Enum TestError 

#[non_exhaustive]
pub enum TestError {
    Connection {
        host: String,
        port: u16,
        reason: String,
    },
    Request(Error),
    Mcp {
        code: i64,
        message: String,
    },
    ToolError(String),
    Assertion(String),
    Timeout(String),
    ElementNotFound(String),
    VisualRegression(String),
    Other(String),
}

Errors that can occur when interacting with the Victauri MCP server from tests.

Each variant includes actionable context to help diagnose and fix the issue.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Connection

Failed to connect to the Victauri MCP server at the expected port.

Fields

host: String

Host that was targeted (typically "127.0.0.1").

port: u16

Port that was targeted.

reason: String

Human-readable explanation of what went wrong.

Request(Error)

An HTTP-level error occurred during an MCP request.

Mcp

The MCP server returned a JSON-RPC error response.

Fields

code: i64

JSON-RPC error code.

message: String

Human-readable error message from the server.

ToolError(String)

A tool call returned isError: true in its result.

Assertion(String)

A test assertion evaluated to false.

Timeout(String)

A wait_for condition did not become true within the allowed time.

ElementNotFound(String)

An element matching the given criteria was not found in the DOM snapshot.

VisualRegression(String)

A visual regression was detected — screenshot differs from baseline.

Other(String)

A catch-all for errors that don’t fit other variants (IO, encoding, etc.).

Trait Implementations

impl Debug for TestError

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

Formats the value using the given formatter.

impl Display for TestError

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

Formats the value using the given formatter.

impl Error for TestError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl From<Error> for TestError

fn from(e: Error) -> Self

Converts to this type from the input type.