
            expect(dynamicTemplate.schemas[0][0].height).toEqual(50);
            expect(dynamicTemplate.schemas[0][0].name).toEqual('a');
            // Check 'b' element
            expect(dynamicTemplate.schemas[1][0]).toBeDefined();
            expect(dynamicTemplate.schemas[1][0].position.y).toEqual(padding);
            expect(dynamicTemplate.schemas[1][0].height).toEqual(bHeight);
            expect(dynamicTemplate.schemas[1][0].name).toEqual('b');
        });
    });
    describe('Edge cases', () => {
        test('should handle empty increase heights', async () => {
            const increaseHeights = [];
            const dynamicTemplate = await (0, dynamicTemplate_js_1.getDynamicTemplate)(createGetDynamicTemplateArg(increaseHeights));
            verifyBasicStructure(dynamicTemplate);
            expect(dynamicTemplate.schemas.length).toBe(1);
            expect(dynamicTemplate.schemas[0][0]).toBeDefined();
            expect(dynamicTemplate.schemas[0][0].name).toEqual('b');
            expect(dynamicTemplate.schemas[0][1]).toBeUndefined();
        });
        test('should handle very large increase heights', async () => {
            const increaseHeights = [1000, 1000];
            const dynamicTemplate = await (0, dynamicTemplate_js_1.getDynamicTemplate)(createGetDynamicTemplateArg(increaseHeights));
            verifyBasicStructure(dynamicTemplate);
            expect(dynamicTemplate.schemas.length).toBeGreaterThan(1);
        });
    });
});
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