pytest: add blackbox tests for reckless

A canned lightningd/plugins is used to test against. This allows faster
and more deterministic outcomes.

Changelog-None

tests/test_reckless.py

@@ -0,0 +1,188 @@
+from fixtures import *  # noqa: F401,F403
+import subprocess
+from pathlib import PosixPath, Path
+import socket
+import pytest
+import os
+import shutil
+import time
+
+
+@pytest.fixture(autouse=True)
+def canned_github_server(directory):
+    global NETWORK
+    NETWORK = os.environ.get('TEST_NETWORK')
+    if NETWORK is None:
+        NETWORK = 'regtest'
+    FILE_PATH = Path(os.path.dirname(os.path.realpath(__file__)))
+    if os.environ.get('LIGHTNING_CLI') is None:
+        os.environ['LIGHTNING_CLI'] = str(FILE_PATH.parent / 'cli/lightning-cli')
+        print('LIGHTNING_CALL: ', os.environ.get('LIGHTNING_CLI'))
+    # Use socket to provision a random free port
+    sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+    sock.bind(('localhost', 0))
+    free_port = str(sock.getsockname()[1])
+    sock.close()
+    global my_env
+    my_env = os.environ.copy()
+    # This tells reckless to redirect to the canned server rather than github.
+    my_env['REDIR_GITHUB_API'] = f'http://127.0.0.1:{free_port}/api'
+    my_env['REDIR_GITHUB'] = directory
+    my_env['FLASK_RUN_PORT'] = free_port
+    my_env['FLASK_APP'] = str(FILE_PATH / 'rkls_github_canned_server')
+    server = subprocess.Popen(["python3", "-m", "flask", "run"],
+                              env=my_env)
+
+    # Generate test plugin repository to test reckless against.
+    repo_dir = os.path.join(directory, "lightningd")
+    os.mkdir(repo_dir, 0o777)
+    plugins_path = str(FILE_PATH / 'data/recklessrepo/lightningd')
+    # This lets us temporarily set .gitconfig user info in order to commit
+    my_env['HOME'] = directory
+    with open(os.path.join(directory, '.gitconfig'), 'w') as conf:
+        conf.write(("[user]\n"
+                    "\temail = reckless@example.com\n"
+                    "\tname = reckless CI\n"
+                    "\t[init]\n"
+                    "\tdefaultBranch = master"))
+
+    with open(os.path.join(directory, '.gitconfig'), 'r') as conf:
+        print(conf.readlines())
+
+    # Bare repository must be initialized prior to setting other git env vars
+    subprocess.check_output(['git', 'init', '--bare', 'plugins'], cwd=repo_dir,
+                            env=my_env)
+
+    my_env['GIT_DIR'] = os.path.join(repo_dir, 'plugins')
+    my_env['GIT_WORK_TREE'] = repo_dir
+    my_env['GIT_INDEX_FILE'] = os.path.join(repo_dir, 'scratch-index')
+    repo_initialization = (f'cp -r {plugins_path}/* .;'
+                           'git add --all;'
+                           'git commit -m "initial commit - autogenerated by test_reckless.py";')
+    subprocess.check_output([repo_initialization], env=my_env, shell=True,
+                            cwd=repo_dir)
+    del my_env['HOME']
+    del my_env['GIT_DIR']
+    del my_env['GIT_WORK_TREE']
+    del my_env['GIT_INDEX_FILE']
+    # We also need the github api data for the repo which will be served via http
+    shutil.copyfile(str(FILE_PATH / 'data/recklessrepo/rkls_api_lightningd_plugins.json'), os.path.join(directory, 'rkls_api_lightningd_plugins.json'))
+    yield
+    server.terminate()
+
+
+def reckless(cmds: list, dir: PosixPath = None,
+             autoconfirm=True, timeout: int = 15):
+    '''Call the reckless executable, optionally with a directory.'''
+    if dir is not None:
+        cmds.insert(0, "-l")
+        cmds.insert(1, str(dir))
+    cmds.insert(0, "tools/reckless")
+    r = subprocess.run(cmds, capture_output=True, encoding='utf-8', env=my_env,
+                       input='Y\n')
+    print(" ".join(r.args), "\n")
+    print("***RECKLESS STDOUT***")
+    for l in r.stdout.splitlines():
+        print(l)
+    print('\n')
+    print("***RECKLESS STDERR***")
+    for l in r.stderr.splitlines():
+        print(l)
+    print('\n')
+    return r
+
+
+def get_reckless_node(node_factory):
+    '''This may be unnecessary, but a preconfigured lightning dir
+    is useful for reckless testing.'''
+    node = node_factory.get_node(options={}, start=False)
+    return node
+
+
+def check_stderr(stderr):
+    def output_okay(out):
+        for warning in ['[notice]', 'npm WARN', 'npm notice']:
+            if out.startswith(warning):
+                return True
+        return False
+    for e in stderr.splitlines():
+        if len(e) < 1:
+            continue
+        # Don't err on verbosity from pip, npm
+        assert output_okay(e)
+
+
+def test_basic_help():
+    '''Validate that argparse provides basic help info.
+    This requires no config options passed to reckless.'''
+    r = reckless(["-h"])
+    assert r.returncode == 0
+    assert "positional arguments:" in r.stdout.splitlines()
+    assert "options:" in r.stdout.splitlines() or "optional arguments:" in r.stdout.splitlines()
+
+
+def test_contextual_help(node_factory):
+    n = get_reckless_node(node_factory)
+    for subcmd in ['install', 'uninstall', 'search',
+                   'enable', 'disable', 'source']:
+        r = reckless([subcmd, "-h"], dir=n.lightning_dir)
+        assert r.returncode == 0
+        assert "positional arguments:" in r.stdout.splitlines()
+
+
+def test_sources(node_factory):
+    """add additional sources and search through them"""
+    n = get_reckless_node(node_factory)
+    r = reckless(["source", "-h"], dir=n.lightning_dir)
+    assert r.returncode == 0
+
+
+def test_search(node_factory):
+    """add additional sources and search through them"""
+    n = get_reckless_node(node_factory)
+    r = reckless([f"--network={NETWORK}", "search", "testplugpass"], dir=n.lightning_dir)
+    assert r.returncode == 0
+    assert 'found testplugpass in repo: https://github.com/lightningd/plugins' in r.stdout
+
+
+def test_install(node_factory):
+    """test search, git clone, and installation to folder."""
+    n = get_reckless_node(node_factory)
+    r = reckless([f"--network={NETWORK}", "-v", "install", "testplugpass"], dir=n.lightning_dir)
+    assert r.returncode == 0
+    assert 'dependencies installed successfully' in r.stdout
+    assert 'plugin installed:' in r.stdout
+    assert 'testplugpass enabled' in r.stdout
+    check_stderr(r.stderr)
+    plugin_path = Path(n.lightning_dir) / 'reckless/testplugpass'
+    print(plugin_path)
+    assert os.path.exists(plugin_path)
+
+
+def test_disable_enable(node_factory):
+    """test search, git clone, and installation to folder."""
+    n = get_reckless_node(node_factory)
+    r = reckless([f"--network={NETWORK}", "-v", "install", "testplugpass"],
+                 dir=n.lightning_dir)
+    assert r.returncode == 0
+    assert 'dependencies installed successfully' in r.stdout
+    assert 'plugin installed:' in r.stdout
+    assert 'testplugpass enabled' in r.stdout
+    check_stderr(r.stderr)
+    plugin_path = Path(n.lightning_dir) / 'reckless/testplugpass'
+    print(plugin_path)
+    assert os.path.exists(plugin_path)
+    r = reckless([f"--network={NETWORK}", "-v", "disable", "testplugpass"],
+                 dir=n.lightning_dir)
+    assert r.returncode == 0
+    n.start()
+    # Should find it with or without the file extension
+    r = reckless([f"--network={NETWORK}", "-v", "enable", "testplugpass.py"],
+                 dir=n.lightning_dir)
+    assert r.returncode == 0
+    assert 'testplugpass.py enabled' in r.stdout
+    test_plugin = {'name': str(plugin_path / 'testplugpass.py'),
+                   'active': True, 'dynamic': True}
+    time.sleep(1)
+    print(n.rpc.plugin_list()['plugins'])
+    assert(test_plugin in n.rpc.plugin_list()['plugins'])