Extract compose_run args parsing and add unit tests

Signed-off-by: Ari Pollak <ajp@aripollak.com>

podman_compose.py

@@ -2455,6 +2455,18 @@ async def compose_run(compose, args):
     )
     await compose.commands["build"](compose, build_args)
 
+    compose_run_update_container_from_args(compose, cnt, args)
+    # run podman
+    podman_args = await container_to_args(compose, cnt, args.detach)
+    if not args.detach:
+        podman_args.insert(1, "-i")
+        if args.rm:
+            podman_args.insert(1, "--rm")
+    p = await compose.podman.run([], "run", podman_args)
+    sys.exit(p)
+
+
+def compose_run_update_container_from_args(compose, cnt, args):
     # adjust one-off container options
     name0 = "{}_{}_tmp{}".format(compose.project_name, args.service, random.randrange(0, 65536))
     cnt["name"] = args.name or name0
@@ -2486,14 +2498,6 @@ async def compose_run(compose, args):
     # can't restart and --rm
     if args.rm and "restart" in cnt:
         del cnt["restart"]
-    # run podman
-    podman_args = await container_to_args(compose, cnt, args.detach)
-    if not args.detach:
-        podman_args.insert(1, "-i")
-        if args.rm:
-            podman_args.insert(1, "--rm")
-    p = await compose.podman.run([], "run", podman_args)
-    sys.exit(p)
 
 
 @cmd_run(podman_compose, "exec", "execute a command in a running container")

pytests/test_compose_run_update_container_from_args.py

@@ -0,0 +1,60 @@
+# SPDX-License-Identifier: GPL-2.0
+
+import argparse
+import unittest
+
+from podman_compose import PodmanCompose
+from podman_compose import compose_run_update_container_from_args
+
+
+class TestRunArgs(unittest.TestCase):
+    def test_minimal(self):
+        cnt = get_minimal_container()
+        compose = get_minimal_compose()
+        args = get_minimal_args()
+
+        compose_run_update_container_from_args(compose, cnt, args)
+
+        expected_cnt = {"name": "default_name", "tty": True}
+        self.assertEqual(cnt, expected_cnt)
+
+    def test_additional_env_value_equals(self):
+        cnt = get_minimal_container()
+        compose = get_minimal_compose()
+        args = get_minimal_args()
+        args.env = ["key=valuepart1=valuepart2"]
+
+        compose_run_update_container_from_args(compose, cnt, args)
+
+        expected_cnt = {
+            "environment": {
+                "key": "valuepart1=valuepart2",
+            },
+            "name": "default_name",
+            "tty": True,
+        }
+        self.assertEqual(cnt, expected_cnt)
+
+
+def get_minimal_container():
+    return {}
+
+
+def get_minimal_compose():
+    return PodmanCompose()
+
+
+def get_minimal_args():
+    return argparse.Namespace(
+        T=None,
+        cnt_command=None,
+        entrypoint=None,
+        env=None,
+        name="default_name",
+        rm=None,
+        service=None,
+        service_ports=None,
+        user=None,
+        volume=None,
+        workdir=None,
+    )