[onert] Fix compilation on Ubuntu 25.10 with GCC 15.2.0

Trying to compile generated tests on Ubuntu 25.10 results in a
compilation error due to name clash between test case namespace
and function from the standard library:

> In file included from ../../../../runtime/tests/nnapi/src/generated/all_generated_V1_2_cts_tests.cpp:182:
> ../../../../runtime/tests/nnapi/src/generated/tests/rsqrt.mod.py.cpp:5:11: error: ‘namespace rsqrt { }’ redeclared as different kind of entity
>     5 | namespace rsqrt {
>       |           ^~~~~
> In file included from /usr/include/features.h:523,
>                  from /usr/include/x86_64-linux-gnu/c++/15/bits/os_defines.h:39,
>                  from /usr/include/x86_64-linux-gnu/c++/15/bits/c++config.h:727,
>                  from /usr/include/c++/15/cstddef:51,
>                  from ../../../../runtime/externals/GTEST-1.15.2/googletest/include/gtest/gtest.h:52,
>                  from ../../../../runtime/tests/nnapi/src/generated/tests/../../TestGenerated.h:21,
>                  from ../../../../runtime/tests/nnapi/src/generated/tests/abs_1D_float_nnfw.mod.py.cpp:3,
>                  from ../../../../runtime/tests/nnapi/src/generated/all_generated_V1_2_cts_tests.cpp:4:
> /usr/include/x86_64-linux-gnu/bits/mathcalls.h:206:1: note: previous declaration ‘double rsqrt(double)’

ONE-DCO-1.0-Signed-off-by: Arkadiusz Bokowy <a.bokowy@samsung.com>

Author: arkq

runtime/tests/nnapi/nnapi_test_generator/android-10/cts_generator.py

@@ -99,13 +99,14 @@ def NeedRegenerate():
 def InitializeFiles(model_fd, example_fd, test_fd):
     fileHeader = "// clang-format off\n// Generated file (from: {spec_file}). Do not edit"
     testFileHeader = """\
-#include "../../TestGenerated.h"\n
-namespace {spec_name} {{
+#include "../../TestGenerated.h"
+namespace cts_gen_{spec_name} {{
 // Generated {spec_name} test
 #include "{example_file}"
 // Generated model constructor
 #include "{model_file}"
-}} // namespace {spec_name}\n"""
+}} // namespace cts_gen_{spec_name}
+"""
     # This regex is to remove prefix and get relative path for #include
     # Fix for onert: update path
     pathRegex = r".*(runtime/tests/nnapi/src/)"
@@ -272,13 +273,13 @@ def DumpCtsExample(example, example_fd):
 def DumpCtsTest(example, test_fd):
     testTemplate = """\
 TEST_F({test_case_name}, {test_name}) {{
-    execute({namespace}::{create_model_name},
-            {namespace}::{is_ignored_name},
-            {namespace}::get_{examples_name}(){log_file});\n}}\n"""
-    # Fix for onert: Remove version check
-    #if example.model.version is not None:
-        #testTemplate += """\
-#TEST_AVAILABLE_SINCE({version}, {test_name}, {namespace}::{create_model_name})\n"""
+    execute(cts_gen_{namespace}::{create_model_name},
+            cts_gen_{namespace}::{is_ignored_name},
+            cts_gen_{namespace}::get_{examples_name}(){log_file});\n}}\n"""
+# Fix for onert: Remove version check
+#     if example.model.version is not None:
+#         testTemplate += """\
+# TEST_AVAILABLE_SINCE({version}, {test_name}, {namespace}::{create_model_name})\n"""
     print(testTemplate.format(
         test_case_name="DynamicOutputShapeTest" if example.model.hasDynamicOutputShape \
                        else "GeneratedTests",

runtime/tests/nnapi/nnapi_test_generator/android-10/vts_generator.py

@@ -1,6 +1,7 @@
 #!/usr/bin/env python3
 #
 # Copyright 2017, The Android Open Source Project
+# Copyright 2026, Samsung Electronics Co., Ltd. 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.
@@ -271,15 +272,17 @@ def generate_vts_test(example, test_file):
     testTemplate = """\
 TEST_F({test_case_name}, {test_name}) {{
   generated_tests::Execute(device,
-                           {namespace}::{create_model_name},
-                           {namespace}::{is_ignored_name},
-                           {namespace}::get_{examples_name}(){test_dynamic_output_shape});\n}}
+                           vts_gen_{namespace}::{create_model_name},
+                           vts_gen_{namespace}::{is_ignored_name},
+                           vts_gen_{namespace}::get_{examples_name}(){test_dynamic_output_shape});
+}}
 
 TEST_F(ValidationTest, {test_name}) {{
-  const Model model = {namespace}::{create_model_name}();
-  const std::vector<Request> requests = createRequests({namespace}::get_{examples_name}());
+  const Model model = vts_gen_{namespace}::{create_model_name}();
+  const std::vector<Request> requests = createRequests(vts_gen_{namespace}::get_{examples_name}());
   validateEverything(model, requests);
-}}\n
+}}
+
 """
     if example.model.hasDynamicOutputShape:
         print("#ifdef NN_TEST_DYNAMIC_OUTPUT_SHAPE", file=test_fd)
@@ -300,12 +303,12 @@ def InitializeFiles(model_fd, example_fd, test_fd):
     fileHeader = "// clang-format off\n// Generated file (from: {spec_file}). Do not edit"
     testFileHeader = """\
 // Generated from: {spec_file}.
-namespace {spec_name} {{
+namespace vts_gen_{spec_name} {{
 // Generated {spec_name} test
 #include "{example_file}"
 // Generated model constructor
 #include "{model_file}"
-}} // namespace {spec_name}\n"""
+}} // namespace vts_gen_{spec_name}\n"""
     # This regex is to remove prefix and get relative path for #include
     pathRegex = r".*frameworks/ml/nn/(runtime/test/generated/)?"
     specFileBase = os.path.basename(tg.FileNames.specFile)

runtime/tests/nnapi/specs/generate_vts_test.sh

@@ -1,5 +1,8 @@
+#!/bin/bash
+
 #
 # Copyright (C) 2017 The Android Open Source Project
+# Copyright (C) 2026 Samsung Electronics Co., Ltd. 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.
@@ -29,20 +32,20 @@ function generate_one_testcase {
     -e $VTS_PATH/generated/examples/$BASENAME.example.cpp
   # Paste these lines into TestGenerated.cpp
   echo
-  echo namespace $BASENAME {
-  echo std::vector\<MixedTypedExample\> examples \= {
-  echo // Generated $BASENAME test
-  echo \#include \"examples/$BASENAME.example.cpp\"
-  echo }\;
-  echo // Generated model constructor
-  echo \#include \"vts_models/$BASENAME.model.cpp\"
-  echo }  // namespace $BASENAME
-  echo TEST_F\(NeuralnetworksHidlTest\, $BASENAME\) {
-  echo '    generated_tests::Execute'\(device,
-  echo '                             '$BASENAME\:\:createTestModel\,
-  echo '                             '$BASENAME\:\:is_ignored\,
-  echo '                             '$BASENAME\:\:examples\)\;
-  echo }
+  echo "namespace vts_gen_$BASENAME {"
+  echo "std::vector<MixedTypedExample> examples = {"
+  echo "// Generated $BASENAME test"
+  echo "#include \"examples/$BASENAME.example.cpp\""
+  echo "};"
+  echo "// Generated model constructor"
+  echo "#include \"vts_models/$BASENAME.model.cpp\""
+  echo "} // namespace vts_gen_$BASENAME"
+  echo "TEST_F(NeuralnetworksHidlTest, $BASENAME) {"
+  echo "    generated_tests::Execute(device,"
+  echo "                             vts_gen_$BASENAME::createTestModel,"
+  echo "                             vts_gen_$BASENAME::is_ignored,"
+  echo "                             vts_gen_$BASENAME::examples);"
+  echo "}"
 }
 
 for ver in $NNAPI_VERSION;