Struct Scenario 

pub struct Scenario {
    pub name: String,
    pub steps: Vec<SimStep>,
}

A serializable simulation script — a deterministic, model-free test case that can be authored in code or loaded from YAML/JSON.

Fields

name: String

Scenario name (for diagnostics).

steps: Vec<SimStep>

The steps to execute, in order.

Implementations

impl Scenario

pub fn from_journal(name: impl Into<String>, journal: &[StateMutation]) -> Self

Turn a recorded session into a regression scenario: the incident becomes a test.

journal is the session’s mutation journal (see FileJournalSink and read_journal), which a governed session writes as one ordered timeline. The scenario replays what the application and user contributed and checks what governance decided:

• a slot or flag write becomes Set;
• a tool the flow admitted becomes ExpectAllowed, one it refused ExpectDenied, and its outcome ToolResult;
• every turn boundary where the flow was evaluated (a flow:active write) becomes a Turn followed by ExpectActive with the steps the session had then.

Keys the runtime owns (session:, flow:, derived:, repair and correction signals, …) are not replayed: the simulator must reach them itself.

Run the result against the conversation spec in CI. If a change to the spec alters what that session would have done, the scenario fails at the step where the two diverge.

pub async fn run( &self, convo: &CompiledConversation, mode: Enforcement, ) -> Result<(), String>

Run the scenario against convo. Returns Ok(()) if every Expect* step holds, else Err with the failing step index and a diagnostic.

pub async fn run_in(&self, sim: Sim) -> Result<(), String>

Run the steps in a prepared simulator (for example one with Sim::with_decisions).

Trait Implementations

impl Clone for Scenario

fn clone(&self) -> Scenario

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Scenario

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Scenario

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl JsonSchema for Scenario

fn schema_name() -> String

The name of the generated JSON Schema.

fn schema_id() -> Cow<'static, str>

Returns a string that uniquely identifies the schema produced by this type.

fn json_schema(generator: &mut SchemaGenerator) -> Schema

Generates a JSON Schema for this type.

fn is_referenceable() -> bool

Whether JSON Schemas generated for this type should be re-used where possible using the $ref keyword.

impl Serialize for Scenario

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.