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