def test_get_param(self):
from rosmaster.paramserver import ParamDictionary
param_server = ParamDictionary(None)
val = random.randint(0, 10000)
full_dict = {}
# very similar to has param sequence
self.failIf(param_server.has_param('/new_param'))
self.failIf(param_server.has_param('/new_param/'))
self.assertGetParamFail(param_server, '/new_param')
param_server.set_param('/new_param', val)
full_dict['new_param'] = val
self.assertEquals(val, param_server.get_param('/new_param'))
self.assertEquals(val, param_server.get_param('/new_param/'))
# - test homonym
self.assertEquals(val, param_server.get_param('/new_param//'))
# test full get
self.assertEquals(full_dict, param_server.get_param('/'))
# test with param in sub-namespace
val = random.randint(0, 10000)
self.failIf(param_server.has_param('/sub/sub2/new_param2'))
self.assertGetParamFail(param_server, '/sub/sub2/new_param2')
param_server.set_param('/sub/sub2/new_param2', val)
full_dict['sub'] = {'sub2': { 'new_param2': val }}
self.assertEquals(val, param_server.get_param('/sub/sub2/new_param2'))
# - test homonym
self.assertEquals(val, param_server.get_param('/sub///sub2/new_param2/'))
# test full get
self.assertEquals(full_dict, param_server.get_param('/'))
# test that parameter server namespace-get (#587)
val1 = random.randint(0, 10000)
val2 = random.randint(0, 10000)
val3 = random.randint(0, 10000)
for k in ['/gains/P', '/gains/I', '/gains/D', '/gains']:
self.assertGetParamFail(param_server, k)
self.failIf(param_server.has_param(k))
param_server.set_param('/gains/P', val1)
param_server.set_param('/gains/I', val2)
param_server.set_param('/gains/D', val3)
pid = {'P': val1, 'I': val2, 'D': val3}
full_dict['gains'] = pid
self.assertEquals(pid,
param_server.get_param('/gains'))
self.assertEquals(pid,
param_server.get_param('/gains/'))
self.assertEquals(full_dict,
param_server.get_param('/'))
self.failIf(param_server.has_param('/ns/gains/P'))
self.failIf(param_server.has_param('/ns/gains/I'))
self.failIf(param_server.has_param('/ns/gains/D'))
self.failIf(param_server.has_param('/ns/gains'))
param_server.set_param('/ns/gains/P', val1)
param_server.set_param('/ns/gains/I', val2)
param_server.set_param('/ns/gains/D', val3)
full_dict['ns'] = {'gains': pid}
self.assertEquals(pid,
param_server.get_param('/ns/gains'))
self.assertEquals({'gains': pid},
param_server.get_param('/ns/'))
self.assertEquals({'gains': pid},
param_server.get_param('/ns'))
self.assertEquals(full_dict,
param_server.get_param('/'))
def test_set_param(self):
from rosmaster.paramserver import ParamDictionary
param_server = ParamDictionary(None)
caller_id = '/node'
val = random.randint(0, 10000)
# verify error behavior with root
try:
param_server.set_param('/', 1)
self.fail("ParamDictionary allowed root to be set to non-dictionary")
except: pass
# very similar to has param sequence
self.failIf(param_server.has_param('/new_param'))
param_server.set_param('/new_param', val)
self.assertEquals(val, param_server.get_param('/new_param'))
self.assertEquals(val, param_server.get_param('/new_param/'))
self.assert_(param_server.has_param('/new_param'))
# test with param in sub-namespace
val = random.randint(0, 10000)
self.failIf(param_server.has_param('/sub/sub2/new_param2'))
param_server.set_param('/sub/sub2/new_param2', val)
self.assertEquals(val, param_server.get_param('/sub/sub2/new_param2'))
# test with param type mutation
vals = ['a', {'a': 'b'}, 1, 1., 'foo', {'c': 'd'}, 4, {'a': {'b': 'c'}}, 3]
for v in vals:
param_server.set_param('/multi/multi_param', v)
self.assertEquals(v, param_server.get_param('/multi/multi_param'))
# - set value within subtree that mutates higher level value
param_server.set_param('/multi2/multi_param', 1)
self.assertEquals(1, param_server.get_param('/multi2/multi_param'))
param_server.set_param('/multi2/multi_param/a', 2)
self.assertEquals(2, param_server.get_param('/multi2/multi_param/a'))
self.assertEquals({'a': 2}, param_server.get_param('/multi2/multi_param/'))
param_server.set_param('/multi2/multi_param/a/b', 3)
self.assertEquals(3, param_server.get_param('/multi2/multi_param/a/b'))
self.assertEquals({'b': 3}, param_server.get_param('/multi2/multi_param/a/'))
self.assertEquals({'a': {'b': 3}}, param_server.get_param('/multi2/multi_param/'))
# test that parameter server namespace-set (#587)
self.failIf(param_server.has_param('/gains/P'))
self.failIf(param_server.has_param('/gains/I'))
self.failIf(param_server.has_param('/gains/D'))
self.failIf(param_server.has_param('/gains'))
pid = {'P': random.randint(0, 10000), 'I': random.randint(0, 10000), 'D': random.randint(0, 10000)}
param_server.set_param('/gains', pid)
self.assertEquals(pid, param_server.get_param('/gains'))
self.assertEquals(pid['P'], param_server.get_param('/gains/P'))
self.assertEquals(pid['I'], param_server.get_param('/gains/I'))
self.assertEquals(pid['D'], param_server.get_param('/gains/D'))
subns = {'gains1': pid, 'gains2': pid}
param_server.set_param('/ns', subns)
self.assertEquals(pid['P'], param_server.get_param('/ns/gains1/P'))
self.assertEquals(pid['I'], param_server.get_param('/ns/gains1/I'))
self.assertEquals(pid['D'], param_server.get_param('/ns/gains1/D'))
self.assertEquals(pid, param_server.get_param('/ns/gains1'))
self.assertEquals(pid, param_server.get_param('/ns/gains2'))
self.assertEquals(subns, param_server.get_param('/ns/'))
# test empty dictionary set
param_server.set_param('/ns', {})
# - param should still exist
self.assert_(param_server.has_param('/ns/'))
# - value should remain dictionary
self.assertEquals({}, param_server.get_param('/ns/'))
# - value2 below /ns/ should be erased
self.failIf(param_server.has_param('/ns/gains1'))
self.failIf(param_server.has_param('/ns/gains1/P'))
# verify that root can be set and that it erases all values
param_server.set_param('/', {})
self.failIf(param_server.has_param('/new_param'))
param_server.set_param('/', {'foo': 1, 'bar': 2, 'baz': {'a': 'a'}})
self.assertEquals(1, param_server.get_param('/foo'))
self.assertEquals(1, param_server.get_param('/foo/'))
self.assertEquals(2, param_server.get_param('/bar'))
self.assertEquals(2, param_server.get_param('/bar/'))
self.assertEquals('a', param_server.get_param('/baz/a'))
self.assertEquals('a', param_server.get_param('/baz/a/'))
def test_subscribe_param_tree(self):
from rosmaster.registrations import RegistrationManager
from rosmaster.paramserver import ParamDictionary
# setup node and subscriber data
reg_manager = RegistrationManager(ThreadPoolMock())
param_server = ParamDictionary(reg_manager)
# Test Parameter Tree Subscriptions
# simple case - subscribe and set whole tree
gains = {'p': 'P', 'i': 'I', 'd' : 'D'}
self.assertEquals({}, param_server.subscribe_param('/gains', ('ptnode', 'http://ptnode:1')))
param_server.set_param('/gains', gains.copy(), notify_task=self.notify_task)
self.assertEquals([([('ptnode', 'http://ptnode:1')], '/gains/', gains), ], self.last_update)
# - test with trailing slash
param_server.set_param('/gains/', gains.copy(), notify_task=self.notify_task)
self.assertEquals([([('ptnode', 'http://ptnode:1')], '/gains/', gains), ], self.last_update)
# change params within tree
param_server.set_param('/gains/p', 'P2', notify_task=self.notify_task)
self.assertEquals([([('ptnode', 'http://ptnode:1')], '/gains/p/', 'P2'), ], self.last_update)
param_server.set_param('/gains/i', 'I2', notify_task=self.notify_task)
self.assertEquals([([('ptnode', 'http://ptnode:1')], '/gains/i/', 'I2'), ], self.last_update)
# test overlapping subscriptions
self.assertEquals('P2', param_server.subscribe_param('/gains/p', ('ptnode2', 'http://ptnode2:2')))
param_server.set_param('/gains', gains.copy(), notify_task=self.notify_task)
self.assertEquals([([('ptnode', 'http://ptnode:1')], '/gains/', gains), \
([('ptnode2', 'http://ptnode2:2')], '/gains/p/', 'P'), \
], self.last_update)
# - retest with trailing slash on subscribe
self.last_update = None
self.assertEquals('P', param_server.subscribe_param('/gains/p/', ('ptnode2', 'http://ptnode2:2')))
param_server.set_param('/gains', gains.copy(), notify_task=self.notify_task)
self.assertEquals([([('ptnode', 'http://ptnode:1')], '/gains/', gains), \
([('ptnode2', 'http://ptnode2:2')], '/gains/p/', 'P'), \
], self.last_update)
# test with overlapping (change to sub param)
param_server.set_param('/gains/p', 'P3', notify_task=self.notify_task)
# - this is a bit overtuned as a more optimal ps could use one update
ptnode2 = ([('ptnode2', 'http://ptnode2:2')], '/gains/p/', 'P3')
ptnode = ([('ptnode', 'http://ptnode:1')], '/gains/p/', 'P3')
self.assertTrue(len(self.last_update) == 2)
self.assertTrue(ptnode2 in self.last_update)
self.assertTrue(ptnode in self.last_update)
# virtual deletion: subscribe to subparam, parameter tree reset
self.last_update = None
param_server.set_param('/gains2', gains.copy(), notify_task=self.notify_task)
self.assertEquals('P', param_server.subscribe_param('/gains2/p/', ('ptnode3', 'http://ptnode3:3')))
# - erase the sub parameters
param_server.set_param('/gains2', {}, notify_task=self.notify_task)
self.assertEquals([([('ptnode3', 'http://ptnode3:3')], '/gains2/p/', {}), ], self.last_update)
#Final test: test subscription to entire tree
self.last_update = None
param_server.delete_param('/gains')
param_server.delete_param('/gains2')
self.assertEquals({}, param_server.get_param('/'))
self.assertEquals({}, param_server.subscribe_param('/', ('allnode', 'http://allnode:1')))
param_server.set_param('/one', 1, notify_task=self.notify_task)
self.assertEquals([([('allnode', 'http://allnode:1')], '/one/', 1), ], self.last_update)
param_server.set_param('/two', 2, notify_task=self.notify_task)
self.assertEquals([([('allnode', 'http://allnode:1')], '/two/', 2), ], self.last_update)
param_server.set_param('/foo/bar', 'bar', notify_task=self.notify_task)
self.assertEquals([([('allnode', 'http://allnode:1')], '/foo/bar/', 'bar'), ], self.last_update)