anybadge cli accessible via python -m (#79)

* anybadge cli can be called via python -m

* fix: anybadge should be shown in cli usage string

* also allow executing anybadge.server as module

* test: same output regardless of how cli is called

anybadge/__main__.py

@@ -0,0 +1,9 @@
+from .cli import main
+
+if __name__ == "__main__":
+    # ensure that `anybadge` shows in usage (not __main__.py)
+    import sys
+
+    sys.argv[0] = "anybadge"
+
+    main()

anybadge/server/__main__.py

@@ -0,0 +1,9 @@
+from .cli import main
+
+if __name__ == "__main__":
+    # ensure that `anybadge-server` shows in usage (not `__main__.py`)
+    import sys
+
+    sys.argv[0] = "anybadge-server"
+
+    main()

tests/test_anybadge.py

@@ -1,3 +1,4 @@
+import subprocess
 from pathlib import Path
 from unittest import TestCase
 from anybadge import Badge
@@ -403,3 +404,9 @@ class TestAnybadge(TestCase):
             semver=True,
         )
         self.assertEqual("orange", badge.badge_color)
+
+    def test_module_same_output_as_main_cli(self):
+        """Test that `python -m anybadge` is equivalent to calling `anybadge` directly."""
+        output_module = subprocess.check_output(["python", "-m", "anybadge", "--help"])
+        output_script = subprocess.check_output(["anybadge", "--help"])
+        self.assertEqual(output_module, output_script)

tests/test_server.py

@@ -43,3 +43,11 @@ class TestAnybadgeServer(TestCase):
         self.assertTrue(
             response.content.startswith(b'<?xml version="1.0" encoding="UTF-8"?>\n<svg')
         )
+
+    def test_server_module_same_output_as_server_cli(self):
+        """Test that `python -m anybadge.server` is equivalent to calling `anybadge-server` directly."""
+        output_module = subprocess.check_output(
+            ["python", "-m", "anybadge.server", "--help"]
+        )
+        output_script = subprocess.check_output(["anybadge-server", "--help"])
+        self.assertEqual(output_module, output_script)