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ProfileViewModelTests.swift
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import Foundation
import XCTest
import ReactiveSwift
import Result
import KsApi
import Prelude
@testable import KsApi
@testable import Library
@testable import ReactiveExtensions_TestHelpers
internal final class ProfileViewModelTests: TestCase {
private let vm = ProfileViewModel()
private let user = TestObserver<User, NoError>()
private let hasAddedProjects = TestObserver<Bool, NoError>()
private let hasBackedProjects = TestObserver<Bool, NoError>()
private let goToProject = TestObserver<Project, NoError>()
private let goToProjects = TestObserver<[Project], NoError>()
private let goToRefTag = TestObserver<RefTag, NoError>()
private let goToSettings = TestObserver<Void, NoError>()
private let scrollToProjectItem = TestObserver<Int, NoError>()
private let showEmptyState = TestObserver<Bool, NoError>()
internal override func setUp() {
super.setUp()
self.vm.outputs.user.observe(user.observer)
self.vm.outputs.backedProjects.map { !$0.isEmpty }.observe(hasBackedProjects.observer)
self.vm.outputs.goToProject.map { $0.0 }.observe(goToProject.observer)
self.vm.outputs.goToProject.map { $0.1 }.observe(goToProjects.observer)
self.vm.outputs.goToProject.map { $0.2 }.observe(goToRefTag.observer)
self.vm.outputs.goToSettings.observe(goToSettings.observer)
self.vm.outputs.scrollToProjectItem.observe(self.scrollToProjectItem.observer)
self.vm.outputs.showEmptyState.observe(showEmptyState.observer)
self.vm.outputs.backedProjects
.map { $0.count }
.combinePrevious(0)
.map { prev, next in next > prev }
.observe(self.hasAddedProjects.observer)
}
func testGoToSettings() {
self.vm.inputs.settingsButtonTapped()
self.goToSettings.assertValueCount(1, "Go to settings screen.")
}
func testProjectCellTapped() {
let project = Project.template
let projects = (1...3).map { .template |> Project.lens.id .~ $0 }
let env = .template |> DiscoveryEnvelope.lens.projects .~ projects
withEnvironment(apiService: MockService(fetchDiscoveryResponse: env)) {
self.vm.inputs.viewWillAppear(false)
self.scheduler.advance()
self.vm.inputs.projectTapped(project)
self.goToProject.assertValues([project], "Project emmitted.")
self.goToProjects.assertValues([projects])
self.goToRefTag.assertValues([.profileBacked], "RefTag =profile_backed emitted.")
}
}
func testUser_WithBackedProjects() {
let user = User.template
let projects = (1...3).map { .template |> Project.lens.id .~ $0 }
let projectsWithNewProject = (1...4).map { .template |> Project.lens.id .~ $0 }
let env = .template |> DiscoveryEnvelope.lens.projects .~ projects
let env2 = .template |> DiscoveryEnvelope.lens.projects .~ projectsWithNewProject
withEnvironment(apiService: MockService(fetchDiscoveryResponse: env),
currentUser: user) {
self.vm.inputs.viewWillAppear(false)
self.scheduler.advance()
self.user.assertValues([user, user], "Current user emmitted.")
self.hasBackedProjects.assertValues([true])
self.showEmptyState.assertValues([false])
XCTAssertEqual(["Profile View My", "Viewed Profile"], trackingClient.events)
self.vm.inputs.viewWillAppear(false)
self.scheduler.advance()
self.user.assertValues([user, user, user, user], "Current user emmitted.")
self.hasBackedProjects.assertValues([true])
self.showEmptyState.assertValues([false])
XCTAssertEqual(["Profile View My", "Viewed Profile", "Profile View My", "Viewed Profile"],
trackingClient.events)
self.vm.inputs.viewWillAppear(true)
self.scheduler.advance()
self.user.assertValues([user, user, user, user, user, user], "Current user emmitted.")
self.hasBackedProjects.assertValues([true])
self.showEmptyState.assertValues([false])
XCTAssertEqual(["Profile View My", "Viewed Profile", "Profile View My", "Viewed Profile"],
trackingClient.events, "Viewed Profile tracking does not emit.")
// Come back after backing a project.
withEnvironment(apiService: MockService(fetchDiscoveryResponse: env2),
currentUser: user) {
self.vm.inputs.viewWillAppear(false)
self.scheduler.advance()
self.user.assertValues([user, user, user, user, user, user, user, user], "Current user emmitted.")
self.hasBackedProjects.assertValues([true, true])
self.showEmptyState.assertValues([false, false])
XCTAssertEqual(["Profile View My", "Viewed Profile", "Profile View My", "Viewed Profile",
"Profile View My", "Viewed Profile"], trackingClient.events)
}
}
}
func testUser_WithNoProjects() {
let env = .template |> DiscoveryEnvelope.lens.projects .~ []
withEnvironment(apiService: MockService(fetchDiscoveryResponse: env), currentUser: .template) {
self.vm.inputs.viewWillAppear(false)
self.hasBackedProjects.assertValueCount(0)
self.showEmptyState.assertValueCount(0)
XCTAssertEqual(["Profile View My", "Viewed Profile"], trackingClient.events)
self.scheduler.advance()
self.hasBackedProjects.assertValues([false])
self.showEmptyState.assertValues([true], "Empty state is shown for user with 0 backed projects.")
self.vm.inputs.viewWillAppear(true)
self.scheduler.advance()
self.hasBackedProjects.assertValues([false], "Backed projects does not emit.")
self.showEmptyState.assertValues([true], "Empty state does not emit.")
XCTAssertEqual(["Profile View My", "Viewed Profile"], trackingClient.events)
}
}
func testScrollAndUpdateProjects_ViaProjectNavigator() {
let playlist = (0...10).map { idx in .template |> Project.lens.id .~ (idx + 42) }
let projectEnv = .template
|> DiscoveryEnvelope.lens.projects .~ playlist
let playlist2 = (0...20).map { idx in .template |> Project.lens.id .~ (idx + 72) }
let projectEnv2 = .template
|> DiscoveryEnvelope.lens.projects .~ playlist2
withEnvironment(apiService: MockService(fetchDiscoveryResponse: projectEnv), currentUser: .template) {
self.vm.inputs.viewWillAppear(false)
self.scheduler.advance()
self.hasAddedProjects.assertValues([true], "Projects are loaded.")
self.vm.inputs.projectTapped(playlist[4])
self.vm.inputs.transitionedToProject(at: 5, outOf: playlist.count)
self.scrollToProjectItem.assertValues([5])
self.vm.inputs.transitionedToProject(at: 6, outOf: playlist.count)
self.scrollToProjectItem.assertValues([5, 6])
self.vm.inputs.transitionedToProject(at: 7, outOf: playlist.count)
self.scrollToProjectItem.assertValues([5, 6, 7])
withEnvironment(apiService: MockService(fetchDiscoveryResponse: projectEnv2)) {
self.vm.inputs.transitionedToProject(at: 8, outOf: playlist.count)
self.scheduler.advance()
self.scrollToProjectItem.assertValues([5, 6, 7, 8])
self.hasAddedProjects.assertValues([true, true], "More projects are loaded.")
self.vm.inputs.transitionedToProject(at: 7, outOf: playlist2.count)
self.scrollToProjectItem.assertValues([5, 6, 7, 8, 7])
}
}
}
}