Add automated testing workflow with GTest integration

.github/workflows/compilation.yaml

@@ -9,6 +9,8 @@ on:
 jobs:
   build:
     runs-on: ubuntu-latest
+    permissions:
+      contents: read
 
     steps:
     - name: Checkout code

.github/workflows/test.yaml

@@ -0,0 +1,60 @@
+name: Run Tests
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      checks: write
+
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+
+    - name: Install Conan
+      uses: conan-io/setup-conan@v1
+
+    - name: Create default Conan profile
+      run: conan profile detect --force
+
+    - name: Create build directory
+      run: mkdir -p src/build
+
+    - name: Install dependencies
+      run: conan install src --output-folder=src/build --build=missing
+
+    - name: Configure CMake
+      working-directory: src
+      run: cmake --preset conan-release
+
+    - name: Build
+      working-directory: src
+      run: cmake --build --preset conan-release
+
+    - name: Run unit tests
+      working-directory: src
+      run: |
+        echo "Running SHA implementation tests..."
+        ./run_all_ut.sh Release
+        # Also generate XML output for test reporting
+        ./build/Release/ut_sha_functions --gtest_output=xml:test-results.xml
+      continue-on-error: false
+
+    - name: Publish test results
+      uses: EnricoMi/publish-unit-test-result-action@v2
+      if: always()
+      with:
+        files: |
+          src/test-results.xml
+        check_name: "Unit Test Results"
+        comment_mode: "off"
+
+    - name: Test Summary
+      if: always()
+      run: echo "✅ All tests completed successfully"

README.md

@@ -1,6 +1,7 @@
 # Italian: Implementazione Secure Hash Algorithm (SHA)
 
 [![Cmake compilation Conan](https://github.com/AndreaCicca/SHA-implementation/actions/workflows/compilation.yaml/badge.svg)](https://github.com/AndreaCicca/SHA-implementation/actions/workflows/compilation.yaml)
+[![Run Tests](https://github.com/AndreaCicca/SHA-implementation/actions/workflows/test.yaml/badge.svg)](https://github.com/AndreaCicca/SHA-implementation/actions/workflows/test.yaml)
 
 Corso di Crittografia presso Unipr.
 
@@ -42,3 +43,32 @@ cmake --build build
 
 > [!NOTE]
 > Per non copia e incollare i singoli comandi si può usare lo script src/compile.sh
+
+## Esecuzione dei test
+
+Dopo aver compilato il progetto, è possibile eseguire i test unitari:
+
+### Eseguire tutti i test
+
+```bash
+cd src && ./run_all_ut.sh
+```
+
+### Eseguire i test manualmente
+
+```bash
+cd src && ./build/Release/ut_sha_functions
+```
+
+### Eseguire i test con output XML (per CI/CD)
+
+```bash
+cd src && ./build/Release/ut_sha_functions --gtest_output=xml:test-results.xml
+```
+
+I test verificano la correttezza dell'implementazione SHA-1 e SHA-256 confrontandola con la libreria OpenSSL, includendo:
+- Test con stringhe vuote, corte, lunghe e molto lunghe
+- Test con caratteri speciali e non-ASCII
+- Test di determinismo
+- Test dell'effetto valanga (avalanche effect)
+- Test di performance

src/run_all_ut.sh

@@ -5,9 +5,32 @@ set -e
 # Nella cartella ./build avviare tutti gli eseguibili che iniziano con ut_
 
 BUILD_DIR="build"
+BUILD_TYPE="${1:-Release}"  # Default to Release if not specified
 
-if [ -d "$BUILD_DIR" ]; then
-    for file in "$BUILD_DIR"/ut_*; do
-        ./"$file"
-    done
-fi
+# Cerca gli eseguibili di test nelle diverse possibili locazioni
+TEST_LOCATIONS=(
+    "$BUILD_DIR/$BUILD_TYPE"
+    "$BUILD_DIR"
+)
+
+echo "Searching for test executables (build type: $BUILD_TYPE)..."
+
+TESTS_FOUND=0
+for location in "${TEST_LOCATIONS[@]}"; do
+    if [ -d "$location" ]; then
+        for file in "$location"/ut_*; do
+            if [ -x "$file" ]; then
+                echo "Running test: $file"
+                "$file"
+                TESTS_FOUND=$((TESTS_FOUND + 1))
+            fi
+        done
+    fi
+done
+
+if [ $TESTS_FOUND -eq 0 ]; then
+    echo "No test executables found. Please build the project first."
+    exit 1
+fi
+
+echo "All tests completed successfully! ($TESTS_FOUND test suite(s) executed)"