Test Class #1 for the Post - better-setups-on-swift-tests

UserRepoTests.swift

import XCTest

class UserRepoTests: XCTestCase {
    var userRepo = UserRepo()
    var email  = "user@gmail.com"
    var result = [User]()
    
    override func setUp() {
        super.setUp()
        
        createAdmin(name: "User Admin 1")
        createUser(name: "User")
    }
    
    func testFindAdminsByMethodWhenHaveTwoAdminsAndOneCommunUserWithSameEmailAndPassTheEmailAsParameter() {
        let expectedCount   = 2
        let expectedNameOne = "User Admin 1"
        let expectedNameTwo = "User Admin 2"
        
        createAdmin(name: "User Admin 2")
        
        result = userRepo.findAdminsBy(email: email)
        
        XCTAssertEqual(expectedCount, result.count)
        
        XCTAssertEqual(expectedNameOne, result[0].name)
        XCTAssertEqual(expectedNameTwo, result[1].name)
    }
    
    func testFindAdminsByMethodWhenHaveOneAdmimAndOneCommunUserWithSameEmailAndPassTheEmailAsParameter() {
        let expectedCount = 1
        let expectedName  = "User Admin 1"
        
        result = userRepo.findAdminsBy(email: email)
        
        XCTAssertEqual(expectedCount, result.count)
        XCTAssertEqual(expectedName, result[0].name)
    }
    
    func  testFindAdminsByMethodWhenHaveOneAdmimAndOneCommunUserWithSameEmailAndPassDifferentEmailAsParameter() {
        let expectedCount = 0
        
        result = userRepo.findAdminsBy(email: "none@gmail.com")
        
        XCTAssertEqual(expectedCount, result.count)
    }
    
    // MARK: Functions to help to create User and Admin
    
    func createUser(name: String, email: String = "user@gmail.com") {
        let user = User(email: email, name: name)
        userRepo.save(user)
    }
    
    func createAdmin(name: String, email: String = "user@gmail.com") {
        let user = User(email: email, name: name, isAdmin: true)
        userRepo.save(user)
    }
    
}