Mailspring/spec/component-registry-spec.coffee
2015-10-01 21:39:44 -07:00

101 lines
4.3 KiB
CoffeeScript

React = require 'react'
ComponentRegistry = require '../src/component-registry'
class TestComponent extends React.Component
@displayName: 'TestComponent'
constructor: ->
class TestComponentNotSameIdentity extends React.Component
@displayName: 'TestComponent'
constructor: ->
class TestComponentNoDisplayName extends React.Component
constructor: ->
class AComponent extends React.Component
@displayName: 'A'
class BComponent extends React.Component
@displayName: 'B'
class CComponent extends React.Component
@displayName: 'C'
class DComponent extends React.Component
@displayName: 'D'
class EComponent extends React.Component
@displayName: 'E'
class FComponent extends React.Component
@displayName: 'F'
describe 'ComponentRegistry', ->
beforeEach ->
ComponentRegistry._clear()
describe 'register', ->
it 'throws an exception if passed a non-component', ->
expect(-> ComponentRegistry.register(null)).toThrow()
expect(-> ComponentRegistry.register("cheese")).toThrow()
it 'returns itself', ->
expect(ComponentRegistry.register(TestComponent, {role: "bla"})).toBe(ComponentRegistry)
it 'does allow the exact same component to be redefined with different role/locations', ->
ComponentRegistry.register(TestComponent, {role: "bla"})
expect(-> ComponentRegistry.register(TestComponent, {role: "other-role"})).not.toThrow()
it 'does not allow components to be overridden by other components with the same displayName', ->
ComponentRegistry.register(TestComponent, {role: "bla"})
expect(-> ComponentRegistry.register(TestComponentNotSameIdentity, {role: "bla"})).toThrow()
it 'does not allow components to be registered without a displayName', ->
expect(-> ComponentRegistry.register(TestComponentNoDisplayName, {role: "bla"})).toThrow()
describe 'findComponentByName', ->
it 'should return a component', ->
ComponentRegistry.register(TestComponent, {role: "bla"})
expect(ComponentRegistry.findComponentByName('TestComponent')).toEqual(TestComponent)
it 'should return undefined if there is no component', ->
expect(ComponentRegistry.findComponentByName("not actually a name")).toBeUndefined()
describe 'findComponentsMatching', ->
it 'should throw if a descriptor is not provided', ->
expect( -> ComponentRegistry.findComponentsMatching()).toThrow()
it 'should return the correct results in a wide range of test cases', ->
StubLocation1 =
id: 'StubLocation1'
StubLocation2 =
id: 'StubLocation2'
ComponentRegistry.register(AComponent, { role: 'ThreadAction' })
ComponentRegistry.register(BComponent, { role: 'ThreadAction', modes: ['list'] })
ComponentRegistry.register(CComponent, { location: StubLocation1, modes: ['split'] })
ComponentRegistry.register(DComponent, { locations: [StubLocation1, StubLocation2] })
ComponentRegistry.register(EComponent, { roles: ['ThreadAction', 'MessageAction'] })
ComponentRegistry.register(FComponent, { roles: ['MessageAction'], mode: 'list' })
scenarios = [
{descriptor: {role: 'ThreadAction'}, results: [AComponent, BComponent, EComponent]}
{descriptor: {role: 'ThreadAction', mode: 'list'}, results: [AComponent, BComponent, EComponent]}
{descriptor: {role: 'ThreadAction', mode: 'split'}, results: [AComponent, EComponent]}
{descriptor: {location: StubLocation1}, results: [CComponent, DComponent]}
{descriptor: {location: StubLocation1, mode: 'list'}, results: [DComponent]}
{descriptor: {locations: [StubLocation1, StubLocation2]}, results: [CComponent, DComponent]}
{descriptor: {roles: ['ThreadAction', 'MessageAction']}, results: [AComponent, BComponent, EComponent, FComponent]}
]
scenarios.forEach ({descriptor, results}) ->
expect(ComponentRegistry.findComponentsMatching(descriptor)).toEqual(results)
describe 'unregister', ->
it 'unregisters the component if it exists', ->
ComponentRegistry.register(TestComponent, { role: 'bla' })
ComponentRegistry.unregister(TestComponent)
expect(ComponentRegistry.findComponentByName('TestComponent')).toBeUndefined()
it 'throws if a string is passed instead of a component', ->
expect( -> ComponentRegistry.unregister('TestComponent')).toThrow()