cycles.js

'use strict';

var _avaSpec = require('ava-spec');

var jssm = require('../../../build/jssm.es5.js'),
    sm = jssm.sm;
/* eslint-disable max-len */

(0, _avaSpec.describe)('cycle strategies', async function (_it) {

  var is_v = function is_v(str, v, it) {
    return it(_avaSpec.test, function (t) {
      return t.deepEqual(v, jssm.parse(str));
    });
  };

  (0, _avaSpec.describe)('basic cycle', async function (it) {
    is_v('[a b c] -> +1;', [{ from: ['a', 'b', 'c'], key: 'transition', se: { kind: '->', to: { key: 'cycle', value: 1 } } }], it);
  });

  (0, _avaSpec.describe)('negative cycle', async function (it) {
    is_v('[a b c] -> -1;', [{ from: ['a', 'b', 'c'], key: 'transition', se: { kind: '->', to: { key: 'cycle', value: -1 } } }], it);
  });

  (0, _avaSpec.describe)('nullary cycle', async function (it) {
    is_v('[a b c] -> +0;', [{ from: ['a', 'b', 'c'], key: 'transition', se: { kind: '->', to: { key: 'cycle', value: 0 } } }], it);
  });

  (0, _avaSpec.describe)('wide cycle', async function (it) {
    is_v('[a b c] -> +2;', [{ from: ['a', 'b', 'c'], key: 'transition', se: { kind: '->', to: { key: 'cycle', value: 2 } } }], it);
  });
  /*
    describe('full parse', async it => {
      it('[a b] -> +1;', t => t.deepEqual(
        sm`[a b] -> +1;`.list_edges(),
        [{"from":"a","to":"b","kind":"legal","forced_only":false,"main_path":false},{"from":"b","to":"a","kind":"legal","forced_only":false,"main_path":false}]
      ));
    });
  */
  (0, _avaSpec.describe)('illegal fractional cycle throws', async function (it) {
    it('throws', function (t) {
      return t.throws(function () {
        jssm.parse('[a b c] -> +2.5;');
      });
    });
  });
});
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