add interop tests to CI

.github/workflows/main.yml

@@ -40,6 +40,30 @@ jobs:
         file: _build/test/covertool/grpcbox.covertool.xml
         env_vars: OTP_VERSION
 
+    - name: Setup Go 1.21.4
+      uses: actions/setup-go@v4
+      with:
+        # Semantic version range syntax or exact version of Go
+        go-version: '1.21.4'
+
+    - uses: actions/checkout@v4
+      with:
+        repository: 'grpc/grpc-go'
+        path: 'grpc-go'
+
+    - name: Install grpc-go interop client
+      run: |
+        cd grpc-go
+        go build -o ./go-grpc-interop-client ./interop/client
+
+    - name: Run interop tests
+      run: |
+        rebar3 as interop compile
+        erl -detached -config interop/config/sys.config -pa `rebar3 as interop path` -pa _build/interop/lib/grpcbox/interop/ -s application ensure_all_started grpcbox
+
+        PATH=grpc-go/:$PATH interop/run_server_tests.sh
+
+
   dialyzer:
     name: Dialyze on OTP ${{ matrix.otp_version }} and ${{ matrix.os }}
     runs-on: ${{ matrix.os }}

interop/run_server_tests.sh

@@ -30,7 +30,7 @@ tests=(
 
 for test in "${tests[@]}"; do
     echo -n "Running ${test}... "
-    $GOPATH/bin/go-grpc-interop-client -use_tls=$TLS -test_case=$test -server_port=$PORT
+    go-grpc-interop-client -use_tls=$TLS -test_case=$test -server_port=$PORT
     if [[ $? -ne 0 ]]; then
         echo "Failed!"
         exit 1