RSPEC -Überprüfungsarray ohne Bestellung
expect([1, 2, 3]).to contain_exactly(2, 3, 1) # pass
expect([:a, :c, :b]).to contain_exactly(:a, :c ) # fail
MunnaBhaiyya
expect([1, 2, 3]).to contain_exactly(2, 3, 1) # pass
expect([:a, :c, :b]).to contain_exactly(:a, :c ) # fail
expect([1, 2, 3]).to match_array [2, 3, 1] # pass
expect([:a, :c, :b]).to match_array [:a, :c] # fail