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help.longestArgumentTermLength.test.js
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help.longestArgumentTermLength.test.js
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const commander = require('../');
// These are tests of the Help class, not of the Command help.
// There is some overlap with the higher level Command tests (which predate Help).
describe('longestArgumentTermLength', () => {
test('when no arguments then returns zero', () => {
const program = new commander.Command();
const helper = new commander.Help();
expect(helper.longestArgumentTermLength(program, helper)).toEqual(0);
});
test('when has argument description then returns argument length', () => {
const program = new commander.Command();
program.argument('<wonder>', 'wonder description');
const helper = new commander.Help();
expect(helper.longestArgumentTermLength(program, helper)).toEqual(
'wonder'.length,
);
});
test('when has multiple argument descriptions then returns longest', () => {
const program = new commander.Command();
program.argument('<alpha>', 'x');
program.argument('<longest>', 'x');
program.argument('<beta>', 'x');
const helper = new commander.Help();
expect(helper.longestArgumentTermLength(program, helper)).toEqual(
'longest'.length,
);
});
});