runa/vscode/test/values.test.ts

import assert from "node:assert/strict";
import test from "node:test";
import { parseValue, formatValue } from "../src/values";
import { REF } from "./fixtures";

test("editing JSON round-trips exact integers, references, null messages and escaped records", () => {
  for (const source of [
    "null",
    "-9223372036854775808",
    "9223372036854775807",
    `{"reserved":[null],"queued":[{"$actor":"${REF}"},{"$record":{"$actor":"literal"}}]}`,
    '{"$record":{"$record":{"value":true}}}',
    '{"__proto__":null}',
  ]) {
    const value = parseValue(source);
    assert.deepEqual(parseValue(formatValue(value)), value);
  }
});

test("natural JSON preserves i64s, string whitespace, markers, and all value variants", () => {
  assert.deepEqual(
    parseValue(
      `{"items":[null,true,-9223372036854775808,9223372036854775807,"two  spaces",{"$actor":"@${REF}"}]}`,
    ),
    {
      type: "record",
      data: {
        items: {
          type: "list",
          data: [
            { type: "null" },
            { type: "bool", data: true },
            { type: "integer", data: -9223372036854775808n },
            { type: "integer", data: 9223372036854775807n },
            { type: "string", data: "two  spaces" },
            { type: "actor_ref", data: REF },
          ],
        },
      },
    },
  );
  assert.deepEqual(parseValue(`"${REF}"`), { type: "string", data: REF });
  assert.deepEqual(parseValue('{"$record":{"$actor":"literal"}}'), {
    type: "record",
    data: { $actor: { type: "string", data: "literal" } },
  });
  assert.deepEqual(parseValue('{"__proto__":null}'), {
    type: "record",
    data: Object.fromEntries([["__proto__", { type: "null" }]]),
  });
});

test("invalid inputs and depth/node/byte overflow fail explicitly", () => {
  for (const source of [
    "",
    "undefined",
    "1.5",
    "1e2",
    "9223372036854775808",
    "-9223372036854775809",
    '{"$actor":"binding"}',
    '{"$actor":1}',
    '{"$record":[]}',
    '{"$record":null}',
    "[".repeat(33) + "null" + "]".repeat(33),
    JSON.stringify(Array(4096).fill(null)),
    JSON.stringify("x".repeat(1024 * 1024)),
  ])
    assert.throws(() => parseValue(source));
  assert.doesNotThrow(() => parseValue("[".repeat(32) + "null" + "]".repeat(32)));
  assert.doesNotThrow(() => parseValue(JSON.stringify(Array(4095).fill(null))));
});