--- /dev/null
+var optimist = require('../index');
+var test = require('tap').test;
+
+test('-', function (t) {
+ t.plan(5);
+ t.deepEqual(
+ fix(optimist.parse([ '-n', '-' ])),
+ { n: '-', _: [] }
+ );
+ t.deepEqual(
+ fix(optimist.parse([ '-' ])),
+ { _: [ '-' ] }
+ );
+ t.deepEqual(
+ fix(optimist.parse([ '-f-' ])),
+ { f: '-', _: [] }
+ );
+ t.deepEqual(
+ fix(optimist([ '-b', '-' ]).boolean('b').argv),
+ { b: true, _: [ '-' ] }
+ );
+ t.deepEqual(
+ fix(optimist([ '-s', '-' ]).string('s').argv),
+ { s: '-', _: [] }
+ );
+});
+
+function fix (obj) {
+ delete obj.$0;
+ return obj;
+}