Create pipeline for tests and shellcheck

Closes: #29

Signed-off-by: Arthur Diniz <[email protected]>

.github/workflows/test.yml

@@ -0,0 +1,46 @@
+name: Tests
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  shellcheck:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Install shellcheck
+        run: |
+          sudo apt-get update && sudo apt-get install -y shellcheck
+
+      - name: Run shellcheck
+        run: |
+          shellcheck wcurl tests/*
+
+  test:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, macos-latest]
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Install shunit2
+        run: |
+          if [[ "${{ matrix.os }}" == "ubuntu-latest" ]]; then
+            sudo apt-get update
+            sudo apt-get install -y shunit2
+          elif [[ "${{ matrix.os }}" == "macos-latest" ]]; then
+            brew install shunit2
+          fi
+
+      - name: Run shunit2 tests
+        run: |
+          shunit2 ./tests/*