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Copy pathtest.slice.js
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66 lines (63 loc) · 1.93 KB
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describe('JSONPath - slice', function () {
const json = {
"name": "root",
"children": {}
};
it('should return empty array if slicing non-array', function () {
const expected = undefined;
const result = jsonpath({json, path: '$.children[1:3]', wrap: false});
assert.deepEqual(result, expected);
});
it('should return objects with slice step', function () {
const jsonWithChildren = {
"name": "root",
"children": [
{a: 1}, {a: 2}, {a: 3}, {a: 4}, {a: 5}, {a: 6}
]
};
const expected = [
{a: 2}, {a: 4}, {a: 6}
];
const result = jsonpath({
json: jsonWithChildren,
path: '$.children[1:6:2]'
});
assert.deepEqual(result, expected);
});
it('should return objects with negative end slice', function () {
const jsonWithChildren = {
"name": "root",
"children": [
{a: 1}, {a: 2}, {a: 3}, {a: 4}, {a: 5}, {a: 6}
]
};
const expected = [
{a: 2}, {a: 3}
];
const result = jsonpath({
json: jsonWithChildren,
path: '$.children[1:-3]'
});
assert.deepEqual(result, expected);
});
it('should return empty array for a slice with an explicit zero end', function () {
const jsonWithChildren = {
"name": "root",
"children": [
{a: 1}, {a: 2}, {a: 3}, {a: 4}, {a: 5}, {a: 6}
]
};
assert.deepEqual(jsonpath({
json: jsonWithChildren,
path: '$.children[:0]'
}), []);
assert.deepEqual(jsonpath({
json: jsonWithChildren,
path: '$.children[2:0]'
}), []);
assert.deepEqual(jsonpath({
json: jsonWithChildren,
path: '$.children[0:0]'
}), []);
});
});