diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
deleted file mode 100644
index 920d12a..0000000
--- a/.github/workflows/ci.yml
+++ /dev/null
@@ -1,20 +0,0 @@
-name: CI
-
-on:
-  push:
-    branches: [ master ]
-  pull_request:
-    branches: [ master ]
-
-jobs:
-  build:
-    runs-on: ubuntu-20.04
-    strategy:
-      matrix:
-        cc: [ clang, gcc ]
-    steps:
-      - uses: actions/checkout@v2
-      - name: Build
-        run: env CFLAGS="-Wpedantic -Wall -Werror" cmake -B build && make -C build
-        env:
-          CC: /usr/bin/${{ matrix.cc }}
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
new file mode 100644
index 0000000..2386d63
--- /dev/null
+++ b/.github/workflows/test.yml
@@ -0,0 +1,28 @@
+name: Test
+
+on:
+  push:
+  pull_request:
+    branches: [master]
+
+jobs:
+  build-test:
+    runs-on: ubuntu-20.04
+    strategy:
+      matrix:
+        cc: [clang, gcc]
+    steps:
+      - uses: actions/checkout@v2
+      - name: Build
+        run: cmake -B build && make -C build
+        env:
+          CC: /usr/bin/${{ matrix.cc }}
+          CFLAGS: "-Wpedantic -Wall -Werror"
+  run-test:
+    runs-on: ubuntu-20.04
+    steps:
+      - uses: actions/checkout@v2
+      - name: Build
+        run: cmake -B build && make -C build
+      - name: Test
+        run: cd build && ctest
diff --git a/format.sh b/format.sh
index 101c3d9..01f9cf8 100755
--- a/format.sh
+++ b/format.sh
@@ -3,3 +3,4 @@
 clang-format -i {utility,espresso}/*.{h,c}
 cmake-format -i CMakeLists.txt
 shfmt -i 4 -w format.sh
+prettier --write .github/workflows/*