it('Should call dispatch and getState exactly once.', () => {
return doubleAsync()(_dispatchSpy, _getStateSpy)
.then(() => {
_dispatchSpy.should.have.been.calledOnce
_getStateSpy.should.have.been.calledOnce
})
})
it('Should produce a state that is double the previous state.', () => {
_globalState = { counter: 2 }
return doubleAsync()(_dispatchSpy, _getStateSpy)
.then(() => {
_dispatchSpy.should.have.been.calledOnce
_getStateSpy.should.have.been.calledOnce
expect(_globalState.counter).to.equal(4)
return doubleAsync()(_dispatchSpy, _getStateSpy)
})
.then(() => {
_dispatchSpy.should.have.been.calledTwice
_getStateSpy.should.have.been.calledTwice
expect(_globalState.counter).to.equal(8)
})
})
.then(() => {
_dispatchSpy.should.have.been.calledOnce
_getStateSpy.should.have.been.calledOnce
expect(_globalState.counter).to.equal(4)
return doubleAsync()(_dispatchSpy, _getStateSpy)
})
it('Should return a promise from that thunk that gets fulfilled.', () => {
return doubleAsync()(_dispatchSpy, _getStateSpy).should.eventually.be.fulfilled
})
it('Should return a function (is a thunk).', () => {
expect(doubleAsync()).to.be.a('function')
})