openrosa-xpath-evaluator/test/integration/openrosa-xpath/join.spec.js

Wrapper for browsers' XPath evaluator with added support for OpenRosa extensions.

const { initDoc, assertStringValue } = require('../helpers');

describe('#join()', () => {
    it('should join a list of strings with supplied separator', () => {
        initDoc(`
      <root>
        <item>one</item>
        <item>two</item>
        <item>three</item>
      </root>`);
        assertStringValue('join(" :: ", //item)', 'one :: two :: three');
    });

    it('should join list of strings', () => {
        assertStringValue(
            'join(" ", "This", "is", "a", "sentence.")',
            'This is a sentence.'
        );
        assertStringValue('join(" ## ")', '');
    });

    it('should join nodes', () => {
        const doc = initDoc(`
        <root id='xroot'>
          <item>1</item>
          <item>2</item>
          <item>3</item>
          <item>4</item>
        </root>`);
        assertStringValue('join(", ", //item)', '1, 2, 3, 4');
        assertStringValue('join(", ", /root/*)', '1, 2, 3, 4');

        const node = doc.getElementById('xroot');
        assertStringValue(node, null, 'join(", ", *)', '1, 2, 3, 4');
    });
});