Update EMAFilterTest.java

I hope it is fine now

Author: Shreya123714

src/test/java/com/thealgorithms/audiofilters/EMAFilterTest.java

@@ -10,9 +10,7 @@ public void testApplyBasicSignal() {
         EMAFilter emaFilter = new EMAFilter(0.2);
         double[] audioSignal = {0.1, 0.5, 0.8, 0.6, 0.3, 0.9, 0.4};
         double[] expectedOutput = {0.1, 0.18, 0.304, 0.3632, 0.35056, 0.460448, 0.4483584};
-        
         double[] result = emaFilter.apply(audioSignal);
-
         assertArrayEquals(expectedOutput, result, 1e-5);
     }
 
@@ -21,23 +19,20 @@ public void testApplyEmptySignal() {
         EMAFilter emaFilter = new EMAFilter(0.2);
         double[] audioSignal = {};
         double[] expectedOutput = {};
-
         double[] result = emaFilter.apply(audioSignal);
-
         assertArrayEquals(expectedOutput, result);
     }
 
     @Test
     public void testAlphaBounds() {
         EMAFilter emaFilterMin = new EMAFilter(0.01);
         EMAFilter emaFilterMax = new EMAFilter(1.0);
+        double[] audioSignal = {1.0, 1.0, 1.0, 1.0};
 
-        double[] audioSignal =  {1.0, 1.0, 1.0, 1.0};
-        
         // Minimal smoothing (alpha close to 0)
         double[] resultMin = emaFilterMin.apply(audioSignal);
         assertArrayEquals(audioSignal, resultMin, 1e-5);
-        
+
         // Maximum smoothing (alpha = 1, output should match input)
         double[] resultMax = emaFilterMax.apply(audioSignal);
         assertArrayEquals(audioSignal, resultMax, 1e-5);