diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index e7c429ca..11639a3a 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -12,71 +12,83 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v1
-    - name: Make scripts executable
-      run: sudo chmod -R +x ./.github/workflows/test/*.sh
-    - name: Install
-      run: ./.github/workflows/test/install_arduino.sh
-    - name: Build
-      run: ./.github/workflows/test/script_arduino.sh
+      - uses: actions/checkout@v1
+      - name: Make scripts executable
+        run: sudo chmod -R +x ./.github/workflows/test/*.sh
+      - name: Install
+        run: ./.github/workflows/test/install_arduino.sh
+      - name: Build
+        run: ./.github/workflows/test/script_arduino.sh
 
   linux-default:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v1
-    - name: Make scripts executable
-      run: sudo chmod -R +x ./.github/workflows/test/*.sh
-    - name: Install
-      run: ./.github/workflows/test/install_platform_io.sh
-    - name: Empty Git Submodule Folders
-      run: |
-        rm -rf ./src/lib/{ArduinoJson/*,BIP66/*,uECC/*}
-        rm -rf ./test/lib/googletest/*
-    - name: Build
-      run: ./.github/workflows/test/script_platform_io.sh
+      - uses: actions/checkout@v1
+      - name: Make scripts executable
+        run: sudo chmod -R +x ./.github/workflows/test/*.sh
+      - name: Install
+        run: ./.github/workflows/test/install_platform_io.sh
+      - name: Empty Git Submodule Folders
+        run: |
+          rm -rf ./src/lib/{ArduinoJson/*,BIP66/*,uECC/*}
+          rm -rf ./test/lib/googletest/*
+      - name: Build
+        run: ./.github/workflows/test/script_platform_io.sh
 
   linux-gcc7:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v1
-    - name: Install dependencies
-      run: |
-        sudo apt-add-repository -y ppa:ubuntu-toolchain-r/test
-        sudo apt-get update
-        sudo apt-get -y install g++-7 gcc-7 lcov
-        sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-7 60 --slave /usr/bin/g++ g++ /usr/bin/g++-7
-        sudo update-alternatives --config gcc
-    - name: Make scripts executable
-      run: sudo chmod -R +x ./.github/workflows/test/*.sh
-    - name: Build
-      run: ./.github/workflows/test/script_desktop.sh
-    - name: Codecov upload
-      run: bash <(curl -s https://codecov.io/bash) -t ${{ secrets.CODECOV_TOKEN }}
+      - uses: actions/checkout@v1
+      - name: Install dependencies
+        run: |
+          sudo apt-add-repository -y ppa:ubuntu-toolchain-r/test
+          sudo apt-get update
+          sudo apt-get -y install g++-7 gcc-7 lcov
+          sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-7 60 --slave /usr/bin/g++ g++ /usr/bin/g++-7
+          sudo update-alternatives --config gcc
+      - name: Make scripts executable
+        run: sudo chmod -R +x ./.github/workflows/test/*.sh
+      - name: Build
+        run: ./.github/workflows/test/script_desktop.sh
+        env:
+          CC: gcc-7
+          CXX: g++-7
+      - name: Codecov upload
+        run: bash <(curl -s https://codecov.io/bash) -t ${{ secrets.CODECOV_TOKEN }}
 
   linux-clang-5:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v1
-    - name: Install dependencies
-      run: |
-        sudo apt-get update
-        sudo apt install liblldb-5.0-dev python-lldb-5.0 lcov
-        sudo apt install clang-5.0 clang-tidy-5.0 clang-format-5.0 clang-5.0-doc libclang-common-5.0-dev libclang-5.0-dev libclang1-5.0 libllvm5.0 lldb-5.0 llvm-5.0 llvm-5.0-dev
-        sudo update-alternatives --install /usr/bin/cc cc /usr/bin/clang-5.0 60
-        sudo update-alternatives --install /usr/bin/cc cc /usr/bin/gcc 50
-        sudo update-alternatives --install /usr/bin/c++ c++ /usr/bin/clang++-5.0 60
-        sudo update-alternatives --install /usr/bin/c++ c++ /usr/bin/g++ 50
-    - name: Make scripts executable
-      run: sudo chmod -R +x ./.github/workflows/test/*.sh
-    - name: Build
-      run: ./.github/workflows/test/script_desktop.sh
-    - name: Clang Tidy
-      run: ./.github/workflows/test/clang_tidy.sh
-    - name: Clang Format
-      run: ./.github/workflows/test/clang_format.sh
+      - uses: actions/checkout@v1
+      - name: Install dependencies
+        run: |
+          sudo apt-get update
+          sudo apt install liblldb-5.0-dev python-lldb-5.0 lcov
+          sudo apt install clang-5.0 clang-tidy-5.0 clang-format-5.0 clang-5.0-doc libclang-common-5.0-dev libclang-5.0-dev libclang1-5.0 libllvm5.0 lldb-5.0 llvm-5.0 llvm-5.0-dev
+          sudo update-alternatives --install /usr/bin/cc cc /usr/bin/clang-5.0 60
+          sudo update-alternatives --install /usr/bin/cc cc /usr/bin/gcc 50
+          sudo update-alternatives --install /usr/bin/c++ c++ /usr/bin/clang++-5.0 60
+          sudo update-alternatives --install /usr/bin/c++ c++ /usr/bin/g++ 50
+      - name: Make scripts executable
+        run: sudo chmod -R +x ./.github/workflows/test/*.sh
+      - name: Build
+        run: ./.github/workflows/test/script_desktop.sh
+        env:
+          CC: clang-5.0
+          CXX: clang++-5.0
+      - name: Clang Tidy
+        run: ./.github/workflows/test/clang_tidy.sh
+        env:
+          CC: clang-5.0
+          CXX: clang++-5.0
+      - name: Clang Format
+        run: ./.github/workflows/test/clang_format.sh
+        env:
+          CC: clang-5.0
+          CXX: clang++-5.0
 
   macOS:
     runs-on: macOS-latest