spec.js

const {
	readJsonSync,
	readFileSync,
} = require('fs-extra');

const packageJson = require('../../package.json');
const editor = require('./');

describe('edit-package', () => {
	afterEach(async () => {
		await editor.reset();
	});

	it('reads the package data', async () => {
		expect(await editor.read()).to.deep.equal(packageJson);
	});

	it('should edit package.json file', async () => {
		await editor.write({ name: 'NOT_THE_PACKAGE_NAME' });
		expect(readJsonSync('package.json').name).to.equal('NOT_THE_PACKAGE_NAME');
	});

	it('should merge with existing package.json info', async () => {
		await editor.write({ name: 'NOT_THE_PACKAGE_NAME' });
		expect(readJsonSync('package.json').version).to.equal(packageJson.version);
	});

	it('reset restores original package.json', async () => {
		await editor.write({ name: 'NOT_THE_PACKAGE_NAME', newkey: 'THIS WAS NOT HERE BEFORE' });
		await editor.reset();

		const {
			name,
			newkey,
		} = readJsonSync('package.json');

		expect(name).not.to.equal('NOT_THE_PACKAGE_NAME');
		expect(name).to.equal(packageJson.name);
		expect(newkey).to.be.undefined;
	});

	it('continues from saved package file', async () => {
		await editor.write({ name: 'HAIM MISPARAIM' });
		await editor.write({ version: '0.0.0-test' });
		expect(readJsonSync('package.json').name).to.equal('HAIM MISPARAIM');
	});

	it('edits nested attributes', async () => {
		await editor.write({
			publishConfig: {
				tag: 'next',
				'tag-version-prefix': 'next-tag',
			},
		});
		await editor.write({
			publishConfig: {
				tag: 'after-next',
			},
		});
		expect(readJsonSync('package.json').publishConfig['tag-version-prefix']).to.equal('next-tag');
	});

	it('creates a beautified result', async () => {
		const contents = readFileSync('package.json').toString();
		expect(contents).to.include('\n');

		// new line after the opening {
		expect(contents[1]).to.equal('\n');

		// has indentation
		const line = contents.split('\n')[1];
		expect(line).to.endWith(line.trim());
		expect(line).to.not.equal(line.trim());

		// space after colon
		expect(contents.split('":')[1][0]).to.equal(' ');
	});
});