11 set up continuous integration pipeline (#12)

Set-up minimal continuous integration pipeline.

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Co-authored-by: Kuhn <kuhn_aa@ubuntu-server.intra.dlr.de>

Author: CodingAllan

.github/actions/build/action.yml

@@ -0,0 +1,30 @@
+name: "Linux Build"
+runs:
+  using: "composite"
+  steps:
+    - name: Install dependencies
+      shell: bash
+      run: |
+        sudo apt-get -qq update
+        sudo apt-get -qq install gcc-11
+        sudo apt-get -qq -y install g++-11
+    - name: Build
+      shell: 
+      # ensure that the installed compiler version is used
+      run: |
+        export CC=/usr/bin/gcc-11
+        export CXX=/usr/bin/g++-11
+        mkdir build
+        cmake -S . -B ./build/
+        cd build
+        make -j4
+    - name: create build dir archive
+      shell: bash
+      run: |
+        tar -czf build.tar.gz build
+    - name: Upload build dir archive
+      uses: actions/upload-artifact@v3
+      with:
+        name: build-cpp-linux-gmgpolar
+        path: build.tar.gz
+        retention-days: 1

.github/actions/test/action.yml

@@ -0,0 +1,31 @@
+name: "Test on Linux"
+description: "Run the unit tests on Linux"
+inputs:
+  build-artifact:
+    description: "Name of the build artifact that contains the unit test"
+    required: true
+
+runs:
+  using: "composite"
+  steps:
+    - name: Download build test directory
+      uses: actions/download-artifact@v3
+      with:
+        name: ${{ inputs.build-artifact }}
+    - name: extract build archive
+      shell: bash
+      run: |
+        tar -xzf build.tar.gz
+    - name: run unit test
+      shell: bash
+      run: |
+        cd build/tests
+        sudo chmod a+x gmgpolar_tests
+        ./gmgpolar_tests --gtest_output="xml:testreport.xml"
+    - name: Upload test report
+      uses: actions/upload-artifact@v3
+      with:
+        name: test-report
+        path: build/tests/testreport.xml
+        if-no-files-found: error
+        retention-days: 3

.github/workflows/main.yml

@@ -0,0 +1,27 @@
+name: GMGPolarCI
+
+on :
+  schedule:
+    - cron: "40 2 * * *"
+  push:
+    branches:
+      - "main"
+  pull_request:
+    types: [opened, reopened, synchronize, ready_for_review]
+
+jobs:
+  install-and-build:
+    if: github.event.pull_request.draft == false
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: ./.github/actions/build
+      
+  run-unit-test:
+    needs: install-and-build
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: ./.github/actions/test
+        with:
+          build-artifact: build-cpp-linux-gmgpolar

tests/comparetest.cpp

@@ -55,11 +55,13 @@ TEST_F(Test_Parameters, DOF_on_finest_grid)
 {
     gmgpolar gmgtest;
     gmgtest.create_grid_polar(); //only the finest grid is now created
-    int finest_nodes = gmgtest.v_level[0]->nr * gmgtest.v_level[0]->ntheta;
+    int nodes_r      = gmgtest.v_level[0]->nr;
+    int nodes_theta  = gmgtest.v_level[0]->ntheta;
+    int finest_nodes = nodes_r * nodes_theta;
     EXPECT_EQ(gmgtest.v_level.size(), 1);
     EXPECT_EQ(finest_nodes, input[initparam]);
-    EXPECT_EQ(gmgtest.v_level[0]->nr, input[initparam + 1]);
-    EXPECT_EQ(gmgtest.v_level[0]->ntheta, input[initparam + 2]);
+    EXPECT_EQ(nodes_r, input[initparam + 1]);
+    EXPECT_EQ(nodes_theta, input[initparam + 2]);
 }
 
 TEST_F(Test_Parameters, Test_multigrid_Iterations)