* test(vertical_horizontal_filter): cover period accessor + name metadata
Codecov flagged 6 lines (file at 94.44%): period (61-63) + name (119-121).
* test(z_score): cover period accessor + name metadata
Codecov flagged 6 lines (file at 93.75%): period (59-61) + name (106-108).
* test(vpt): cover value() Some branch, name, zero-prev fallback
Codecov flagged 5 lines (file at 94.38%): value() Some branch (57),
prev==0.0 ROC fallback (77), and Indicator-impl name (100-102).
Add accessors_and_metadata covering value()/name and zero_previous_
close_contributes_zero — feeding a 0.0 baseline + non-zero candle
proves the divide-by-zero guard yields a 0 contribution rather than NaN.
* test(csv): cover from_csv_reader + kill rejects_header dead panic arm
Codecov flagged 5 lines in csv.rs (file at 96.98%): from_csv_reader
(201-204) — never called by existing tests which use from_reader /
open — and the cold arm in
rejects_header_missing_a_column (279). Add from_csv_reader_accepts_a_
prebuilt_reader (demonstrates the API by building a custom-delimited
csv::Reader and passing it in), and refactor the header-missing test
to use a single matches!() assertion so the panic arm is gone.
* test(adl): cover name metadata
Codecov flagged 3 lines (file at 96.84%): Indicator-impl name body (94-96).
kingchenc
d55d3db3d1