fix some test-ability problems and add tests for 'tahoe admin add-grid-manager-cert'

src/allmydata/scripts/runner.py

@@ -115,8 +115,11 @@ def parse_options(argv, config=None):
     config.parseOptions(argv) # may raise usage.error
     return config
 
-def parse_or_exit_with_explanation(argv, stdout=sys.stdout):
+def parse_or_exit_with_explanation(argv, stdout=sys.stdout, stderr=sys.stderr, stdin=sys.stdin):
     config = Options()
+    config.stdout = stdout
+    config.stdin = stdin
+    config.stderr = stderr
     try:
         parse_options(argv, config=config)
     except usage.error as e:
@@ -141,6 +144,7 @@ def dispatch(config,
     so.stdout = stdout
     so.stderr = stderr
     so.stdin = stdin
+    config.stdin = stdin
 
     if command in create_dispatch:
         f = create_dispatch[command]

src/allmydata/test/cli/test_grid_manager.py

@@ -2,13 +2,27 @@
 import os
 import json
 
-from ..common import SyncTestCase
+from ..common import (
+    SyncTestCase,
+    AsyncTestCase,
+)
 from allmydata.cli.grid_manager import (
     grid_manager,
 )
 
 import click.testing
 
+# these imports support the tests for `tahoe *` subcommands
+from ..common_util import (
+    run_cli,
+)
+from twisted.internet.defer import (
+    inlineCallbacks,
+)
+from twisted.python.filepath import (
+    FilePath,
+)
+
 
 class GridManagerCommandLine(SyncTestCase):
     """
@@ -77,3 +91,77 @@ class GridManagerCommandLine(SyncTestCase):
 
             result = self.runner.invoke(grid_manager, ["--config", "foo", "list"])
             self.assertEqual(result.output.strip(), "")
+
+
+# note: CLITestMixin can't function without also GridTestMixin ... :/
+class TahoeAddGridManagerCert(AsyncTestCase):
+    """
+    Test `tahoe admin add-grid-manager-cert` subcommand
+    """
+
+    @inlineCallbacks
+    def test_help(self):
+        """
+        some kind of help is printed
+        """
+        code, out, err = yield run_cli("admin", "add-grid-manager-cert")
+        self.assertEqual(err, "")
+        self.assertNotEqual(0, code)
+
+    @inlineCallbacks
+    def test_no_name(self):
+        """
+        error to miss --name option
+        """
+        code, out, err = yield run_cli(
+            "admin", "add-grid-manager-cert", "--filename", "-",
+            stdin="the cert",
+        )
+        self.assertIn(
+            "Must provide --name",
+            out
+        )
+
+    @inlineCallbacks
+    def test_no_filename(self):
+        """
+        error to miss --name option
+        """
+        code, out, err = yield run_cli(
+            "admin", "add-grid-manager-cert", "--name", "foo",
+            stdin="the cert",
+        )
+        self.assertIn(
+            "Must provide --filename",
+            out
+        )
+
+    @inlineCallbacks
+    def test_add_one(self):
+        """
+        we can add a certificate
+        """
+        nodedir = self.mktemp()
+        fake_cert = """{"certificate": "", "signature": ""}"""
+
+        code, out, err = yield run_cli(
+            "--node-directory", nodedir,
+            "admin", "add-grid-manager-cert", "-f", "-", "--name", "foo",
+            stdin=fake_cert,
+            ignore_stderr=True,
+        )
+        nodepath = FilePath(nodedir)
+        with nodepath.child("tahoe.cfg").open("r") as f:
+            config_data = f.read()
+
+        self.assertIn("tahoe.cfg", nodepath.listdir())
+        self.assertIn(
+            "foo = foo.cert",
+            config_data,
+        )
+        self.assertIn("foo.cert", nodepath.listdir())
+        with nodepath.child("foo.cert").open("r") as f:
+            self.assertEqual(
+                json.load(f),
+                json.loads(fake_cert)
+            )

src/allmydata/test/common_util.py

@@ -40,14 +40,17 @@ def run_cli(verb, *args, **kwargs):
                  "arguments to do_cli must be strs -- convert using unicode_to_argv", args=args)
     nodeargs = kwargs.get("nodeargs", [])
     argv = nodeargs + [verb] + list(args)
-    stdin = kwargs.get("stdin", "")
+    stdin = StringIO(kwargs.get("stdin", ""))
     stdout = StringIO()
     stderr = StringIO()
     d = defer.succeed(argv)
-    d.addCallback(runner.parse_or_exit_with_explanation, stdout=stdout)
-    d.addCallback(runner.dispatch,
-                  stdin=StringIO(stdin),
-                  stdout=stdout, stderr=stderr)
+    d.addCallback(runner.parse_or_exit_with_explanation, stdout=stdout, stderr=stderr, stdin=stdin)
+    d.addCallback(
+        runner.dispatch,
+        stdin=stdin,
+        stdout=stdout,
+        stderr=stderr,
+    )
     def _done(rc):
         return 0, stdout.getvalue(), stderr.getvalue()
     def _err(f):