Refactor tracing subscriber initialization

MODULE.bazel

@@ -16,33 +16,33 @@
 
 module(
     name = "score_test_scenarios",
-    version = "0.3.0",
+    version = "0.3.1",
     compatibility_level = 0,
 )
 
 # Starlark language server
-bazel_dep(name = "score_starpls_lsp", version = "0.1.0")
+bazel_dep(name = "score_starpls_lsp", version = "0.1.0", dev_dependency = True)
 
 # Python rules.
-bazel_dep(name = "rules_python", version = "1.0.0")
+bazel_dep(name = "rules_python", version = "1.0.0", dev_dependency = True)
 
 PYTHON_VERSION = "3.12"
 
-python = use_extension("@rules_python//python/extensions:python.bzl", "python")
+python = use_extension("@rules_python//python/extensions:python.bzl", "python", dev_dependency = True)
 python.toolchain(
     is_default = True,
     python_version = PYTHON_VERSION,
 )
 use_repo(python)
 
 # C++ GoogleTest dependencies.
-bazel_dep(name = "googletest", version = "1.14.0")
+bazel_dep(name = "googletest", version = "1.14.0", dev_dependency = True)
 
 # Rust rules.
 bazel_dep(name = "rules_rust", version = "0.56.0")
 
 # C/C++ rules.
-bazel_dep(name = "rules_cc", version = "0.1.1")
+bazel_dep(name = "rules_cc", version = "0.1.1", dev_dependency = True)
 
 # Rust module dependencies.
 rust = use_extension("@rules_rust//rust:extensions.bzl", "rust")
@@ -51,15 +51,8 @@ rust.toolchain(
     versions = ["1.85.0"],
 )
 
-crate = use_extension("@rules_rust//crate_universe:extensions.bzl", "crate")
-crate.from_cargo(
-    name = "test_scenarios_rust_crates",
-    cargo_lockfile = "//test_scenarios_rust:Cargo.lock",
-    manifests = [
-        "//test_scenarios_rust:Cargo.toml",
-    ],
-)
-use_repo(crate, "test_scenarios_rust_crates")
-
 # C++ base libs.
-bazel_dep(name = "score_baselibs", version = "0.1.2")
+bazel_dep(name = "score_baselibs", version = "0.1.2", dev_dependency = True)
+
+# Score Rust crates.
+bazel_dep(name = "score_crates", version = "0.0.4")

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "testing-utils"
-version = "0.3.0"
+version = "0.3.1"
 dependencies = ["pytest>=8.3.5", "pytest-html>=4.1.1", "pytest-repeat>=0.9.4"]
 requires-python = ">=3.12"
 authors = [

test_scenarios_rust/BUILD

@@ -11,18 +11,23 @@
 # SPDX-License-Identifier: Apache-2.0
 # *******************************************************************************
 load("@rules_rust//rust:defs.bzl", "rust_library", "rust_test")
-load("@test_scenarios_rust_crates//:defs.bzl", "all_crate_deps")
 
 rust_library(
     name = "test_scenarios_rust",
     srcs = glob(["src/**/*.rs"]),
     visibility = ["//visibility:public"],
-    deps = all_crate_deps(normal = True),
+    deps = [
+        "@score_crates//:tracing",
+        "@score_crates//:tracing_subscriber",
+    ],
 )
 
 rust_test(
     name = "tests",
     crate = ":test_scenarios_rust",
     visibility = ["//visibility:private"],
-    deps = all_crate_deps(normal = True),
+    deps = [
+        "@score_crates//:tracing",
+        "@score_crates//:tracing_subscriber",
+    ],
 )

test_scenarios_rust/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "test_scenarios_rust"
-version = "0.3.0"
+version = "0.3.1"
 edition = "2021"
 
 [dependencies]

test_scenarios_rust/src/cli.rs

@@ -12,23 +12,21 @@
 // *******************************************************************************
 use crate::monotonic_clock::MonotonicClock;
 use crate::test_context::TestContext;
-use std::sync::Once;
 use tracing::Level;
+use tracing_subscriber::fmt::format::{Format, JsonFields};
 use tracing_subscriber::FmtSubscriber;
 
-/// Tracing subscriber should be initialized only once.
-static TRACING_SUBSCRIBER_INIT: Once = Once::new();
-
-fn init_tracing_subscriber() {
-    let subscriber = FmtSubscriber::builder()
+/// Create a tracing subscriber that outputs logs in JSON format with monotonic timestamps.
+/// # Returns
+/// configured `FmtSubscriber`.
+pub fn create_tracing_subscriber(
+) -> FmtSubscriber<JsonFields, Format<tracing_subscriber::fmt::format::Json, MonotonicClock>> {
+    FmtSubscriber::builder()
         .with_max_level(Level::TRACE)
         .with_thread_ids(true)
         .with_timer(MonotonicClock::new())
         .json()
-        .finish();
-
-    tracing::subscriber::set_global_default(subscriber)
-        .expect("Setting default subscriber failed!");
+        .finish()
 }
 
 /// Test scenario arguments.
@@ -154,11 +152,6 @@ pub fn run_cli_app(raw_arguments: &[String], test_context: &TestContext) -> Resu
         None => return Err("Test scenario input must be provided".to_string()),
     };
 
-    // Initialize tracing subscriber.
-    TRACING_SUBSCRIBER_INIT.call_once(|| {
-        init_tracing_subscriber();
-    });
-
     test_context.run(&scenario_name, &scenario_input)
 }