Struct TestConsole 

pub struct TestConsole { /* private fields */ }

A Console that captures output for testing

This wraps a FastMcpConsole with a buffer writer to capture all output. Use console() to get the inner console for rendering, then use output(), contains(), and assertion methods to verify the output.

Implementations

impl TestConsole

pub fn new() -> Self

Create a new test console that captures output

Note: Internally uses rich mode to ensure output goes through the writer. ANSI codes are stripped when reading via output() and output_string().

pub fn new_rich() -> Self

Create a test console that renders rich output (for visual testing)

pub fn console(&self) -> &FastMcpConsole

Get the underlying console for passing to renderers

pub fn output(&self) -> Vec<String>

Get all captured output (ANSI codes stripped)

pub fn raw_output(&self) -> Vec<String>

Get all captured output (with ANSI codes)

pub fn output_string(&self) -> String

Get output as a single string

pub fn contains(&self, needle: &str) -> bool

Check if output contains a string (case-insensitive)

pub fn contains_all(&self, needles: &[&str]) -> bool

Check if output contains all of the given strings

pub fn matches(&self, pattern: &str) -> bool

Check if output matches a regex pattern

pub fn assert_contains(&self, needle: &str)

Assert that output contains a string

Panics

Panics if the output does not contain the needle string.

pub fn assert_not_contains(&self, needle: &str)

Assert that output does NOT contain a string

Panics

Panics if the output contains the needle string.

pub fn assert_line_count(&self, expected: usize)

Assert output has specific number of lines

Panics

Panics if the line count doesn’t match expected.

pub fn clear(&self)

Clear the buffer

pub fn debug_print(&self)

Print output for debugging (in tests)

pub fn is_rich(&self) -> bool

Check if the console reports as rich mode

Note: The internal console is always in rich mode to capture output, but this returns the mode the TestConsole was created with.

Trait Implementations

impl Clone for TestConsole

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TestConsole

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

Formats the value using the given formatter.

impl Default for TestConsole

fn default() -> Self

Returns the “default value” for a type.