gremlin-javascript/src/main/javascript/gremlin-javascript/test/unit/traversal-strategy-test.js

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 *  to you under the Apache License, Version 2.0 (the
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import assert from 'assert';
import { TraversalStrategies, OptionsStrategy, ConnectiveStrategy } from '../../lib/process/traversal-strategy.js';

describe('TraversalStrategies', function () {

  describe('#removeStrategy()', function () {
    it('should remove strategy', function () {
      const ts = new TraversalStrategies()
      ts.addStrategy(new ConnectiveStrategy());
      ts.addStrategy(new OptionsStrategy({x: 123}));
      assert.strictEqual(ts.strategies.length, 2);

      const c = new OptionsStrategy({x: 123});
      const os = ts.removeStrategy(c);
      assert.strictEqual(os.fqcn, c.fqcn);
      assert.strictEqual(ts.strategies.length, 1);

      ts.removeStrategy(new ConnectiveStrategy());
      assert.strictEqual(ts.strategies.length, 0);
    });

    it('should not find anything to remove', function () {
      const ts = new TraversalStrategies()
      ts.addStrategy(new OptionsStrategy({x: 123}));
      assert.strictEqual(ts.strategies.length, 1);
      ts.removeStrategy(new ConnectiveStrategy());
      assert.strictEqual(ts.strategies.length, 1);
    });
  });
});