Writing tests for swift classes with XCTest written in Objective c

I'm facing a problem trying to write a test for class written in Objective-c and gets injected with a class written in Swift.

Example in the Test file:

SomeSwiftClass *swiftVar = [SomeSwiftClass new];
SomeObjectiveCClass *objVar = [[SomeObjectiveCClass alloc] initWithSwiftClass:swiftVar]

But the complier doesn't recognize the Swift class, and it doesnt support importing the "Target-Swift.h" too..

How can I write a test for both Objective c and Swift at the same TestFile ?