Enum MockStreamEvent 

pub enum MockStreamEvent {
    Text(String),
    TextStart {
        additional_params: Option<Value>,
    },
    TextAdditionalParams(Value),
    ToolCall {
        id: String,
        name: String,
        arguments: Value,
        call_id: Option<String>,
    },
    ToolCallDelta {
        id: String,
        internal_call_id: String,
        content: ToolCallDeltaContent,
    },
    Reasoning {
        id: Option<String>,
        content: ReasoningContent,
    },
    ReasoningDelta {
        id: Option<String>,
        reasoning: String,
    },
    MessageId(String),
    FinalResponse(MockResponse),
    Error(MockError),
}

Available on crate feature test-utils only.

Scripted streaming event yielded by MockCompletionModel.

Variants

Text(String)

Text chunk.

TextStart

Start a new text content block with optional provider metadata.

Fields

additional_params: Option<Value>

TextAdditionalParams(Value)

Provider-specific metadata for the current text content block.

ToolCall

Complete tool call event.

Fields

id: String

name: String

arguments: Value

call_id: Option<String>

ToolCallDelta

Tool call delta event.

Fields

id: String

internal_call_id: String

content: ToolCallDeltaContent

Reasoning

Complete reasoning event.

Fields

id: Option<String>

content: ReasoningContent

ReasoningDelta

Reasoning delta event.

Fields

id: Option<String>

reasoning: String

MessageId(String)

Provider-assigned message ID.

FinalResponse(MockResponse)

Final raw response carrying optional usage.

Error(MockError)

Stream error.

Implementations

impl MockStreamEvent

pub fn text(text: impl Into<String>) -> Self

Create a text chunk.

pub fn text_start(additional_params: Option<Value>) -> Self

Start a new text content block.

pub fn text_additional_params(additional_params: Value) -> Self

Add provider-specific metadata to the current text content block.

pub fn tool_call( id: impl Into<String>, name: impl Into<String>, arguments: Value, ) -> Self

Create a complete tool call event.

pub fn with_call_id(self, call_id: impl Into<String>) -> Self

Attach a provider-specific call ID to a complete tool call event.

pub fn tool_call_name_delta( id: impl Into<String>, internal_call_id: impl Into<String>, name: impl Into<String>, ) -> Self

Create a tool call name delta.

pub fn tool_call_arguments_delta( id: impl Into<String>, internal_call_id: impl Into<String>, arguments: impl Into<String>, ) -> Self

Create a tool call arguments delta.

pub fn reasoning(reasoning: impl Into<String>) -> Self

Create a complete reasoning event.

pub fn with_reasoning_id(self, reasoning_id: impl Into<String>) -> Self

Attach a provider-specific reasoning ID to a complete reasoning event.

pub fn reasoning_delta( id: Option<impl Into<String>>, reasoning: impl Into<String>, ) -> Self

Create a reasoning delta event.

pub fn message_id(id: impl Into<String>) -> Self

Create a provider-assigned message ID event.

pub fn final_response(usage: Usage) -> Self

Create a final response event with usage.

pub fn final_response_with_default_usage() -> Self

Create a final response event with default zero usage.

pub fn final_response_with_total_tokens(total_tokens: u64) -> Self

Create a final response event whose usage has only total_tokens set.

pub fn error(message: impl Into<String>) -> Self

Create a stream error event.

Trait Implementations

impl Clone for MockStreamEvent

fn clone(&self) -> MockStreamEvent

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MockStreamEvent

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

Formats the value using the given formatter.