iOS Swift unit test result in unresolved identifier

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Simple function in swift for testing:

func testExample() {
    var tagname = "someClass()"
    var logger = Device("", "") //unresolved identifier

    XCTAssert(true, "Pass")
}

Even after I import my module with "import ", I still cannot use classes from my module. Also though I might have messed something up in the project, but NONE of my sample projects will let me use module classes.

Seems like it should work but might have broken in beta 2.

EDIT: fixed it The IDE didn't pick up the check for the param names. Seems Xcode is still a tad iffy

I hit the same issue today, not sure if this is only available recently - rather than using import TARGET_NAME in your test file and/or declaring your classes/methods as public, you can add your file to your Tests target via XCode's File Inspector.

Cmd + Opt + 1 to show it while in any file, and check the box under Target Membership for your Tests Target.

You may need to rebuild.... Cmd + b.

Should this be specific to my system.... I'm running Xcode 6.3 beta 1, and testing via Quick + Nimble, both installed with the latest cocoapods beta.

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The problem for me was that I had non-alphanumerical characters in my main target name.

I had to import it the following way (Note the special @testable annotation)

@testable import my_tutorial_app

Testable Import of Module Containi…, Testable Import of Module Containing Internal Struct Results In Unresolved Identifier Error. I have a Unit Test Case class, as part of a Unit Test target, in which I am importing the module I wish to test with @testable. defined struct in the module under test, is reported as an unresolved identifier (when I Xcode 11.3, Swift 5. Browse other questions tagged ios swift unit-testing xctest or ask your own question. iOS Swift unit test result in unresolved identifier. 0. Testing an extension

It seems that in Xcode 6 Beta 4 you need to declare public classes and methods as "public". Example:

public class Device {
    public init(...) {
    }

    public func myMethod(...) {
    }
}

Now they are accessible from the swift test class.

Understanding "Use of Unresolved Identifier" Error in Xcode, “Unresolved” means that Xcode wasn't able to resolve the identifier – it couldn't find it. You can't code a variable or function if Xcode doesn't know what you mean! Xcode uses the Swift compiler to statically analyze your Swift code. If you’re using a function from the Alamofire framework, but you haven’t imported it at the top of your Swift file, you’ll definitely see the Use of unresolved identifier error. A way to find out that you’ve in fact forgotten to import a framework is to simply search Google for the exact error you’re seeing in Xcode:

I had the same problem and discovered that it works if I call it like this:

SuperStructName.StructName

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Unit Testing on macOS: Part 1/2, The imports: XCTest is the testing framework provided by Xcode. error before you can even run the test: "Use of unresolved identifier 'Dice'" . says your app is cheating, you can show them the test results to prove it isn't! User interface testing is the ultimate integration test, because you’re seeing the app exactly how users do – there’s no special internal knowledge of how your code is structured as we get with unit tests, and you can’t add mocks or stubs to isolate specific functionality.

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Comments
  • Tried a lot of methods, this is the only one that worked.
  • Be careful if you add the files like this and you also use the @testable import feature, because you'll end up with "Cannot assign value of type 'X' to type 'X'" errors. See forums.developer.apple.com/thread/24474. Also, "clean" seems to be funny sometimes. I was getting "unresolved identifier" after I removed the files and switched to @testable import and cleaning wasn't helping. After modifying one file, the errors disappeared...
  • The file where you are receiving the error is probably added as Target Membership in your Tests or UITests targets, while the code that's failing is in a file that's not added there. Removing the Tests membership worked for me, but I assume both files must have the same Target Memberships
  • That did it. Is this just a temporary work around ? or is this how things are meant to work. Tests defined alongside a project should not require this. (I can understand if these were acceptance tests against a module).
  • You can use "@testable import Foo" lets you use public or "internal access" functions/classes. That way you can test things without making them all the way public.