upped test coverage of helpers

Backend/helper/strings_test.go

@@ -0,0 +1,47 @@
+package helper
+
+import "testing"
+
+func TestGetFirst(t *testing.T) {
+	tests := []struct {
+		name string
+		a    any
+		b    any
+		want any
+	}{
+		{"ints", 10, 20, 10},
+		{"strings", "first", "second", "first"},
+		{"mixed", "abc", 123, "abc"},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got := GetFirst(tt.a, tt.b)
+			if got != tt.want {
+				t.Errorf("GetFirst(%v, %v) = %v, want %v", tt.a, tt.b, got, tt.want)
+			}
+		})
+	}
+}
+
+func TestGetSecond(t *testing.T) {
+	tests := []struct {
+		name string
+		a    any
+		b    any
+		want any
+	}{
+		{"ints", 10, 20, 20},
+		{"strings", "first", "second", "second"},
+		{"mixed", "abc", 123, 123},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got := GetSecond(tt.a, tt.b)
+			if got != tt.want {
+				t.Errorf("GetSecond(%v, %v) = %v, want %v", tt.a, tt.b, got, tt.want)
+			}
+		})
+	}
+}