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

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

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

describe('#concat', () => {
    it('should concatenate two xpath values', () => {
        const regex = 'concat(/simple/xpath/to/node, /simple/xpath/to/node)';
        assertStringValue('jaja', regex, 'jajajaja');
    });

    it('should concatenate two string values', () => {
        assertStringValue('concat("port", "manteau")', 'portmanteau');
    });

    it('should concatenate a string and an xpath value', () => {
        assertStringValue(
            'port',
            'concat(/simple/xpath/to/node, "manteau")',
            'portmanteau'
        );
    });

    it('should concatenate an xpath and a string value', () => {
        assertStringValue(
            'port',
            'concat(/simple/xpath/to/node, "manteau")',
            'portmanteau'
        );
    });

    it('should concatenate simple values', () => {
        assertStringValue('concat("a")', 'a');
        assertStringValue('concat("a", "b", "")', 'ab');
    });

    // Javarosa accepts an optional node-set argument for concat which deviates from native XPath. It also accepts no arguments.
    it('should concatenate nodeset', () => {
        const doc = initDoc(`
      <div id="testFunctionNodeset">
        <div id="testFunctionNodeset2">
          <p>1</p>
          <p>2</p>
          <p>3</p>
          <p>4</p>
        </div>
      </div>`);
        const node = doc.getElementById('testFunctionNodeset2');
        assertStringValue(node, null, "concat(*, 'a')", '1234a');
        assertStringValue(node, null, 'concat(*)', '1234');
        assertStringValue(node, null, 'concat()', '');
    });
});