app/addons/documents/__tests__/changes-stores.test.js

// Licensed under the Apache License, Version 2.0 (the "License"); you may not
// use this file except in compliance with the License. You may obtain a copy of
// the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations under
// the License.

import FauxtonAPI from "../../../core/api";
import Stores from "../changes/stores";
import utils from "../../../../test/mocha/testUtils";
FauxtonAPI.router = new FauxtonAPI.Router([]);

const assert = utils.assert;

describe('ChangesStore', () => {

  afterEach(() => {
    Stores.changesStore.reset();
  });

  it('addFilter() adds item in store', () => {
    const filter = 'My filter';
    Stores.changesStore.addFilter(filter);
    const filters = Stores.changesStore.getFilters();
    assert.ok(filters.length === 1);
    assert.ok(filters[0] === filter);
  });

  it('removeFilter() removes item from store', () => {
    const filter1 = 'My filter 1';
    const filter2 = 'My filter 2';
    Stores.changesStore.addFilter(filter1);
    Stores.changesStore.addFilter(filter2);
    Stores.changesStore.removeFilter(filter1);

    const filters = Stores.changesStore.getFilters();
    assert.ok(filters.length === 1);
    assert.ok(filters[0] === filter2);
  });

  it('hasFilter() finds item in store', () => {
    const filter = 'My filter';
    Stores.changesStore.addFilter(filter);
    assert.ok(Stores.changesStore.hasFilter(filter) === true);
  });

  it('getDatabaseName() returns database name', () => {
    const dbName = 'hoopoes';
    Stores.changesStore.initChanges({ databaseName: dbName });
    assert.equal(Stores.changesStore.getDatabaseName(), dbName);

    Stores.changesStore.reset();
    assert.equal(Stores.changesStore.getDatabaseName(), '');
  });

  it("getChanges() should return a subset if there are a lot of changes", () => {

    // to keep the test speedy, we override the default max value
    const maxChanges = 10;
    const changes = [];
    _.times(maxChanges + 10, (i) => {
      changes.push({ id: 'doc_' + i, seq: 1, changes: {}});
    });
    Stores.changesStore.initChanges({ databaseName: "test" });
    Stores.changesStore.setMaxChanges(maxChanges);

    const seqNum = 123;
    Stores.changesStore.updateChanges(seqNum, changes);

    const results = Stores.changesStore.getChanges();
    assert.equal(maxChanges, results.length);
  });

  it("tracks last sequence number", () => {
    assert.equal(null, Stores.changesStore.getLastSeqNum());

    const seqNum = 123;
    Stores.changesStore.updateChanges(seqNum, []);

    // confirm it's been stored
    assert.equal(seqNum, Stores.changesStore.getLastSeqNum());
  });

});