diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 000000000..23592a2
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,29 @@
+name: Continuous Integration
+
+on: push
+
+env:
+    CARGO_TERM_COLOR: always
+
+jobs:
+    check:
+        runs-on: ubuntu-latest
+        name: Check
+        steps:
+            - uses: actions/checkout@v2
+            - name: cargo check
+              run: cargo check
+    test:
+        runs-on: ubuntu-latest
+        name: Test
+        steps:
+            - uses: actions/checkout@v2
+            - name: cargo test
+              run: cargo test
+    clippy:
+        runs-on: ubuntu-latest
+        name: Lint (clippy)
+        steps:
+            - uses: actions/checkout@v2
+            - name: cargo clippy
+              run: cargo clippy -- -D warnings
diff --git a/.gitignore b/.gitignore
index 6969c26..fd16741 100644
--- a/.gitignore
+++ b/.gitignore
@@ -14,5 +14,3 @@ target/
 /src/inputs/*
 !/src/inputs/.keep
 
-/src/test_inputs/*
-!/src/test_inputs/.keep
diff --git a/src/test_inputs/01.txt b/src/test_inputs/01.txt
new file mode 100644
index 000000000..e69de29