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feat(tests): enhance MicronWasmLoader tests with mock fetch implementation and integrity checks

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This commit is contained in:
Ivan
2026-05-02 23:54:02 -05:00
parent 5142f21a4a
commit 2e25447822
1 changed files with 32 additions and 16 deletions
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tests/frontend/MicronWasmLoader.test.js
+32 -16
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@@ -5,6 +5,36 @@ import {
preloadNomadMicronWasm,
} from "../../meshchatx/src/frontend/js/MicronWasmLoader.js";
function micronTestSriForBuffer(buf, mockExecHashB64, mockWasmHashB64) {
const hashPayloadB64 = buf.byteLength < 1000 ? mockExecHashB64 : mockWasmHashB64;
const binary = atob(hashPayloadB64);
const bytes = new Uint8Array(binary.length);
for (let i = 0; i < binary.length; i++) {
bytes[i] = binary.charCodeAt(i);
}
return `sha384-${btoa(String.fromCharCode(...bytes))}`;
}
function mockMicronWasmFetch(mockExecHash, mockWasmHash) {
return (url) => {
const u = String(url);
if (u.includes("integrity.json")) {
const wasmSri = micronTestSriForBuffer(new ArrayBuffer(4096), mockExecHash, mockWasmHash);
const execSri = micronTestSriForBuffer(new ArrayBuffer(500), mockExecHash, mockWasmHash);
return Promise.resolve({
ok: true,
json: async () => ({ wasm: wasmSri, wasmExec: execSri }),
});
}
const isWasm = u.includes(".wasm");
return Promise.resolve({
ok: true,
arrayBuffer: async () => (isWasm ? new ArrayBuffer(4096) : new ArrayBuffer(500)),
headers: new Headers({ "content-type": isWasm ? "application/wasm" : "application/javascript" }),
});
};
}
describe("MicronWasmLoader.js", () => {
let origBundledFlag;
@@ -131,14 +161,7 @@ describe("MicronWasmLoader.js", () => {
},
});
vi.spyOn(globalThis, "fetch").mockImplementation((url) => {
const isWasm = url.includes(".wasm");
return Promise.resolve({
ok: true,
arrayBuffer: async () => (isWasm ? new ArrayBuffer(4096) : new ArrayBuffer(500)),
headers: new Headers({ "content-type": isWasm ? "application/wasm" : "application/javascript" }),
});
});
vi.spyOn(globalThis, "fetch").mockImplementation(mockMicronWasmFetch(mockExecHash, mockWasmHash));
const streaming = vi
.spyOn(WebAssembly, "instantiateStreaming")
@@ -198,14 +221,7 @@ describe("MicronWasmLoader.js", () => {
},
});
vi.spyOn(globalThis, "fetch").mockImplementation((url) => {
const isWasm = url.includes(".wasm");
return Promise.resolve({
ok: true,
arrayBuffer: async () => (isWasm ? new ArrayBuffer(4096) : new ArrayBuffer(500)),
headers: new Headers({ "content-type": isWasm ? "application/wasm" : "application/javascript" }),
});
});
vi.spyOn(globalThis, "fetch").mockImplementation(mockMicronWasmFetch(mockExecHash, mockWasmHash));
vi.spyOn(WebAssembly, "instantiateStreaming").mockRejectedValue(new Error("streaming failed"));
const instantiate = vi