58 lines
1.6 KiB
JavaScript
58 lines
1.6 KiB
JavaScript
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*
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* @flow-broken
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*/
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'use strict';
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jest
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.autoMockOff()
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.mock('ErrorUtils');
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var NavigationState = require('NavigationState');
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var VALID_PARENT_STATES = [
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{children: ['a','b'], index: 0},
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{children: [{key: 'a'},{key: 'b', foo: 123}], index: 1},
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{children: [{key: 'a'},{key: 'b'}], index: 0},
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{children: [{key: 'a'},{key: 'b'}], index: 2},
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];
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var INVALID_PARENT_STATES = [
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'foo',
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{},
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{children: [{key: 'a'}], index: 4},
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{children: [{key: 'a'}], index: -1},
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{children: [{key: 'a'}]},
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{children: {key: 'foo'}},
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12,
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null,
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undefined,
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[],
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];
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describe('NavigationState', () => {
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it('identifies parents correctly with getParent', () => {
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for (var i = 0; i <= VALID_PARENT_STATES.length; i++) {
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var navState = VALID_PARENT_STATES[0];
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expect(NavigationState.getParent(navState)).toBe(navState);
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}
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for (var i = 0; i <= INVALID_PARENT_STATES.length; i++) {
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var navState = INVALID_PARENT_STATES[0];
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expect(NavigationState.getParent(navState)).toBe(null);
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}
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});
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it('can get children', () => {
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var fooState = {key: 'foo'};
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var navState = {children: [{key: 'foobar'}, fooState], index: 0};
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expect(NavigationState.get(navState, 'foo')).toBe(fooState);
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expect(NavigationState.get(navState, 'missing')).toBe(null);
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});
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});
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