created action to run tests and show results in readme

.github/workflows/tests.yml

@@ -0,0 +1,43 @@
+name: Tests
+
+on:
+  push:
+    branches: [ "master" ]
+  pull_request:
+    branches: [ "master" ]
+
+jobs:
+  testing:
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v2
+
+    - name: Install Dart
+      uses: dart-lang/setup-dart@v1
+      with:
+        sdk: 'stable'
+
+    - name: Install dependencies
+      run: dart pub get
+
+    - name: Run tests
+      run: dart test --coverage=coverage
+
+    - name: Install lcov
+      run: sudo apt-get install -y lcov
+
+    - name: Generate coverage report
+      run: |
+        dart pub global activate coverage
+        dart pub global run coverage:format_coverage --lcov --in=coverage --out=coverage/lcov.info --report-on=lib
+
+    - name: Upload coverage to Codecov
+      uses: codecov/codecov-action@v3
+      with:
+        files: coverage/lcov.info
+        flags: unittests
+        name: codecov-umbrella
+        fail_ci_if_error: true
+        token: ${{ secrets.CODECOV_TOKEN }}

README.md

@@ -1,3 +1,5 @@
+[![Tests](https://github.com/JannesNebendahl/dilithium/actions/workflows/dart.yml/badge.svg)](https://github.com/JannesNebendahl/dilithium/actions/workflows/dart.yml)
+[![codecov](https://codecov.io/github/JannesNebendahl/dilithium/graph/badge.svg?token=22U0DA66BD)](https://codecov.io/github/JannesNebendahl/dilithium)  
 Dart implementation of the [Dilithium](https://www.pq-crystals.org/dilithium/) signature scheme, which supports all 3 security levels (2, 3, 5)
 
 ## Usage
@@ -34,8 +36,8 @@ In order to instantiate the keys from a byte representation, the `.deserialize(s
 Uint8List encodedPublicKey = keyPair.publicKey.serialize();
 Uint8List encodedPrivateKey = keyPair.privateKey.serialize();
 
-DilithiumPublicKey reinstantiatedPublicKey = DilithiumPublicKey.deserialize(DilithiumParameterSpec.LEVEL3, encodedPublicKey);
-DilithiumPrivateKey reinstantiatedPrivateKey = DilithiumPrivateKey.deserialize(DilithiumParameterSpec.LEVEL3, encodedPrivateKey);
+final reinstantiatedPk = DilithiumPublicKey.deserialize(DilithiumParameterSpec.LEVEL3, encodedPublicKey);
+final reinstantiatedSk = DilithiumPrivateKey.deserialize(DilithiumParameterSpec.LEVEL3, encodedPrivateKey);
 ```
 
 ## What is Dilithium