Run V8 spec conformance test suite (#243)

The shell script runs the tests and diffs stdout against v8.txt.
Lines added/removed means tests were broken/fixed.

Future work is to a) fix failing tests, and b) enable more tests.

A number are disabled for various reasons and mjsunit subdirectories are
currently skipped. Need to decide on a case-by-case basis what is and
isn't relevant to us.

At the moment about 430 tests are run of which approx. 80% pass.
This commit is contained in:
Ben Noordhuis 2024-01-02 07:47:40 +01:00 committed by GitHub
parent 9f9bf3c9ab
commit 4b138c8923
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GPG key ID: 4AEE18F83AFDEB23
7 changed files with 1928 additions and 5 deletions

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@ -38,6 +38,10 @@ jobs:
if: ${{ matrix.buildType == 'Release' }}
run: |
time make test262
- name: test v8 mjsunit
if: ${{ matrix.buildType == 'Release' }}
run: |
./v8.sh
linux-32bits:
runs-on: ubuntu-latest
defaults:

27
qjs.c
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@ -41,6 +41,8 @@
extern const uint8_t qjsc_repl[];
extern const uint32_t qjsc_repl_size;
static JSCFunctionListEntry argv0;
static int eval_buf(JSContext *ctx, const void *buf, int buf_len,
const char *filename, int eval_flags)
{
@ -94,6 +96,22 @@ static int eval_file(JSContext *ctx, const char *filename, int module)
return ret;
}
static JSValue js_gc(JSContext *ctx, JSValue this_val,
int argc, JSValue *argv)
{
JS_RunGC(JS_GetRuntime(ctx));
return JS_UNDEFINED;
}
static const JSCFunctionListEntry navigator_obj[] = {
JS_PROP_STRING_DEF("userAgent", "quickjs-ng", JS_PROP_ENUMERABLE),
};
static const JSCFunctionListEntry global_obj[] = {
JS_CFUNC_DEF("gc", 0, js_gc),
JS_OBJECT_DEF("navigator", navigator_obj, countof(navigator_obj), JS_PROP_C_W_E),
};
/* also used to initialize the worker context */
static JSContext *JS_NewCustomContext(JSRuntime *rt)
{
@ -105,11 +123,9 @@ static JSContext *JS_NewCustomContext(JSRuntime *rt)
js_init_module_std(ctx, "std");
js_init_module_os(ctx, "os");
/* navigator.userAgent */
JSValue global = JS_GetGlobalObject(ctx);
JSValue navigator = JS_NewObject(ctx);
JS_DefinePropertyValueStr(ctx, navigator, "userAgent", JS_NewString(ctx, "quickjs-ng"), JS_PROP_ENUMERABLE);
JS_DefinePropertyValueStr(ctx, global, "navigator", navigator, JS_PROP_ENUMERABLE);
JS_SetPropertyFunctionList(ctx, global, global_obj, countof(global_obj));
JS_SetPropertyFunctionList(ctx, global, &argv0, 1);
JS_FreeValue(ctx, global);
return ctx;
@ -283,6 +299,9 @@ int main(int argc, char **argv)
int i, include_count = 0;
size_t stack_size = 0;
argv0 = (JSCFunctionListEntry)JS_PROP_STRING_DEF("argv0", argv[0],
JS_PROP_C_W_E);
/* cannot use getopt because we want to pass the command line to
the script */
optind = 1;

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@ -3739,7 +3739,7 @@ JSModuleDef *js_init_module_os(JSContext *ctx, const char *module_name)
/**********************************************************/
static JSValue js_print(JSContext *ctx, JSValue this_val,
int argc, JSValue *argv)
int argc, JSValue *argv)
{
int i;
const char *str;
@ -3755,6 +3755,7 @@ static JSValue js_print(JSContext *ctx, JSValue this_val,
JS_FreeCString(ctx, str);
}
putchar('\n');
fflush(stdout);
return JS_UNDEFINED;
}

11
v8-tweak.js Normal file
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@ -0,0 +1,11 @@
;(function() {
"use strict"
const print = globalThis.print
globalThis.print = function() {} // print nothing, v8 tests are chatty
let count = 0 // rate limit to avoid excessive logs
globalThis.failWithMessage = function(message) {
if (count > 99) return
if (++count > 99) return print("<output elided>")
print(String(message).slice(0, 128))
}
})()

52
v8.js Normal file
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@ -0,0 +1,52 @@
import * as std from "std"
import * as os from "os"
argv0 = realpath(argv0)
const tweak = realpath("v8-tweak.js")
const dir = "test262/implementation-contributed/v8/mjsunit"
const exclude = [
"array-concat.js", // slow
"array-isarray.js", // unstable output due to stack overflow
"ascii-regexp-subject.js", // slow
"cyclic-array-to-string.js", // unstable output due to stack overflow
"error-tostring.js", // unstable output due to stack overflow
"regexp.js", // invalid, legitimate early SyntaxError
"regexp-capture-3.js", // slow
"string-replace.js", // unstable output
"mjsunit-assertion-error.js",
"mjsunit.js",
"mjsunit_suppressions.js",
"verify-assert-false.js", // self check
"verify-check-false.js", // self check
]
let files = scriptArgs.slice(1) // run only these tests
if (files.length === 0) files = os.readdir(dir)[0].sort()
for (const file of files) {
if (!file.endsWith(".js")) continue
if (exclude.includes(file)) continue
const source = std.loadFile(dir + "/" + file)
if (/^(im|ex)port/m.test(source)) continue // TODO support modules
if (source.includes('// Files:')) continue // TODO support includes
// exclude tests that use V8 intrinsics like %OptimizeFunctionOnNextCall
if (source.includes ("--allow-natives-syntax")) continue
// exclude tests that use V8 extensions
if (source.includes ("--expose-externalize-string")) continue
const env =
source.match(/environment variables:.*TZ=(?<TZ>[\S]+)/i)?.groups
print(`=== ${file}`)
// the fixed --stack-size is necessary to keep output of stack overflowing
// tests stable; their stack traces are somewhat arbitrary otherwise
const args = [argv0, "--stack-size", `${2048 * 1024}`,
"-I", "mjsunit.js", "-I", tweak, file]
const opts = {block:true, cwd:dir, env:env, usePath:false}
os.exec(args, opts)
}
function realpath(path) {
return os.realpath(path)[0]
}

6
v8.sh Executable file
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@ -0,0 +1,6 @@
#!/bin/sh
set -e
: ${QJS:=build/qjs}
"$QJS" v8.js $* 2>&1 | tee v8.txt$$
diff -uw v8.txt v8.txt$$ || exit 1
rm v8.txt$$

1830
v8.txt Normal file

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