 /// This is useful for asserting the equality of collections which only define equality for Equatable element types.
 ///
 ///		assert(x, ==, y)
-public func assert<T, U>(@autoclosure expression1: () -> T, test: (T, U) -> Bool, @autoclosure expression2: () -> U, message: String = "", file: String = __FILE__, line: UInt = __LINE__) -> T? {
+public func assert<T, U>(@autoclosure expression1: () -> T, _ test: (T, U) -> Bool, @autoclosure _ expression2: () -> U, message: String = "", file: String = __FILE__, line: UInt = __LINE__) -> T? {
 	return assertExpected(expression1(), test, expression2(), message, file, line)
 }
 

/// Asserts the equality of two dictionaries of Equatable values.
///
/// Returns the dictionary, if equal and non-nil.
public func assertEqual<T: Hashable, U: Equatable>(@autoclosure expression1: () -> [T: U]?, @autoclosure expression2: () -> [T: U]?, _ message: String = "", _ file: String = __FILE__, _ line: UInt = __LINE__) -> [T: U]? {
	return assertExpected(expression1(), ==, expression2(), message, file, line)
}


/// This is useful for asserting that a value has some property or other.
///
///		assert("", { $0.isEmpty })
public func assert<T>(@autoclosure expression: () -> T?, message: String = "", file: String = __FILE__, line: UInt = __LINE__, _ test: T -> Bool) -> T? {
	return assertPredicate(expression(), test, message, file, line)
}

