clawbot
cd730241bb
lookupTokenInfo() cut the symbol at 12 and the name at 64 UTF-16 units, so an emoji outside the Basic Multilingual Plane could be cut between its two halves and the half left over stored and shown as U+FFFD. Both are now cut on code points, as displaySymbol() does. A symbol already stored broken is not repaired. Model: opus-5-5
49 lines
1.6 KiB
JavaScript
49 lines
1.6 KiB
JavaScript
// lookupTokenInfo() cuts the symbol and name it reads off a contract on
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// code-point boundaries, as displaySymbol() counts them, so an emoji outside
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// the Basic Multilingual Plane is never stored cut in half
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// (https://git.eeqj.de/sneak/AutistMask/issues/458).
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// An emoji outside the Basic Multilingual Plane: two UTF-16 units.
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const FOX = "\u{1F98A}";
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// The leading "A" puts every emoji at an odd UTF-16 offset, so a cut that
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// counts UTF-16 units lands between the two halves of one.
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const SYMBOL = "A" + FOX.repeat(12);
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const NAME = "A" + FOX.repeat(64);
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// The contract answers symbol(), decimals() and name() with the values above.
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jest.doMock("ethers", () => ({
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...jest.requireActual("ethers"),
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Contract: function () {
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return {
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symbol: async () => SYMBOL,
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decimals: async () => 18n,
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name: async () => NAME,
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};
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},
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}));
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const { lookupTokenInfo } = require("../src/shared/balances");
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const ADDRESS = "0x1111111111111111111111111111111111111111";
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const RPC_URL = "https://rpc.example.invalid";
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beforeEach(() => {
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// A token found is logged at info level, which is not under test.
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jest.spyOn(console, "log").mockImplementation(() => {});
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});
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afterEach(() => {
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jest.restoreAllMocks();
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});
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test("the symbol is cut to 12 code points, never inside an emoji", async () => {
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const { symbol } = await lookupTokenInfo(ADDRESS, RPC_URL, "mainnet");
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expect(symbol).toBe("A" + FOX.repeat(11));
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});
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test("the name is cut to 64 code points, never inside an emoji", async () => {
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const { name } = await lookupTokenInfo(ADDRESS, RPC_URL, "mainnet");
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expect(name).toBe("A" + FOX.repeat(63));
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});
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