mirror of
https://github.com/RGBCube/serenity
synced 2025-10-31 01:52:43 +00:00
da25ac0d48
Previously we would treat the empty string as `null`. This caused
JavaScript like this to fail:
```js
var object = {};
try {
object = JSON.parse("");
} catch {}
var array = object.array || [];
```
Since `JSON.parse("")` returned null instead of throwing, it would set
`object` to null and then try and use it instead of using the default
backup value.
53 lines
1.4 KiB
JavaScript
53 lines
1.4 KiB
JavaScript
test("basic functionality", () => {
|
|
expect(JSON.parse).toHaveLength(2);
|
|
|
|
const properties = [
|
|
["5", 5],
|
|
["null", null],
|
|
["true", true],
|
|
["false", false],
|
|
['"test"', "test"],
|
|
['[1,2,"foo"]', [1, 2, "foo"]],
|
|
['{"foo":1,"bar":"baz"}', { foo: 1, bar: "baz" }],
|
|
];
|
|
|
|
properties.forEach(testCase => {
|
|
expect(JSON.parse(testCase[0])).toEqual(testCase[1]);
|
|
});
|
|
});
|
|
|
|
test("syntax errors", () => {
|
|
[
|
|
undefined,
|
|
NaN,
|
|
-NaN,
|
|
Infinity,
|
|
-Infinity,
|
|
'{ "foo" }',
|
|
'{ foo: "bar" }',
|
|
"[1,2,3,]",
|
|
"[1,2,3, ]",
|
|
'{ "foo": "bar",}',
|
|
'{ "foo": "bar", }',
|
|
"",
|
|
].forEach(test => {
|
|
expect(() => {
|
|
JSON.parse(test);
|
|
}).toThrow(SyntaxError);
|
|
});
|
|
});
|
|
|
|
test("negative zero", () => {
|
|
["-0", " \n-0", "-0 \t", "\n\t -0\n ", "-0.0"].forEach(testCase => {
|
|
expect(JSON.parse(testCase)).toEqual(-0.0);
|
|
});
|
|
|
|
expect(JSON.parse(-0)).toEqual(0);
|
|
});
|
|
|
|
// The underlying parser resolves decimal numbers by storing the decimal portion in an integer
|
|
// This test handles a regression where the decimal portion was only using a u32 vs. u64
|
|
// and would fail to parse.
|
|
test("long decimal parse", () => {
|
|
expect(JSON.parse("1644452550.6489999294281")).toEqual(1644452550.6489999294281);
|
|
});
|