Update NevilleTest.java

Keykyrios · web-flow · commit 32dde851aa35 · 2025-10-20T15:16:56.000+05:30
diff --git a/src/test/java/com/thealgorithms/maths/NevilleTest.java b/src/test/java/com/thealgorithms/maths/NevilleTest.java
@@ -58,4 +58,12 @@ public void testEmptyArrays() {
         double target = 1;
         assertThrows(IllegalArgumentException.class, () -> Neville.interpolate(x, y, target));
     }
+    
+    @Test
+    public void testDuplicateXCoordinatesThrowsException() {
+        double[] x = {1, 2, 1};
+        double[] y = {5, 8, 3};
+        double target = 1.5;
+        assertThrows(IllegalArgumentException.class, () -> Neville.interpolate(x, y, target));
+    }
 }

Original file line number	Diff line number	Diff line change
`@@ -58,4 +58,12 @@ public void testEmptyArrays() {`
`58`	`58`	`double target = 1;`
`59`	`59`	`assertThrows(IllegalArgumentException.class, () -> Neville.interpolate(x, y, target));`
`60`	`60`	`}`
	`61`	`+`
	`62`	`+ @Test`
	`63`	`+ public void testDuplicateXCoordinatesThrowsException() {`
	`64`	`+ double[] x = {1, 2, 1};`
	`65`	`+ double[] y = {5, 8, 3};`
	`66`	`+ double target = 1.5;`
	`67`	`+ assertThrows(IllegalArgumentException.class, () -> Neville.interpolate(x, y, target));`
	`68`	`+ }`
`61`	`69`	`}`