Revision bca58b0cef32b342eece2c135fdc62e32b69e557 authored by moz-wptsync-bot on 16 March 2018, 13:38:52 UTC, committed by moz-wptsync-bot on 20 March 2018, 02:29:46 UTC
bugzilla-url: https://bugzilla.mozilla.org/show_bug.cgi?id=1445883 gecko-commit: 0f81334efa0a008db8931a41eef2d26a77d0e800 gecko-integration-branch: mozilla-inbound gecko-reviewers: smaug
1 parent c51eaff
wasm-module-value.html
<!doctype html>
<meta charset="utf8">
<meta name="timeout" content="long">
<title>IndexedDB: WebAssembly module values</title>
<link rel="help" href="https://w3c.github.io/IndexedDB/">
<link rel="help" href="https://webassembly.github.io/spec/">
<link rel="author" href="pwnall@chromium.org" title="Victor Costan">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="support-promises.js"></script>
<script>
'use strict';
// Binary representation for a WASM module that exports an "inc" function.
//
// This test covers storing WASM modules in IndexedDB. Its failure should only
// be debugged if WASM specification tests pass. To this end, the test does not
// use the WASM module builder helpers, trading off WASM debuggability in return
// for having the WASM wire bytes listed explicitly in the test body. Having the
// wire bytes spelled out can be helpful when debugging IndexedDB failures.
let wasm_module_bytes = new Uint8Array([
0x00, 0x61, 0x73, 0x6d, // Magic.
0x01, 0x00, 0x00, 0x00, // Version.
0x01, 0x06, 0x01, // Type section - 6 bytes, 1 entry
0x60, 0x01, 0x7f, 0x01, 0x7f, // Type 0. Function: (i32) -> (i32)
0x03, 0x02, 0x01, // Function section - 2 bytes, 1 entry
0x00, // Function 0: Type 0
0x07, 0x07, 0x01, // Export section - 7 bytes, 1 entry
0x03, 0x69, 0x6e, 0x63, // Export 1. { name: "inc"
0x00, 0x00, // desc: function 0 }
0x0a, 0x09, 0x01, // Code section: 9 bytes, 1 entry
0x07, 0x00, // Function 1: 7 code bytes, 0 locals
0x20, 0x00, // getlocal 0
0x41, 0x01, // i32.const 1
0x6a, // i32.add
0x0b, // end
]);
promise_test(async testCase => {
const wasm_module = await WebAssembly.compile(wasm_module_bytes.buffer);
const database = await createDatabase(testCase, (database, transaction) => {
const store = database.createObjectStore('store');
store.put(wasm_module, 'key1');
});
const result = await new Promise((resolve, reject) => {
const transaction = database.transaction(['store'], 'readonly');
const store = transaction.objectStore('store');
const request = store.get('key1');
request.onsuccess = (event) => resolve(event.target.result);
request.onerror = (event) => reject(event.target.error);
});
database.close();
const instance = await WebAssembly.instantiate(result);
assert_equals(
instance.exports['inc'](42), 43, 'inc should increment its argument');
}, 'WebAssembly module as an IndexedDB value');
promise_test(async testCase => {
const wasm_module = await WebAssembly.compile(wasm_module_bytes.buffer);
const database = await createDatabase(testCase, (database, transaction) => {
const store = database.createObjectStore('store');
store.put({ module: wasm_module }, 'key1');
});
const result = await new Promise((resolve, reject) => {
const transaction = database.transaction(['store'], 'readonly');
const store = transaction.objectStore('store');
const request = store.get('key1');
request.onsuccess = (event) => resolve(event.target.result);
request.onerror = (event) => reject(event.target.error);
});
database.close();
const instance = await WebAssembly.instantiate(result.module);
assert_equals(
instance.exports['inc'](42), 43, 'inc should increment its argument');
}, 'WebAssembly module in a JavaScript object IndexedDB value');
promise_test(async testCase => {
const wasm_module = await WebAssembly.compile(wasm_module_bytes.buffer);
const database = await createDatabase(testCase, (database, transaction) => {
const store = database.createObjectStore('store', { keyPath: 'key' });
store.put({ key: 'key1', module: wasm_module });
});
const result = await new Promise((resolve, reject) => {
const transaction = database.transaction(['store'], 'readonly');
const store = transaction.objectStore('store');
const request = store.get('key1');
request.onsuccess = (event) => resolve(event.target.result);
request.onerror = (event) => reject(event.target.error);
});
database.close();
assert_equals('key1', result.key);
const instance = await WebAssembly.instantiate(result.module);
assert_equals(
instance.exports['inc'](42), 43, 'inc should increment its argument');
}, 'WebAssembly module in an IndexedDB value with an inline key');
</script>
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