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test-js: Add a helper method to convert a string to a UTF-8 byte array

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In pure JS, we would have to implement a full UTF-8 encoder, so let's
add a helper method to do the work in C++.
This commit is contained in:
Timothy Flynn 2024-07-15 12:28:23 -04:00 • committed by Andreas Kling
parent d265575269
commit dfad1a7329
Notes: github-actions[bot] 2024-09-03 15:47:10 +00:00
1 changed files with 15 additions and 0 deletions
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15
Tests/LibJS/test-js.cpp
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@ -5,8 +5,10 @@
* SPDX-License-Identifier: BSD-2-Clause * SPDX-License-Identifier: BSD-2-Clause
*/ */
#include <AK/Enumerate.h>
#include <LibCore/Environment.h> #include <LibCore/Environment.h>
#include <LibJS/Runtime/ArrayBuffer.h> #include <LibJS/Runtime/ArrayBuffer.h>
#include <LibJS/Runtime/TypedArray.h>
#include <LibTest/JavaScriptTestRunner.h> #include <LibTest/JavaScriptTestRunner.h>
#include <LibUnicode/TimeZone.h> #include <LibUnicode/TimeZone.h>
#include <stdlib.h> #include <stdlib.h>
@ -113,6 +115,19 @@ TESTJS_GLOBAL_FUNCTION(set_time_zone, setTimeZone)
return current_time_zone; return current_time_zone;
} }
TESTJS_GLOBAL_FUNCTION(to_utf8_bytes, toUTF8Bytes)
{
auto& realm = *vm.current_realm();
auto string = TRY(vm.argument(0).to_string(vm));
auto typed_array = TRY(JS::Uint8Array::create(realm, string.bytes().size()));
for (auto [i, byte] : enumerate(string.bytes()))
typed_array->set_value_in_buffer(i, JS::Value { byte }, JS::ArrayBuffer::Order::SeqCst);
return typed_array;
}
TESTJS_RUN_FILE_FUNCTION(ByteString const& test_file, JS::Realm& realm, JS::ExecutionContext&) TESTJS_RUN_FILE_FUNCTION(ByteString const& test_file, JS::Realm& realm, JS::ExecutionContext&)
{ {
if (!test262_parser_tests) if (!test262_parser_tests)