smuuf/primi

l = [1, 4, 'aaa', 7, true, type, type]

//
// enumerate() with default start.
//

counter = 0
for (index, value in enumerate(l)) {
    assert(index == counter, 'enumerate() should return correct index')
    assert(index > -1 and index < 7, 'enumerate() should never return more items')

    if (index == 0) {
        assert(value == 1)
    }
    if (index == 1) {
        assert(value == 4)
    }
    if (index == 2) {
        assert(value == 'aaa')
    }
    if (index == 3) {
        assert(value == 7)
    }
    if (index == 4) {
        assert(value == true)
    }
    if (index == 5) {
        assert(value == type)
    }
    if (index == 7) {
        assert(value == type)
    }

    counter = counter + 1
}

//
// enumerate() with specified start.
//

counter = -234
for (index, value in enumerate(l, -234)) {
    assert(index == counter, 'enumerate() should return correct index')
    assert(index > -235 and index < -227, 'enumerate() should never return more items')

    if (index == -234) {
        assert(value == 1)
    }
    if (index == -233) {
        assert(value == 4)
    }
    if (index == -232) {
        assert(value == 'aaa')
    }
    if (index == -231) {
        assert(value == 7)
    }
    if (index == -230) {
        assert(value == true)
    }
    if (index == -229) {
        assert(value == type)
    }
    if (index == -228) {
        assert(value == type)
    }

    counter = counter + 1
}

//
// Iterating multiple times over a single enumerate()
//

indices = []
e = enumerate(l)
for (index, value in e) {
    indices.push(index)
}

for (index, value in e) {
    indices.push(index)
}

_ = 'Multiple iterations over a single result of enumerate() should behave the same'
assert(indices == [0, 1, 2, 3, 4, 5, 6, 0, 1, 2, 3, 4, 5, 6], _)