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'use strict';
var test = require('tape');
var stopIterationIterator = require('../');
test('stopIterationIterator', function (t) {
t.equal(typeof stopIterationIterator, 'function', 'stopIterationIterator is a function');
t.test('no StopIteration support', { skip: typeof StopIteration === 'object' }, function (st) {
st['throws'](
function () { stopIterationIterator(); },
SyntaxError,
'throws a SyntaxError when StopIteration is not supported'
);
st.end();
});
t.test('StopIteration support', { skip: typeof StopIteration !== 'object' }, function (st) {
var s = new Set([1, 2]);
var i = s.iterator();
st.equal(i.next(), 1, 'first item is 1');
st.equal(i.next(), 2, 'second item is 2');
try {
i.next();
st.fail();
} catch (e) {
st.equal(e, StopIteration, 'StopIteration thrown');
}
var m = new Map([[1, 'a'], [2, 'b']]);
var mi = m.iterator();
st.deepEqual(mi.next(), [1, 'a'], 'first item is 1 and a');
st.deepEqual(mi.next(), [2, 'b'], 'second item is 2 and b');
try {
mi.next();
st.fail();
} catch (e) {
st.equal(e, StopIteration, 'StopIteration thrown');
}
st.end();
});
t.end();
});