chore(core/tests): add serial test helper crate

code-rs/Cargo.lock

@@ -1312,6 +1312,7 @@ dependencies = [
  "serde_bytes",
  "serde_json",
  "serde_yaml",
+ "serial_test",
  "sha1",
  "shlex",
  "similar",
@@ -5989,6 +5990,15 @@ dependencies = [
  "winapi-util",
 ]
 
+[[package]]
+name = "scc"
+version = "2.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "46e6f046b7fef48e2660c57ed794263155d713de679057f2d0c169bfc6e756cc"
+dependencies = [
+ "sdd",
+]
+
 [[package]]
 name = "schannel"
 version = "0.1.28"
@@ -6108,6 +6118,12 @@ version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "94143f37725109f92c262ed2cf5e59bce7498c01bcc1502d7b9afe439a4e9f49"
 
+[[package]]
+name = "sdd"
+version = "3.0.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "490dcfcbfef26be6800d11870ff2df8774fa6e86d047e3e8c8a76b25655e41ca"
+
 [[package]]
 name = "seccompiler"
 version = "0.5.0"
@@ -6350,6 +6366,31 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "serial_test"
+version = "3.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1b258109f244e1d6891bf1053a55d63a5cd4f8f4c30cf9a1280989f80e7a1fa9"
+dependencies = [
+ "futures",
+ "log",
+ "once_cell",
+ "parking_lot",
+ "scc",
+ "serial_test_derive",
+]
+
+[[package]]
+name = "serial_test_derive"
+version = "3.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5d69265a08751de7844521fd15003ae0a888e035773ba05695c5c759a6f89eef"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.108",
+]
+
 [[package]]
 name = "sha1"
 version = "0.10.6"

code-rs/core/Cargo.toml

@@ -104,6 +104,7 @@ windows-sys = { version = "0.61.2", features = [
 [dev-dependencies]
 maplit = { workspace = true }
 once_cell = { workspace = true }
+serial_test = "3.2.0"
 pretty_assertions = { workspace = true }
 tokio-test = { workspace = true }
 wiremock = { workspace = true }