Struct GraphAssertions 

pub struct GraphAssertions<'a, State> { /* private fields */ }

A fluent, panic-on-failure assertion builder over a GraphRun.

Returned by assert_graph. Every method asserts and returns &Self so checks chain:

assert_graph(&run)
    .visited(["agent", "tools", "agent"])
    .routed("agent", "tools")
    .checkpoint_count(3)
    .completed();

Implementations

impl<State> GraphAssertions<'_, State>

pub fn visited<I, N>(&self, expected: I) -> &Self

where I: IntoIterator<Item = N>, N: Into<NodeId>,

Asserts the run visited exactly expected, in order (repeats included).

pub fn routed(&self, from: impl Into<NodeId>, to: impl Into<NodeId>) -> &Self

Asserts the executor selected a route from from to to.

Reads the recorded RouteSelected events when present; when no events were recorded it falls back to adjacency in the visited sequence (to immediately follows from).

pub fn checkpoint_count(&self, n: usize) -> &Self

Asserts the run persisted exactly n checkpoints.

Counts the recorded CheckpointSaved events when present, else falls back to the collected checkpoint-history length.

pub fn state_history(&self, f: impl FnOnce(&[StateSnapshot<State>])) -> &Self

Asserts against the thread’s checkpoint history (newest-first) via a caller-supplied predicate closure.

pub fn checkpoint(&self, f: impl FnOnce(&StateSnapshot<State>)) -> &Self

Asserts against the latest checkpoint snapshot via a caller-supplied closure. Panics when the run has no checkpoint history.

pub fn completed(&self) -> &Self

Asserts the run completed (no pending interrupts and a Completed status).

pub fn interrupted(&self) -> &Self

Asserts the run paused on an interrupt rather than completing.