Adding Test that the changes can build Image from build context of extended compose-file

Signed-off-by: kjunker <junker.kurt@googlemail.com>

tests/test_podman_compose.py

@@ -0,0 +1,62 @@
+from pathlib import Path
+import pytest
+import podman_compose
+import subprocess
+
+
+def capture(command):
+    proc = subprocess.Popen(
+        command,
+        stdout=subprocess.PIPE,
+        stderr=subprocess.PIPE,
+    )
+    out, err = proc.communicate()
+    return out, err, proc.returncode
+
+def test_podman_compose_extends_w_file_subdir():
+    """
+    Test that podman-compose can execute podman-compose -f <file> up with extended File which
+    includes a build context
+    :return:
+    """
+    main_path = Path(__file__).parent.parent
+
+    command_up = [
+        "python3",
+        str(main_path.joinpath("podman_compose.py")),
+        "-f",
+        str(main_path.joinpath("tests", "extends_w_file_subdir", "docker-compose.yml")),
+        "up",
+        "-d"
+    ]
+
+    command_check_container = [
+        "podman",
+        "container",
+        "ps",
+        "--all",
+        "--format",
+        "\"{{.Image}}\""
+    ]
+
+    command_down = [
+        "podman",
+        "rmi",
+        "--force",
+        "localhost/subdir_test:me",
+        "docker.io/library/bash"
+    ]
+
+    out, err, returncode = capture(command_up)
+    assert 0 == returncode
+    # check container was created and exists
+    out, err, returncode = capture(command_check_container)
+    assert 0 == returncode
+    assert out == b'"localhost/subdir_test:me"\n'
+    out, err, returncode = capture(command_down)
+    # cleanup test image(tags)
+    assert 0 == returncode
+    # check container did not exists anymore
+    out, err, returncode = capture(command_check_container)
+    assert 0 == returncode
+    assert out == b''