command and group decorator parentheses are optional

1 files changed, 37 insertions, 0 deletions

diff --git a/tests/test_command_decorators.py b/tests/test_command_decorators.py
new file mode 100644
index 0000000..8d07531
--- /dev/null
+++ b/tests/test_command_decorators.py
@@ -0,0 +1,37 @@
+import click
+
+
+def test_command_no_parens(runner):
+    @click.command
+    def cli():
+        click.echo("hello")
+
+    result = runner.invoke(cli)
+    assert result.exception is None
+    assert result.output == "hello\n"
+
+
+def test_group_no_parens(runner):
+    @click.group
+    def grp():
+        click.echo("grp1")
+
+    @grp.command
+    def cmd1():
+        click.echo("cmd1")
+
+    @grp.group
+    def grp2():
+        click.echo("grp2")
+
+    @grp2.command
+    def cmd2():
+        click.echo("cmd2")
+
+    result = runner.invoke(grp, ["cmd1"])
+    assert result.exception is None
+    assert result.output == "grp1\ncmd1\n"
+
+    result = runner.invoke(grp, ["grp2", "cmd2"])
+    assert result.exception is None
+    assert result.output == "grp1\ngrp2\ncmd2\n"