clan-cli: write some unit tests

pkgs/clan-cli/clan.py

@@ -1,5 +1,6 @@
 # !/usr/bin/env python3
 import argparse
+import sys
 
 import argcomplete
 
@@ -16,4 +17,5 @@ def clan() -> None:
     clan_admin.make_parser(parser_admin)
     argcomplete.autocomplete(parser)
     parser.parse_args()
-
+    if len(sys.argv) == 1:
+        parser.print_help()

pkgs/clan-cli/clan_admin.py

@@ -2,6 +2,7 @@
 import argparse
 import os
 import subprocess
+import sys
 
 
 def create(args: argparse.Namespace) -> None:
@@ -18,7 +19,7 @@ def create(args: argparse.Namespace) -> None:
     )
 
 
-def edit(args: argparse.Namespace) -> None:
+def edit(args: argparse.Namespace) -> None:  # pragma: no cover
     # TODO add some cli options to change certain options without relying on a text editor
     clan_flake = f"{args.folder}/flake.nix"
     if os.path.isfile(clan_flake):
@@ -30,11 +31,11 @@ def edit(args: argparse.Namespace) -> None:
         )
     else:
         print(
-            f"{args.folder} has no flake.nix, so it does not seem to be the clan root folder"
+            f"{args.folder} has no flake.nix, so it does not seem to be the clan root folder",
         )
 
 
-def rebuild(args: argparse.Namespace) -> None:
+def rebuild(args: argparse.Namespace) -> None: # pragma: no cover
     # TODO get clients from zerotier cli?
     if args.host:
         print(f"would redeploy {args.host} from clan {args.folder}")
@@ -42,7 +43,7 @@ def rebuild(args: argparse.Namespace) -> None:
         print(f"would redeploy all hosts from clan {args.folder}")
 
 
-def destroy(args: argparse.Namespace) -> None:
+def destroy(args: argparse.Namespace) -> None: # pragma: no cover
     # TODO get clan folder & hosts from somwhere (maybe ~/.config/clan/$name /)
     # send some kind of kill signal, then remove the folder
     if args.yes:
@@ -53,14 +54,14 @@ def destroy(args: argparse.Namespace) -> None:
         )
 
 
-def backup(args: argparse.Namespace) -> None:
+def backup(args: argparse.Namespace) -> None: # pragma: no cover
     if args.host:
         print(f"would backup {args.host} from clan {args.folder}")
     else:
         print(f"would backup all hosts from clan {args.folder}")
 
 
-def git(args: argparse.Namespace) -> None:
+def git(args: argparse.Namespace) -> None: # pragma: no cover
     subprocess.Popen(
         [
             "git",
@@ -119,8 +120,11 @@ def make_parser(parser: argparse.ArgumentParser) -> None:
     parser_git.set_defaults(func=git)
 
 
-# entry point if this file is executed directly
-if __name__ == "__main__":
+def clan_admin() -> None: # pragma: no cover
     parser = argparse.ArgumentParser(description="clan-admin")
     args = parser.parse_args()
     args.func(args)
+
+# entry point if this file is executed directly
+if __name__ == "__main__": # pragma: no cover
+    clan_admin()

pkgs/clan-cli/default.nix

@@ -25,6 +25,7 @@ let
       mypy
       pytest
       pytest-cov
+      pytest-subprocess
       setuptools
       wheel
       ;

pkgs/clan-cli/tests/test_clan_admin.py

@@ -0,0 +1,17 @@
+import argparse
+
+import clan_admin
+
+
+def test_make_parser():
+    parser = argparse.ArgumentParser()
+    clan_admin.make_parser(parser)
+
+# using fp fixture from pytest-subprocess
+def test_create(fp):
+    cmd = ["nix", "flake", "init", "-t", fp.any()]
+    fp.register(cmd)
+    args = argparse.Namespace(folder="./my-clan")
+    clan_admin.create(args)
+    assert fp.call_count(cmd) == 1
+

pkgs/clan-cli/tests/test_cli.py

@@ -1,16 +1,19 @@
 import sys
 
-import my_tool
+import pytest
+
+import clan
 
 
 def test_no_args(capsys):
-    my_tool.my_cli()
+    clan.clan()
     captured = capsys.readouterr()
     assert captured.out.startswith("usage:")
 
 
-def test_version(capsys, monkeypatch):
-    monkeypatch.setattr(sys, "argv", ["", "--version"])
-    my_tool.my_cli()
+def test_help(capsys, monkeypatch):
+    monkeypatch.setattr(sys, "argv", ["", "--help"])
+    with pytest.raises(SystemExit):
+        clan.clan()
     captured = capsys.readouterr()
-    assert captured.out.startswith("Version:")
+    assert captured.out.startswith("usage:")