chore(checkpoint): save current v0 build state

slhx-core/tests/effect_batch.rs

@@ -0,0 +1,130 @@
+use slhx_core::{event, navigate, redirect, replace, Atom, AtomSnapshot, AtomState, BuildFingerprint, Effect, EffectBatch, Form, IntoEffect, KeyedSlot, NavigateMode, Payload, ResourceKind, SafeHtml, ScopeKey, Slot};
+
+#[test]
+fn effect_batch_wire_round_trips() {
+    let count = Slot::<u32>::new(1);
+    let todos = KeyedSlot::<u64, String>::new(2);
+    let user = Atom::<String>::new(3);
+
+    let batch = (
+        count.text(2),
+        todos.append(7, "Buy milk"),
+        todos.replace(7, "Buy oat milk"),
+        user.set("Ada"),
+        navigate("/todos"),
+        event("toast", "Saved"),
+    )
+        .into_batch(BuildFingerprint(42));
+
+    let bytes = batch.to_wire();
+    assert_eq!(&bytes[..4], b"SLHX");
+    let decoded = EffectBatch::from_wire(&bytes).unwrap();
+
+    assert_eq!(decoded, batch);
+    assert!(decoded.is_compatible());
+}
+
+#[test]
+fn keyed_slot_replace_uses_scoped_resource_ref() {
+    let todos = KeyedSlot::<u64, String>::new(9);
+    let effect = todos.replace(12, "done");
+
+    let Effect::Put { target, payload } = effect else {
+        panic!("expected Put");
+    };
+
+    assert_eq!(target.resource.kind, ResourceKind::Slot);
+    assert_eq!(target.resource.id, 9);
+    assert_eq!(target.scope, Some(ScopeKey::KeyValue(String::from("12"))));
+    assert_eq!(payload, Payload::Text(String::from("done")));
+}
+
+#[test]
+fn tuple_composition_supports_arity_twelve() {
+    let slot = Slot::<u8>::new(1);
+    let batch = (
+        slot.text(1),
+        slot.text(2),
+        slot.text(3),
+        slot.text(4),
+        slot.text(5),
+        slot.text(6),
+        slot.text(7),
+        slot.text(8),
+        slot.text(9),
+        slot.text(10),
+        slot.text(11),
+        slot.text(12),
+    )
+        .into_batch(BuildFingerprint(1));
+
+    assert_eq!(batch.ops.len(), 12);
+}
+
+#[test]
+fn generated_form_helpers_target_form_fields() {
+    let signup = Form::<()>::new(4);
+
+    let Effect::Emit { name, payload } = signup.error("email", "Use your work email") else {
+        panic!("expected Emit");
+    };
+
+    assert_eq!(name, "slhx:form-error");
+    assert_eq!(payload, "4\u{1f}email\u{1f}Use your work email");
+
+    let Effect::Focus { target } = signup.focus("email") else {
+        panic!("expected Focus");
+    };
+    assert_eq!(target.scope, Some(ScopeKey::Field(String::from("email"))));
+}
+
+#[test]
+fn slot_html_requires_explicit_safe_html() {
+    let content = Slot::<String>::new(10);
+    let Effect::Put { payload, .. } = content.html(SafeHtml::trusted("<strong>ok</strong>")) else {
+        panic!("expected Put");
+    };
+
+    assert_eq!(payload, Payload::Html(String::from("<strong>ok</strong>")));
+}
+
+#[test]
+fn atom_state_bootstrap_is_postcard_round_trippable() {
+    let state = AtomState {
+        atoms: vec![AtomSnapshot {
+            id: 7,
+            bytes: vec![1, 2, 3],
+        }],
+    };
+
+    let bytes = state.to_postcard().unwrap();
+    assert_eq!(AtomState::from_postcard(&bytes).unwrap(), state);
+}
+
+#[test]
+fn navigation_helpers_choose_explicit_modes() {
+    let Effect::Navigate { mode, .. } = navigate("/docs") else {
+        panic!("expected Navigate");
+    };
+    assert_eq!(mode, NavigateMode::Push);
+
+    let Effect::Navigate { mode, .. } = replace("/docs") else {
+        panic!("expected Navigate");
+    };
+    assert_eq!(mode, NavigateMode::Replace);
+
+    let Effect::Navigate { mode, .. } = redirect("/login") else {
+        panic!("expected Navigate");
+    };
+    assert_eq!(mode, NavigateMode::Redirect);
+}
+
+#[test]
+fn build_fingerprint_is_deterministic_from_abi_parts() {
+    let a = BuildFingerprint::from_parts(&[1, 2, 3, 4]);
+    let b = BuildFingerprint::from_parts(&[1, 2, 3, 4]);
+    let c = BuildFingerprint::from_parts(&[1, 2, 3, 5]);
+
+    assert_eq!(a, b);
+    assert_ne!(a, c);
+}