fix git actions build process for macOS and Windows

Author: djad04

.github/workflows/ci.yml

@@ -25,23 +25,25 @@ jobs:
       uses: jurplel/install-qt-action@v4
       with:
         version: ${{ matrix.qt-version }}
+        modules: 'qtbase qttools qtnetwork'
         cache: true
-        cache-key-prefix: install-qt-action
+        cache-key-prefix: install-qt-action-${{ matrix.os }}-${{ matrix.qt-version }}
+        setup-python: false
 
     - name: Configure CMake
       run: |
         cd tests
         cmake -B build -DCMAKE_BUILD_TYPE=Release
-        
+
     - name: Build tests
       run: |
         cd tests
         cmake --build build --config Release
-        
+
     - name: Run tests
       run: |
         cd tests
-        ctest --test-dir build --output-on-failure --timeout 300
+        ctest --test-dir build --output-on-failure --timeout 300 -C Release
         
     - name: Upload test results
       uses: actions/upload-artifact@v4
@@ -64,13 +66,15 @@ jobs:
       uses: jurplel/install-qt-action@v4
       with:
         version: '6.7.0'
+        modules: 'qtbase qttools qtnetwork'
         cache: true
-        cache-key-prefix: install-qt-action
+        cache-key-prefix: install-qt-action-ubuntu-6.7.0
+        setup-python: false
 
     - name: Install coverage tools
       run: |
         sudo apt-get update
-        sudo apt-get install -y gcov lcov
+        sudo apt-get install -y gcc lcov
         
     - name: Configure CMake with coverage
       run: |

diff_match_patch.cpp

@@ -52,7 +52,7 @@ QString Diff::strOperation(Operation op) {
 QString Diff::toString() const {
   QString prettyText = text;
   // Replace linebreaks with Pilcrow signs.
-  prettyText.replace('\n', L'\u00b6');
+  prettyText.replace('\n', QChar(0x00b6));
   return QString("Diff(") + strOperation(operation) + QString(",\"")
       + prettyText + QString("\")");
 }

manual-testing/diff_match_patch.cpp

@@ -52,7 +52,7 @@ QString Diff::strOperation(Operation op) {
 QString Diff::toString() const {
   QString prettyText = text;
   // Replace linebreaks with Pilcrow signs.
-  prettyText.replace('\n', L'\u00b6');
+  prettyText.replace('\n', QChar(0x00b6));
   return QString("Diff(") + strOperation(operation) + QString(",\"")
       + prettyText + QString("\")");
 }