diff --git a/tests/add_mod_test.rs b/tests/add_mod_test.rs
index ef135c2..e09fe4e 100644
--- a/tests/add_mod_test.rs
+++ b/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(())
+}
diff --git a/tests/data/mods/add_test_1/plugin.esp b/tests/data/mods/add_test_1/plugin.esp
deleted file mode 100644
index f11894c..0000000
--- a/tests/data/mods/add_test_1/plugin.esp
+++ /dev/null
@@ -1 +0,0 @@
-plugin.esl-add_test_1
diff --git a/tests/data/mods/add_test_filter/image.jpg b/tests/data/mods/add_test_filter/image.jpg
new file mode 100644
index 0000000..9c6e766
--- /dev/null
+++ b/tests/data/mods/add_test_filter/image.jpg
@@ -0,0 +1 @@
+image.jpg
diff --git a/tests/data/mods/add_test_filter/plugin.esp b/tests/data/mods/add_test_filter/plugin.esp
new file mode 100644
index 0000000..ed28682
--- /dev/null
+++ b/tests/data/mods/add_test_filter/plugin.esp
@@ -0,0 +1 @@
+plugin.esp
diff --git a/tests/data/mods/add_test_filter/readme.txt b/tests/data/mods/add_test_filter/readme.txt
new file mode 100644
index 0000000..b2b2a78
--- /dev/null
+++ b/tests/data/mods/add_test_filter/readme.txt
@@ -0,0 +1 @@
+readme.txt
diff --git a/tests/data/mods/add_test_filter/sub/extra.esp b/tests/data/mods/add_test_filter/sub/extra.esp
new file mode 100644
index 0000000..2a19889
--- /dev/null
+++ b/tests/data/mods/add_test_filter/sub/extra.esp
@@ -0,0 +1 @@
+extra.esp
diff --git a/tests/data/mods/add_test_nested/Data/plugin.esp b/tests/data/mods/add_test_nested/Data/plugin.esp
new file mode 100644
index 0000000..6cd0f4c
--- /dev/null
+++ b/tests/data/mods/add_test_nested/Data/plugin.esp
@@ -0,0 +1 @@
+plugin.esp-add_test_2
diff --git a/tests/data/mods/add_test_plain/plugin.esp b/tests/data/mods/add_test_plain/plugin.esp
new file mode 100644
index 0000000..3762a98
--- /dev/null
+++ b/tests/data/mods/add_test_plain/plugin.esp
@@ -0,0 +1 @@
+plugin.esp-add_test_1
diff --git a/tests/data/mods/add_test_root/skse.exe b/tests/data/mods/add_test_root/skse.exe
new file mode 100644
index 0000000..182bf20
--- /dev/null
+++ b/tests/data/mods/add_test_root/skse.exe
@@ -0,0 +1 @@
+skse.exe
diff --git a/tests/data/root_config_complex.toml b/tests/data/root_config_complex.toml
index 63b9589..3dc2818 100644
--- a/tests/data/root_config_complex.toml
+++ b/tests/data/root_config_complex.toml
@@ -29,5 +29,17 @@ path = "mod2"
 [mods.mod3]
 path = "mod3"
 
-[mods.add_test_1]
-path = "add_test_1"
+[mods.add_test_plain]
+path = "add_test_plain"
+
+[mods.add_test_nested]
+path = "add_test_nested"
+
+[mods.add_test_root]
+path = "add_test_root"
+root_mod = true
+
+[mods.add_test_filter]
+path = "add_test_filter"
+ignore = [ "*.txt", "image.jpg", "sub/*" ]
+root_mod = true