/**
* Tests for arXiv XML parsing using fast-xml-parser
*/
import { test, expect } from 'vitest';
import { XMLParser } from 'fast-xml-parser';
test('XML parser handles arXiv feed with single entry', () => {
const xml = `<?xml version="1.0"?>
<feed xmlns="http://www.w3.org/2005/Atom">
<entry>
<id>http://arxiv.org/abs/2601.12345v1</id>
<title>Test Paper Title</title>
<summary>This is a test summary with important findings.</summary>
<published>2024-01-01T00:00:00Z</published>
</entry>
</feed>`;
const parser = new XMLParser({
ignoreAttributes: false,
attributeNamePrefix: '@_',
textNodeName: '#text',
});
const parsed = parser.parse(xml);
expect(parsed.feed).toBeTruthy();
expect(parsed.feed.entry).toBeTruthy();
expect(parsed.feed.entry.id).toBe('http://arxiv.org/abs/2601.12345v1');
expect(parsed.feed.entry.title).toBe('Test Paper Title');
expect(parsed.feed.entry.summary).toBe('This is a test summary with important findings.');
expect(parsed.feed.entry.published).toBe('2024-01-01T00:00:00Z');
});
test('XML parser handles arXiv feed with multiple entries', () => {
const xml = `<?xml version="1.0"?>
<feed xmlns="http://www.w3.org/2005/Atom">
<entry>
<id>http://arxiv.org/abs/2601.11111v1</id>
<title>First Paper</title>
<summary>First summary</summary>
<published>2024-01-01T00:00:00Z</published>
</entry>
<entry>
<id>http://arxiv.org/abs/2601.22222v1</id>
<title>Second Paper</title>
<summary>Second summary</summary>
<published>2024-01-02T00:00:00Z</published>
</entry>
</feed>`;
const parser = new XMLParser({
ignoreAttributes: false,
attributeNamePrefix: '@_',
textNodeName: '#text',
});
const parsed = parser.parse(xml);
expect(Array.isArray(parsed.feed.entry)).toBe(true);
expect(parsed.feed.entry.length).toBe(2);
expect(parsed.feed.entry[0].id).toBe('http://arxiv.org/abs/2601.11111v1');
expect(parsed.feed.entry[1].id).toBe('http://arxiv.org/abs/2601.22222v1');
});
test('XML parser handles entries with missing optional fields', () => {
const xml = `<?xml version="1.0"?>
<feed xmlns="http://www.w3.org/2005/Atom">
<entry>
<id>http://arxiv.org/abs/2601.12345v1</id>
<title>Test Paper</title>
</entry>
</feed>`;
const parser = new XMLParser({
ignoreAttributes: false,
attributeNamePrefix: '@_',
textNodeName: '#text',
});
const parsed = parser.parse(xml);
expect(parsed.feed.entry).toBeTruthy();
expect(parsed.feed.entry.id).toBe('http://arxiv.org/abs/2601.12345v1');
expect(parsed.feed.entry.title).toBe('Test Paper');
expect(parsed.feed.entry.summary).toBeUndefined();
expect(parsed.feed.entry.published).toBeUndefined();
});
test('Array vs single entry normalization', () => {
const singleXml = `<?xml version="1.0"?>
<feed xmlns="http://www.w3.org/2005/Atom">
<entry>
<id>http://arxiv.org/abs/2601.12345v1</id>
<title>Single Entry</title>
</entry>
</feed>`;
const multiXml = `<?xml version="1.0"?>
<feed xmlns="http://www.w3.org/2005/Atom">
<entry>
<id>http://arxiv.org/abs/2601.11111v1</id>
<title>First Entry</title>
</entry>
<entry>
<id>http://arxiv.org/abs/2601.22222v1</id>
<title>Second Entry</title>
</entry>
</feed>`;
const parser = new XMLParser({
ignoreAttributes: false,
attributeNamePrefix: '@_',
textNodeName: '#text',
});
const singleParsed = parser.parse(singleXml);
const multiParsed = parser.parse(multiXml);
// Test normalization logic
const singleEntries = Array.isArray(singleParsed.feed.entry)
? singleParsed.feed.entry
: [singleParsed.feed.entry].filter(Boolean);
const multiEntries = Array.isArray(multiParsed.feed.entry)
? multiParsed.feed.entry
: [multiParsed.feed.entry].filter(Boolean);
expect(Array.isArray(singleEntries)).toBe(true);
expect(singleEntries.length).toBe(1);
expect(Array.isArray(multiEntries)).toBe(true);
expect(multiEntries.length).toBe(2);
});
test('Handles empty feed gracefully', () => {
const xml = `<?xml version="1.0"?>
<feed xmlns="http://www.w3.org/2005/Atom">
</feed>`;
const parser = new XMLParser({
ignoreAttributes: false,
attributeNamePrefix: '@_',
textNodeName: '#text',
});
const parsed = parser.parse(xml);
expect(parsed.feed).toBeTruthy();
// Normalize empty entry
const entries = Array.isArray(parsed.feed.entry)
? parsed.feed.entry
: [parsed.feed.entry].filter(Boolean);
expect(Array.isArray(entries)).toBe(true);
expect(entries.length).toBe(0);
});
