test: create tests for the util functions

src_code/go_src/author_file

@@ -0,0 +1,3 @@
+syntax for the test file
+au|August|August-Brandt|augustbrandt170@gmail.com
+al|Alex|Alex-itu|lolk@itu.dk

src_code/go_src/cmd/root.go

@@ -31,11 +31,12 @@ var rootCmd = &cobra.Command{
 		switch len(args) {
 		case 0:
 			// launch the tui
-			sel_auth := tui.Entry()
-			for _, a := range sel_auth {
-				fmt.Println(a)
-			}
-			os.Exit(0)
+			args = append(args, tui.Entry_CM())
+			fmt.Println(args[0])
+			//sel_auth := tui.Entry()
+			// for _, a := range sel_auth {
+			// 	fmt.Println(a)
+			// }
 		case 1:
 			if len(args) == 1 {
 				utils.GitWrapper(args[0])

src_code/go_src/cmd/utils/author_file_utils.go

@@ -47,9 +47,7 @@ func CheckAuthorFile() string {
 }
 
 func DeleteOneAuthor(author string) {
-	//author_file := Find_authorfile()
-
-	author_file := "author_file"
+	author_file := Find_authorfile()
 
 	// open author_file
 	file, err := os.OpenFile(author_file, os.O_RDWR, 0644)

src_code/go_src/cmd/utils/commit.go

@@ -98,7 +98,7 @@ func add_x_users(excludeMode []string) {
 	}
 }
 
-// helper function to select a group of users to exclude in the commit message
+// helper function to select groups of users to exclude in the commit message
 func group_selection(group []User, excludeMode []string) []string {
 	for _, user := range Users {
 		if !(slices.Contains(group, user)) {

src_code/go_src/cmd/utils/user_util.go

@@ -40,6 +40,15 @@ func Define_users(author_file string)  {
 			group_info = append(group_info, strings.Split(input[1], "|")...)
 		}
 		info := strings.Split(input_str, "|")
+		if len(info) < 4 {
+			if len(info) > 0 {
+				println("Error: User ", info[0], " is missing information")
+			} else {
+				println("Error: Some user is missing information")
+			}
+			println("Please check the author file for proper syntax")
+			os.Exit(1)
+		}
 		usr := User{Username: info[2], Email: info[3], Names: info[0] + "/" + info[1]}
 		Users[info[0]] = usr
 		Users[info[1]] = usr

src_code/go_src/cmd/utils/util_test.go

@@ -0,0 +1,98 @@
+package utils_test
+
+import (
+	"main/src_code/go_src/cmd/utils"
+	"os"
+	"testing"
+)
+
+const author_data = `syntax for the test file
+te|testing|TestUser|test@test.test|ex
+ti|testtest|UserName2|testing@user.io;;gr1`
+
+var envVar = os.Getenv("author_file")
+
+func setup() {
+	// setup test data
+	os.WriteFile("author_file_test", []byte(author_data), 0644)
+	os.Setenv("author_file", "author_file_test")
+}
+
+func teardown() {
+	// remove test data
+	os.Remove("author_file_test")
+	os.Setenv("author_file", envVar)
+}
+
+// Author tests BEGIN
+func Test_FindAuthorFile(t* testing.T) {
+	setup()
+	defer teardown()
+	// Test Find_authorfile
+	authorfile := utils.Find_authorfile()
+	if authorfile != "author_file_test" {
+		t.Errorf("Find_authorfile() = %v; want authors_file_test", authorfile)
+	}
+}
+
+func Test_DeleteAuthor(t *testing.T) {
+	setup()
+	defer teardown()
+	// Test DeleteOneAuthor
+	og_bytes, err := os.ReadFile("author_file_test")
+	if err != nil {
+		t.Errorf("Error reading file: %v", err)
+	}
+
+	utils.DeleteOneAuthor("te")
+	deleted_bytes, err := os.ReadFile("author_file_test")
+	if err != nil {
+		t.Errorf("Error reading file: %v", err)
+	}
+
+	if string(og_bytes) == string(deleted_bytes) {
+		t.Errorf("DeleteOneAuthor() did not delete author")
+	}
+}
+// Author tests END
+
+// User tests BEGIN
+func Test_DefineUsers(t *testing.T) {
+	setup()
+	defer teardown()
+	// Test Define_users
+	utils.Define_users("author_file_test")
+	if len(utils.Users) != 4 {
+		t.Errorf("Define_users() = %v; want 4", len(utils.Users))
+	}
+}
+
+func Test_RemoveUser(t *testing.T) {
+	setup()
+	defer teardown()
+	// Test RemoveUser
+	utils.Define_users("author_file_test")
+
+	utils.RemoveUser("te")
+	
+	if len(utils.Users) != 3 {
+		t.Errorf("RemoveUser() = %v; want 3", len(utils.Users))
+	}
+}
+// User tests END
+
+// Commit tests BEGIN
+
+func Test_Commit(t* testing.T) {
+	setup()
+	defer teardown()
+	utils.Define_users("author_file_test")
+	// Test Commit
+	authors := []string{"te"}
+	message := "Test commit message"
+	commit := utils.Commit(message, authors)
+	if commit != "Test commit message\n\nCo-authored-by: TestUser <test@test.test>" {
+		t.Errorf("Commit() = %v; want Test commit message\n", commit)
+	}
+}
+// Commit tests END