diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
new file mode 100644
index 00000000..269fd395
--- /dev/null
+++ b/.github/workflows/build.yml
@@ -0,0 +1,23 @@
+name: build
+on:
+  pull_request:
+    branches: [ master ]
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout 🛎️
+        uses: actions/checkout@v2.3.1
+
+      - name: Setup cmake
+        uses: jwlawson/actions-setup-cmake@v1.9
+        with:
+          cmake-version: '3.13.x'
+          
+      - name: Get Libraries
+        run: git submodule update --init --recursive
+
+      - name: Build
+        run: |
+          cmake -B build
+          cmake --build ./build
\ No newline at end of file
diff --git a/test/poker2/card.c b/test/poker2/card.c
index aac23502..531cb6a3 100644
--- a/test/poker2/card.c
+++ b/test/poker2/card.c
@@ -14,14 +14,32 @@ void setUp(void) {
 void tearDown(void) {
 }
 
-void test_add_should_AddNumbersTogether(void) {
-  TEST_ASSERT_EQUAL_INT32(32, 16+16);
+void test_cardWriteDeck_should_WriteCardsToArray() {
+  card_t cards[CARD_DECK_SIZE];
+  cardWriteDeck(cards);
+  
+  TEST_ASSERT_EQUAL_UINT8(CARD_CLUBS_TWO, cards[0]);
+  TEST_ASSERT_EQUAL_UINT8(CARD_CLUBS_THREE, cards[1]);
+  TEST_ASSERT_EQUAL_UINT8(CARD_CLUBS_FOUR, cards[2]);
+  TEST_ASSERT_EQUAL_UINT8(CARD_CLUBS_ACE, cards[12]);
+
+  TEST_ASSERT_EQUAL_UINT8(CARD_DIAMONDS_NINE, cards[20]);
+
+  TEST_ASSERT_EQUAL_UINT8(CARD_HEARTS_ACE, cards[38]);
+
+  TEST_ASSERT_EQUAL_UINT8(CARD_SPADES_ACE, cards[51]);
+}
+
+void test_cardWriteDeck_should_ReturnCardsWritten() {
+  card_t cards[CARD_DECK_SIZE];
+  TEST_ASSERT_EQUAL_UINT8(CARD_DECK_SIZE, cardWriteDeck(cards));
 }
 
 int main() {
   UNITY_BEGIN();
   
-  RUN_TEST(test_add_should_AddNumbersTogether);
+  RUN_TEST(test_cardWriteDeck_should_WriteCardsToArray);
+  RUN_TEST(test_cardWriteDeck_should_ReturnCardsWritten);
 
   return UNITY_END();
 }
\ No newline at end of file