Tests: use strict assertions #247
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`assertEquals()` comes down to a loose type `==` comparison, while `assertSame()` does a strict type `===` comparison, so if at all possible, one should always use `assertSame()` instead of `assertEquals()`.
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assertEquals()comes down to a loose type==comparison, whileassertSame()does a strict type===comparison, so if at all possible, one should always useassertSame()instead ofassertEquals().