test examples/tests as independent CMake projects

Author: thilinarmtb

.github/workflows/build.yml

@@ -85,7 +85,9 @@ jobs:
       if: ${{ inputs.debug_enabled }}
 
     - name: Set OCCA install directory
-      run: echo "OCCA_INSTALL_DIR=${PWD}/install" >> ${GITHUB_ENV}
+      run: |
+        echo "OCCA_DIR=${PWD}/install" >> ${GITHUB_ENV}
+        echo "OCCA_INSTALL_DIR=${PWD}/install" >> ${GITHUB_ENV}
 
     - name: add oneAPI to apt
       if: ${{ matrix.useoneAPI }}
@@ -144,6 +146,18 @@ jobs:
       run: |
         cmake --build build --target install --parallel 16
 
+    - name: CMake build examples as an independent project
+      if: ${{ matrix.useCMake && !matrix.useoneAPI}}
+      run: |
+        cd examples
+        cmake -S . -B build
+
+    - name: CMake build tests as an independent project
+      if: ${{ matrix.useCMake && !matrix.useoneAPI}}
+      run: |
+        cd tests
+        cmake -S . -B build
+
     - name: CMake build and install
       if: ${{ matrix.useCMake && matrix.useoneAPI}}
       env: