Xcode - Clang erreur : référence à NSUTF8StringEncoding est ambiguë - Stack Overflow

I am trying to create unit tests using the new XCTest framework introduced in Xcode 5. I have a line in one of my test cases that looks like this:

XCTAssertEqual([self.client stringEncoding], NSUTF8StringEncoding, …);

When I try to run my tests, Xcode spits out this error: "Reference to NSUTF8StringEncoding is ambiguous." I can get the test to work by changing the above line to this:

XCTAssertEqual([self.client stringEncoding], (NSStringEncoding) 4, …);

(This works because 4 is the value of NSUTF8StringEncoding.) This also happens when I assign NSUTF8StringEncoding to a local variable and use it in the XCTAssertEqual() call instead. Why am I getting this error?

I am trying to create unit tests using the new XCTest framework introduced in Xcode 5. I have a line in one of my test cases that looks like this:

XCTAssertEqual([self.client stringEncoding], NSUTF8StringEncoding, …);

When I try to run my tests, Xcode spits out this error: "Reference to NSUTF8StringEncoding is ambiguous." I can get the test to work by changing the above line to this:

XCTAssertEqual([self.client stringEncoding], (NSStringEncoding) 4, …);

(This works because 4 is the value of NSUTF8StringEncoding.) This also happens when I assign NSUTF8StringEncoding to a local variable and use it in the XCTAssertEqual() call instead. Why am I getting this error?

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