chore: import upstream snapshot with attribution

test/cpp/cinn/common/axis_test.cc

@@ -0,0 +1,45 @@
+// Copyright (c) 2023 CINN Authors. All Rights Reserved.
+//
+// Licensed 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 "paddle/cinn/common/axis.h"
+
+#include <glog/logging.h>
+#include <gtest/gtest.h>
+
+#include <string>
+
+#include "paddle/cinn/utils/string.h"
+
+namespace cinn {
+namespace common {
+
+TEST(AXISNAME, BASE) {
+  ASSERT_EQ(axis_name(0), std::string("i"));
+  ASSERT_EQ(axis_name(1), std::string("j"));
+  ASSERT_EQ(axis_name(22), std::string("ii"));
+  ASSERT_EQ(axis_name(44), std::string("iii"));
+}
+
+TEST(AXISNAME, CHECK_RESERVED) {
+  ASSERT_TRUE(IsAxisNameReserved("i"));
+  ASSERT_TRUE(IsAxisNameReserved("j"));
+  ASSERT_TRUE(IsAxisNameReserved("ii"));
+  ASSERT_TRUE(IsAxisNameReserved("iiiiiiiiii"));
+  ASSERT_FALSE(IsAxisNameReserved("ijk"));
+  ASSERT_FALSE(IsAxisNameReserved("iiiiiiiiiij"));
+  ASSERT_FALSE(IsAxisNameReserved("x"));
+}
+
+}  // namespace common
+}  // namespace cinn