Struct JsTestBeholder 

pub struct JsTestBeholder { /* private fields */ }

Per-run JS test JSON parser shared by vitest, jest, and bun-test.

All three produce a Jest-compatible JSON report on stdout at process exit (via --reporter=json for vitest/bun-test, --json for jest). There is no streaming line-by-line format, so incremental parsing is not possible: the beholder accumulates raw bytes and flushes structured events in on_done.

Events emitted:

• One summary event (Info on success, Error on failure) with pass/fail counts.
• One Error event per failed assertion with the test name and failure message.

Trait Implementations

impl Beholder for JsTestBeholder

fn name(&self) -> &'static str

fn version(&self) -> &'static str

fn mode(&self) -> BeholderMode

fn parse_chunk(&mut self, chunk: &OutputChunk) -> Vec<Event>

Extract structured events from one output chunk.

fn on_done(&mut self, run_id: &TaskRunId, offset_ms: u32) -> Vec<Event>

Called once after the last chunk has been delivered (PTY EOF).

fn unknown_format_reason(&self) -> Option<&str>

Returns a reason string if the beholder detected that the tool’s output format is unrecognized (schema drift). When Some, the driver detaches this beholder and updates beholder_status to unknown_format:name.