implement power_state with tests.

1 files changed, 88 insertions, 0 deletions

diff --git a/tests/unittests/test_handler/test_handler_power_state.py b/tests/unittests/test_handler/test_handler_power_state.py
new file mode 100644
index 00000000..1149fedc
--- /dev/null
+++ b/tests/unittests/test_handler/test_handler_power_state.py
@@ -0,0 +1,88 @@
+from unittest import TestCase
+
+from cloudinit.config import cc_power_state_change as psc
+
+
+class TestLoadPowerState(TestCase):
+    def setUp(self):
+        super(self.__class__, self).setUp()
+
+    def test_no_config(self):
+        # completely empty config should mean do nothing
+        (cmd, _timeout) = psc.load_power_state({})
+        self.assertEqual(cmd, None)
+
+    def test_irrelevant_config(self):
+        # no power_state field in config should return None for cmd
+        (cmd, _timeout) = psc.load_power_state({'foo': 'bar'})
+        self.assertEqual(cmd, None)
+
+    def test_invalid_mode(self):
+        cfg = {'power_state': {'mode': 'gibberish'}}
+        self.assertRaises(TypeError, psc.load_power_state, cfg)
+
+        cfg = {'power_state': {'mode': ''}}
+        self.assertRaises(TypeError, psc.load_power_state, cfg)
+
+    def test_empty_mode(self):
+        cfg = {'power_state': {'message': 'goodbye'}}
+        self.assertRaises(TypeError, psc.load_power_state, cfg)
+
+    def test_valid_modes(self):
+        cfg = {'power_state': {}}
+        for mode in ('halt', 'poweroff', 'reboot'):
+            cfg['power_state']['mode'] = mode
+            check_lps_ret(psc.load_power_state(cfg), mode=mode)
+
+    def test_invalid_delay(self):
+        cfg = {'power_state': {'mode': 'poweroff', 'delay': 'goodbye'}}
+        self.assertRaises(TypeError, psc.load_power_state, cfg)
+
+    def test_valid_delay(self):
+        cfg = {'power_state': {'mode': 'poweroff', 'delay': ''}}
+        for delay in ("now", "+1", "+30"):
+            cfg['power_state']['delay'] = delay
+            check_lps_ret(psc.load_power_state(cfg))
+
+    def test_message_present(self):
+        cfg = {'power_state': {'mode': 'poweroff', 'message': 'GOODBYE'}}
+        ret = psc.load_power_state(cfg)
+        check_lps_ret(psc.load_power_state(cfg))
+        self.assertIn(cfg['power_state']['message'], ret[0])
+
+    def test_no_message(self):
+        # if message is not present, then no argument should be passed for it
+        cfg = {'power_state': {'mode': 'poweroff'}}
+        (cmd, _timeout) = psc.load_power_state(cfg)
+        self.assertNotIn("", cmd)
+        check_lps_ret(psc.load_power_state(cfg))
+        self.assertTrue(len(cmd) == 3)
+
+
+def check_lps_ret(psc_return, mode=None):
+    if len(psc_return) != 2:
+        raise TypeError("length returned = %d" % len(psc_return))
+
+    errs = []
+    cmd = psc_return[0]
+    timeout = psc_return[1]
+
+    if not 'shutdown' in psc_return[0][0]:
+        errs.append("string 'shutdown' not in cmd")
+
+    if mode is not None:
+        opt = {'halt': '-H', 'poweroff': '-P', 'reboot': '-r'}[mode]
+        if opt not in psc_return[0]:
+            errs.append("opt '%s' not in cmd: %s" % (opt, cmd))
+
+    if len(cmd) != 3 and len(cmd) != 4:
+        errs.append("Invalid command length: %s" % len(cmd))
+
+    try:
+        float(timeout)
+    except:
+        errs.append("timeout failed convert to float")
+
+    if len(errs):
+        lines = ["Errors in result: %s" % str(psc_return)] + errs
+        raise Exception('\n'.join(lines))