Add support for --features flag in test command

Author: syl20bnr

crates/tracel-xtask-macros/src/lib.rs

@@ -259,6 +259,14 @@ fn get_additional_cmd_args_map() -> HashMap<&'static str, proc_macro2::TokenStre
                     required = false
                 )]
                 pub threads: Option<u16>,
+                #[doc = r"Comma-separated list of features to enable during tests."]
+                #[arg(
+                    long,
+                    value_name = "FEATURE,FEATURE,...",
+                    value_delimiter = ',',
+                    required = false
+                )]
+                pub features: Option<Vec<String>>,
             },
         ),
         (
@@ -478,6 +486,7 @@ fn generate_command_args_tryinto(args: TokenStream, input: TokenStream) -> Token
                 // we can use an inventory (see TODO at the top of the file)
                 if ident_str != "target"
                     && (ident_str == "exclude"
+                        || ident_str == "features"
                         || ident_str == "only"
                         || ident_str == "ignore_audit"
                         || ident_str == "jobs"

crates/tracel-xtask/src/commands/test.rs

@@ -32,6 +32,7 @@ pub fn handle_command(args: TestCmdArgs) -> anyhow::Result<()> {
                     only: args.only.clone(),
                     threads: args.threads,
                     jobs: args.jobs,
+                    features: args.features.clone(),
                 })
             }),
     }
@@ -42,6 +43,11 @@ fn push_optional_args(cmd_args: &mut Vec<String>, args: &TestCmdArgs) {
     if let Some(jobs) = &args.jobs {
         cmd_args.extend(vec!["--jobs".to_string(), jobs.to_string()]);
     };
+    if let Some(features) = &args.features {
+        if !features.is_empty() {
+            cmd_args.extend(vec!["--features".to_string(), features.join(",")]);
+        }
+    }
     // test harness options
     cmd_args.extend(vec!["--".to_string(), "--color=always".to_string()]);
     if let Some(threads) = &args.threads {

crates/tracel-xtask/src/commands/validate.rs

@@ -38,6 +38,7 @@ pub fn handle_command(args: ValidateCmdArgs) -> anyhow::Result<()> {
         threads: None,
         jobs: None,
         command: Some(TestSubCommand::All),
+        features: None,
     })?;
 
     Ok(())