react-native/Libraries/NavigationExperimental/__tests__/NavigationStateUtils-test.js

157 lines
5.0 KiB
JavaScript

/**
* Copyright (c) 2015-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
'use strict';
jest.unmock('NavigationStateUtils');
const NavigationStateUtils = require('NavigationStateUtils');
describe('NavigationStateUtils', () => {
// Getters
it('gets route', () => {
const state = {index: 0, routes: [{key: 'a'}]};
expect(NavigationStateUtils.get(state, 'a')).toEqual({key: 'a'});
expect(NavigationStateUtils.get(state, 'b')).toBe(null);
});
it('gets route index', () => {
const state = {index: 1, routes: [{key: 'a'}, {key: 'b'}]};
expect(NavigationStateUtils.indexOf(state, 'a')).toBe(0);
expect(NavigationStateUtils.indexOf(state, 'b')).toBe(1);
expect(NavigationStateUtils.indexOf(state, 'c')).toBe(-1);
});
it('has a route', () => {
const state = {index: 0, routes: [{key: 'a'}, {key: 'b'}]};
expect(NavigationStateUtils.has(state, 'b')).toBe(true);
expect(NavigationStateUtils.has(state, 'c')).toBe(false);
});
// Push
it('pushes a route', () => {
const state = {index: 0, routes: [{key: 'a'}]};
const newState = {index: 1, routes: [{key: 'a'}, {key: 'b'}]};
expect(NavigationStateUtils.push(state, {key: 'b'})).toEqual(newState);
});
it('does not push duplicated route', () => {
const state = {index: 0, routes: [{key: 'a'}]};
expect(() => NavigationStateUtils.push(state, {key: 'a'})).toThrow();
});
// Pop
it('pops route', () => {
const state = {index: 1, routes: [{key: 'a'}, {key: 'b'}]};
const newState = {index: 0, routes: [{key: 'a'}]};
expect(NavigationStateUtils.pop(state)).toEqual(newState);
});
it('does not pop route if not applicable', () => {
const state = {index: 0, routes: [{key: 'a'}]};
expect(NavigationStateUtils.pop(state)).toBe(state);
});
// Jump
it('jumps to new index', () => {
const state = {index: 0, routes: [{key: 'a'}, {key: 'b'}]};
const newState = {index: 1, routes: [{key: 'a'}, {key: 'b'}]};
expect(NavigationStateUtils.jumpToIndex(state, 0)).toBe(state);
expect(NavigationStateUtils.jumpToIndex(state, 1)).toEqual(newState);
});
it('throws if jumps to invalid index', () => {
const state = {index: 0, routes: [{key: 'a'}, {key: 'b'}]};
expect(() => NavigationStateUtils.jumpToIndex(state, 2)).toThrow();
});
it('jumps to new key', () => {
const state = {index: 0, routes: [{key: 'a'}, {key: 'b'}]};
const newState = {index: 1, routes: [{key: 'a'}, {key: 'b'}]};
expect(NavigationStateUtils.jumpTo(state, 'a')).toBe(state);
expect(NavigationStateUtils.jumpTo(state, 'b')).toEqual(newState);
});
it('throws if jumps to invalid key', () => {
const state = {index: 0, routes: [{key: 'a'}, {key: 'b'}]};
expect(() => NavigationStateUtils.jumpTo(state, 'c')).toThrow();
});
it('move backwards', () => {
const state = {index: 1, routes: [{key: 'a'}, {key: 'b'}]};
const newState = {index: 0, routes: [{key: 'a'}, {key: 'b'}]};
expect(NavigationStateUtils.back(state)).toEqual(newState);
expect(NavigationStateUtils.back(newState)).toBe(newState);
});
it('move forwards', () => {
const state = {index: 0, routes: [{key: 'a'}, {key: 'b'}]};
const newState = {index: 1, routes: [{key: 'a'}, {key: 'b'}]};
expect(NavigationStateUtils.forward(state)).toEqual(newState);
expect(NavigationStateUtils.forward(newState)).toBe(newState);
});
// Replace
it('Replaces by key', () => {
const state = {index: 0, routes: [{key: 'a'}, {key: 'b'}]};
const newState = {index: 1, routes: [{key: 'a'}, {key: 'c'}]};
expect(
NavigationStateUtils.replaceAt(
state,
'b',
{key: 'c'},
)
).toEqual(newState);
});
it('Replaces by index', () => {
const state = {index: 0, routes: [{key: 'a'}, {key: 'b'}]};
const newState = {index: 1, routes: [{key: 'a'}, {key: 'c'}]};
expect(
NavigationStateUtils.replaceAtIndex(
state,
1,
{key: 'c'},
)
).toEqual(newState);
});
// Reset
it('Resets routes', () => {
const state = {index: 0, routes: [{key: 'a'}, {key: 'b'}]};
const newState = {index: 1, routes: [{key: 'x'}, {key: 'y'}]};
expect(
NavigationStateUtils.reset(
state,
[{key: 'x'}, {key: 'y'}],
)
).toEqual(newState);
expect(() => {
NavigationStateUtils.reset(state, []);
}).toThrow();
});
it('Resets routes with index', () => {
const state = {index: 0, routes: [{key: 'a'}, {key: 'b'}]};
const newState = {index: 0, routes: [{key: 'x'}, {key: 'y'}]};
expect(
NavigationStateUtils.reset(
state,
[{key: 'x'}, {key: 'y'}],
0,
)
).toEqual(newState);
expect(() => {
NavigationStateUtils.reset(state, [{key: 'x'}, {key: 'y'}], 100);
}).toThrow();
});
});