test: test for child applied and grand children applied

Signed-off-by: Saurav Sharma <[email protected]>

src/migrator/tests.rs

@@ -357,6 +357,36 @@ async fn loop_error() {
     assert!(plan.is_err());
 }
 
+#[tokio::test]
+async fn child_before_parent() {
+    struct A;
+    migration!(A, "a", vec_box!(), vec_box!(), vec_box!());
+    struct B;
+    migration!(B, "b", vec_box!(A), vec_box!(), vec_box!());
+    let mut migrator = CustomMigrator::default();
+    migrator.add_applied_migrations(vec_box!(B));
+    let plan = generate_apply_all_plan(&mut migrator, vec_box!(A, B)).await;
+    assert!(plan.is_err());
+}
+
+#[tokio::test]
+async fn replace_test_grand_child() {
+    struct A;
+    migration!(A, "a", vec_box!(), vec_box!(), vec_box!());
+    struct B;
+    migration!(B, "b", vec_box!(A), vec_box!(), vec_box!());
+    struct C;
+    migration!(C, "c", vec_box!(), vec_box!(B), vec_box!());
+    struct D;
+    migration!(D, "d", vec_box!(), vec_box!(C), vec_box!());
+    let mut migrator = CustomMigrator::default();
+    migrator.add_applied_migrations(vec_box!(A, D));
+    let plan = generate_apply_all_plan(&mut migrator, vec_box!(D, C, B, A))
+        .await
+        .unwrap();
+    assert!(plan.is_empty());
+}
+
 #[tokio::test]
 async fn apply_plan_size_test() {
     struct A;