From 19cb8e1ef012126aa7e019ffadd5391dd9470468 Mon Sep 17 00:00:00 2001
From: Matt McPherrin <git@mcpherrin.ca>
Date: Wed, 15 Jul 2015 21:04:27 -0700
Subject: [PATCH] Finish test so it actually tests something useful.
---
src/lib.rs | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/src/lib.rs b/src/lib.rs
index d21bf6f..c0f28e6 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,6 +1,7 @@
// This (implicitly/naively) uses a rectangular window. Some way to set up a window function
// will be needed probably -- if mutating your samples before calling this isn't sufficient.
use std::f32;
+use std::f32::consts::PI;
/// Set up parameters (and some precomputed values for those).
#[derive(Clone, Copy)]
@@ -75,7 +76,7 @@ fn one_sine() {
let step = 1. / 8000.;
for sample in (0 .. 8000) {
let time = sample as f32 * step;
- buf[sample] = ( time * 1800. * 2. * f32::consts::PI ).sin() as i16
+ buf[sample] = ((time * 1800. * 2. * PI).sin()*std::i16::MAX as f32) as i16;
}
let p = Parameters::new(1800., 8000., 256);
@@ -85,6 +86,9 @@ fn one_sine() {
let p = Parameters::new(freq, 8000., 256);
let mag = p.start().add(&buf[0..256]).finish_mag();
println!("{}: {}", freq, mag);
+ if freq != 1800. {
+ assert!(mag1800 > 10.*mag);
+ }
}
}
--
GitLab