diff --git a/test/test-fft.js b/test/test-fft.js
new file mode 100644
index 0000000..bc42bca
--- /dev/null
+++ b/test/test-fft.js
@@ -0,0 +1,15 @@
+var FFT = numerics.fft;
+
+var signal = [1,0,1,0];
+var phasors = FFT.fft(signal);
+
+log(phasors);
+
+var frequencies = FFT.fftFreq(phasors, 8000), // Sample rate and coef is just used for length, and frequency step
+     magnitudes = FFT.fftMag(phasors); 
+var both = frequencies.map(function (f, ix) {
+        return {frequency: f, magnitude: magnitudes[ix]};
+    });
+
+log(inspect(both));
+