CODEWITHSUNDEEP
swiftxcodestructxctestinitialization
user1603721
user1603721

Reputation: 186

Swift 3 Unit Test throws compile error "Cannot convert value 'Type' to 'Type'"

I have a struct (partial)

struct Event : JSONSerializable, Glossy {
    let name : String
    let start : String
    private var startTimeZone: String
    let finish : String
    private var finishTimeZone: String

that when called from UnitTest:

func testReal() {
    let event : Event = Event()
    let editor = EventEditor(forEvent: Event())
    XCTAssertNotNil(editor)
}

throws compile error: Cannot convert value of type 'Event' to expected arguement type 'Event'

EventEditor is: 

import Foundation

class EventEditor {
let event : Event

   init(forEvent event: Event) {
        self.event = event
    }
}

But if when called from product (aka outside if unit tests) it works just fine with no errors or issues. JSONSerializable -- helper extensions to convert to/from JSON Glossy -- cocoapod for json parsing.

I've tried created a stripped down version of Event and adding pieces (eg JSONSerializable, Glossy)

Can anyone suggest why this wouldn't work in XCTest but works in other code?

Upvotes: 1

Views: 809

Answers (1)

Mike Taverne
Mike Taverne

Reputation: 9362

Very possibly you have added the file that contains the Event struct to both your main target and your test target.

To check if this is the case, select the file in the Project navigator, then show the Utilities pane on the right, and check the Target Membership. If your test target is checked, uncheck it.

In your XCTest file, add @testable import YourMainTargetNameHere to the top of the file.

Upvotes: 6

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