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sublist.spec.js
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123 lines (88 loc) · 3.28 KB
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import List from './sublist';
describe('sublist', () => {
test('two empty lists are equal', () => {
const listOne = new List();
const listTwo = new List();
expect(listOne.compare(listTwo)).toEqual('EQUAL');
});
test('an empty list is a sublist of a non-empty list', () => {
const listOne = new List();
const listTwo = new List([1, 2, 3]);
expect(listOne.compare(listTwo)).toEqual('SUBLIST');
});
test('non empty list contains empty list', () => {
const listOne = new List([1, 2, 3]);
const listTwo = new List();
expect(listOne.compare(listTwo)).toEqual('SUPERLIST');
});
test('a non-empty list equals itself', () => {
const listOne = new List([1, 2, 3]);
const listTwo = new List([1, 2, 3]);
expect(listOne.compare(listTwo)).toEqual('EQUAL');
});
test('two different lists are unequal', () => {
const listOne = new List([1, 2, 3]);
const listTwo = new List([2, 3, 4]);
expect(listOne.compare(listTwo)).toEqual('UNEQUAL');
});
test('false start', () => {
const listOne = new List([1, 2, 5]);
const listTwo = new List([0, 1, 2, 3, 1, 2, 5, 6]);
expect(listOne.compare(listTwo)).toEqual('SUBLIST');
});
test('consecutive', () => {
const listOne = new List([1, 1, 2]);
const listTwo = new List([0, 1, 1, 1, 2, 1, 2]);
expect(listOne.compare(listTwo)).toEqual('SUBLIST');
});
test('sublist at start', () => {
const listOne = new List([0, 1, 2]);
const listTwo = new List([0, 1, 2, 3, 4, 5]);
expect(listOne.compare(listTwo)).toEqual('SUBLIST');
});
test('sublist in middle', () => {
const listOne = new List([2, 3, 4]);
const listTwo = new List([0, 1, 2, 3, 4, 5]);
expect(listOne.compare(listTwo)).toEqual('SUBLIST');
});
test('sublist at end', () => {
const listOne = new List([3, 4, 5]);
const listTwo = new List([0, 1, 2, 3, 4, 5]);
expect(listOne.compare(listTwo)).toEqual('SUBLIST');
});
test('at start of superlist', () => {
const listOne = new List([0, 1, 2, 3, 4, 5]);
const listTwo = new List([0, 1, 2]);
expect(listOne.compare(listTwo)).toEqual('SUPERLIST');
});
test('in middle of superlist', () => {
const listOne = new List([0, 1, 2, 3, 4, 5]);
const listTwo = new List([2, 3]);
expect(listOne.compare(listTwo)).toEqual('SUPERLIST');
});
test('at end of superlist', () => {
const listOne = new List([0, 1, 2, 3, 4, 5]);
const listTwo = new List([3, 4, 5]);
expect(listOne.compare(listTwo)).toEqual('SUPERLIST');
});
test('first list missing element from second list', () => {
const listOne = new List([1, 3]);
const listTwo = new List([1, 2, 3]);
expect(listOne.compare(listTwo)).toEqual('UNEQUAL');
});
test('second list missing element from first list', () => {
const listOne = new List([1, 2, 3]);
const listTwo = new List([1, 3]);
expect(listOne.compare(listTwo)).toEqual('UNEQUAL');
});
test('order matters to a list', () => {
const listOne = new List([1, 2, 3]);
const listTwo = new List([3, 2, 1]);
expect(listOne.compare(listTwo)).toEqual('UNEQUAL');
});
test('same digits but different numbers', () => {
const listOne = new List([1, 0, 1]);
const listTwo = new List([10, 1]);
expect(listOne.compare(listTwo)).toEqual('UNEQUAL');
});
});