docs/scalus/scalus.testing/ImmutableEmulator

ImmutableEmulator

scalus.testing.ImmutableEmulator

See theImmutableEmulator companion object

case class ImmutableEmulator(state: State, env: UtxoEnv, slotConfig: SlotConfig = ..., evaluatorMode: EvaluatorMode = ..., validators: Iterable[Validator] = ..., mutators: Iterable[Mutator] = ...)

An immutable emulator for Cardano transactions.

Unlike scalus.cardano.node.Emulator, this emulator is fully immutable: every state-changing operation (submit, advanceSlot) returns a new ImmutableEmulator instance, leaving the original unchanged.

This makes it suitable for use in functional state-threading patterns such as the Scenario monad, where branching and backtracking require independent state copies.

Attributes

Companion: object
Graph
Supertypes: trait Serializable

trait Product

trait Equals

class Object

trait Matchable

class Any
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Members list

Value members

Concrete methods

Advance the slot by the given number of slots.

Attributes

Create a read-only scalus.cardano.node.BlockchainReader snapshot.

This provides read-only access to the emulator's state without submit capability. Uses ExecutionContext.global to avoid deadlocks when callers use Await.result on the returned futures.

Attributes

Current CardanoInfo snapshot.

Attributes

Current slot number.

Attributes

Find UTxOs matching the given query.

Attributes

Current protocol parameters.

Attributes

Set the slot to a specific value.

Attributes

Submit a transaction, returning the transaction hash and a new emulator with updated state.

The original emulator is not modified.

Attributes

Convert to a mutable scalus.cardano.node.Emulator.

Attributes

Current UTxO set.

Attributes

Inherited methods

Attributes

Inherited from:: Product

Attributes

Inherited from:: Product

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