forked from tj/commander.js
/
command.action.test.js
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/
command.action.test.js
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const commander = require('../');
// Test some behaviours of .action not covered in more specific tests.
test('when .action called then command passed to action', () => {
const actionMock = jest.fn();
const program = new commander.Command();
const cmd = program
.command('info')
.action(actionMock);
program.parse(['node', 'test', 'info']);
expect(actionMock).toHaveBeenCalledWith(cmd);
});
test('when .action called then program.args only contains args', () => {
// At one time program.args was being modified to contain the same args as the call to .action
// and so included the command as an extra and unexpected complex item in array.
const program = new commander.Command();
program
.command('info <file>')
.action(() => {});
program.parse(['node', 'test', 'info', 'my-file']);
expect(program.args).toEqual(['my-file']);
});
test('when .action called with extra arguments then extras also passed to action', () => {
// This is a new and undocumented behaviour for now.
// Might make this an error by default in future.
const actionMock = jest.fn();
const program = new commander.Command();
const cmd = program
.command('info <file>')
.action(actionMock);
program.parse(['node', 'test', 'info', 'my-file', 'a']);
expect(actionMock).toHaveBeenCalledWith('my-file', cmd, ['a']);
});
test('when .action on program with argument then action called', () => {
const actionMock = jest.fn();
const program = new commander.Command();
program
.arguments('<file>')
.action(actionMock);
program.parse(['node', 'test', 'my-file']);
expect(actionMock).toHaveBeenCalledWith('my-file', program);
});
// Changes made in #729 to call program action handler
test('when .action on program and no arguments then action called', () => {
const actionMock = jest.fn();
const program = new commander.Command();
program
.action(actionMock);
program.parse(['node', 'test']);
expect(actionMock).toHaveBeenCalledWith(program);
});
test('when .action on program with optional argument supplied then action called', () => {
const actionMock = jest.fn();
const program = new commander.Command();
program
.arguments('[file]')
.action(actionMock);
program.parse(['node', 'test', 'my-file']);
expect(actionMock).toHaveBeenCalledWith('my-file', program);
});
test('when .action on program without optional argument supplied then action called', () => {
const actionMock = jest.fn();
const program = new commander.Command();
program
.arguments('[file]')
.action(actionMock);
program.parse(['node', 'test']);
expect(actionMock).toHaveBeenCalledWith(undefined, program);
});
test('when .action on program with subcommand and program argument then program action called', () => {
const actionMock = jest.fn();
const program = new commander.Command();
program
.arguments('[file]')
.action(actionMock);
program
.command('subcommand');
program.parse(['node', 'test', 'a']);
expect(actionMock).toHaveBeenCalledWith('a', program);
});
test('when action is async then can await parseAsync', async() => {
let asyncFinished = false;
async function delay() {
await new Promise(resolve => setTimeout(resolve, 100));
asyncFinished = true;
};
const program = new commander.Command();
program
.action(delay);
const later = program.parseAsync(['node', 'test']);
expect(asyncFinished).toBe(false);
await later;
expect(asyncFinished).toBe(true);
});