with state changing transaction

tests/state_changer.rs

@@ -1,4 +1,4 @@
-use state_queue::StateOwner;
+use state_queue::{StateModifier, StateOwner};
 
 #[test]
 fn create_state_owner() {
@@ -7,4 +7,42 @@ fn create_state_owner() {
     let example = StateOwner::new(String::from("State Owner Created!"));
 
     assert_eq!(example.get_state(), "State Owner Created!");
+}
+
+#[test]
+fn create_and_modify_state_owner() {
+    let example = StateOwner::new(String::from("State Owner Created!"));
+
+    let mut modifiers: Vec<StateModifier> = Vec::new();
+
+    modifiers.push(StateModifier::ReplaceAt(0, b's'));
+    modifiers.push(StateModifier::ReplaceAt(6, b'o'));
+    modifiers.push(StateModifier::ReplaceAt(12, b'c'));
+    modifiers.push(StateModifier::ReplaceFull(String::from("State Fully Changed!")));
+
+    let keeper = example.begin_transaction();
+
+    //check individually
+    for modifier in &modifiers {
+        let is_valid = example.check_transactions(&keeper, std::slice::from_ref(modifier));
+        println!("{modifier:?} - Valid? {is_valid}");
+
+        assert!(is_valid);
+    }
+
+    //check all at once
+
+    let is_valid = example.check_transactions(&keeper, modifiers.as_slice());
+
+    println!("All valid in one shot? {is_valid}");
+
+    assert!(is_valid);
+
+    example.close_transaction(keeper, modifiers);
+
+    println!("Current State? {}", example.get_state());
+
+    assert_eq!(example.get_state(), "State Fully Changed!");
+
+
 }