test(harness): close hemx-test mutation gate

Prove canonical wire inspection diagnostics and selector failures, classify only OS-process and invariant-only mutation seams, and make the package-native mutation command pass for the complete hemx-test crate. req: test/001 req: test/019 req: test/020 req: test/021 req: test/022 req: wire/009
2026-07-16 23:10:12 +02:00
parent 612a66725f
commit 2705099aed
4 changed files with 101 additions and 19 deletions
@@ -1,8 +1,22 @@
 use hemx_core::{
-    Atom, Effect, Form, GeneratedTarget, KeyedSlot, NavigateMode, Payload, ResourceId,
-    ResourceKind, ResourceRef, ScopeKey, Slot,
+    Atom, BuildFingerprint, Effect, EffectBatch, Form, GeneratedTarget, KeyedSlot, NavigateMode,
+    Payload, ResourceId, ResourceKind, ResourceRef, ScopeKey, Slot,
 };

+fn panic_text<T>(result: std::thread::Result<T>) -> String {
+    let panic = match result {
+        Ok(_) => panic!("operation must panic"),
+        Err(panic) => panic,
+    };
+    if let Some(message) = panic.downcast_ref::<String>() {
+        message.clone()
+    } else if let Some(message) = panic.downcast_ref::<&str>() {
+        (*message).to_owned()
+    } else {
+        panic!("panic payload was not text")
+    }
+}
+
 #[test]
 fn inspects_tuple_effects() {
    let count = Slot::<u32>::new(1);
@@ -265,21 +279,62 @@ fn selector_helpers_validate_parts_and_cover_unscoped_variants() {
    .is_err());

    for invalid in ["", "two parts", ".class", "#id", "a>b", "a[b]"] {
-        assert!(std::panic::catch_unwind(|| hemx_test::class_selector(invalid)).is_err());
+        assert!(panic_text(std::panic::catch_unwind(|| {
+            hemx_test::class_selector(invalid)
+        }))
+        .contains("class selector part"));
    }
-    for call in [
-        std::panic::catch_unwind(|| hemx_test::element_class_selector("bad tag", "ok")),
-        std::panic::catch_unwind(|| hemx_test::element_class_selector("span", "bad class")),
-        std::panic::catch_unwind(|| hemx_test::class_child_selector("bad parent", "li", "row")),
-        std::panic::catch_unwind(|| hemx_test::class_child_selector("list", "bad tag", "row")),
-        std::panic::catch_unwind(|| hemx_test::class_child_selector("list", "li", "bad class")),
-        std::panic::catch_unwind(|| hemx_test::class_descendant_selector("bad parent", "i")),
-        std::panic::catch_unwind(|| hemx_test::class_descendant_selector("note", "bad tag")),
+    for (call, label) in [
+        (
+            std::panic::catch_unwind(|| hemx_test::element_class_selector("bad tag", "ok")),
+            "element selector part",
+        ),
+        (
+            std::panic::catch_unwind(|| hemx_test::element_class_selector("span", "bad class")),
+            "class selector part",
+        ),
+        (
+            std::panic::catch_unwind(|| hemx_test::class_child_selector("bad parent", "li", "row")),
+            "parent class selector part",
+        ),
+        (
+            std::panic::catch_unwind(|| hemx_test::class_child_selector("list", "bad tag", "row")),
+            "element selector part",
+        ),
+        (
+            std::panic::catch_unwind(|| hemx_test::class_child_selector("list", "li", "bad class")),
+            "class selector part",
+        ),
+        (
+            std::panic::catch_unwind(|| hemx_test::class_descendant_selector("bad parent", "i")),
+            "parent class selector part",
+        ),
+        (
+            std::panic::catch_unwind(|| hemx_test::class_descendant_selector("note", "bad tag")),
+            "element selector part",
+        ),
    ] {
-        assert!(call.is_err());
+        assert!(panic_text(call).contains(label));
    }
 }

+#[test]
+fn inspect_wire_reports_the_decode_failure_and_accepts_canonical_batches() {
+    let batch = EffectBatch {
+        abi_version: hemx_core::EFFECT_BATCH_ABI_VERSION,
+        fingerprint: BuildFingerprint(9),
+        ops: vec![Effect::Emit {
+            name: "saved".into(),
+            payload: "ok".into(),
+        }],
+    };
+    assert!(hemx_test::inspect_wire(&batch.to_wire()).emits("saved", "ok"));
+
+    let message = panic_text(std::panic::catch_unwind(|| hemx_test::inspect_wire(b"bad")));
+    assert!(message.contains("invalid hemx effect wire response: Truncated"));
+    // req: test/001 test req: wire/009 test
+}
+
 #[test]
 fn builds_generated_handle_form_bodies() {
    let handle = hemx_core::Handle::<()>::new(7);