pytest: add tests for pip and poetry installed virtual envs

Also test checkout of a git tag on installation.

tests/test_reckless.py

@@ -61,8 +61,15 @@ def canned_github_server(directory):
     repo_initialization = (f'cp -r {plugins_path}/* .;'
                            'git add --all;'
                            'git commit -m "initial commit - autogenerated by test_reckless.py";')
+    tag_and_update = ('git tag v1;'
+                      "sed -i 's/v1/v2/g' testplugpass/testplugpass.py;"
+                      'git add testplugpass/testplugpass.py;'
+                      'git commit -m "update to v2";'
+                      'git tag v2;')
     subprocess.check_output([repo_initialization], env=my_env, shell=True,
                             cwd=repo_dir)
+    subprocess.check_output([tag_and_update], env=my_env,
+                            shell=True, cwd=repo_dir)
     del my_env['HOME']
     del my_env['GIT_DIR']
     del my_env['GIT_WORK_TREE']
@@ -191,6 +198,25 @@ def test_install(node_factory):
     assert os.path.exists(plugin_path)
 
 
+@unittest.skipIf(VALGRIND, "virtual environment triggers memleak detection")
+def test_poetry_install(node_factory):
+    """test search, git clone, and installation to folder."""
+    n = get_reckless_node(node_factory)
+    r = reckless([f"--network={NETWORK}", "-v", "install", "testplugpyproj"], dir=n.lightning_dir)
+    assert r.returncode == 0
+    assert 'dependencies installed successfully' in r.stdout
+    assert 'plugin installed:' in r.stdout
+    assert 'testplugpyproj enabled' in r.stdout
+    check_stderr(r.stderr)
+    plugin_path = Path(n.lightning_dir) / 'reckless/testplugpyproj'
+    print(plugin_path)
+    assert os.path.exists(plugin_path)
+    n.start()
+    print(n.rpc.testmethod())
+    assert n.daemon.is_in_log(r'plugin-manager: started\([0-9].*\) /tmp/ltests-[a-z0-9_].*/test_poetry_install_1/lightning-1/reckless/testplugpyproj/testplugpyproj.py')
+    assert n.rpc.testmethod() == 'I live.'
+
+
 @unittest.skipIf(VALGRIND, "virtual environment triggers memleak detection")
 def test_local_dir_install(node_factory):
     """Test search and install from local directory source."""
@@ -236,4 +262,42 @@ def test_disable_enable(node_factory):
                    'active': True, 'dynamic': True}
     time.sleep(1)
     print(n.rpc.plugin_list()['plugins'])
-    assert(test_plugin in n.rpc.plugin_list()['plugins'])
+    assert test_plugin in n.rpc.plugin_list()['plugins']
+
+
+@unittest.skipIf(VALGRIND, "virtual environment triggers memleak detection")
+def test_tag_install(node_factory):
+    "install a plugin from a specific commit hash or tag"
+    node = get_reckless_node(node_factory)
+    node.start()
+    r = reckless([f"--network={NETWORK}", "-v", "install", "testPlugPass"],
+                 dir=node.lightning_dir)
+    assert r.returncode == 0
+    metadata = node.lightning_dir / "reckless/testplugpass/.metadata"
+    with open(metadata, "r") as md:
+        header = ''
+        for line in md.readlines():
+            line = line.strip()
+            if header == 'requested commit':
+                assert line == 'None'
+            header = line
+    # should install v2 (latest) without specifying
+    version = node.rpc.gettestplugversion()
+    assert version == 'v2'
+    r = reckless([f"--network={NETWORK}", "-v", "uninstall", "testplugpass"],
+                 dir=node.lightning_dir)
+    r = reckless([f"--network={NETWORK}", "-v", "install", "testplugpass@v1"],
+                 dir=node.lightning_dir)
+    assert r.returncode == 0
+    # v1 should now be checked out.
+    version = node.rpc.gettestplugversion()
+    assert version == 'v1'
+    installed_path = Path(node.lightning_dir) / 'reckless/testplugpass'
+    assert installed_path.is_dir()
+    with open(metadata, "r") as md:
+        header = ''
+        for line in md.readlines():
+            line = line.strip()
+            if header == 'requested commit':
+                assert line == 'v1'
+            header = line