add zeromq tests

zeromq.yaml

@@ -1,4 +1,3 @@
-# Generated from https://git.alpinelinux.org/aports/plain/main/zeromq/APKBUILD
 package:
   name: zeromq
   version: 4.3.5
@@ -55,6 +54,34 @@ subpackages:
       runtime:
         - zeromq
     description: zeromq dev
+    test:
+      environment:
+        contents:
+          packages:
+            - gcc
+            - glibc-dev
+            - zeromq-dev
+            - pkgconf
+            - libsodium-dev
+      pipeline:
+        - runs: |
+            cat << 'EOF' > test_zeromq.c
+            #include <assert.h>
+            #include <zmq.h>
+
+            int main()
+            {
+              zmq_msg_t query;
+              assert(0 == zmq_msg_init_size(&query, 1));
+              return 0;
+            }
+            EOF
+            gcc -o test_zeromq test_zeromq.c -lzmq
+            ./test_zeromq
+        - runs: |
+            # Ensure pkg-config can find libzmq
+            pkg-config libzmq --cflags
+            pkg-config libzmq --libs
 
   - name: zeromq-doc
     pipeline: