import opts.unknown tests from mini mist

- disable unknown args return test

test/unknown.js

@@ -0,0 +1,80 @@
+const test = require('tape');
+const fn = require('../lib');
+
+test('boolean and alias is not unknown', t => {
+	const unknown = [];
+	const unknownFn = arg => (unknown.push(arg), false);
+	const aliased = ['-h', 'true', '--derp', 'true'];
+	const regular = ['--herp', 'true', '-d', 'true'];
+	const opts = {
+		alias: { h: 'herp' },
+		boolean: 'h',
+		unknown: unknownFn
+	};
+	const aliasedArgv = fn(aliased, opts);
+	const propertyArgv = fn(regular, opts);
+
+	t.same(unknown, ['--derp', '-d']);
+	t.end();
+});
+
+// test('flag boolean true any double hyphen argument is not unknown', t => {
+// 	const unknown = [];
+// 	const unknownFn = arg => (unknown.push(arg),false);
+
+// 	const argv = fn(['--honk', '--tacos=good', 'cow', '-p', '55'], { boolean: true, unknown: unknownFn });
+// 	t.same(unknown, ['--tacos', 'cow', '-p']);
+// 	t.same(argv, { honk: true, _: [] });
+// 	t.end();
+// });
+
+test('string and alias is not unknown', t => {
+	const unknown = [];
+	const unknownFn = arg => (unknown.push(arg), false);
+	// const unknownFn = arg => console.log('unknown arg', arg);
+
+	const aliased = ['-h', 'hello', '--derp', 'goodbye'];
+	const regular = ['--herp', 'hello', '-d', 'moon'];
+	const opts = {
+		alias: { h: 'herp' },
+		string: 'h',
+		unknown: unknownFn
+	};
+	const aliasedArgv = fn(aliased, opts);
+	const propertyArgv = fn(regular, opts);
+
+	t.same(unknown, ['--derp', '-d']);
+	t.end();
+});
+
+test('default and alias is not unknown', t => {
+	const unknown = [];
+	const unknownFn = arg => (unknown.push(arg), false);
+
+	const aliased = ['-h', 'hello'];
+	const regular = ['--herp', 'hello'];
+	const opts = {
+		default: { h: 'bar' },
+		alias: { h: 'herp' },
+		unknown: unknownFn
+	};
+	const aliasedArgv = fn(aliased, opts);
+	const propertyArgv = fn(regular, opts);
+
+	t.same(unknown, []);
+	t.end();
+	unknownFn(); // exercise fn for 100% coverage
+});
+
+// test('value following -- is not unknown', t => {
+// 	const unknown = [];
+// 	const unknownFn = arg => (unknown.push(arg),false);
+
+// 	const aliased = [ '--bad', '--', 'good', 'arg' ];
+// 	const opts = { '--': true, unknown: unknownFn };
+// 	const argv = fn(aliased, opts);
+
+// 	t.same(unknown, ['--bad']);
+// 	t.same(argv, { '--': ['good', 'arg'], '_': [] });
+// 	t.end();
+// });