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Add some Fakes for easier interaction snapshot testing

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Summary:
`Fake` components are simplified so snapshots are stable and reliable, and references are exported
so that interactions like `onRefresh` and `onScroll` can be called manually. Currently there is just
one global export for each class, but we may change this in the future if we need to manage multiple
`Fake`s of the same type in one render tree.

Right now these must be installed explicitly, but I might move them into `__mocks__` folders if it
seems reasonable to make them defaults.

Reviewed By: cpojer

Differential Revision: D4318207

fbshipit-source-id: 62802353a98b09ca1c80804ef7201ea63091f94a
This commit is contained in:
Spencer Ahrens
2016-12-20 15:44:54 -08:00
committed by Facebook Github Bot
parent ab89b7195d
commit 5537055bf8
5 changed files with 126 additions and 8 deletions
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10
jest/setup.js
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@@ -33,17 +33,13 @@ jest
.mock('TextInput', () => mockComponent('TextInput'))
.mock('Modal', () => mockComponent('Modal'))
.mock('View', () => mockComponent('View'))
.mock('ScrollView', () => mockComponent('ScrollView'))
.mock('RefreshControl', () => require.requireMock('RefreshControlMock'))
.mock('ScrollView', () => require.requireMock('ScrollViewMock'))
.mock(
'ActivityIndicator',
() => mockComponent('ActivityIndicator'),
)
.mock('ListView', () => {
const RealListView = require.requireActual('ListView');
const ListView = mockComponent('ListView');
ListView.prototype.render = RealListView.prototype.render;
return ListView;
})
.mock('ListView', () => require.requireMock('ListViewMock'))
.mock('ListViewDataSource', () => {
const DataSource = require.requireActual('ListViewDataSource');
DataSource.prototype.toJSON = function() {