From 30dcc4c9de6c83b37ea3578267ee78027fea9f69 Mon Sep 17 00:00:00 2001
From: Saniya2701 <185913688+Saniya2701@users.noreply.github.com>
Date: Wed, 17 Dec 2025 22:36:24 +0530
Subject: [PATCH 1/3] Add additional edge cases to GCD unit tests

---
 .../java/com/thealgorithms/maths/GCDTest.java | 24 +++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/src/test/java/com/thealgorithms/maths/GCDTest.java b/src/test/java/com/thealgorithms/maths/GCDTest.java
index bac3f8f7596c..a0d48e3a95e7 100644
--- a/src/test/java/com/thealgorithms/maths/GCDTest.java
+++ b/src/test/java/com/thealgorithms/maths/GCDTest.java
@@ -59,4 +59,28 @@ void testArrayGcd2() {
     void testArrayGcdForEmptyInput() {
         Assertions.assertEquals(GCD.gcd(new int[] {}), 0);
     }
+
+  
+
+
+@Test
+void testSameNumbers() {
+    Assertions.assertEquals(GCD.gcd(7, 7), 7);
+}
+
+@Test
+void testPrimeNumbers() {
+    Assertions.assertEquals(GCD.gcd(13, 17), 1);
+}
+
+@Test
+void testSingleElementArray() {
+    Assertions.assertEquals(GCD.gcd(new int[] {42}), 42);
+}
+
+@Test
+void testLargeNumbers() {
+    Assertions.assertEquals(GCD.gcd(123456, 789012), 12);
+}
+
 }

From 742bcc71642071df8f704f556e2cac55da617773 Mon Sep 17 00:00:00 2001
From: Saniya2701 <185913688+Saniya2701@users.noreply.github.com>
Date: Thu, 18 Dec 2025 12:47:00 +0530
Subject: [PATCH 2/3] Rename GCD test methods and add descriptive names

---
 .../java/com/thealgorithms/maths/GCDTest.java | 82 ++++++++++---------
 1 file changed, 43 insertions(+), 39 deletions(-)

diff --git a/src/test/java/com/thealgorithms/maths/GCDTest.java b/src/test/java/com/thealgorithms/maths/GCDTest.java
index a0d48e3a95e7..d608dba91bc9 100644
--- a/src/test/java/com/thealgorithms/maths/GCDTest.java
+++ b/src/test/java/com/thealgorithms/maths/GCDTest.java
@@ -6,81 +6,85 @@
 public class GCDTest {
 
     @Test
-    void test1() {
+    void testNegativeAndZeroThrowsException() {
         Assertions.assertThrows(ArithmeticException.class, () -> GCD.gcd(-1, 0));
     }
 
     @Test
-    void test2() {
+    void testPositiveAndNegativeThrowsException() {
         Assertions.assertThrows(ArithmeticException.class, () -> GCD.gcd(10, -2));
     }
 
     @Test
-    void test3() {
+    void testBothNegativeThrowsException() {
         Assertions.assertThrows(ArithmeticException.class, () -> GCD.gcd(-5, -3));
     }
 
     @Test
-    void test4() {
-        Assertions.assertEquals(GCD.gcd(0, 2), 2);
+    void testZeroAndPositiveReturnsPositive() {
+        Assertions.assertEquals(2, GCD.gcd(0, 2));
     }
 
     @Test
-    void test5() {
-        Assertions.assertEquals(GCD.gcd(10, 0), 10);
+    void testPositiveAndZeroReturnsPositive() {
+        Assertions.assertEquals(10, GCD.gcd(10, 0));
     }
 
     @Test
-    void test6() {
-        Assertions.assertEquals(GCD.gcd(1, 0), 1);
+    void testOneAndZeroReturnsOne() {
+        Assertions.assertEquals(1, GCD.gcd(1, 0));
     }
 
     @Test
-    void test7() {
-        Assertions.assertEquals(GCD.gcd(9, 6), 3);
+    void testTwoPositiveNumbers() {
+        Assertions.assertEquals(3, GCD.gcd(9, 6));
     }
 
     @Test
-    void test8() {
-        Assertions.assertEquals(GCD.gcd(48, 18, 30, 12), 6);
+    void testMultipleArgumentsGcd() {
+        Assertions.assertEquals(6, GCD.gcd(48, 18, 30, 12));
     }
 
     @Test
-    void testArrayGcd1() {
-        Assertions.assertEquals(GCD.gcd(new int[] {9, 6}), 3);
+    void testArrayInputGcd() {
+        Assertions.assertEquals(3, GCD.gcd(new int[] {9, 6}));
     }
 
     @Test
-    void testArrayGcd2() {
-        Assertions.assertEquals(GCD.gcd(new int[] {2 * 3 * 5 * 7, 2 * 5 * 5 * 5, 2 * 5 * 11, 5 * 5 * 5 * 13}), 5);
+    void testArrayWithCommonFactor() {
+        Assertions.assertEquals(
+            5,
+            GCD.gcd(new int[] {
+                2 * 3 * 5 * 7,
+                2 * 5 * 5 * 5,
+                2 * 5 * 11,
+                5 * 5 * 5 * 13
+            })
+        );
     }
 
     @Test
-    void testArrayGcdForEmptyInput() {
-        Assertions.assertEquals(GCD.gcd(new int[] {}), 0);
+    void testEmptyArrayReturnsZero() {
+        Assertions.assertEquals(0, GCD.gcd(new int[] {}));
     }
 
-  
-
-
-@Test
-void testSameNumbers() {
-    Assertions.assertEquals(GCD.gcd(7, 7), 7);
-}
-
-@Test
-void testPrimeNumbers() {
-    Assertions.assertEquals(GCD.gcd(13, 17), 1);
-}
+    @Test
+    void testSameNumbers() {
+        Assertions.assertEquals(7, GCD.gcd(7, 7));
+    }
 
-@Test
-void testSingleElementArray() {
-    Assertions.assertEquals(GCD.gcd(new int[] {42}), 42);
-}
+    @Test
+    void testPrimeNumbersHaveGcdOne() {
+        Assertions.assertEquals(1, GCD.gcd(13, 17));
+    }
 
-@Test
-void testLargeNumbers() {
-    Assertions.assertEquals(GCD.gcd(123456, 789012), 12);
-}
+    @Test
+    void testSingleElementArrayReturnsElement() {
+        Assertions.assertEquals(42, GCD.gcd(new int[] {42}));
+    }
 
+    @Test
+    void testLargeNumbers() {
+        Assertions.assertEquals(12, GCD.gcd(123456, 789012));
+    }
 }

From 0bfbe5b0742e60ec549ffaf60e2846e4e8aa554d Mon Sep 17 00:00:00 2001
From: Saniya2701 <185913688+Saniya2701@users.noreply.github.com>
Date: Thu, 18 Dec 2025 12:57:41 +0530
Subject: [PATCH 3/3] Fix formatting in GCD tests

---
 src/test/java/com/thealgorithms/maths/GCDTest.java | 10 +---------
 1 file changed, 1 insertion(+), 9 deletions(-)

diff --git a/src/test/java/com/thealgorithms/maths/GCDTest.java b/src/test/java/com/thealgorithms/maths/GCDTest.java
index d608dba91bc9..6bc870e94df9 100644
--- a/src/test/java/com/thealgorithms/maths/GCDTest.java
+++ b/src/test/java/com/thealgorithms/maths/GCDTest.java
@@ -52,15 +52,7 @@ void testArrayInputGcd() {
 
     @Test
     void testArrayWithCommonFactor() {
-        Assertions.assertEquals(
-            5,
-            GCD.gcd(new int[] {
-                2 * 3 * 5 * 7,
-                2 * 5 * 5 * 5,
-                2 * 5 * 11,
-                5 * 5 * 5 * 13
-            })
-        );
+        Assertions.assertEquals(5, GCD.gcd(new int[] {2 * 3 * 5 * 7, 2 * 5 * 5 * 5, 2 * 5 * 11, 5 * 5 * 5 * 13}));
     }
 
     @Test