Mailspring/app/spec/registries/extension-registry-spec.ts
Ben Gotow 149b389508
Replace Babel with TypeScript compiler, switch entire app to TypeScript 🎉 (#1404)
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* README updates

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* Remove flicker when saving file and reloading keymaps

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* Ensure specs run

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2019-03-04 11:03:12 -08:00

67 lines
2.4 KiB
TypeScript

const ExtensionRegistry = require('../../src/registries/extension-registry');
class TestExtension {}
describe('ExtensionRegistry', function() {
beforeEach(function() {
this.registry = new ExtensionRegistry.Registry('Test');
spyOn(this.registry, 'triggerDebounced');
});
describe('Registry', function() {
it('has trigger and listen to defined', function() {
expect(this.registry.trigger).toBeDefined();
expect(this.registry.listen).toBeDefined();
expect(this.registry.listenTo).toBeDefined();
});
describe('register', function() {
it('throws an exception if extension not passed', function() {
expect(() => this.registry.register(null)).toThrow();
});
it('throws an exception if extension does not have a name', function() {
expect(() => this.registry.register({})).toThrow();
});
it('throws an exception if extension is array', function() {
expect(() => this.registry.register([])).toThrow();
});
it('throws an exception if extension is string', function() {
expect(() => this.registry.register('')).toThrow();
});
it('returns itself', function() {
expect(this.registry.register(TestExtension)).toBe(this.registry);
});
it('registers extension and triggers', function() {
this.registry.register(TestExtension);
expect(this.registry.extensions().length).toEqual(1);
expect(this.registry.triggerDebounced).toHaveBeenCalled();
});
it('does not add extensions with the same name', function() {
expect(this.registry.extensions().length).toEqual(0);
this.registry.register(TestExtension);
expect(() => this.registry.register({ name: 'TestExtension' })).toThrow();
});
});
describe('unregister', function() {
it('unregisters the extension if it exists', function() {
this.registry.register(TestExtension);
this.registry.unregister(TestExtension);
expect(this.registry.extensions().length).toEqual(0);
});
it('throws if invalid extension passed', function() {
expect(() => this.registry.unregister('Test')).toThrow();
expect(() => this.registry.unregister(null)).toThrow();
expect(() => this.registry.unregister([])).toThrow();
expect(() => this.registry.unregister({})).toThrow();
});
});
});
});