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import * as ohm from '..';import test from 'ava';
const g = ohm.grammar(`  G {    Greeting = interjection "," name "!"    interjection = "Hello" | "Hi" | "Ahoy-hoy"    name = upper letter+  }`);const s = g.createSemantics().addOperation('getName', {  Greeting(interj, comma, name, punc) {    return name.sourceString;  }});
test('basic matching', t => {  const matchResult = g.match('Ahoy-hoy, Alexander!');  t.is(s(matchResult)['getName'](), 'Alexander');});
test('incremental matching', t => {  const matcher = g.matcher();  matcher.setInput('foo');  matcher.replaceInputRange(0, 1, 'g').replaceInputRange(1, 3, 'ah');  t.is(matcher.getInput(), 'gah');  t.is(matcher.match('Greeting').succeeded(), false);});
test('pexprs - #390', t => {  const {interjection, name, any, end} = g.rules;
  if (interjection.body instanceof ohm.pexprs.Alt) {    t.true(interjection.body.terms[0] instanceof ohm.pexprs.Terminal);  } else {    t.fail('expected an Alt');  }
  if (name.body instanceof ohm.pexprs.Seq) {    const plus = name.body.factors[1];    t.true(plus instanceof ohm.pexprs.Iter);    t.true(plus instanceof ohm.pexprs.Plus);  } else {    t.fail('expected a Seq');  }
  t.true(any.body === ohm.pexprs.any, 'any should be a singleton');  t.true(end.body === ohm.pexprs.end, 'end should be a singleton');});