config-schema: rename schema test module used by datatest

Because the datatests don't use the default libtest harness, datatests
and normal tests cannot be mixed in the same module or even binary.

`test_config_schema` is renamed, both to reflect that it is unlike the
other `test_*` modules, but also to make the name available for "normal"
tests related to the config schema.

Author: jgreitemann

cli/tests/test_config_schema.rs renamed to cli/tests/datatest_config_schema.rs

@@ -1,3 +1,17 @@
+// Copyright 2025 The Jujutsu Authors
+//
+// 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
+//
+// https://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.
+
 use std::path::Path;
 use std::process::Command;
 use std::process::Output;

cli/tests/datatest_runner.rs

@@ -1,18 +1,18 @@
-mod test_config_schema;
+mod datatest_config_schema;
 
 datatest_stable::harness! {
     {
-        test = test_config_schema::taplo_check_config_valid,
+        test = datatest_config_schema::taplo_check_config_valid,
         root = "src/config",
         pattern = r".*\.toml",
     },
     {
-        test = test_config_schema::taplo_check_config_valid,
+        test = datatest_config_schema::taplo_check_config_valid,
         root = "tests/sample-configs/valid",
         pattern = r".*\.toml",
     },
     {
-        test = test_config_schema::taplo_check_config_invalid,
+        test = datatest_config_schema::taplo_check_config_invalid,
         root = "tests/sample-configs/invalid",
         pattern = r".*\.toml",
     }