Array VS Set performance

import XCTest

class ArrayVSSetTest: XCTestCase {

    //Creation times are practically the same (keeping in mind a set is created from an array)
    func testSetCreationPerformance() {
        let array = [Int](1...10000)
        self.measure {
            for _ in 0...100 {
                _ = Set(array)
            }
        }
    }

    func testArrayCreationPerformance() {
        self.measure {
            for _ in 0...100 {
                _ = [Int](1...10000)
            }
        }
    }
    
    //Creation times decreases if array has repeated values
    func testSetCreationWithRepetitionsPerformance() {
        let array = Array(repeating: 3, count: 10000)
        self.measure {
            for _ in 0...100 {
                _ = Set(array)
            }
        }
    }
    
    func testArrayCreationPerformance() {
        self.measure {
            for _ in 0...100 {
                _ = [Int](1...10000)
            }
        }
    }
    
    //Adding an array performs x10 times better than a set
    func testAddingToSet() {
        var set = Set<Int>()
        self.measure {
            for i in 0...1000 {
                set.insert(i)
            }
        }
    }
    
    func testAddingToArray() {
        var array = [Int]()
        self.measure {
            for i in 0...1000 {
                array.append(i)
            }
        }
    }
    
    //In searching a set is increadibly superior, no discussion here
    func testSearchInSet() {
        let array = [Int](1...10000)
        let set = Set(array)
        self.measure {
            for i in 0...1000 {
                _ = set.contains(i)
            }
        }
    }
    
    func testSearchinInArray() {
        let array = [Int](1...10000)
        self.measure {
            for i in 0...1000 {
                _ = array.first(where: { $0 == i })
            }
        }
    }
    
    //In deleting Set is around 7x faster than the array in this case
    func testDeleteInSet() {
        let array = [Int](1...10000)
        var set = Set(array)
        self.measure {
            for i in 0...500 {
                _ = set.remove(i)
            }
        }
    }
    
    //Funny thing, if trying to delete 1000 first values it crashes (not enough memory?)
    func testDeleteInArray() {
        var array = [Int](1...10000)
        self.measure {
            for i in 0...500 {
                _ = array.remove(at: i)
            }
        }
    }
}