Add integration testing

Tests subprocess-tee when used from inside
molecule.

.yamllint

@@ -2,9 +2,6 @@
 # Based on ansible-lint config
 extends: default
 
-ignore: |
-  *{{cookiecutter**
-
 rules:
   braces:
     max-spaces-inside: 1

molecule/default/converge.yml

@@ -0,0 +1,8 @@
+---
+- name: Converge
+  hosts: localhost
+  gather_facts: false
+  tasks:
+    - name: "Test"
+      debug:
+        msg: "Past glories are poor feeding."

molecule/default/molecule.yml

@@ -0,0 +1,11 @@
+---
+dependency:
+  name: galaxy
+driver:
+  name: delegated
+platforms:
+  - name: instance
+provisioner:
+  name: ansible
+verifier:
+  name: ansible

src/subprocess_tee/__init__.py

@@ -74,8 +74,11 @@ async def _stream_subprocess(args: str, **kwargs: Any) -> CompletedProcess:
         def tee_func(line: bytes, sink: List[str], pipe: Optional[Any]) -> None:
             line_str = line.decode("utf-8").rstrip()
             sink.append(line_str)
-            if not kwargs.get("quiet", False) and hasattr(pipe, "write"):
-                print(line_str, file=pipe)
+            if not kwargs.get("quiet", False):
+                if pipe and hasattr(pipe, "write"):
+                    print(line_str, file=pipe)
+                else:
+                    print(line_str)
 
         loop = asyncio.get_event_loop()
         tasks = []

src/subprocess_tee/test/test_func.py

@@ -0,0 +1,14 @@
+"""Functional tests for subprocess-tee library."""
+import subprocess
+
+
+def test_molecule() -> None:
+    """Ensures molecule does display output of its subprocesses."""
+    result = subprocess.run(
+        ["molecule", "test"],
+        capture_output=True,
+        universal_newlines=True,
+        check=False,
+    )
+    assert result.returncode == 0
+    assert "Past glories are poor feeding." in result.stdout

test-requirements.in

@@ -1,5 +1,7 @@
+ansible-core
 enrich>=1.2.5
 mock>=3.0.5
+molecule
 pytest-cov>=2.7.1
 pytest-plus
 pytest-xdist>=1.29.0

tox.ini

@@ -3,7 +3,7 @@ minversion = 3.9.0
 envlist =
     lint
     packaging
-    py{36,37,38,39}
+    py
 
 isolated_build = True
 
@@ -26,7 +26,7 @@ passenv =
     TERM
 setenv =
     PIP_DISABLE_VERSION_CHECK=1
-    PYTEST_REQPASS=15
+    PYTEST_REQPASS=16
     PYTHONDONTWRITEBYTECODE=1
     PYTHONUNBUFFERED=1
 commands =