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// RUN: %empty-directory(%t)
// RUN: %target-build-swift %s -o %t/Assert_Debug -Onone
// RUN: %target-build-swift %s -Xfrontend -disable-access-control -o %t/Assert_Release -O
// RUN: %target-build-swift %s -Xfrontend -disable-access-control -o %t/Assert_Unchecked -Ounchecked
// RUN: %target-codesign %t/Assert_Debug
// RUN: %target-codesign %t/Assert_Release
// RUN: %target-codesign %t/Assert_Unchecked
//
// RUN: %target-run %t/Assert_Debug
// RUN: %target-run %t/Assert_Release
// RUN: %target-run %t/Assert_Unchecked
// REQUIRES: executable_test
// UNSUPPORTED: OS=wasi
import StdlibUnittest
func returnNil() -> AnyObject? {
return _opaqueIdentity(nil as AnyObject?)
}
var OptionalTraps = TestSuite("OptionalTraps")
func shouldCheckErrorLocation() -> Bool {
// Location information for runtime traps is only emitted in debug builds.
guard _isDebugAssertConfiguration() else { return false }
// The runtime error location format changed after the 5.3 release.
// (https://github.com/apple/swift/pull/34665)
if #available(macOS 11.3, iOS 14.5, tvOS 14.5, watchOS 7.4, *) {
return true
} else {
return false
}
}
OptionalTraps.test("UnwrapNone")
.skip(.custom(
{ _isFastAssertConfiguration() },
reason: "this trap is not guaranteed to happen in -Ounchecked"))
.code {
let a: AnyObject? = returnNil()
expectCrashLater()
let unwrapped: AnyObject = a!
_blackHole(unwrapped)
}
OptionalTraps.test("UnwrapNone/location")
.skip(.custom(
{ _isFastAssertConfiguration() },
reason: "this trap is not guaranteed to happen in -Ounchecked"))
.crashOutputMatches(shouldCheckErrorLocation()
? "OptionalTraps.swift:58:"
: "")
.code {
expectCrashLater()
let a: AnyObject? = returnNil()
expectCrashLater()
let unwrapped: AnyObject = a!
_blackHole(unwrapped)
}
OptionalTraps.test("UnwrapNone/Ounchecked")
.xfail(.custom(
{ !_isFastAssertConfiguration() },
reason: "unwrapping nil should trap unless we are in -Ounchecked mode"))
.code {
var a: AnyObject? = returnNil()
expectEqual(0, unsafeBitCast(a!, to: Int.self))
}
OptionalTraps.test("UnwrapNone/Message")
.skip(.custom(
{ _isFastAssertConfiguration() },
reason: "this trap is not guaranteed to happen in -Ounchecked"))
.skip(.custom(
{ !_isDebugAssertConfiguration() },
reason: "this trap may not have an error message may not be printed in -O"))
.code {
var a: AnyObject? = returnNil()
expectCrashLater(withMessage:
"Unexpectedly found nil while unwrapping an Optional value")
let unwrapped: AnyObject = a!
_blackHole(unwrapped)
}
OptionalTraps.test("UnwrapNone/Message/Implicit")
.skip(.custom(
{ _isFastAssertConfiguration() },
reason: "this trap is not guaranteed to happen in -Ounchecked"))
.skip(.custom(
{ !_isDebugAssertConfiguration() },
reason: "this trap may not have an error message may not be printed in -O"))
.code {
var a: AnyObject! = returnNil()
expectCrashLater(withMessage:
"Unexpectedly found nil while implicitly unwrapping an Optional value")
let unwrapped: AnyObject = a
_blackHole(unwrapped)
}
runAllTests()
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