feat: allow extensions to add commands (#1017)

* feat: allow extensions to add commands

* refactor: fix tests

* refactor: more test fix

* refactor: more test fixes

* refactor: more linter fixes

tests/test_command_create.py

@@ -0,0 +1,153 @@
+import os
+import tempfile
+from io import StringIO
+from shutil import rmtree
+from unittest.mock import patch
+
+import pytest
+from django.core.management import call_command
+from django.core.management.base import CommandError
+from django_components.testing import djc_test
+from .testutils import setup_test_config
+
+setup_test_config({"autodiscover": False})
+
+
+@djc_test
+class TestCreateComponentCommand:
+    def test_default_file_names(self):
+        temp_dir = tempfile.mkdtemp()
+
+        component_name = "defaultcomponent"
+        call_command("components", "create", component_name, "--path", temp_dir)
+
+        expected_files = [
+            os.path.join(temp_dir, component_name, "script.js"),
+            os.path.join(temp_dir, component_name, "style.css"),
+            os.path.join(temp_dir, component_name, "template.html"),
+        ]
+        for file_path in expected_files:
+            assert os.path.exists(file_path)
+
+        rmtree(temp_dir)
+
+    def test_nondefault_creation(self):
+        temp_dir = tempfile.mkdtemp()
+
+        component_name = "testcomponent"
+        call_command(
+            "components",
+            "create",
+            component_name,
+            "--path",
+            temp_dir,
+            "--js",
+            "test.js",
+            "--css",
+            "test.css",
+            "--template",
+            "test.html",
+        )
+
+        expected_files = [
+            os.path.join(temp_dir, component_name, "test.js"),
+            os.path.join(temp_dir, component_name, "test.css"),
+            os.path.join(temp_dir, component_name, "test.html"),
+            os.path.join(temp_dir, component_name, f"{component_name}.py"),
+        ]
+
+        for file_path in expected_files:
+            assert os.path.exists(file_path), f"File {file_path} was not created"
+
+        rmtree(temp_dir)
+
+    def test_dry_run(self):
+        temp_dir = tempfile.mkdtemp()
+
+        component_name = "dryruncomponent"
+        call_command(
+            "components",
+            "create",
+            component_name,
+            "--path",
+            temp_dir,
+            "--dry-run",
+        )
+
+        component_path = os.path.join(temp_dir, component_name)
+        assert not os.path.exists(component_path)
+
+        rmtree(temp_dir)
+
+    def test_force_overwrite(self):
+        temp_dir = tempfile.mkdtemp()
+
+        component_name = "existingcomponent"
+        component_path = os.path.join(temp_dir, component_name)
+        os.makedirs(component_path)
+
+        with open(os.path.join(component_path, f"{component_name}.py"), "w") as f:
+            f.write("hello world")
+
+        call_command(
+            "components",
+            "create",
+            component_name,
+            "--path",
+            temp_dir,
+            "--force",
+        )
+
+        with open(os.path.join(component_path, f"{component_name}.py"), "r") as f:
+            assert "hello world" not in f.read()
+
+        rmtree(temp_dir)
+
+    def test_error_existing_component_no_force(self):
+        temp_dir = tempfile.mkdtemp()
+
+        component_name = "existingcomponent_2"
+        component_path = os.path.join(temp_dir, component_name)
+        os.makedirs(component_path)
+
+        with pytest.raises(CommandError):
+            call_command("components", "create", component_name, "--path", temp_dir)
+
+        rmtree(temp_dir)
+
+    def test_verbose_output(self):
+        temp_dir = tempfile.mkdtemp()
+
+        component_name = "verbosecomponent"
+        out = StringIO()
+        with patch("sys.stdout", new=out):
+            call_command(
+                "components",
+                "create",
+                component_name,
+                "--path",
+                temp_dir,
+                "--verbose",
+                stdout=out,
+            )
+        output = out.getvalue()
+        assert "component at" in output
+
+        rmtree(temp_dir)
+
+    # TODO_V1 - REMOVE - deprecated
+    def test_startcomponent(self):
+        temp_dir = tempfile.mkdtemp()
+
+        component_name = "defaultcomponent"
+        call_command("startcomponent", component_name, "--path", temp_dir)
+
+        expected_files = [
+            os.path.join(temp_dir, component_name, "script.js"),
+            os.path.join(temp_dir, component_name, "style.css"),
+            os.path.join(temp_dir, component_name, "template.html"),
+        ]
+        for file_path in expected_files:
+            assert os.path.exists(file_path)
+
+        rmtree(temp_dir)