Run test262 tests in CI

Run test262 tests for Linux, macOS and Cosmopolitan

Add a Makefile `test2-bootstrap` helper to clone and patch test262 tests at
a particular commit. Running with the latest commit noticed a few tests were
failing and added them to the errors list.

The CI environment, especially for macOS, was a bit more unpredictable and was
failing in atomics tests due to lower timeouts in the `atomicsHelper` so double
the timeouts. The time didn't worsen too much. It still takes about 2-3 min.

Changelog

@@ -1,5 +1,3 @@
-2025-09-13:
-
 - added JSON modules and import attributes
 - added JS_PrintValue() API
 - qjs: pretty print objects in print() and console.log()
@@ -14,7 +12,6 @@
   accept JSON5 modules
 - added JS_FreePropertyEnum() and JS_AtomToCStringLen() API
 - added Error.isError()
-- misc bug fixes
 
 2025-04-26:
 

Makefile

@@ -55,8 +55,8 @@ PREFIX?=/usr/local
 #CONFIG_UBSAN=y
 
 # TEST262 bootstrap config: commit id and shallow "since" parameter
-TEST262_COMMIT?=af3d908437b0912513a594e7167f17658e72d88b
-TEST262_SINCE?=2025-09-14
+TEST262_COMMIT?=3fd4ec27f1798ebecafc73b354a45dcdda9bde29
+TEST262_SINCE?=2025-08-25
 
 OBJDIR=.obj
 

VERSION

@@ -1 +1 @@
-2025-09-13
+2025-04-26

quickjs.c

@@ -13002,6 +13002,73 @@ static JSValue JS_ToStringCheckObject(JSContext *ctx, JSValueConst val)
     return JS_ToString(ctx, val);
 }
 
+static JSValue JS_ToQuotedString(JSContext *ctx, JSValueConst val1)
+{
+    JSValue val;
+    JSString *p;
+    int i;
+    uint32_t c;
+    StringBuffer b_s, *b = &b_s;
+    char buf[16];
+
+    val = JS_ToStringCheckObject(ctx, val1);
+    if (JS_IsException(val))
+        return val;
+    p = JS_VALUE_GET_STRING(val);
+
+    if (string_buffer_init(ctx, b, p->len + 2))
+        goto fail;
+
+    if (string_buffer_putc8(b, '\"'))
+        goto fail;
+    for(i = 0; i < p->len; ) {
+        c = string_getc(p, &i);
+        switch(c) {
+        case '\t':
+            c = 't';
+            goto quote;
+        case '\r':
+            c = 'r';
+            goto quote;
+        case '\n':
+            c = 'n';
+            goto quote;
+        case '\b':
+            c = 'b';
+            goto quote;
+        case '\f':
+            c = 'f';
+            goto quote;
+        case '\"':
+        case '\\':
+        quote:
+            if (string_buffer_putc8(b, '\\'))
+                goto fail;
+            if (string_buffer_putc8(b, c))
+                goto fail;
+            break;
+        default:
+            if (c < 32 || is_surrogate(c)) {
+                snprintf(buf, sizeof(buf), "\\u%04x", c);
+                if (string_buffer_puts8(b, buf))
+                    goto fail;
+            } else {
+                if (string_buffer_putc(b, c))
+                    goto fail;
+            }
+            break;
+        }
+    }
+    if (string_buffer_putc8(b, '\"'))
+        goto fail;
+    JS_FreeValue(ctx, val);
+    return string_buffer_end(b);
+ fail:
+    JS_FreeValue(ctx, val);
+    string_buffer_free(b);
+    return JS_EXCEPTION;
+}
+
 #define JS_PRINT_MAX_DEPTH 8
 
 typedef struct {
@@ -13059,61 +13126,18 @@ static uint32_t js_string_get_length(JSValueConst val)
     }
 }
 
-/* pretty print the first 'len' characters of 'p' */
-static void js_print_string1(JSPrintValueState *s, JSString *p, int len, int sep)
+static void js_dump_char(JSPrintValueState *s, int c, int sep)
 {
-    uint8_t buf[UTF8_CHAR_LEN_MAX];
-    int l, i, c, c1;
-
-    for(i = 0; i < len; i++) {
-        c = string_get(p, i);
-        switch(c) {
-        case '\t':
-            c = 't';
-            goto quote;
-        case '\r':
-            c = 'r';
-            goto quote;
-        case '\n':
-            c = 'n';
-            goto quote;
-        case '\b':
-            c = 'b';
-            goto quote;
-        case '\f':
-            c = 'f';
-            goto quote;
-        case '\\':
-        quote:
+    if (c == sep || c == '\\') {
         js_putc(s, '\\');
         js_putc(s, c);
-            break;
-        default:
-            if (c == sep)
-                goto quote;
-            if (c >= 32 && c <= 126) {
+    } else if (c >= ' ' && c <= 126) {
         js_putc(s, c);
-            } else if (c < 32 || 
-                       (c >= 0x7f && c <= 0x9f)) {
-            escape:
-                js_printf(s, "\\u%04x", c);
+    } else if (c == '\n') {
+        js_putc(s, '\\');
+        js_putc(s, 'n');
     } else {
-                if (is_hi_surrogate(c)) {
-                    if ((i + 1) >= len)
-                        goto escape;
-                    c1 = string_get(p, i + 1);
-                    if (!is_lo_surrogate(c1))
-                        goto escape;
-                    i++;
-                    c = from_surrogate(c, c1);
-                } else if (is_lo_surrogate(c)) {
-                    goto escape;
-                }
-                l = unicode_to_utf8(buf, c);
-                s->write_func(s->write_opaque, (char *)buf, l);
-            }
-            break;
-        }
+        js_printf(s, "\\u%04x", c);
     }
 }
 
@@ -13122,10 +13146,12 @@ static void js_print_string_rec(JSPrintValueState *s, JSValueConst val,
 {
     if (JS_VALUE_GET_TAG(val) == JS_TAG_STRING) {
         JSString *p = JS_VALUE_GET_STRING(val);
-        uint32_t len;
+        uint32_t i, len;
         if (pos < s->options.max_string_length) {
             len = min_uint32(p->len, s->options.max_string_length - pos);
-            js_print_string1(s, p, len, sep);
+            for(i = 0; i < len; i++) {
+                js_dump_char(s, string_get(p, i), sep);
+            }
         }
     } else if (JS_VALUE_GET_TAG(val) == JS_TAG_STRING_ROPE) {
         JSStringRope *r = JS_VALUE_GET_PTR(val);
@@ -13198,7 +13224,9 @@ static void js_print_atom(JSPrintValueState *s, JSAtom atom)
             }
         } else {
             js_putc(s, '"');
-            js_print_string1(s, p, p->len, '\"');
+            for(i = 0; i < p->len; i++) {
+                js_dump_char(s, string_get(p, i), '\"');
+            }
             js_putc(s, '"');
         }
     }
@@ -34924,7 +34952,6 @@ static void free_function_bytecode(JSRuntime *rt, JSFunctionBytecode *b)
                JS_AtomGetStrRT(rt, buf, sizeof(buf), b->func_name));
     }
 #endif
-    if (b->byte_code_buf)
     free_bytecode_atoms(rt, b->byte_code_buf, b->byte_code_len, TRUE);
 
     if (b->vardefs) {
@@ -43832,6 +43859,12 @@ static JSValue js_string_trim(JSContext *ctx, JSValueConst this_val,
     return ret;
 }
 
+static JSValue js_string___quote(JSContext *ctx, JSValueConst this_val,
+                                 int argc, JSValueConst *argv)
+{
+    return JS_ToQuotedString(ctx, this_val);
+}
+
 /* return 0 if before the first char */
 static int string_prevc(JSString *p, int *pidx)
 {
@@ -44319,6 +44352,7 @@ static const JSCFunctionListEntry js_string_proto_funcs[] = {
     JS_ALIAS_DEF("trimLeft", "trimStart" ),
     JS_CFUNC_DEF("toString", 0, js_string_toString ),
     JS_CFUNC_DEF("valueOf", 0, js_string_toString ),
+    JS_CFUNC_DEF("__quote", 1, js_string___quote ),
     JS_CFUNC_MAGIC_DEF("toLowerCase", 0, js_string_toLowerCase, 1 ),
     JS_CFUNC_MAGIC_DEF("toUpperCase", 0, js_string_toLowerCase, 0 ),
     JS_CFUNC_MAGIC_DEF("toLocaleLowerCase", 0, js_string_toLowerCase, 1 ),
@@ -46633,72 +46667,10 @@ typedef struct JSONStringifyContext {
     StringBuffer *b;
 } JSONStringifyContext;
 
-static int JS_ToQuotedString(JSContext *ctx, StringBuffer *b, JSValueConst val1)
-{
-    JSValue val;
-    JSString *p;
-    int i;
-    uint32_t c;
-    char buf[16];
-
-    val = JS_ToStringCheckObject(ctx, val1);
-    if (JS_IsException(val))
-        return -1;
-    p = JS_VALUE_GET_STRING(val);
-
-    if (string_buffer_putc8(b, '\"'))
-        goto fail;
-    for(i = 0; i < p->len; ) {
-        c = string_getc(p, &i);
-        switch(c) {
-        case '\t':
-            c = 't';
-            goto quote;
-        case '\r':
-            c = 'r';
-            goto quote;
-        case '\n':
-            c = 'n';
-            goto quote;
-        case '\b':
-            c = 'b';
-            goto quote;
-        case '\f':
-            c = 'f';
-            goto quote;
-        case '\"':
-        case '\\':
-        quote:
-            if (string_buffer_putc8(b, '\\'))
-                goto fail;
-            if (string_buffer_putc8(b, c))
-                goto fail;
-            break;
-        default:
-            if (c < 32 || is_surrogate(c)) {
-                snprintf(buf, sizeof(buf), "\\u%04x", c);
-                if (string_buffer_puts8(b, buf))
-                    goto fail;
-            } else {
-                if (string_buffer_putc(b, c))
-                    goto fail;
-            }
-            break;
-        }
-    }
-    if (string_buffer_putc8(b, '\"'))
-        goto fail;
+static JSValue JS_ToQuotedStringFree(JSContext *ctx, JSValue val) {
+    JSValue r = JS_ToQuotedString(ctx, val);
     JS_FreeValue(ctx, val);
-    return 0;
- fail:
-    JS_FreeValue(ctx, val);
-    return -1;
-}
-
-static int JS_ToQuotedStringFree(JSContext *ctx, StringBuffer *b, JSValue val) {
-    int ret = JS_ToQuotedString(ctx, b, val);
-    JS_FreeValue(ctx, val);
-    return ret;
+    return r;
 }
 
 static JSValue js_json_check(JSContext *ctx, JSONStringifyContext *jsc,
@@ -46881,11 +46853,13 @@ static int js_json_to_str(JSContext *ctx, JSONStringifyContext *jsc,
                 if (!JS_IsUndefined(v)) {
                     if (has_content)
                         string_buffer_putc8(jsc->b, ',');
-                    string_buffer_concat_value(jsc->b, sep);
-                    if (JS_ToQuotedString(ctx, jsc->b, prop)) {
+                    prop = JS_ToQuotedStringFree(ctx, prop);
+                    if (JS_IsException(prop)) {
                         JS_FreeValue(ctx, v);
                         goto exception;
                     }
+                    string_buffer_concat_value(jsc->b, sep);
+                    string_buffer_concat_value(jsc->b, prop);
                     string_buffer_putc8(jsc->b, ':');
                     string_buffer_concat_value(jsc->b, sep1);
                     if (js_json_to_str(ctx, jsc, val, v, indent1))
@@ -46913,7 +46887,10 @@ static int js_json_to_str(JSContext *ctx, JSONStringifyContext *jsc,
     switch (JS_VALUE_GET_NORM_TAG(val)) {
     case JS_TAG_STRING:
     case JS_TAG_STRING_ROPE:
-        return JS_ToQuotedStringFree(ctx, jsc->b, val);
+        val = JS_ToQuotedStringFree(ctx, val);
+        if (JS_IsException(val))
+            goto exception;
+        goto concat_value;
     case JS_TAG_FLOAT64:
         if (!isfinite(JS_VALUE_GET_FLOAT64(val))) {
             val = JS_NULL;

tests/test_bjson.js

@@ -86,7 +86,7 @@ function toStr(a)
     case "undefined":
         return "undefined";
     case "string":
-        return JSON.stringify(a);
+        return a.__quote();
     case "number":
         if (a == 0 && 1 / a < 0)
             return "-0";