Swap inconsistent assert_eq!
argument order in testing chapter
#3497
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The chapter starts off by using
assert_eq!(…);
withassert_eq!(actual, expected);
argument ordering, but then suddenly swaps the order toassert_eq!(expected, actual);
withassert_eq!(4, add_two(2));
Further more it then states …
… which seems weird as in the chapter
assert_eq!(4, add_two(2))
actually is the odd one out, notassert_eq!(add_two(2), 4)
.By swapping the args the message of "which would result in the same failure message" remains true, but the text feels a bit more consistent and predictable.