chore: import upstream snapshot with attribution

test/bthread_list_unittest.cpp

@@ -0,0 +1,60 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+#include <gtest/gtest.h>
+#include "butil/time.h"
+#include "butil/macros.h"
+#include "butil/logging.h"
+#include "bthread/task_group.h"
+#include "bthread/bthread.h"
+
+namespace {
+void* sleeper(void* arg) {
+    bthread_usleep((long)arg);
+    return NULL;
+}
+
+TEST(ListTest, join_thread_by_list) {
+    bthread_list_t list;
+    ASSERT_EQ(0, bthread_list_init(&list, 0, 0));
+    std::vector<bthread_t> tids;
+    for (size_t i = 0; i < 10; ++i) {
+        bthread_t th;
+        ASSERT_EQ(0, bthread_start_urgent(
+                      &th, NULL, sleeper, (void*)10000/*10ms*/));
+        ASSERT_EQ(0, bthread_list_add(&list, th));
+        tids.push_back(th);
+    }
+    ASSERT_EQ(0, bthread_list_join(&list));
+    for (size_t i = 0; i < tids.size(); ++i) {
+        ASSERT_FALSE(bthread::TaskGroup::exists(tids[i]));
+    }
+    bthread_list_destroy(&list);
+}
+
+TEST(ListTest, join_a_destroyed_list) {
+    bthread_list_t list;
+    ASSERT_EQ(0, bthread_list_init(&list, 0, 0));
+    bthread_t th;
+    ASSERT_EQ(0, bthread_start_urgent(
+                  &th, NULL, sleeper, (void*)10000/*10ms*/));
+    ASSERT_EQ(0, bthread_list_add(&list, th));
+    ASSERT_EQ(0, bthread_list_join(&list));
+    bthread_list_destroy(&list);
+    ASSERT_EQ(EINVAL, bthread_list_join(&list));
+}
+} // namespace