feat: add roll method to Dice

01.workspace/oxydice_lib/src/tst/dice_roll.rs

@@ -0,0 +1,20 @@
+#[cfg(test)]
+mod tests {
+    use crate::*;
+    #[test]
+    pub fn dice_roll_should_yield_always_the_proper_number_of_result() {
+        let mut dice = Dice::grab(3, 6);
+        for _ in 1..=1000 {
+            dice.roll();
+            assert_eq!(dice.result.die_results.len(), 3);
+        }
+    }
+    #[test]
+    pub fn dice_roll_should_yield_valid_results() {
+        let mut dice = Dice::grab(3, 6);
+        for _ in 1..=10000 {
+            dice.roll();
+            assert!(dice.result.die_results[0] < 6);
+        }
+    }
+}

01.workspace/oxydice_lib/src/tst/mod.rs

@@ -1 +1,2 @@
 pub mod dice_grab;
+pub mod dice_roll;