diff --git a/strings_test.go b/strings_test.go
index a30bbff..5b0fece 100644
--- a/strings_test.go
+++ b/strings_test.go
@@ -27,15 +27,15 @@ func Benchmark_ToUpper(b *testing.B) {
 	})
 	b.Run("IfToUpper-Upper", func(b *testing.B) {
 		for n := 0; n < b.N; n++ {
-			res = IfToUpper(upperStr)
+			res = IfToUpper("/REPOS/GOFIBER/FIBER/ISSUES/187643/COMMENTS")
 		}
-		require.Equal(b, upperStr, res)
+		AssertEqual(b, "/REPOS/GOFIBER/FIBER/ISSUES/187643/COMMENTS", res)
 	})
 	b.Run("IfToUpper-Mixed", func(b *testing.B) {
 		for n := 0; n < b.N; n++ {
-			res = IfToUpper(largeStr)
+			res = IfToUpper(path)
 		}
-		require.Equal(b, upperStr, res)
+		AssertEqual(b, "/REPOS/GOFIBER/FIBER/ISSUES/187643/COMMENTS", res)
 	})
 	b.Run("default", func(b *testing.B) {
 		for n := 0; n < b.N; n++ {
@@ -70,15 +70,15 @@ func Benchmark_ToLower(b *testing.B) {
 	})
 	b.Run("IfToLower-Lower", func(b *testing.B) {
 		for n := 0; n < b.N; n++ {
-			res = IfToLower(lowerStr)
+			res = IfToLower("/repos/gofiber/fiber/issues/187643/comments")
 		}
-		require.Equal(b, lowerStr, res)
+		AssertEqual(b, "/repos/gofiber/fiber/issues/187643/comments", res)
 	})
 	b.Run("IfToLower-Mixed", func(b *testing.B) {
 		for n := 0; n < b.N; n++ {
-			res = IfToLower(largeStr)
+			res = IfToLower(path)
 		}
-		require.Equal(b, lowerStr, res)
+		AssertEqual(b, "/repos/gofiber/fiber/issues/187643/comments", res)
 	})
 	b.Run("default", func(b *testing.B) {
 		for n := 0; n < b.N; n++ {
@@ -174,17 +174,17 @@ func Benchmark_Trim(b *testing.B) {
 
 func Test_IfToUpper(t *testing.T) {
 	t.Parallel()
-	require.Equal(t, "MYNAMEISPARAM", IfToUpper("MYNAMEISPARAM")) // already uppercase
-	require.Equal(t, "MYNAMEISPARAM", IfToUpper("mynameisparam")) // lowercase to uppercase
-	require.Equal(t, "MYNAMEISPARAM", IfToUpper("MyNameIsParam")) // mixed case
+	AssertEqual(t, "MYNAMEISPARAM", IfToUpper("MYNAMEISPARAM")) // already uppercase
+	AssertEqual(t, "MYNAMEISPARAM", IfToUpper("mynameisparam")) // lowercase to uppercase
+	AssertEqual(t, "MYNAMEISPARAM", IfToUpper("MyNameIsParam")) // mixed case
 }
 
 func Test_IfToLower(t *testing.T) {
 	t.Parallel()
-	require.Equal(t, "mynameisparam", IfToLower("mynameisparam"))           // already lowercase
-	require.Equal(t, "mynameisparam", IfToLower("myNameIsParam"))           // mixed case
-	require.Equal(t, "https://gofiber.io", IfToLower("https://gofiber.io")) // Origin Header Type URL
-	require.Equal(t, "mynameisparam", IfToLower("MYNAMEISPARAM"))           // uppercase to lowercase
+	AssertEqual(t, "mynameisparam", IfToLower("mynameisparam"))           // already lowercase
+	AssertEqual(t, "mynameisparam", IfToLower("myNameIsParam"))           // mixed case
+	AssertEqual(t, "https://gofiber.io", IfToLower("https://gofiber.io")) // Origin Header Type URL
+	AssertEqual(t, "mynameisparam", IfToLower("MYNAMEISPARAM"))           // uppercase to lowercase
 }
 
 // Benchmark_IfToLower_HeadersOrigin benchmarks the IfToLower function with an origin header type URL.
@@ -195,18 +195,18 @@ func Benchmark_IfToToLower_HeadersOrigin(b *testing.B) {
 		for n := 0; n < b.N; n++ {
 			res = ToLower("https://gofiber.io")
 		}
-		require.Equal(b, "https://gofiber.io", res)
+		AssertEqual(b, "https://gofiber.io", res)
 	})
 	b.Run("IfToLower-Lower", func(b *testing.B) {
 		for n := 0; n < b.N; n++ {
 			res = IfToLower("https://gofiber.io")
 		}
-		require.Equal(b, "https://gofiber.io", res)
+		AssertEqual(b, "https://gofiber.io", res)
 	})
 	b.Run("default", func(b *testing.B) {
 		for n := 0; n < b.N; n++ {
 			res = strings.ToLower("https://gofiber.io")
 		}
-		require.Equal(b, "https://gofiber.io", res)
+		AssertEqual(b, "https://gofiber.io", res)
 	})
 }