init

crates/domain/tests/activity/activity_name_test.rs

@@ -0,0 +1,26 @@
+use domain::activity::ActivityName;
+use domain::errors::DomainError;
+
+#[test]
+fn valid_name_is_created() {
+    let name = ActivityName::new("exercise").unwrap();
+    assert_eq!(name.value(), "exercise");
+}
+
+#[test]
+fn name_trims_whitespace() {
+    let name = ActivityName::new("  friends  ").unwrap();
+    assert_eq!(name.value(), "friends");
+}
+
+#[test]
+fn empty_name_is_rejected() {
+    let result = ActivityName::new("");
+    assert!(matches!(result, Err(DomainError::InvalidInput(_))));
+}
+
+#[test]
+fn whitespace_only_name_is_rejected() {
+    let result = ActivityName::new("   ");
+    assert!(matches!(result, Err(DomainError::InvalidInput(_))));
+}