CI: Run tests on both Linux and macOS

.github/workflows/unittests.yml

@@ -4,10 +4,11 @@ on: [push, pull_request]
 
 jobs:
   build:
-
+    name: python ${{ matrix.python-version }} on ${{ matrix.os }}
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.os }}
     strategy:
       matrix:
+        os: [macos-latest, ubuntu-latest]
         python-version: ["3.7", "3.8", "3.9", "3.10"]
 
     steps:
@@ -27,7 +28,6 @@ jobs:
       - name: Setup joinmarket + virtualenv
         if: steps.cache-venv.outputs.cache-hit != 'true'
         run: |
-          sudo apt update
           ./install.sh --develop --with-qt
           ./jmvenv/bin/python -m pip install --upgrade pip
           ./jmvenv/bin/pip install -r requirements/base.txt

test/testrunner/install_bitcoind.sh

@@ -4,6 +4,15 @@ set -ev
 
 export BITCOIND_VERSION=0.19.1
 
+if [[ "$(uname)" == "Linux" ]]; then
+    platform="x86_64-linux-gnu"
+elif [[ "$(uname)" == "Darwin" ]]; then
+    platform="osx64"
+else
+    echo "Unsupported platform: $(uname)"
+    exit 1
+fi
+
 if sudo cp ~/bitcoin/bitcoin-$BITCOIND_VERSION/bin/bitcoind /usr/local/bin/bitcoind
 then
     echo "found cached bitcoind"
@@ -11,11 +20,9 @@ then
 else
     mkdir -p ~/bitcoin && \
     pushd ~/bitcoin && \
-        wget https://bitcoin.org/bin/bitcoin-core-$BITCOIND_VERSION/bitcoin-$BITCOIND_VERSION-x86_64-linux-gnu.tar.gz && \
+    wget https://bitcoincore.org/bin/bitcoin-core-$BITCOIND_VERSION/bitcoin-$BITCOIND_VERSION-$platform.tar.gz && \
-        tar xvfz bitcoin-$BITCOIND_VERSION-x86_64-linux-gnu.tar.gz && \
+    tar xvfz bitcoin-$BITCOIND_VERSION-$platform.tar.gz && \
     sudo cp ./bitcoin-$BITCOIND_VERSION/bin/bitcoind /usr/local/bin/bitcoind && \
     sudo cp ./bitcoin-$BITCOIND_VERSION/bin/bitcoin-cli /usr/local/bin/bitcoin-cli && \
     popd
 fi
-
-