Enum TestStep 

pub enum TestStep {
    Navigate {
        url: String,
        wait_after_ms: Option<u64>,
    },
    Login {
        url: String,
        email: String,
        password: String,
        wait_after_ms: Option<u64>,
    },
    Click {
        target: String,
        selector: Option<String>,
        wait_after_ms: Option<u64>,
        endpoint: Option<String>,
    },
    Type {
        target: String,
        text: String,
        selector: Option<String>,
        wait_after_ms: Option<u64>,
        endpoint: Option<String>,
    },
    Wait {
        target: String,
        selector: Option<String>,
        text: Option<String>,
        timeout_ms: Option<u64>,
        endpoint: Option<String>,
    },
    Assert {
        definition: Option<String>,
        preset: Option<String>,
        prompt: Option<String>,
        assert_text: Option<String>,
        endpoint: Option<String>,
        screenshot: bool,
    },
    Screenshot {
        path: Option<String>,
    },
    Agent {
        agent: String,
        task: String,
        definition: Option<String>,
    },
    Mcp {
        server: String,
        tool: String,
        args: Option<Value>,
    },
}

A single step in a test. The kind field determines which variant is deserialized and which field constraints apply.

Variants

Navigate

Navigate the browser to a URL.

Fields

url: String

URL to navigate to (absolute, or relative to the test’s base URL).

wait_after_ms: Option<u64>

Milliseconds to wait after navigation completes.

Login

Idempotent login: navigate to the login URL; if the app is already authenticated (no login form rendered), pass silently. Otherwise fill the form, wait for the bot-protection token, submit, and wait for the authenticated shell. Built for scenarios that repeat login steps across viewport-matrix variants in one browser session.

Fields

url: String

Login page URL (relative to the base URL).

email: String

Email / username to enter.

password: String

Password to enter.

wait_after_ms: Option<u64>

Milliseconds to wait after the authenticated shell appears.

Click

Click an element described in natural language.

Fields

target: String

Natural language description of the element. The LLM resolves this to a CSS selector at runtime.

selector: Option<String>

Explicit CSS selector override (bypasses LLM resolution).

wait_after_ms: Option<u64>

Milliseconds to wait after the click.

endpoint: Option<String>

Endpoint to use for LLM element targeting.

Type

Type text into an input element.

Fields

target: String

Natural language description of the target input element.

text: String

Text to type into the element.

selector: Option<String>

Explicit CSS selector override (bypasses LLM resolution).

wait_after_ms: Option<u64>

Milliseconds to wait after typing.

endpoint: Option<String>

Endpoint to use for LLM element targeting.

Wait

Wait for an element to appear on the page.

Fields

target: String

Natural language description of the element to wait for.

selector: Option<String>

Explicit CSS selector override (bypasses LLM resolution).

text: Option<String>

Wait until the page’s visible text contains this substring (alternative to selector; either or both may be set — both are required to hold when both are set).

timeout_ms: Option<u64>

Maximum milliseconds to wait (default: 10000).

endpoint: Option<String>

Endpoint to use for LLM element targeting.

Assert

Evaluate an assertion against the current page content.

Fields

definition: Option<String>

Reference to a named [[definitions]] entry.

preset: Option<String>

Inline predefined assertion preset (e.g. no_error_on_page).

prompt: Option<String>

Inline custom LLM prompt for assertion evaluation.

assert_text: Option<String>

Text that the text_visible preset checks for.

endpoint: Option<String>

Endpoint to use for this assertion’s LLM call.

screenshot: bool

Attach a screenshot of the current viewport to the assertion so the LLM can evaluate visuals (overlaps, clipping, layout). Requires the resolved endpoint to declare vision = true.

Screenshot

Take a screenshot of the current page.

Fields

path: Option<String>

File path to save the screenshot (default: screenshot.png).

Agent

Call an A2A agent with a task.

Fields

agent: String

Name of the agent endpoint to call.

task: String

Task description / prompt for the agent.

definition: Option<String>

Optional definition name with a task template.

Mcp

Call an MCP server tool.

Fields

server: String

Name of the MCP server endpoint.

tool: String

Tool name to invoke on the server.

args: Option<Value>

Tool arguments as JSON.

Trait Implementations

impl Clone for TestStep

fn clone(&self) -> TestStep

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TestStep

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for TestStep

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.