Module testing 

Test helpers shared by every crate: synthetic signals generated by code (never binary fixtures in git), a ready-made context, and comparison metrics.

Structs

TempDir

A temp directory unique to the test, removed on drop.

Statics

NO_PROGRESS

SIMPLE_IO

Functions

add

Sum two buffers (shorter one zero-padded).

args

Build args for spec from key=value pairs (defaults applied).

chirp

Linear chirp from f0 to f1.

clicks

Click train: single-sample impulses every period seconds.

ctx

A context with no inputs, SimpleIo, and no progress output.

ctx_with

A context with a registry attached (for composite ops).

leak_registry

Leak a registry for tests that need 'static.

noise

Deterministic white noise in [-amp, amp].

read_wav

rms_db

RMS of a slice in dBFS.

rms_diff

RMS of the difference (over the common length).

run

Run a transform spec directly.

run_ctx

Run a transform spec and also return the context (to assert on metrics, notes, warnings).

si_sdr

Scale-invariant SDR of estimate against reference, in dB.

sine

stereo

tone_level

Magnitude (linear) of frequency f in x using a Goertzel filter, normalized so a full-scale sine reads 1.0.

write_wav

Write a float WAV for tests.