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|
// -*- swift -*-
// RUN: %target-run-simple-swiftgyb
// REQUIRES: executable_test
// FIXME: Casting.cpp has dozens of places to fail a cast. This test does not
// attempt to enumerate them all.
import StdlibUnittest
#if _runtime(_ObjC)
import Foundation
#endif
% types = []
% objectTypes = []
% protocolTypes = []
% ObjCTypes = []
% types.append(['main.Class1', 'main.Class2'])
% objectTypes.append(['main.Class1', 'main.Class2'])
class Class1 { }
class Class2 { }
% types.append(['main.Struct1', 'main.Struct2'])
struct Struct1 { }
struct Struct2 { }
% types.append(['main.ObjCClass1', 'main.ObjCClass2'])
% objectTypes.append(['main.ObjCClass1', 'main.ObjCClass2'])
% ObjCTypes.extend(['main.ObjCClass1', 'main.ObjCClass2'])
#if _runtime(_ObjC)
class ObjCClass1 : NSObject { }
class ObjCClass2 : NSObject { }
#endif
% types.append(['DateFormatter', 'NumberFormatter'])
% objectTypes.append(['DateFormatter', 'NumberFormatter'])
% ObjCTypes.extend(['DateFormatter', 'NumberFormatter'])
// non-Swift Objective-C class
% protocolTypes.append('main.Proto1')
% protocolTypes.append('main.Proto2')
protocol Proto1 { }
protocol Proto2 { }
% protocolTypes.append('URLSessionDelegate')
% ObjCTypes.append('URLSessionDelegate')
// non-Swift Objective-C protocol
var CastTrapsTestSuite = TestSuite("CastTraps")
// Test `(T1() as Any) as T2` cast failure
// for all type pairs.
% for (t1, _) in types:
% for (_, t2) in types:
% if t1 not in ObjCTypes and t2 not in ObjCTypes:
CastTrapsTestSuite.test("${t1}__${t2}")
.skip(.custom(
{ _isFastAssertConfiguration() },
reason: "this trap is not guaranteed to happen in -Ounchecked"))
.crashOutputMatches("Could not cast value of type '")
.crashOutputMatches("${t1}' ")
.crashOutputMatches(" to '")
.crashOutputMatches("${t2}'")
.code
{
let o = ${t1}() as Any
expectCrashLater()
let r = o as! ${t2}
_blackHole(r)
}
% end
% end
% end
// Test `(T1() as AnyObject) as T2` cast failure
// for object type to protocol type pairs
% for (t1, _) in objectTypes:
% for (t2) in protocolTypes:
% if t1 not in ObjCTypes and t2 not in ObjCTypes:
CastTrapsTestSuite.test("${t1}__${t2}")
.skip(.custom(
{ _isFastAssertConfiguration() },
reason: "this trap is not guaranteed to happen in -Ounchecked"))
.crashOutputMatches("Could not cast value of type '")
.crashOutputMatches("${t1}' ")
.crashOutputMatches(" to '")
.crashOutputMatches("${t2}'")
.code
{
let o = ${t1}() as AnyObject
expectCrashLater()
let r = o as! ${t2}
_blackHole(r)
}
% end
% end
% end
protocol P2 {}
if #available(SwiftStdlib 6.0, *) {
CastTrapsTestSuite.test("Unexpected null")
.crashOutputMatches("Found a null pointer in a value of type '")
.crashOutputMatches("Foo'")
.crashOutputMatches("(Detected while casting to '")
.crashOutputMatches("P2'")
.code
{
class Foo {}
let n = UnsafeRawPointer(bitPattern: 0)
var o: Foo = unsafeBitCast(n, to: Foo.self)
let r = o as Any
expectCrashLater()
let s = r as? P2
_blackHole(s)
}
}
#if _runtime(_ObjC)
if #available(SwiftStdlib 6.0, *) {
CastTrapsTestSuite.test("Unexpected Obj-C null")
.crashOutputMatches("Found a null pointer in a value of type 'NSObject'")
.crashOutputMatches("(Detected while casting to '")
.crashOutputMatches("P2'")
.code
{
let n = UnsafeRawPointer(bitPattern: 0)
var o: NSObject = unsafeBitCast(n, to: NSObject.self)
let r = o as Any
expectCrashLater()
let s = r as? P2
_blackHole(s)
}
}
#endif
runAllTests()
|
