--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/third_party/libuv/test/runner.h	Wed Jan 14 19:39:52 2026 -0800
@@ -0,0 +1,172 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#ifndef RUNNER_H_
+#define RUNNER_H_
+
+#include <limits.h> /* PATH_MAX */
+#include <stdio.h> /* FILE */
+
+
+/*
+ * The maximum number of processes (main + helpers) that a test / benchmark
+ * can have.
+ */
+#define MAX_PROCESSES 8
+
+
+/*
+ * Struct to store both tests and to define helper processes for tasks.
+ */
+typedef struct {
+  char *task_name;
+  char *process_name;
+  int (*main)(void);
+  int is_helper;
+  int show_output;
+
+  /*
+   * The time in milliseconds after which a single test or benchmark times out.
+   */
+  int timeout;
+} task_entry_t, bench_entry_t;
+
+
+/*
+ * Macros used by test-list.h and benchmark-list.h.
+ */
+#define TASK_LIST_START                             \
+  task_entry_t TASKS[] = {
+
+#define TASK_LIST_END                               \
+    { 0, 0, 0, 0, 0, 0 }                               \
+  };
+
+#define TEST_DECLARE(name)                          \
+  int run_test_##name(void);
+
+#define TEST_ENTRY(name)                            \
+    { #name, #name, &run_test_##name, 0, 0, 5000 },
+
+#define TEST_ENTRY_CUSTOM(name, is_helper, show_output, timeout) \
+    { #name, #name, &run_test_##name, is_helper, show_output, timeout },
+
+#define BENCHMARK_DECLARE(name)                     \
+  int run_benchmark_##name(void);
+
+#define BENCHMARK_ENTRY(name)                       \
+    { #name, #name, &run_benchmark_##name, 0, 0, 60000 },
+
+#define HELPER_DECLARE(name)                        \
+  int run_helper_##name(void);
+
+#define HELPER_ENTRY(task_name, name)               \
+    { #task_name, #name, &run_helper_##name, 1, 0, 0 },
+
+#define TEST_HELPER       HELPER_ENTRY
+#define BENCHMARK_HELPER  HELPER_ENTRY
+
+extern char executable_path[4096];
+
+/*
+ * Include platform-dependent definitions
+ */
+#ifdef _WIN32
+# include "runner-win.h"
+#else
+# include "runner-unix.h"
+#endif
+
+
+/* The array that is filled by test-list.h or benchmark-list.h */
+extern task_entry_t TASKS[];
+
+/*
+ * Run all tests.
+ */
+int run_tests(int benchmark_output);
+
+/*
+ * Run a single test. Starts up any helpers.
+ */
+int run_test(const char* test,
+             int benchmark_output,
+             int test_count);
+
+/*
+ * Run a test part, i.e. the test or one of its helpers.
+ */
+int run_test_part(const char* test, const char* part);
+
+
+/*
+ * Print tests in sorted order to `stream`. Used by `./run-tests --list`.
+ */
+void print_tests(FILE* stream);
+
+/* Print lines in |buffer| as TAP diagnostics to |stream|. */
+int print_lines(const char* buffer, size_t size, FILE* stream, int partial);
+
+/*
+ * Stuff that should be implemented by test-runner-<platform>.h
+ * All functions return 0 on success, -1 on failure, unless specified
+ * otherwise.
+ */
+
+/* Do platform-specific initialization. */
+void platform_init(int argc, char** argv);
+
+/* Invoke "argv[0] test-name [test-part]". Store process info in *p. Make sure
+ * that all stdio output of the processes is buffered up. */
+int process_start(char *name, char* part, process_info_t *p, int is_helper);
+
+/* Wait for all `n` processes in `vec` to terminate. Time out after `timeout`
+ * msec, or never if timeout == -1. Return 0 if all processes are terminated,
+ * -1 on error, -2 on timeout. */
+int process_wait(process_info_t *vec, int n, int timeout);
+
+/* Returns the number of bytes in the stdio output buffer for process `p`. */
+long int process_output_size(process_info_t *p);
+
+/* Copy the contents of the stdio output buffer to `stream`. */
+int process_copy_output(process_info_t* p, FILE* stream);
+
+/* Copy the last line of the stdio output buffer to `buffer` */
+int process_read_last_line(process_info_t *p,
+                           char * buffer,
+                           size_t buffer_len);
+
+/* Return the name that was specified when `p` was started by process_start */
+char* process_get_name(process_info_t *p);
+
+/* Terminate process `p`. */
+int process_terminate(process_info_t *p);
+
+/* Return the exit code of process p. On error, return -1. */
+int process_reap(process_info_t *p);
+
+/* Clean up after terminating process `p` (e.g. free the output buffer etc.). */
+void process_cleanup(process_info_t *p);
+
+/* Move the console cursor one line up and back to the first column. */
+void rewind_cursor(void);
+
+#endif /* RUNNER_H_ */