fix(harness)!: Always include json support

crates/libtest2-harness/Cargo.toml

@@ -26,7 +26,6 @@ pre-release-replacements = [
 [features]
 default = []
 color = ["dep:anstream", "dep:anstyle"]
-json = ["libtest-json/json"]
 threads = []
 
 [dependencies]
@@ -35,7 +34,7 @@ lexarg-error = { version = "0.0.1", path = "../lexarg-error" }
 libtest-lexarg = { version = "0.0.1", path = "../libtest-lexarg" }
 anstream = { version = "0.6.4", optional = true }
 anstyle = { version = "1.0.10", optional = true }
-libtest-json = { version = "0.0.1", path = "../libtest-json" }
+libtest-json = { version = "0.0.1", path = "../libtest-json", features = ["json"] }
 
 [dev-dependencies]
 

crates/libtest2-harness/src/harness.rs

@@ -68,10 +68,7 @@ impl Harness<StateArgs> {
         }
         .write_global();
 
-        let notifier = notifier(&opts).unwrap_or_else(|err| {
-            eprintln!("{err}");
-            std::process::exit(1)
-        });
+        let notifier = notifier(&opts);
 
         Ok(Harness {
             state: StateParsed {
@@ -228,26 +225,17 @@ fn parse_argfile(path: &std::path::Path) -> std::io::Result<Vec<std::ffi::OsStri
     Ok(content.lines().map(|s| s.into()).collect())
 }
 
-fn notifier(opts: &libtest_lexarg::TestOpts) -> std::io::Result<Box<dyn notify::Notifier>> {
+fn notifier(opts: &libtest_lexarg::TestOpts) -> Box<dyn notify::Notifier> {
     #[cfg(feature = "color")]
     let stdout = anstream::stdout();
     #[cfg(not(feature = "color"))]
     let stdout = std::io::stdout();
-    let notifier: Box<dyn notify::Notifier> = match opts.format {
-        #[cfg(feature = "json")]
+    match opts.format {
         OutputFormat::Json => Box::new(notify::JsonNotifier::new(stdout)),
-        #[cfg(not(feature = "json"))]
-        OutputFormat::Json => {
-            return Err(std::io::Error::new(
-                std::io::ErrorKind::Other,
-                "`--format=json` is not supported",
-            ));
-        }
         _ if opts.list => Box::new(notify::TerseListNotifier::new(stdout)),
         OutputFormat::Pretty => Box::new(notify::PrettyRunNotifier::new(stdout)),
         OutputFormat::Terse => Box::new(notify::TerseRunNotifier::new(stdout)),
-    };
-    Ok(notifier)
+    }
 }
 
 fn discover(

crates/libtest2-harness/src/lib.rs

@@ -1,7 +1,7 @@
 //! An experimental replacement for the core of libtest
 
 #![cfg_attr(docsrs, feature(doc_auto_cfg))]
-// #![warn(clippy::print_stderr)]
+#![warn(clippy::print_stderr)]
 // #![warn(clippy::print_stdout)]
 
 mod case;

crates/libtest2-harness/src/notify/mod.rs

@@ -1,4 +1,3 @@
-#[cfg(feature = "json")]
 mod json;
 #[cfg(not(feature = "color"))]
 mod no_style;
@@ -8,7 +7,6 @@ mod style;
 mod summary;
 mod terse;
 
-#[cfg(feature = "json")]
 pub(crate) use json::*;
 #[cfg(not(feature = "color"))]
 pub(crate) use no_style::*;

crates/libtest2-mimic/Cargo.toml

@@ -24,9 +24,8 @@ pre-release-replacements = [
 ]
 
 [features]
-default = ["color", "json", "threads"]
+default = ["color", "threads"]
 color = ["libtest2-harness/color"]
-json = ["libtest2-harness/json"]
 threads = ["libtest2-harness/threads"]
 
 [dependencies]

crates/libtest2-mimic/tests/testsuite/mixed_bag.rs

@@ -698,7 +698,6 @@ test result: FAILED. 1 passed; 1 failed; 0 ignored; 6 filtered out; finished in
 }
 
 #[test]
-#[cfg(feature = "json")]
 fn list_json() {
     check(
         &["-Zunstable-options", "--format=json", "--list", "a"],
@@ -827,7 +826,6 @@ fn list_json() {
 }
 
 #[test]
-#[cfg(feature = "json")]
 fn test_json() {
     check(
         &["-Zunstable-options", "--format=json", "a"],
@@ -1102,7 +1100,6 @@ test result: FAILED. 1 passed; 1 failed; 2 ignored; 0 filtered out; finished in
 }
 
 #[test]
-#[cfg(feature = "json")]
 fn fail_fast_json() {
     check(
         &["-Zunstable-options", "--format=json", "--fail-fast"],

crates/libtest2/Cargo.toml

@@ -24,9 +24,8 @@ pre-release-replacements = [
 ]
 
 [features]
-default = ["color", "json", "threads"]
+default = ["color", "threads"]
 color = ["libtest2-harness/color"]
-json = ["libtest2-harness/json"]
 threads = ["libtest2-harness/threads"]
 
 [dependencies]

crates/libtest2/tests/testsuite/mixed_bag.rs

@@ -705,7 +705,6 @@ test result: FAILED. 1 passed; 1 failed; 0 ignored; 6 filtered out; finished in
 }
 
 #[test]
-#[cfg(feature = "json")]
 fn list_json() {
     check(
         &["-Zunstable-options", "--format=json", "--list", "a"],
@@ -834,7 +833,6 @@ fn list_json() {
 }
 
 #[test]
-#[cfg(feature = "json")]
 fn test_json() {
     check(
         &["-Zunstable-options", "--format=json", "a"],
@@ -1109,7 +1107,6 @@ test result: FAILED. 1 passed; 1 failed; 2 ignored; 0 filtered out; finished in
 }
 
 #[test]
-#[cfg(feature = "json")]
 fn fail_fast_json() {
     check(
         &["-Zunstable-options", "--format=json", "--fail-fast"],