test_wasm_get_values.js

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/**

 * Any copyright is dedicated to the Public Domain.

 * http://creativecommons.org/publicdomain/zero/1.0/

*/

/* exported testGenerator */

var testGenerator = testSteps();

function* testSteps() {

  const name = "test_wasm_recompile.js";

  const objectStoreName = "Wasm";

  const wasmData = { key: 1 };

  // The goal of this test is to prove that stored wasm is never deserialized.

  info("Installing profile");

  clearAllDatabases(continueToNextStepSync);

  yield undefined;

  // The profile was created with a mythical build (buildId: 20180309213541,

  // cpuId: X64=0x2). It contains one stored wasm module (file id 1 - bytecode

  // and file id 2 - compiled/machine code). The file create_db.js in the

  // package was run locally (specifically it was temporarily added to

  // xpcshell-parent-process.ini and then executed:

  // mach xpcshell-test dom/indexedDB/test/unit/create_db.js

  installPackagedProfile("wasm_get_values_profile");

  info("Opening database");

  let request = indexedDB.open(name);

  request.onerror = errorHandler;

  request.onupgradeneeded = unexpectedSuccessHandler;

  request.onsuccess = continueToNextStepSync;

  yield undefined;

  // success

  let db = request.result;

  db.onerror = errorHandler;

  info("Getting wasm");

  request = db

    .transaction([objectStoreName])

    .objectStore(objectStoreName)

    .get(wasmData.key);

  request.onsuccess = continueToNextStepSync;

  yield undefined;

  info("Verifying wasm");

  let isWasmModule = request.result instanceof WebAssembly.Module;

  ok(!isWasmModule, "Object is not wasm module");

  finishTest();

  yield undefined;