liza/test/store/DelimitedKeyTest.js

/**
 * Tests DelimitedKey
 *
 *  Copyright (C) 2010-2019 R-T Specialty, LLC.
 *
 *  This file is part of the Liza Data Collection Framework.
 *
 *  liza is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

'use strict';

const chai   = require( 'chai' );
const expect = chai.expect;

chai.use( require( 'chai-as-promised' ) );

const {
    DelimitedKey: Sut,
    MemoryStore:   Store,
    StoreMissError,
} = require( '../../' ).store;



describe( 'DelimitedKey', () =>
{
    describe( '#get', () =>
    {
        it( "retrieves nested store keys", () =>
        {
            const outer     = Store.use( Sut( '.' ) )();
            const middle    = Store();
            const inner     = Store();
            const inner_val = {};

            return expect(
                inner.add( 'foo', inner_val )
                    .then( () => middle.add( 'inner', inner ) )
                    .then( () => outer.add( 'middle', middle ) )
                    .then( () => outer.get( 'middle.inner.foo' ) )
            ).to.eventually.equal( inner_val );
        } );


        it( "fails on unknown nested key", () =>
        {
            const outer = Store.use( Sut( '.' ) )();
            const inner = Store();

            return expect(
                outer.add( 'inner', inner )
                    .then( () => outer.get( 'inner.foo.bar.baz' ) )
            ).to.eventually.be.rejectedWith( StoreMissError, /[^.]foo\b/ );
        } );


        // rather than blowing up attempting to split
        it( "fails gracefully on non-string key", () =>
        {
            return expect(
                Store.use( Sut( '.' ) )().get( undefined )
            ).to.eventually.be.rejectedWith( StoreMissError );
        } );
    } );


    describe( '#add', () =>
    {
        it( "sets nested store keys", () =>
        {
            const outer     = Store.use( Sut( '.' ) )();
            const inner     = Store();
            const inner_val = {};

            return expect(
                inner.add( 'foo', inner_val )
                    .then( () => outer.add( 'inner', inner ) )
                    .then( () => outer.add( 'inner.foo', inner_val ) )
                    .then( () => inner.get( 'foo' ) )
            ).to.eventually.equal( inner_val );
        } );


        it( "fails on unknown nested key", () =>
        {
            const outer = Store.use( Sut( '.' ) )();
            const inner = Store();

            return expect(
                outer.add( 'inner', inner )
                    .then( () => outer.add( 'inner.none.foo', "fail" ) )
            ).to.eventually.be.rejectedWith( StoreMissError, /[^.]none\b/ );
        } );
    } );
} );