Write test for expected behavior

Author: ZettZet

tests/fixtures/application_help_multiple_word.txt

@@ -0,0 +1,16 @@
+
+Description:
+  The foo bar command
+
+Usage:
+  foo bar [options]
+  afoobar
+
+Options:
+  -h, --help            Display help for the given command. When no command is given display help for the list command.
+  -q, --quiet           Do not output any message.
+  -V, --version         Display this application version.
+      --ansi            Force ANSI output.
+      --no-ansi         Disable ANSI output.
+  -n, --no-interaction  Do not ask any interactive question.
+  -v|vv|vvv, --verbose  Increase the verbosity of messages: 1 for normal output, 2 for more verbose output and 3 for debug.

tests/test_application.py

@@ -118,6 +118,21 @@ def test_silent_help(app: Application) -> None:
     assert tester.io.fetch_output() == ""
 
 
+def test_help_multiple_word_command(app: Application) -> None:
+    app.catch_exceptions(False)
+
+    foo = FooCommand()
+    app.add(foo)
+
+    tester = ApplicationTester(app)
+    tester.execute("help foo bar")
+
+    assert (
+        tester.io.fetch_output()
+        == FIXTURES_PATH.joinpath("application_help_multiple_word.txt").read_text()
+    )
+
+
 def test_get_namespaces(app: Application) -> None:
     app.add(FooCommand())
     app.add(Foo1Command())