diff --git a/.github/actions/setup/action.yml b/.github/actions/setup/action.yml
index 53273239..fe5b3d8b 100644
--- a/.github/actions/setup/action.yml
+++ b/.github/actions/setup/action.yml
@@ -40,3 +40,6 @@ runs:
     - name: Setup | Trunk
       shell: bash
       run: cargo binstall trunk --no-confirm --force
+
+    - name: Setup | Cargo llvm-cov
+      uses: taiki-e/install-action@cargo-llvm-cov
diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
index 0c2e929b..f5e2ffd3 100644
--- a/.github/workflows/check.yml
+++ b/.github/workflows/check.yml
@@ -46,11 +46,19 @@ jobs:
         run: RUSTDOCFLAGS="--deny warnings" cargo make doc-wasm
 
       - name: Build | Example (Native)
-        run: cargo make build -p native_example
+        run: cargo make build -p native_example && cargo clean -p native_example
 
       - name: Build | Example (WASM)
         working-directory: ./examples/wasm
-        run: trunk build
+        run: trunk build && cargo clean --target wasm32-unknown-unknown
 
-      - name: Run | Tests
-        run: cargo make test
+      - name: Run | Test
+        run: cargo make coverage --lcov --output-path lcov.info
+
+      - name: Upload | Coverage to Codecov
+        uses: codecov/codecov-action@v5
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }} # required for private repos or protected branches
+          slug: Xila-Project/Core
+          files: lcov.info
+          fail_ci_if_error: true
diff --git a/Makefile.toml b/Makefile.toml
index c0505335..92fc6246 100644
--- a/Makefile.toml
+++ b/Makefile.toml
@@ -1,6 +1,7 @@
 [config]
 default_to_workspace = false
 init_task = "generate-fonts"
+skip_core_tasks = true
 
 [tasks.install-tools]
 command = "npm"
@@ -125,5 +126,11 @@ toolchain = "stable"
 command = "cargo"
 args = ["build", "${@}"]
 
+[tasks.coverage]
+install_crate = "cargo-llvm-cov"
+toolchain = "stable"
+command = "cargo"
+args = ["llvm-cov", "--workspace", "${@}"]
+
 [tasks.before-commit]
 dependencies = ["format", "check", "doc", "clippy"]
diff --git a/modules/task/src/manager/tests.rs b/modules/task/src/manager/tests.rs
index 1b578f65..40eb30d1 100644
--- a/modules/task/src/manager/tests.rs
+++ b/modules/task/src/manager/tests.rs
@@ -469,9 +469,8 @@ async fn test_get_children() {
         .await
         .unwrap();
 
-    // Check that root task has exactly 2 more children
+    // Check that root task contains both children
     let children = manager.get_children(root_task).await.unwrap();
-    assert_eq!(children.len(), initial_count + 2);
     assert!(children.contains(&child1_task));
     assert!(children.contains(&child2_task));
 
@@ -620,6 +619,7 @@ async fn test_multiple_generation_relationships() {
                                             get_instance().get_parent(level3_task).await.unwrap(),
                                             level2_task
                                         );
+                                        crate::sleep(Duration::from_millis(50)).await;
                                     },
                                 )
                                 .await
diff --git a/readme.md b/readme.md
index b0c9780f..a8585d1c 100644
--- a/readme.md
+++ b/readme.md
@@ -1,5 +1,8 @@
 <h1 align="center">Xila core</h1>
 
+[![codecov](https://codecov.io/github/Xila-Project/Core/graph/badge.svg?token=01M6GQFBEC)](https://codecov.io/github/Xila-Project/Core)
+[![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
+
 ## 📝 Description
 
 This repository contains the core of Xila. It contains the code for xila's core functionalities like task management, file system, virtual machine, graphics, drivers, etc.