init

crates/domain/tests/user/timezone_test.rs

@@ -0,0 +1,32 @@
+use domain::errors::DomainError;
+use domain::user::Timezone;
+
+#[test]
+fn valid_timezone_is_created() {
+    let tz = Timezone::new("Europe/Warsaw").unwrap();
+    assert_eq!(tz.value(), "Europe/Warsaw");
+}
+
+#[test]
+fn timezone_trims_whitespace() {
+    let tz = Timezone::new("  America/New_York  ").unwrap();
+    assert_eq!(tz.value(), "America/New_York");
+}
+
+#[test]
+fn empty_timezone_is_rejected() {
+    let result = Timezone::new("");
+    assert!(matches!(result, Err(DomainError::InvalidInput(_))));
+}
+
+#[test]
+fn timezone_without_slash_is_rejected() {
+    let result = Timezone::new("UTC");
+    assert!(matches!(result, Err(DomainError::InvalidInput(_))));
+}
+
+#[test]
+fn from_persistence_bypasses_validation() {
+    let tz = Timezone::from_persistence("UTC".into());
+    assert_eq!(tz.value(), "UTC");
+}