Handle Integer.MIN_VALUE overflow in AbsoluteMin

Author: klerk1t

src/main/java/com/thealgorithms/maths/AbsoluteMin.java

@@ -15,12 +15,13 @@ public static int getMinValue(int... numbers) {
             throw new IllegalArgumentException("Numbers array cannot be empty or null");
         }
 
-        int absMin = numbers[0];
+        long absMin = numbers[0];
         for (int i = 1; i < numbers.length; i++) {
-            if (Math.abs(numbers[i]) < Math.abs(absMin) || (Math.abs(numbers[i]) == Math.abs(absMin) && numbers[i] < absMin)) {
-                absMin = numbers[i];
+            long current = numbers[i];
+            if (Math.abs(current) < Math.abs(absMin) || (Math.abs(current) == Math.abs(absMin) && current < absMin)) {
+                absMin = current;
             }
         }
-        return absMin;
+        return (int) absMin;
     }
 }

src/test/java/com/thealgorithms/maths/AbsoluteMinTest.java

@@ -27,4 +27,13 @@ void testGetMinValueWithSameAbsoluteValues() {
         assertEquals(-5, AbsoluteMin.getMinValue(-5, 5));
         assertEquals(-5, AbsoluteMin.getMinValue(5, -5));
     }
+
+    @Test
+    void testIntegerMinValueOverflow() {
+        assertEquals(1, AbsoluteMin.getMinValue(Integer.MIN_VALUE, 1));
+        assertEquals(-1, AbsoluteMin.getMinValue(Integer.MIN_VALUE, -1));
+        assertEquals(0, AbsoluteMin.getMinValue(Integer.MIN_VALUE, 0));
+        assertEquals(Integer.MIN_VALUE, AbsoluteMin.getMinValue(Integer.MIN_VALUE));
+        assertEquals(Integer.MAX_VALUE, AbsoluteMin.getMinValue(Integer.MIN_VALUE, Integer.MAX_VALUE));
+    }
 }