diff --git a/test/gcd/gcd.test.js b/test/gcd/gcd.test.js
index e1904173d..4df17ce90 100644
--- a/test/gcd/gcd.test.js
+++ b/test/gcd/gcd.test.js
@@ -5,7 +5,8 @@ test('Testing gcd', (t) => {
 	//For more information on all the methods supported by tape
 	//Please go to https://github.com/substack/tape
 	t.true(typeof gcd === 'function', 'gcd is a Function');
-	//t.deepEqual(gcd(args..), 'Expected');
+	t.equal(gcd(8, 36), 4, "Calculates the greatest common divisor between two or more numbers/arrays");
+	t.equal(gcd(...[12, 8, 32]), 4, "Calculates the greatest common divisor between two or more numbers/arrays");	//t.deepEqual(gcd(args..), 'Expected');
 	//t.equal(gcd(args..), 'Expected');
 	//t.false(gcd(args..), 'Expected');
 	//t.throws(gcd(args..), 'Expected');
diff --git a/test/geometricProgression/geometricProgression.test.js b/test/geometricProgression/geometricProgression.test.js
index d0f8d1e8e..09fb3093d 100644
--- a/test/geometricProgression/geometricProgression.test.js
+++ b/test/geometricProgression/geometricProgression.test.js
@@ -5,6 +5,9 @@ test('Testing geometricProgression', (t) => {
 	//For more information on all the methods supported by tape
 	//Please go to https://github.com/substack/tape
 	t.true(typeof geometricProgression === 'function', 'geometricProgression is a Function');
+	t.deepEqual(geometricProgression(256), [1, 2, 4, 8, 16, 32, 64, 128, 256], "Initializes an array containing the numbers in the specified range");
+	t.deepEqual(geometricProgression(256, 3), [3, 6, 12, 24, 48, 96, 192], "Initializes an array containing the numbers in the specified range");
+	t.deepEqual(geometricProgression(256, 1, 4), [1, 4, 16, 64, 256], "Initializes an array containing the numbers in the specified range");
 	//t.deepEqual(geometricProgression(args..), 'Expected');
 	//t.equal(geometricProgression(args..), 'Expected');
 	//t.false(geometricProgression(args..), 'Expected');