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// RUN: %target-run-simple-swift
// REQUIRES: executable_test
// REQUIRES: objc_interop
// REQUIRES: OS=macosx
import Foundation
import StdlibUnittest
protocol Fooable {
func foo() -> String
}
func fooify<T>(_ x: T) -> String {
if let foo = x as? Fooable {
return foo.foo()
} else {
return "not fooable"
}
}
extension NSRect: Fooable {
func foo() -> String { return "NSRect" }
}
extension CFSet: Fooable {
func foo() -> String { return "CFSet" }
}
extension NSString: Fooable {
func foo() -> String { return "NSString" }
}
var ProtocolLookupForeign = TestSuite("ProtocolLookupForeign")
ProtocolLookupForeign.test("NSRect") {
expectEqual("NSRect", fooify(NSRect()))
}
ProtocolLookupForeign.test("NSPoint") {
expectEqual("not fooable", fooify(NSPoint()))
}
ProtocolLookupForeign.test("CFSet") {
if #available(SwiftStdlib 5.5, *) {
expectEqual("CFSet", fooify(CFSetCreate(kCFAllocatorDefault, nil, 0, nil)!))
}
}
ProtocolLookupForeign.test("CFArray") {
expectEqual("not fooable", fooify(CFArrayCreate(kCFAllocatorDefault, nil, 0, nil)!))
}
ProtocolLookupForeign.test("NSString") {
expectEqual("NSString", fooify(NSString()))
}
ProtocolLookupForeign.test("NSMutableString") {
expectEqual("NSString", fooify(NSMutableString()))
}
ProtocolLookupForeign.test("NSSet") {
expectEqual("not fooable", fooify(NSSet()))
}
runAllTests()
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