Allow "incomplete hashing" when testing ObjC bridged objects

tbkka · tbkka · commit 8cc0fe73d750 · 2023-10-31T11:37:10.000-07:00
Swift objects can implement Equatable without implementing
Hashable.  Obj-C NSObject always provides both.

Now that we bridge Swift Equatable to Obj-C `-isEqual:`,
we have to be conservative with how we expose `-hash`
for Swift types that are Equatable but not Hashable.
This looks like "incomplete hashing" of such types.
diff --git a/test/stdlib/BridgeIdAsAny.swift.gyb b/test/stdlib/BridgeIdAsAny.swift.gyb
@@ -346,7 +346,7 @@ BridgeAnything.test("SwiftValue(mixed values)/Hashable") {
     }
     return lhs / 2 == rhs / 2
   }
-  checkHashable(boxedXs, equalityOracle: equalityOracle)
+  checkHashable(boxedXs, equalityOracle: equalityOracle, allowIncompleteHashing: true)
 }
 
 runAllTests()

Original file line number	Diff line number	Diff line change
`@@ -346,7 +346,7 @@ BridgeAnything.test("SwiftValue(mixed values)/Hashable") {`
`346`	`346`	`}`
`347`	`347`	`return lhs / 2 == rhs / 2`
`348`	`348`	`}`
`349`		`- checkHashable(boxedXs, equalityOracle: equalityOracle)`
	`349`	`+ checkHashable(boxedXs, equalityOracle: equalityOracle, allowIncompleteHashing: true)`
`350`	`350`	`}`
`351`	`351`
`352`	`352`	`runAllTests()`