diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f6b509ab..e831ccfc 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -39,8 +39,8 @@ jobs:
         extensions: 'hpp,cpp'
         clangFormatVersion: 17
 
-  build-gcc:
-    name: Build on Ubuntu GCC
+  build-test-gcc:
+    name: Build and test (Ubuntu GCC)
     runs-on: ubuntu-latest
     needs: code-style-check
     container:
@@ -62,6 +62,8 @@ jobs:
           git config --global --add safe.directory $(pwd)
           cmake -S compiler -B build -G Ninja -DCMAKE_BUILD_TYPE=Release -DENABLE_CODEGEN='ast_to_llvmir;optree_to_llvmir'
           cmake --build build --parallel
+      - name: Run tests
+        run: ctest --test-dir build --output-on-failure
       - name: Archive binaries
         run: tar cf binaries.tar -C build bin
       - name: Upload binaries
@@ -70,8 +72,8 @@ jobs:
           name: binaries-ubuntu-latest-gcc
           path: binaries.tar
 
-  build-clang:
-    name: Build on Ubuntu Clang
+  build-test-clang:
+    name: Build and test (Ubuntu Clang)
     runs-on: ubuntu-latest
     needs: code-style-check
     container:
@@ -92,9 +94,11 @@ jobs:
         run: |
           cmake -S compiler -B build -G Ninja -DCMAKE_BUILD_TYPE=Release -DENABLE_CODEGEN='ast_to_llvmir;optree_to_llvmir'
           cmake --build build --parallel
+      - name: Run tests
+        run: ctest --test-dir build --output-on-failure
 
-  build-msvc:
-    name: Build on Windows MSVC
+  build-test-msvc:
+    name: Build and test (Windows MSVC)
     runs-on: windows-latest
     needs: code-style-check
     steps:
@@ -106,45 +110,13 @@ jobs:
         run: |
           cmake -S compiler -B build -G "Visual Studio 17 2022" -A x64 -DCMAKE_BUILD_TYPE=Release
           cmake --build build --parallel
-
-  unit-test:
-    name: Unit test
-    runs-on: ubuntu-latest
-    needs: build-gcc
-    container:
-      image: ghcr.io/vla5924-practice/compiler-project/devcontainer:latest
-      options: --user root
-      credentials:
-        username: ${{ github.actor }}
-        password: ${{ secrets.github_token }}
-    steps:
-      - name: Download binaries
-        uses: actions/download-artifact@v4
-        with:
-          name: binaries-ubuntu-latest-gcc
-      - name: Extract binaries
-        run: tar xf binaries.tar
-      - name: Run AST interface tests
-        run: ./bin/ast_test
-      - name: Run operation tree interface tests
-        run: ./bin/optree_test
-      - name: Run frontend tests
-        run: ./bin/frontend_test
-      - name: Run AST-based backend tests
-        run: ./bin/backend_ast_test
-      - name: Run optree-based backend tests
-        run: ./bin/backend_optree_test
-      - name: Run codegen tests (AST to LLVM IR)
-        run: ./bin/codegen_ast_to_llvmir_test
-      - name: Run codegen tests (optree to LLVM IR)
-        run: ./bin/codegen_optree_to_llvmir_test
-      - name: Run utility tests
-        run: ./bin/utils_test
+      - name: Run tests
+        run: ctest --test-dir build --output-on-failure
 
   code-coverage:
     name: Code coverage
     runs-on: ubuntu-latest
-    needs: build-gcc
+    needs: build-test-gcc
     container:
       image: ghcr.io/vla5924-practice/compiler-project/devcontainer:latest
       options: --user root
@@ -209,7 +181,6 @@ jobs:
       - name: Build compilation database
         run: |
           cmake -S compiler -B build -G Ninja -DCMAKE_BUILD_TYPE=Release -DENABLE_CODEGEN='ast_to_llvmir;optree_to_llvmir'
-          cmake --build build --parallel
       - name: Run clang-tidy analysis
         run: |
           git diff -U0 origin/main | clang-tidy-diff -p1 -path build > clang-tidy.log