From 52b72ffb1b23ae5a94b5b6f2c21c11a570e73f27 Mon Sep 17 00:00:00 2001
From: nprimo <primo.niccolo@gmail.com>
Date: Mon, 29 Apr 2024 12:37:34 +0100
Subject: [PATCH] feat(gcd): make gcd solution a function instead of a program

- update tests accordingly
---
 solutions/gcd.go       | 12 ++++++++++++
 solutions/gcd/main.go  | 26 -------------------------
 tests/gcd_test/main.go | 44 ++++++++++++++++++++++--------------------
 3 files changed, 35 insertions(+), 47 deletions(-)
 create mode 100644 solutions/gcd.go
 delete mode 100644 solutions/gcd/main.go

diff --git a/solutions/gcd.go b/solutions/gcd.go
new file mode 100644
index 00000000..bf9a2157
--- /dev/null
+++ b/solutions/gcd.go
@@ -0,0 +1,12 @@
+package solutions
+
+func Gcd(a, b uint) uint {
+	for a != b {
+		if a > b {
+			a -= b
+		} else {
+			b -= a
+		}
+	}
+	return a
+}
diff --git a/solutions/gcd/main.go b/solutions/gcd/main.go
deleted file mode 100644
index 952865b2..00000000
--- a/solutions/gcd/main.go
+++ /dev/null
@@ -1,26 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"os"
-	"strconv"
-)
-
-func gcd(a, b int) int {
-	for a != b {
-		if a > b {
-			a -= b
-		} else {
-			b -= a
-		}
-	}
-	return a
-}
-
-func main() {
-	if len(os.Args) == 3 {
-		a, _ := strconv.Atoi(os.Args[1])
-		b, _ := strconv.Atoi(os.Args[2])
-		fmt.Println(gcd(a, b))
-	}
-}
diff --git a/tests/gcd_test/main.go b/tests/gcd_test/main.go
index 23d15612..3db5d4d9 100644
--- a/tests/gcd_test/main.go
+++ b/tests/gcd_test/main.go
@@ -1,30 +1,32 @@
 package main
 
 import (
-	"strconv"
-
-	"github.com/01-edu/go-tests/lib/challenge"
-	"github.com/01-edu/go-tests/lib/random"
+	"fmt"
+	"os"
+	student "student"
 )
 
 func main() {
-	args := [][]string{
-		{"42", "10"},
-		{"42", "12"},
-		{"14", "77"},
-		{"17", "3"},
-		{"23"},
-		{"12", "23"},
-		{"25", "15"},
-		{"23043", "122"},
-		{"11", "77"},
-	}
-	for i := 0; i < 5; i++ {
-		a := strconv.Itoa(random.IntBetween(1, 100000))
-		b := strconv.Itoa(random.IntBetween(1, 100))
-		args = append(args, []string{a, b})
+	testCases := []struct {
+		a    uint
+		b    uint
+		want uint
+	}{
+		{42, 10, 2},
+		{42, 12, 6},
+		{14, 77, 7},
+		{17, 3, 1},
+		{12, 23, 1},
+		{25, 15, 5},
+		{23043, 122, 1},
+		{11, 77, 11},
 	}
-	for _, v := range args {
-		challenge.Program("gcd", v...)
+
+	for _, tc := range testCases {
+		got := student.Gcd(tc.a, tc.b)
+		if got != tc.want {
+			fmt.Printf("Gcd(%d, %d) = %d instead of %d\n", tc.a, tc.b, got, tc.want)
+			os.Exit(1)
+		}
 	}
 }