Add cli fixture

ckan/cli/cli.py

@@ -61,7 +61,6 @@ def format_commands(self, ctx, formatter):
 @click.group(cls=CustomGroup)
 @click.help_option(u'-h', u'--help')
 @click_config_option
-# @click.pass_context
 def ckan(config, *args, **kwargs):
     pass
 

ckan/tests/cli/__init__.py

@@ -0,0 +1 @@
+# -*- coding: utf-8 -*-

ckan/tests/cli/test_cli.py

@@ -0,0 +1,35 @@
+# -*- coding: utf-8 -*-
+
+import pytest
+
+from ckan.cli.cli import ckan
+
+
+def test_ckan_without_args(cli):
+    """Show help by default.
+    """
+    result = cli.invoke(ckan)
+    assert result.output.startswith(u'Usage: ckan')
+    assert not result.exit_code
+
+
+def test_ckan_incorrect_config(cli):
+    """Config file must exist.
+    """
+    result = cli.invoke(ckan, [u'-c', u'/a/b/c/d/e/f/g/h.ini'])
+    assert result.output.startswith(u'Config file not found')
+
+
+def test_ckan_correct_config(cli, ckan_config):
+    """Presense of config file disables default printing of help message.
+    """
+    result = cli.invoke(ckan, [u'-c', ckan_config[u'__file__']])
+    assert u'Error: Missing command.' in result.output
+    assert result.exit_code
+
+
+def test_ckan_correct_config_with_help(cli, ckan_config):
+    """Config file not ignored when displaying usage.
+    """
+    result = cli.invoke(ckan, [u'-c', ckan_config[u'__file__'], u'-h'])
+    assert not result.exit_code

ckan/tests/pytest_ckan/fixtures.py

@@ -29,6 +29,8 @@
 """
 
 import pytest
+
+from click.testing import CliRunner
 import ckan.tests.helpers as test_helpers
 import ckan.plugins
 import ckan.lib.search as search
@@ -100,6 +102,19 @@ def test_dataset_search(self, app):
     return make_app()
 
 
+@pytest.fixture(scope=u"session")
+def cli():
+    """Provides object for invoking CLI commands from tests.
+
+    This is pure `click.testing.CliRunner`, so all examples from
+    `Click docs
+    <https://click.palletsprojects.com/en/master/testing/>`_ are valid
+    for it.
+
+    """
+    return CliRunner()
+
+
 @pytest.fixture(scope=u"session")
 def reset_db():
     """Callable for resetting the database to the initial state.

ckan/tests/pytest_ckan/test_fixtures.py

@@ -36,7 +36,7 @@ def test_with_plugins_is_able_to_run_with_stats():
     assert plugins.plugin_loaded(u"stats")
 
 
-class TestMethodLevelConfig:
+class TestMethodLevelConfig(object):
     """Verify that config overrides work for individual methods.
     """
 
@@ -50,7 +50,7 @@ def test_ckan_config_mark_second(self, ckan_config):
 
 
 @pytest.mark.ckan_config(u"some.new.config", u"exists")
-class TestMethodLevelConfig:
+class TestMethodLevelConfig(object):
     """Verify that config overrides applied for each method when applied
     per on class level.
     """