1 files changed, 59 insertions, 0 deletions
diff --git a/dom/indexedDB/test/unit/test_wasm_get_values.js b/dom/indexedDB/test/unit/test_wasm_get_values.js
new file mode 100644
index 0000000000..676cb1662b
--- /dev/null
+++ b/dom/indexedDB/test/unit/test_wasm_get_values.js
@@ -0,0 +1,59 @@
+/**
+ * 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;
+}