diff --git a/src/looper.js b/src/looper.js
index 2dfaf9e5..c02e1f36 100644
--- a/src/looper.js
+++ b/src/looper.js
@@ -387,7 +387,7 @@ class Score {
   constructor() {
     // for all of the arguments
     this.parts = [];
-    this.currentPart = new Array(arguments.length);;
+    this.currentPart = new Array(arguments.length);
 
     var thisScore = this;
     for (var i in arguments) {
@@ -396,7 +396,7 @@ class Score {
       this.parts[i].onended = function () {
         thisScore.resetPart(i);
         playNextPart(thisScore);
-      };    
+      };
     }
     this.looping = false;
   }
diff --git a/test/tests/p5.FFT.js b/test/tests/p5.FFT.js
index fd83baaa..578f963c 100644
--- a/test/tests/p5.FFT.js
+++ b/test/tests/p5.FFT.js
@@ -55,4 +55,61 @@ describe('p5.FFT', function () {
     expect(fft.smoothing).to.equal(0.8);
     expect(fft.smooth()).to.equal(0.8);
   });
+
+  let soundFile, oscillator;
+  it('can set Oscillator as input', function (done) {
+    oscillator = new p5.Oscillator();
+    try {
+      fft.setInput(oscillator);
+    } catch (err) {
+      return expect.fail();
+    }
+    oscillator.start();
+
+    setTimeout(() => {
+      let spectrum = fft.analyze();
+      const someFrequencyIsNotZero = spectrum.some(
+        (frequency) => frequency !== 0
+      );
+      expect(someFrequencyIsNotZero).to.equal(true);
+      oscillator.dispose();
+      done();
+    }, 500);
+  });
+  it('can set soundFile  as input', function (done) {
+    soundFile = p5.prototype.loadSound('./testAudio/drum.mp3', () => {
+      soundFile.disconnect();
+      try {
+        fft.setInput(soundFile);
+      } catch (err) {
+        return done(err);
+      }
+      soundFile.play();
+      setTimeout(() => {
+        let spectrum = fft.analyze();
+        const someFrequencyIsNotZero = spectrum.some(
+          (frequency) => frequency !== 0
+        );
+        expect(someFrequencyIsNotZero).to.equal(true);
+        soundFile.dispose();
+        done();
+      }, 500);
+    });
+  });
+  it('can handle any Unknown sources', function (done) {
+    let UnknownSource = { UnknownSource: 'this is a unknown object' };
+    try {
+      fft.setInput(UnknownSource);
+    } catch (err) {
+      return done(err);
+    }
+    setTimeout(() => {
+      let spectrum = fft.analyze();
+      const someFrequencyIsNotZero = spectrum.some(
+        (frequency) => frequency !== 0
+      );
+      expect(someFrequencyIsNotZero).to.equal(false);
+      done();
+    }, 500);
+  });
 });