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import assert from 'node:assert/strict';
import { describe, it } from 'node:test';
import { extractFrontmatter, parseFrontmatter } from '../dist/index.js';
const bom = '\uFEFF';
describe('extractFrontmatter', () => {
it('handles YAML', () => {
const yaml = `\nfoo: bar\n`;
assert.equal(extractFrontmatter(`---${yaml}---`), yaml);
assert.equal(extractFrontmatter(`${bom}---${yaml}---`), yaml);
assert.equal(extractFrontmatter(`\n---${yaml}---`), yaml);
assert.equal(extractFrontmatter(`\n \n---${yaml}---`), yaml);
assert.equal(extractFrontmatter(`---${yaml}---\ncontent`), yaml);
assert.equal(extractFrontmatter(`${bom}---${yaml}---\ncontent`), yaml);
assert.equal(extractFrontmatter(`\n\n---${yaml}---\n\ncontent`), yaml);
assert.equal(extractFrontmatter(`\n \n---${yaml}---\n\ncontent`), yaml);
assert.equal(extractFrontmatter(` ---${yaml}---`), undefined);
assert.equal(extractFrontmatter(`---${yaml} ---`), undefined);
assert.equal(extractFrontmatter(`text\n---${yaml}---\n\ncontent`), undefined);
});
it('handles TOML', () => {
const toml = `\nfoo = "bar"\n`;
assert.equal(extractFrontmatter(`+++${toml}+++`), toml);
assert.equal(extractFrontmatter(`${bom}+++${toml}+++`), toml);
assert.equal(extractFrontmatter(`\n+++${toml}+++`), toml);
assert.equal(extractFrontmatter(`\n \n+++${toml}+++`), toml);
assert.equal(extractFrontmatter(`+++${toml}+++\ncontent`), toml);
assert.equal(extractFrontmatter(`${bom}+++${toml}+++\ncontent`), toml);
assert.equal(extractFrontmatter(`\n\n+++${toml}+++\n\ncontent`), toml);
assert.equal(extractFrontmatter(`\n \n+++${toml}+++\n\ncontent`), toml);
assert.equal(extractFrontmatter(` +++${toml}+++`), undefined);
assert.equal(extractFrontmatter(`+++${toml} +++`), undefined);
assert.equal(extractFrontmatter(`text\n+++${toml}+++\n\ncontent`), undefined);
});
});
describe('parseFrontmatter', () => {
it('works for YAML', () => {
const yaml = `\nfoo: bar\n`;
assert.deepEqual(parseFrontmatter(`---${yaml}---`), {
frontmatter: { foo: 'bar' },
rawFrontmatter: yaml,
content: '',
});
assert.deepEqual(parseFrontmatter(`${bom}---${yaml}---`), {
frontmatter: { foo: 'bar' },
rawFrontmatter: yaml,
content: bom,
});
assert.deepEqual(parseFrontmatter(`\n---${yaml}---`), {
frontmatter: { foo: 'bar' },
rawFrontmatter: yaml,
content: '\n',
});
assert.deepEqual(parseFrontmatter(`\n \n---${yaml}---`), {
frontmatter: { foo: 'bar' },
rawFrontmatter: yaml,
content: '\n \n',
});
assert.deepEqual(parseFrontmatter(`---${yaml}---\ncontent`), {
frontmatter: { foo: 'bar' },
rawFrontmatter: yaml,
content: '\ncontent',
});
assert.deepEqual(parseFrontmatter(`${bom}---${yaml}---\ncontent`), {
frontmatter: { foo: 'bar' },
rawFrontmatter: yaml,
content: `${bom}\ncontent`,
});
assert.deepEqual(parseFrontmatter(`\n\n---${yaml}---\n\ncontent`), {
frontmatter: { foo: 'bar' },
rawFrontmatter: yaml,
content: '\n\n\n\ncontent',
});
assert.deepEqual(parseFrontmatter(`\n \n---${yaml}---\n\ncontent`), {
frontmatter: { foo: 'bar' },
rawFrontmatter: yaml,
content: '\n \n\n\ncontent',
});
assert.deepEqual(parseFrontmatter(` ---${yaml}---`), {
frontmatter: {},
rawFrontmatter: '',
content: ` ---${yaml}---`,
});
assert.deepEqual(parseFrontmatter(`---${yaml} ---`), {
frontmatter: {},
rawFrontmatter: '',
content: `---${yaml} ---`,
});
assert.deepEqual(parseFrontmatter(`text\n---${yaml}---\n\ncontent`), {
frontmatter: {},
rawFrontmatter: '',
content: `text\n---${yaml}---\n\ncontent`,
});
});
it('works for TOML', () => {
const toml = `\nfoo = "bar"\n`;
assert.deepEqual(parseFrontmatter(`+++${toml}+++`), {
frontmatter: { foo: 'bar' },
rawFrontmatter: toml,
content: '',
});
assert.deepEqual(parseFrontmatter(`${bom}+++${toml}+++`), {
frontmatter: { foo: 'bar' },
rawFrontmatter: toml,
content: bom,
});
assert.deepEqual(parseFrontmatter(`\n+++${toml}+++`), {
frontmatter: { foo: 'bar' },
rawFrontmatter: toml,
content: '\n',
});
assert.deepEqual(parseFrontmatter(`\n \n+++${toml}+++`), {
frontmatter: { foo: 'bar' },
rawFrontmatter: toml,
content: '\n \n',
});
assert.deepEqual(parseFrontmatter(`+++${toml}+++\ncontent`), {
frontmatter: { foo: 'bar' },
rawFrontmatter: toml,
content: '\ncontent',
});
assert.deepEqual(parseFrontmatter(`${bom}+++${toml}+++\ncontent`), {
frontmatter: { foo: 'bar' },
rawFrontmatter: toml,
content: `${bom}\ncontent`,
});
assert.deepEqual(parseFrontmatter(`\n\n+++${toml}+++\n\ncontent`), {
frontmatter: { foo: 'bar' },
rawFrontmatter: toml,
content: '\n\n\n\ncontent',
});
assert.deepEqual(parseFrontmatter(`\n \n+++${toml}+++\n\ncontent`), {
frontmatter: { foo: 'bar' },
rawFrontmatter: toml,
content: '\n \n\n\ncontent',
});
assert.deepEqual(parseFrontmatter(` +++${toml}+++`), {
frontmatter: {},
rawFrontmatter: '',
content: ` +++${toml}+++`,
});
assert.deepEqual(parseFrontmatter(`+++${toml} +++`), {
frontmatter: {},
rawFrontmatter: '',
content: `+++${toml} +++`,
});
assert.deepEqual(parseFrontmatter(`text\n+++${toml}+++\n\ncontent`), {
frontmatter: {},
rawFrontmatter: '',
content: `text\n+++${toml}+++\n\ncontent`,
});
});
it('frontmatter style for YAML', () => {
const yaml = `\nfoo: bar\n`;
const parse1 = (style) => parseFrontmatter(`---${yaml}---`, { frontmatter: style }).content;
assert.deepEqual(parse1('preserve'), `---${yaml}---`);
assert.deepEqual(parse1('remove'), '');
assert.deepEqual(parse1('empty-with-spaces'), ` \n \n `);
assert.deepEqual(parse1('empty-with-lines'), `\n\n`);
const parse2 = (style) =>
parseFrontmatter(`\n \n---${yaml}---\n\ncontent`, { frontmatter: style }).content;
assert.deepEqual(parse2('preserve'), `\n \n---${yaml}---\n\ncontent`);
assert.deepEqual(parse2('remove'), '\n \n\n\ncontent');
assert.deepEqual(parse2('empty-with-spaces'), `\n \n \n \n \n\ncontent`);
assert.deepEqual(parse2('empty-with-lines'), `\n \n\n\n\n\ncontent`);
});
it('frontmatter style for TOML', () => {
const toml = `\nfoo = "bar"\n`;
const parse1 = (style) => parseFrontmatter(`+++${toml}+++`, { frontmatter: style }).content;
assert.deepEqual(parse1('preserve'), `+++${toml}+++`);
assert.deepEqual(parse1('remove'), '');
assert.deepEqual(parse1('empty-with-spaces'), ` \n \n `);
assert.deepEqual(parse1('empty-with-lines'), `\n\n`);
const parse2 = (style) =>
parseFrontmatter(`\n \n+++${toml}+++\n\ncontent`, { frontmatter: style }).content;
assert.deepEqual(parse2('preserve'), `\n \n+++${toml}+++\n\ncontent`);
assert.deepEqual(parse2('remove'), '\n \n\n\ncontent');
assert.deepEqual(parse2('empty-with-spaces'), `\n \n \n \n \n\ncontent`);
assert.deepEqual(parse2('empty-with-lines'), `\n \n\n\n\n\ncontent`);
});
});
|
