Write a function moveZerosToEnd that takes an array of ints and returns a new array with the same
elements as the original, but all zeros are moved to the end while maintaining the order of the non-zero elements.
For example if the array is {0, 1, 0, 3, 12}, the returned array should be {1, 3, 12, 0, 0}.
You're challenge is to write tests for this problem described above.
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