Added tests for adding handlers.

1 files changed, 178 insertions, 0 deletions

diff --git a/tests/unittests/test_handler/test_handler_ca_certs.py b/tests/unittests/test_handler/test_handler_ca_certs.py
new file mode 100644
index 00000000..d6513b5b
--- /dev/null
+++ b/tests/unittests/test_handler/test_handler_ca_certs.py
@@ -0,0 +1,178 @@
+from mocker import MockerTestCase
+
+from cloudinit.util import write_file, delete_dir_contents
+from cloudinit.CloudConfig.cc_ca_certs import (
+    handle, update_ca_certs, add_ca_certs, remove_default_ca_certs)
+from logging import getLogger
+
+
+class TestNoConfig(MockerTestCase):
+    def setUp(self):
+        super(TestNoConfig, self).setUp()
+        self.name = "ca-certs"
+        self.cloud_init = None
+        self.log = getLogger("TestNoConfig")
+        self.args = []
+
+    def test_no_config(self):
+        """
+        Test that nothing is done if no ca-certs configuration is provided.
+        """
+        config = {"unknown-key": "value"}
+
+        self.mocker.replace(write_file, passthrough=False)
+        self.mocker.replace(update_ca_certs, passthrough=False)
+        self.mocker.replay()
+
+        handle(self.name, config, self.cloud_init, self.log, self.args)
+
+
+class TestConfig(MockerTestCase):
+    def setUp(self):
+        super(TestConfig, self).setUp()
+        self.name = "ca-certs"
+        self.cloud_init = None
+        self.log = getLogger("TestNoConfig")
+        self.args = []
+
+        # Mock out the functions that actually modify the system
+        self.mock_add = self.mocker.replace(add_ca_certs, passthrough=False)
+        self.mock_update = self.mocker.replace(update_ca_certs,
+                                               passthrough=False)
+        self.mock_remove = self.mocker.replace(remove_default_ca_certs,
+                                               passthrough=False)
+        # Order must be correct
+        self.mocker.order()
+
+    def test_no_trusted_list(self):
+        """
+        Test that no certificates are written if the 'trusted' key is not
+        present.
+        """
+        config = {"ca-certs": {}}
+
+        # No functions should be called
+        self.mock_update()
+        self.mocker.replay()
+
+        handle(self.name, config, self.cloud_init, self.log, self.args)
+
+    def test_empty_trusted_list(self):
+        """Test that no certificate are written if 'trusted' list is empty"""
+        config = {"ca-certs": {"trusted": []}}
+
+        # No functions should be called
+        self.mock_update()
+        self.mocker.replay()
+
+        handle(self.name, config, self.cloud_init, self.log, self.args)
+
+    def test_single_trusted(self):
+        """Test that a single cert gets passed to add_ca_certs"""
+        config = {"ca-certs": {"trusted": ["CERT1"]}}
+
+        self.mock_add(["CERT1"])
+        self.mock_update()
+        self.mocker.replay()
+
+        handle(self.name, config, self.cloud_init, self.log, self.args)
+
+    def test_multiple_trusted(self):
+        """Test that multiple certs get passed to add_ca_certs"""
+        config = {"ca-certs": {"trusted": ["CERT1", "CERT2"]}}
+
+        self.mock_add(["CERT1", "CERT2"])
+        self.mock_update()
+        self.mocker.replay()
+
+        handle(self.name, config, self.cloud_init, self.log, self.args)
+
+    def test_remove_default_ca_certs(self):
+        """Test remove_defaults works as expected"""
+        config = {"ca-certs": {"remove-defaults": True}}
+
+        self.mock_remove()
+        self.mock_update()
+        self.mocker.replay()
+
+        handle(self.name, config, self.cloud_init, self.log, self.args)
+
+    def test_no_remove_defaults_if_false(self):
+        """Test remove_defaults is not called when config value is False"""
+        config = {"ca-certs": {"remove-defaults": False}}
+
+        self.mock_update()
+        self.mocker.replay()
+
+        handle(self.name, config, self.cloud_init, self.log, self.args)
+
+    def test_correct_order_for_remove_then_add(self):
+        """Test remove_defaults is not called when config value is False"""
+        config = {"ca-certs": {"remove-defaults": True, "trusted": ["CERT1"]}}
+
+        self.mock_remove()
+        self.mock_add(["CERT1"])
+        self.mock_update()
+        self.mocker.replay()
+
+        handle(self.name, config, self.cloud_init, self.log, self.args)
+
+
+class TestAddCaCerts(MockerTestCase):
+    def test_no_certs_in_list(self):
+        """Test that no certificate are written if not provided."""
+        self.mocker.replace(write_file, passthrough=False)
+        self.mocker.replay()
+
+        add_ca_certs([])
+
+    def test_single_cert(self):
+        """Test adding a single certificate to the trusted CAs"""
+        cert = "CERT1\nLINE2\nLINE3"
+
+        mock_write = self.mocker.replace(write_file, passthrough=False)
+        mock_write("/usr/share/ca-certificates/cloud-init-ca-certs.crt",
+                   cert, mode=0644)
+        mock_write("/etc/ca-certificates.conf",
+                   "\ncloud-init-ca-certs.crt", omode="a")
+        self.mocker.replay()
+
+        add_ca_certs([cert])
+
+    def test_multiple_certs(self):
+        """Test adding multiple certificates to the trusted CAs"""
+        certs = ["CERT1\nLINE2\nLINE3", "CERT2\nLINE2\nLINE3"]
+        expected_cert_file = "\n".join(certs)
+
+        mock_write = self.mocker.replace(write_file, passthrough=False)
+        mock_write("/usr/share/ca-certificates/cloud-init-ca-certs.crt",
+                   expected_cert_file, mode=0644)
+        mock_write("/etc/ca-certificates.conf",
+                   "\ncloud-init-ca-certs.crt", omode="a")
+        self.mocker.replay()
+
+        add_ca_certs(certs)
+
+
+class TestUpdateCaCerts(MockerTestCase):
+    def test_commands(self):
+        mock_check_call = self.mocker.replace("subprocess.check_call",
+                                              passthrough=False)
+        mock_check_call(["update-ca-certificates"])
+        self.mocker.replay()
+
+        update_ca_certs()
+
+
+class TestRemoveDefaultCaCerts(MockerTestCase):
+    def test_commands(self):
+        mock_delete_dir_contents = self.mocker.replace(delete_dir_contents,
+                                                       passthrough=False)
+        mock_write = self.mocker.replace(write_file, passthrough=False)
+
+        mock_delete_dir_contents("/usr/share/ca-certificates/")
+        mock_delete_dir_contents("/etc/ssl/certs/")
+        mock_write("/etc/ca-certificates.conf", "", mode=0644)
+        self.mocker.replay()
+
+        remove_default_ca_certs()