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133 lines
3.5 KiB
JavaScript
133 lines
3.5 KiB
JavaScript
/**
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* Any copyright is dedicated to the Public Domain.
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* http://creativecommons.org/publicdomain/zero/1.0/
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*/
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var testGenerator = testSteps();
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function* testSteps()
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{
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const name = "test_wasm_recompile.js";
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const objectStoreName = "Wasm";
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const wasmData = { key: 1, wasm: null };
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// The goal of this test is to prove that wasm is recompiled and the on-disk
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// copy updated.
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if (!isWasmSupported()) {
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finishTest();
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yield undefined;
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}
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getWasmBinary('(module (func $f (result i32) (i32.const 42)) (func (export "run") (result i32) (call $f)))');
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let binary = yield undefined;
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wasmData.wasm = getWasmModule(binary);
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info("Installing profile");
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clearAllDatabases(continueToNextStepSync);
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yield undefined;
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// The profile was created with a mythical build (buildId: 20180309213541,
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// cpuId: X64=0x2). It contains one stored wasm module (file id 1 - bytecode
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// and file id 2 - compiled/machine code). The file create_db.js in the
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// package was run locally (specifically it was temporarily added to
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// xpcshell-parent-process.ini and then executed:
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// mach xpcshell-test dom/indexedDB/test/unit/create_db.js
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installPackagedProfile("wasm_recompile_profile");
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let filesDir = getChromeFilesDir();
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let file = filesDir.clone();
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file.append("2");
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info("Reading out contents of compiled blob");
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File.createFromNsIFile(file).then(grabEventAndContinueHandler);
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let domFile = yield undefined;
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let fileReader = new FileReader();
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fileReader.onload = continueToNextStepSync;
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fileReader.readAsArrayBuffer(domFile);
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yield undefined;
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let compiledBuffer = fileReader.result;
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info("Opening database");
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let request = indexedDB.open(name);
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request.onerror = errorHandler;
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request.onupgradeneeded = unexpectedSuccessHandler;
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request.onsuccess = continueToNextStepSync;
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yield undefined;
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// success
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let db = request.result;
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db.onerror = errorHandler;
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info("Getting wasm");
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request = db.transaction([objectStoreName])
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.objectStore(objectStoreName).get(wasmData.key);
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request.onsuccess = continueToNextStepSync;
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yield undefined;
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info("Verifying wasm module");
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verifyWasmModule(request.result, wasmData.wasm);
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yield undefined;
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info("Reading out contents of new compiled blob");
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File.createFromNsIFile(file).then(grabEventAndContinueHandler);
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domFile = yield undefined;
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fileReader = new FileReader();
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fileReader.onload = continueToNextStepSync;
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fileReader.readAsArrayBuffer(domFile);
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yield undefined;
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let newCompiledBuffer = fileReader.result;
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info("Verifying that re-storing of re-compiled code has been disabled");
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ok(compareBuffers(newCompiledBuffer, compiledBuffer), "Blobs don't differ");
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info("Getting wasm again");
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request = db.transaction([objectStoreName])
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.objectStore(objectStoreName).get(wasmData.key);
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request.onsuccess = continueToNextStepSync;
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yield undefined;
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info("Verifying wasm module");
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verifyWasmModule(request.result, wasmData.wasm);
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yield undefined;
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info("Reading out contents of new compiled blob again");
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File.createFromNsIFile(file).then(grabEventAndContinueHandler);
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domFile = yield undefined;
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fileReader = new FileReader();
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fileReader.onload = continueToNextStepSync;
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fileReader.readAsArrayBuffer(domFile);
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yield undefined;
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let newCompiledBuffer2 = fileReader.result;
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info("Verifying blob didn't change");
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ok(compareBuffers(newCompiledBuffer2, newCompiledBuffer),
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"Blob didn't change");
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finishTest();
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yield undefined;
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}
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