feature - add error modal support and retry

socktop/tests/modal_tests.rs

@@ -0,0 +1,46 @@
+//! Tests for modal formatting and duration helper.
+use std::time::Duration;
+
+// Bring the format_duration function into scope by duplicating logic (private in module). If desired,
+// this could be moved to a shared util module; for now we re-assert expected behavior.
+fn format_duration_ref(duration: Duration) -> String {
+    let total_secs = duration.as_secs();
+    let hours = total_secs / 3600;
+    let minutes = (total_secs % 3600) / 60;
+    let seconds = total_secs % 60;
+    if hours > 0 {
+        format!("{hours}h {minutes}m {seconds}s")
+    } else if minutes > 0 {
+        format!("{minutes}m {seconds}s")
+    } else {
+        format!("{seconds}s")
+    }
+}
+
+#[test]
+fn test_format_duration_boundaries() {
+    assert_eq!(format_duration_ref(Duration::from_secs(0)), "0s");
+    assert_eq!(format_duration_ref(Duration::from_secs(59)), "59s");
+    assert_eq!(format_duration_ref(Duration::from_secs(60)), "1m 0s");
+    assert_eq!(format_duration_ref(Duration::from_secs(61)), "1m 1s");
+    assert_eq!(format_duration_ref(Duration::from_secs(3600)), "1h 0m 0s");
+    assert_eq!(format_duration_ref(Duration::from_secs(3661)), "1h 1m 1s");
+}
+
+// Basic test to ensure auto-retry countdown semantics are consistent for initial state.
+#[test]
+fn test_auto_retry_initial_none() {
+    // We can't construct App directly without pulling in whole UI; just assert logic mimic.
+    // For a more thorough test, refactor countdown logic into a pure function.
+    // This placeholder asserts desired initial semantics: when no disconnect/original time, countdown should be None.
+    // (When integrated, consider exposing a pure helper returning Option<u64>.)
+    let modal_active = false; // requirement: must be active for countdown
+    let disconnected_state = true; // assume disconnected state
+    let countdown = if disconnected_state && modal_active {
+        // would compute target
+        Some(0)
+    } else {
+        None
+    };
+    assert!(countdown.is_none());
+}