added more add mod integration tests

tests/add_mod_test.rs

@@ -14,10 +14,12 @@ fn load_root() -> RootConfig {
 }
 
 #[test]
-fn add_simple_mod() -> Result<(), Box<dyn Error>> {
+fn add_plain() -> Result<(), Box<dyn Error>> {
     let root_config = load_root();
     let mut instance = root_config.load_instance_by_id("instance_minimal")?;
-    let mod_to_install = root_config.mod_by_id("add_test_1").expect("Mod not found");
+    let mod_to_install = root_config
+        .mod_by_id("add_test_plain")
+        .expect("Mod not found");
     let files_to_add = files_to_install_mod(&root_config, &instance, &mod_to_install)?;
 
     insert_mod_to_instance(&mut instance, &mod_to_install, &files_to_add, 0)?;
@@ -28,7 +30,7 @@ fn add_simple_mod() -> Result<(), Box<dyn Error>> {
 
     let the_mod = installed_mods.first().expect("Asserted before");
 
-    assert_eq!(the_mod.mod_id(), "add_test_1");
+    assert_eq!(the_mod.mod_id(), "add_test_plain");
     assert_eq!(the_mod.priority(), 0);
 
     let expected_files: HashSet<_> = [Link::new("plugin.esp", "Data/plugin.esp")]
@@ -43,3 +45,100 @@ fn add_simple_mod() -> Result<(), Box<dyn Error>> {
 
     Ok(())
 }
+
+#[test]
+fn add_nested() -> Result<(), Box<dyn Error>> {
+    let root_config = load_root();
+    let mut instance = root_config.load_instance_by_id("instance_minimal")?;
+    let mod_to_install = root_config
+        .mod_by_id("add_test_nested")
+        .expect("Mod not found");
+    let files_to_add = files_to_install_mod(&root_config, &instance, &mod_to_install)?;
+
+    insert_mod_to_instance(&mut instance, &mod_to_install, &files_to_add, 0)?;
+
+    let installed_mods = instance.mods();
+
+    assert_eq!(installed_mods.len(), 1);
+
+    let the_mod = installed_mods.first().expect("Asserted before");
+
+    assert_eq!(the_mod.mod_id(), "add_test_nested");
+    assert_eq!(the_mod.priority(), 0);
+
+    let expected_files: HashSet<_> = [Link::new("Data/plugin.esp", "Data/plugin.esp")]
+        .into_iter()
+        .collect();
+
+    assert_eq!(
+        *the_mod.files(),
+        expected_files,
+        "Installed files missmatch"
+    );
+
+    Ok(())
+}
+
+#[test]
+fn add_root() -> Result<(), Box<dyn Error>> {
+    let root_config = load_root();
+    let mut instance = root_config.load_instance_by_id("instance_minimal")?;
+    let mod_to_install = root_config
+        .mod_by_id("add_test_root")
+        .expect("Mod not found");
+    let files_to_add = files_to_install_mod(&root_config, &instance, &mod_to_install)?;
+
+    insert_mod_to_instance(&mut instance, &mod_to_install, &files_to_add, 0)?;
+
+    let installed_mods = instance.mods();
+
+    assert_eq!(installed_mods.len(), 1, "No mod was added");
+
+    let the_mod = installed_mods.first().expect("Asserted before");
+
+    assert_eq!(the_mod.mod_id(), "add_test_root");
+    assert_eq!(the_mod.priority(), 0);
+
+    let expected_files: HashSet<_> = [Link::new("skse.exe", "skse.exe")].into_iter().collect();
+
+    assert_eq!(
+        *the_mod.files(),
+        expected_files,
+        "Installed files missmatch"
+    );
+
+    Ok(())
+}
+
+#[test]
+fn add_filter() -> Result<(), Box<dyn Error>> {
+    let root_config = load_root();
+    let mut instance = root_config.load_instance_by_id("instance_minimal")?;
+    let mod_to_install = root_config
+        .mod_by_id("add_test_filter")
+        .expect("Mod not found");
+    let files_to_add = files_to_install_mod(&root_config, &instance, &mod_to_install)?;
+
+    insert_mod_to_instance(&mut instance, &mod_to_install, &files_to_add, 0)?;
+
+    let installed_mods = instance.mods();
+
+    assert_eq!(installed_mods.len(), 1, "No mod was added");
+
+    let the_mod = installed_mods.first().expect("Asserted before");
+
+    assert_eq!(the_mod.mod_id(), "add_test_filter");
+    assert_eq!(the_mod.priority(), 0);
+
+    let expected_files: HashSet<_> = [Link::new("plugin.esp", "plugin.esp")]
+        .into_iter()
+        .collect();
+
+    assert_eq!(
+        *the_mod.files(),
+        expected_files,
+        "Installed files missmatch"
+    );
+
+    Ok(())
+}