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yargs.test.ts
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yargs.test.ts
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/* global Deno */
import {
assertEquals,
assertMatch
} from 'https://deno.land/std/testing/asserts.ts'
import yargs from '../../deno.ts'
import { Arguments } from '../../deno-types.ts'
import { commands } from '../esm/fixtures/commands/index.mjs'
Deno.test('demandCommand(1) throw error if no command provided', () => {
let err: Error|null = null
yargs()
.demandCommand(1)
.parse(Deno.args, (_err: Error) => {
err = _err
})
assertMatch(err!.message, /Not enough non-option/)
})
// TODO: we should think of a way to support this functionality
Deno.test('guesses version # based on package.json', () => {
let output: string|null = null
yargs()
.parse('--version', (_err: Error, argv: Arguments, _output: string) => {
output = _output
})
assertMatch('' + output, /[0-9]+\.[0-9]+\.[0-9]+/)
})
// Handling of strings that look like numbers, see:
// https://github.com/yargs/yargs/issues/1758
Deno.test('does not drop .0 if positional is configured as string', async () => {
const argv = await yargs(['cmd', '33.0'])
.command('cmd [str]', 'a command', (yargs: any) => {
return yargs.positional('str', {
type: 'string'
})
}).parse() as Arguments
assertEquals(argv.str, '33.0')
})
Deno.test('hierarchy of commands', async () => {
const context = {
output: {value: 0},
};
yargs().command(commands).parse('a c 10 5', context);
assertEquals(context.output.value, 15);
})