import { describe, expect, it } from 'vitest';
import { applyHtmlEdits, applyEditsToNormalizedContent } from '@/lib/edit/html-edit';
const HTML =
'\n\n\n\n\n\n\n\n';
describe('applyHtmlEdits (vendored pi edit core)', () => {
it('applies a single exact str_replace edit', () => {
const out = applyHtmlEdits(HTML, [
{ oldText: 'getElementById("strt")', newText: 'getElementById("go")' },
]);
expect(out).toContain('getElementById("go").addEventListener');
expect(out).not.toContain('strt');
// everything else preserved
expect(out).toContain('');
});
it('applies multiple non-overlapping edits in one call', () => {
const out = applyHtmlEdits(HTML, [
{ oldText: '', newText: '' },
{ oldText: '"strt"', newText: '"go"' },
]);
expect(out).toContain('>Start<');
expect(out).toContain('getElementById("go")');
});
it('throws a not-found error when oldText is absent', () => {
expect(() => applyHtmlEdits(HTML, [{ oldText: 'does-not-exist', newText: 'x' }])).toThrow(
/Could not find/i,
);
});
it('throws an ambiguity error when oldText is not unique', () => {
expect(() =>
applyHtmlEdits('x
\nx
\n', [{ oldText: 'x
', newText: 'y
' }]),
).toThrow(/occurrences|unique/i);
});
it('throws when an edit makes no change', () => {
expect(() => applyHtmlEdits(HTML, [{ oldText: 'Go', newText: 'Go' }])).toThrow(
/No changes|identical/i,
);
});
it('fuzzy-matches smart quotes against ASCII oldText', () => {
// content has a smart double-quote; oldText uses an ASCII quote
const src = '“hello”
\n';
const out = applyEditsToNormalizedContent(src, [{ oldText: '"hello"', newText: '"bye"' }], 'x');
expect(out.newContent).toContain('bye');
});
it('preserves CRLF line endings', () => {
const crlf = '\r\nold\r\n';
const out = applyHtmlEdits(crlf, [{ oldText: 'old', newText: 'new' }]);
expect(out).toContain('\r\n');
expect(out).toContain('new');
});
});