Add testcase for failing network config

Signed-off-by: Bas Zoetekouw <bas.zoetekouw@surf.nl>

tests/nets_test_ip/docker-compose.yml

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+version: "3"
+networks:
+    shared-network:
+        driver: bridge
+        ipam:
+            config:
+              - subnet: "172.19.1.0/24"
+    internal-network:
+        driver: bridge
+        ipam:
+            config:
+              - subnet: "172.19.2.0/24"
+
+services:
+    web1:
+        image: busybox
+        hostname: web1
+        command: ["/bin/busybox", "httpd", "-f", "-h", "/var/www/html", "-p", "8001"]
+        working_dir: /var/www/html
+        networks:
+            shared-network:
+                ipv4_address: "172.19.1.10"
+            internal-network:
+                ipv4_address: "172.19.2.10"
+        volumes:
+            - ./test1.txt:/var/www/html/index.txt:ro,z
+    web2:
+        image: busybox
+        hostname: web2
+        command: ["/bin/busybox", "httpd", "-f", "-h", "/var/www/html", "-p", "8001"]
+        working_dir: /var/www/html
+        mac_address: "02:01:01:00:02:02"
+        networks:
+            internal-network:
+                ipv4_address: "172.19.2.11"
+        volumes:
+          - ./test2.txt:/var/www/html/index.txt:ro,z
+
+    web3:
+        image: busybox
+        hostname: web2
+        command: ["/bin/busybox", "httpd", "-f", "-h", "/var/www/html", "-p", "8001"]
+        working_dir: /var/www/html
+        networks:
+            internal-network:
+        volumes:
+          - ./test3.txt:/var/www/html/index.txt:ro,z
+
+    web4:
+        image: busybox
+        hostname: web2
+        command: ["/bin/busybox", "httpd", "-f", "-h", "/var/www/html", "-p", "8001"]
+        working_dir: /var/www/html
+        networks:
+            internal-network:
+            shared-network:
+                ipv4_address: "172.19.1.13"
+        volumes:
+          - ./test4.txt:/var/www/html/index.txt:ro,z

tests/nets_test_ip/test1.txt

@@ -0,0 +1 @@
+test1

tests/nets_test_ip/test2.txt

@@ -0,0 +1 @@
+test2

tests/nets_test_ip/test3.txt

@@ -0,0 +1 @@
+test3

tests/nets_test_ip/test4.txt

@@ -0,0 +1 @@
+test4

tests/test_podman_compose_networks.py

@@ -0,0 +1,112 @@
+# SPDX-License-Identifier: GPL-2.0
+
+"""
+test_podman_compose_networks.py
+
+Tests the podman networking parameters
+"""
+
+# pylint: disable=redefined-outer-name
+import os
+import unittest
+
+from .test_podman_compose import podman_compose_path
+from .test_podman_compose import test_path
+from .test_utils import RunSubprocessMixin
+
+
+class TestPodmanComposeNetwork(RunSubprocessMixin, unittest.TestCase):
+    @staticmethod
+    def compose_file():
+        """Returns the path to the compose file used for this test module"""
+        return os.path.join(test_path(), "nets_test_ip", "docker-compose.yml")
+
+    def teardown(self):
+        """
+        Ensures that the services within the "profile compose file" are removed between
+        each test case.
+        """
+        # run the test case
+        yield
+
+        down_cmd = [
+            "coverage",
+            "run",
+            podman_compose_path(),
+            "-f",
+            self.compose_file(),
+            "kill",
+            "-a",
+        ]
+        self.run_subprocess(down_cmd)
+
+    def test_networks(self):
+        up_cmd = [
+            "coverage",
+            "run",
+            podman_compose_path(),
+            "-f",
+            self.compose_file(),
+            "up",
+            "-d",
+            "--force-recreate",
+        ]
+
+        self.run_subprocess_assert_returncode(up_cmd)
+
+        check_cmd = [
+            podman_compose_path(),
+            "-f",
+            self.compose_file(),
+            "ps",
+            "--format",
+            '"{{.Names}}"',
+        ]
+        out, _ = self.run_subprocess_assert_returncode(check_cmd)
+        self.assertIn(b"nets_test_ip_web1_1", out)
+        self.assertIn(b"nets_test_ip_web2_1", out)
+
+        expected_wget = {
+            "172.19.1.10": "test1",
+            "172.19.2.10": "test1",
+            "172.19.2.11": "test2",
+            "web3": "test3",
+            "172.19.1.13": "test4",
+        }
+
+        for service in ("web1", "web2"):
+            for ip, expect in expected_wget.items():
+                wget_cmd = [
+                    podman_compose_path(),
+                    "-f",
+                    self.compose_file(),
+                    "exec",
+                    service,
+                    "wget",
+                    "-q",
+                    "-O-",
+                    f"http://{ip}:8001/index.txt",
+                ]
+                out, _ = self.run_subprocess_assert_returncode(wget_cmd)
+                self.assertEqual(f"{expect}\r\n", out.decode('utf-8'))
+
+        expected_macip = {
+            "web1": {"eth0": ["172.19.1.10"], "eth1": ["172.19.2.10"]},
+            "web2": {"eth0": ["172.19.2.11"]},
+        }
+
+        for service, interfaces in expected_macip.items():
+            ip_cmd = [
+                podman_compose_path(),
+                "-f",
+                self.compose_file(),
+                "exec",
+                service,
+                "ip",
+                "addr",
+                "show",
+            ]
+            out, _ = self.run_subprocess_assert_returncode(ip_cmd)
+            for interface, values in interfaces.items():
+                ip = values[0]
+                self.assertIn(f"inet {ip}/", out.decode('utf-8'))