def test_deferred_events_debug(self): # XXX Subsumed by next test
'Deferred events -- DEBUG'
c1, c2, c3 = self.factory(), self.factory(), self.factory()
dm = DictModifiedEventMonitor(c1)
cm = ContextModifiedEventMonitor(c1)
#print 'one' # XXX
#def p(s): print s # XXX
#c1.on_trait_change(lambda *args: p('A'), 'defer_events') # XXX
#c1.context_data.on_trait_change(lambda *args:p('B'), 'defer_events')#XXX
c1.defer_events = True
#print 'two' # XXX
c1.update(a=1, x=arange(3), c2=c2)
c2.update(a=2, x=-arange(3))
c3.update(a=3, x=1+arange(3))
c1.update(c3=c3)
dm.assert_events()
cm.assert_events()
c1.defer_events = False
dm.assert_event(added={'a':1, 'x':arange(3), 'c2':c2, 'c3':c3})
cm.assert_event(added=['x', 'c2.x', 'c3.x'], changed=['a', 'c2', 'c3'])
c1.defer_events = True
c1['x'] = -arange(3)
c2['x'] = arange(3)
c1.set_dotted('c3.x', 1-arange(3))
dm.assert_events()
cm.assert_events()
c1.defer_events = False
dm.assert_event(changed={'x':arange(3)})
cm.assert_event(modified=['x', 'c2.x', 'c3.x'])
def test_deferred_events_debug(self): # XXX Subsumed by next test
"Deferred events -- DEBUG"
c1, c2, c3 = self.factory(), self.factory(), self.factory()
dm = DictModifiedEventMonitor(c1)
cm = ContextModifiedEventMonitor(c1)
# print 'one' # XXX
# def p(s): print s # XXX
# c1.on_trait_change(lambda *args: p('A'), 'defer_events') # XXX
# c1.context_data.on_trait_change(lambda *args:p('B'), 'defer_events')#XXX
c1.defer_events = True
# print 'two' # XXX
c1.update(a=1, x=arange(3), c2=c2)
c2.update(a=2, x=-arange(3))
c3.update(a=3, x=1 + arange(3))
c1.update(c3=c3)
dm.assert_events()
cm.assert_events()
c1.defer_events = False
dm.assert_event(added={"a": 1, "x": arange(3), "c2": c2, "c3": c3})
cm.assert_event(added=["x", "c2.x", "c3.x"], changed=["a", "c2", "c3"])
c1.defer_events = True
c1["x"] = -arange(3)
c2["x"] = arange(3)
c1.set_dotted("c3.x", 1 - arange(3))
dm.assert_events()
cm.assert_events()
c1.defer_events = False
dm.assert_event(changed={"x": arange(3)})
cm.assert_event(modified=["x", "c2.x", "c3.x"])
def test_pickling_dynamic_binding(self):
"Pickling: dynamic binding"
p = self.factory()
c = self.factory(context_name="c")
p.bind_dynamic(c, "context_name")
# Pickle 'p'. Also pickle the new 'p' out to nowhere to ensure that
# '__getstate__' doesn't have side effects.
p = loads(dumps(p))
dumps(p)
c = p["c"]
dm = DictModifiedEventMonitor(p)
cm = ContextModifiedEventMonitor(p)
c.context_name = "d"
dm.assert_events(dict(removed={"c": c}), dict(added={"d": c}))
cm.assert_events(dict(changed="c"), dict(changed="d"))
p["c"] = c
dm.assert_events(dict(removed={"d": c}), dict(added={"c": c}))
cm.assert_events(dict(changed="d"), dict(changed="c"))
del p["c"]
dm.assert_event(removed={"c": c})
cm.assert_event(changed="c")
c.context_name = "d"
dm.assert_events()
cm.assert_events()
def test_deferred_events_debug(self): # XXX Subsumed by next test
'Deferred events -- DEBUG'
c1, c2, c3 = self.factory(), self.factory(), self.factory()
dm = DictModifiedEventMonitor(c1)
cm = ContextModifiedEventMonitor(c1)
#print 'one' # XXX
#def p(s): print s # XXX
#c1.on_trait_change(lambda *args: p('A'), 'defer_events') # XXX
#c1.context_data.on_trait_change(lambda *args:p('B'), 'defer_events')#XXX
c1.defer_events = True
#print 'two' # XXX
c1.update(a=1, x=arange(3), c2=c2)
c2.update(a=2, x=-arange(3))
c3.update(a=3, x=1+arange(3))
c1.update(c3=c3)
dm.assert_events()
cm.assert_events()
c1.defer_events = False
dm.assert_event(added={'a':1, 'x':arange(3), 'c2':c2, 'c3':c3})
cm.assert_event(added=['x', 'c2.x', 'c3.x'], changed=['a', 'c2', 'c3'])
c1.defer_events = True
c1['x'] = -arange(3)
c2['x'] = arange(3)
c1.set_dotted('c3.x', 1-arange(3))
dm.assert_events()
cm.assert_events()
c1.defer_events = False
dm.assert_event(changed={'x':arange(3)})
cm.assert_event(modified=['x', 'c2.x', 'c3.x'])
def test_regression_context_modified_incomplete_when_array_replaces_none(self):
"Regression: 'context_modified' incomplete when array replaces None"
c = self.factory()
dm = DictModifiedEventMonitor(c)
cm = ContextModifiedEventMonitor(c)
c["x"] = None
dm.assert_event(added={"x": None})
cm.assert_event(changed="x")
c["x"] = arange(3)
dm.assert_event(changed={"x": None})
cm.assert_event(changed="x", added="x")
def test_events_multiple_names(self):
"Events: multiple names"
c = self.factory()
dm = DictModifiedEventMonitor(c)
cm = ContextModifiedEventMonitor(c)
c.update(a=1, x=arange(3), t=True)
dm.assert_event(added={"a": 1, "x": arange(3), "t": True})
cm.assert_event(changed="at", added="x")
c.update(a=2, x=-arange(3), y=arange(3))
dm.assert_event(changed={"a": 1, "x": arange(3)}, added={"y": arange(3)})
cm.assert_events(dict(changed="a", modified="x", added="y"))
del c["t"]
dm.assert_event(removed={"t": True})
cm.assert_event(changed="t")
del c["x"]
dm.assert_event(removed={"x": -arange(3)})
cm.assert_event(removed="x")
c.clear()
dm.assert_event(removed={"a": 2, "y": arange(3)})
cm.assert_event(changed="a", removed="y")
def test_events_multiple_names(self):
'Events: multiple names'
c = self.factory()
dm = DictModifiedEventMonitor(c)
cm = ContextModifiedEventMonitor(c)
c.update(a=1, x=arange(3), t=True)
dm.assert_event(added={'a':1, 'x':arange(3), 't':True})
cm.assert_event(changed='at', added='x')
c.update(a=2, x=-arange(3), y=arange(3))
dm.assert_event(changed={'a':1, 'x':arange(3)}, added={'y':arange(3)})
cm.assert_events(dict(changed='a', modified='x', added='y'))
del c['t']
dm.assert_event(removed={'t':True})
cm.assert_event(changed='t')
del c['x']
dm.assert_event(removed={'x':-arange(3)})
cm.assert_event(removed='x')
c.clear()
dm.assert_event(removed={'a':2, 'y':arange(3)})
cm.assert_event(changed='a', removed='y')
def test_events_multiple_names(self):
'Events: multiple names'
c = self.factory()
dm = DictModifiedEventMonitor(c)
cm = ContextModifiedEventMonitor(c)
c.update(a=1, x=arange(3), t=True)
dm.assert_event(added={'a':1, 'x':arange(3), 't':True})
cm.assert_event(changed='at', added='x')
c.update(a=2, x=-arange(3), y=arange(3))
dm.assert_event(changed={'a':1, 'x':arange(3)}, added={'y':arange(3)})
cm.assert_events(dict(changed='a', modified='x', added='y'))
del c['t']
dm.assert_event(removed={'t':True})
cm.assert_event(changed='t')
del c['x']
dm.assert_event(removed={'x':-arange(3)})
cm.assert_event(removed='x')
c.clear()
dm.assert_event(removed={'a':2, 'y':arange(3)})
cm.assert_event(changed='a', removed='y')
def test_regression_context_modified_incomplete_when_array_replaces_none(self):
"Regression: 'context_modified' incomplete when array replaces None"
c = self.factory()
dm = DictModifiedEventMonitor(c)
cm = ContextModifiedEventMonitor(c)
c['x'] = None
dm.assert_event(added={'x':None})
cm.assert_event(changed='x')
c['x'] = arange(3)
dm.assert_event(changed={'x':None})
cm.assert_event(changed='x', added='x')
def test_pickling_dynamic_binding(self):
'Pickling: dynamic binding'
p = self.factory()
c = self.factory(context_name='c')
p.bind_dynamic(c, 'context_name')
# Pickle 'p'. Also pickle the new 'p' out to nowhere to ensure that
# '__getstate__' doesn't have side effects.
p = loads(dumps(p))
dumps(p)
c = p['c']
dm = DictModifiedEventMonitor(p)
cm = ContextModifiedEventMonitor(p)
c.context_name = 'd'
dm.assert_events(dict(removed={'c':c}),
dict(added={'d':c}))
cm.assert_events(dict(changed='c'),
dict(changed='d'))
p['c'] = c
dm.assert_events(dict(removed={'d':c}),
dict(added={'c':c}))
cm.assert_events(dict(changed='d'),
dict(changed='c'))
del p['c']
dm.assert_event(removed={'c':c})
cm.assert_event(changed='c')
c.context_name = 'd'
dm.assert_events()
cm.assert_events()
def test_pickling_dynamic_binding(self):
'Pickling: dynamic binding'
p = self.factory()
c = self.factory(context_name='c')
p.bind_dynamic(c, 'context_name')
# Pickle 'p'. Also pickle the new 'p' out to nowhere to ensure that
# '__getstate__' doesn't have side effects.
p = loads(dumps(p))
dumps(p)
c = p['c']
dm = DictModifiedEventMonitor(p)
cm = ContextModifiedEventMonitor(p)
c.context_name = 'd'
dm.assert_events(dict(removed={'c':c}),
dict(added={'d':c}))
cm.assert_events(dict(changed='c'),
dict(changed='d'))
p['c'] = c
dm.assert_events(dict(removed={'d':c}),
dict(added={'c':c}))
cm.assert_events(dict(changed='d'),
dict(changed='c'))
del p['c']
dm.assert_event(removed={'c':c})
cm.assert_event(changed='c')
c.context_name = 'd'
dm.assert_events()
cm.assert_events()
def test_events_dynamic_binding(self):
"Events: dynamic binding"
# TODO Consolidate events
p = self.factory()
c = self.factory(context_name="c")
c["x"] = arange(3)
c["a"] = 8
dm = DictModifiedEventMonitor(p)
cm = ContextModifiedEventMonitor(p)
p.bind_dynamic(c, "context_name")
dm.assert_event(added={"c": c})
cm.assert_event(changed="c", added=["c.x"])
c.context_name = "bar"
dm.assert_events(dict(removed={"c": c}), dict(added={"bar": c}))
cm.assert_events(dict(changed="c", removed=["c.x"]), dict(changed=["bar"], added=["bar.x"]))
p["foo"] = c
dm.assert_events(dict(removed={"bar": c}), dict(added={"foo": c}))
cm.assert_events(dict(changed=["bar"], removed=["bar.x"]), dict(changed=["foo"], added=["foo.x"]))
p["c"] = 3
dm.assert_event(added={"c": 3})
cm.assert_event(changed="c")
p["c"] = c
dm.assert_events(dict(removed={"foo": c}), dict(changed={"c": 3}))
cm.assert_events(dict(changed=["foo"], removed=["foo.x"]), dict(changed="c", added=["c.x"]))
p["x"] = arange(3)
dm.assert_event(added={"x": arange(3)})
cm.assert_event(added="x")
p["x"] = c
dm.assert_events(dict(removed={"c": c}), dict(changed={"x": arange(3)}))
cm.assert_events(dict(changed="c", removed=["c.x"]), dict(removed="x", changed="x", added=["x.x"]))
### 'del' a dynamic binding:
del p["x"]
dm.assert_event(removed={"x": c})
cm.assert_event(changed="x", removed=["x.x"])
c.context_name = "c"
assert "c" not in p
dm.assert_events()
cm.assert_events()
p.update(c=3, x=arange(3), foo="foo")
dm.assert_event(added={"c": 3, "x": arange(3), "foo": "foo"})
cm.assert_event(added="x", changed=["c", "foo"])
### Clobber dynamic bindings
c.context_name = "b"
p.bind_dynamic(c, "context_name")
dm.assert_event(added={"b": c})
cm.assert_event(changed="b", added=["b.x"])
# If a dynamic binding tries to indirectly clobber a dictionary
# mapping, then we drop the dynamic binding entirely
c.context_name = "c"
dm.assert_event(removed={"b": c})
cm.assert_event(changed="b", removed=["b.x"])
assert_equal(c.context_name, "c")
# But new dictionary mappings are allowed to clobber dynamic bindings
c.context_name = "b"
p.bind_dynamic(c, "context_name")
dm.assert_event(added={"b": c})
cm.assert_event(changed="b", added=["b.x"])
p["b"] = 2
dm.assert_event(changed={"b": c})
cm.assert_event(changed="b", removed=["b.x"])
def test_deferred_events(self):
"Deferred events"
# Possible event combinations:
# 1. none + added
# 2. none + modified
# 3. none + removed
# 4. removed + added
# 5. added + modified
# 6. modified + modified
# 7. added + removed
# 8. modified + removed
# 9. none + changed
# 10. changed + changed
c = self.factory()
dm = DictModifiedEventMonitor(c)
cm = ContextModifiedEventMonitor(c)
c.update(a=1, x=arange(3), t=True)
dm.assert_event(added={"a": 1, "x": arange(3), "t": True})
c.defer_events = True
# 3. none + removed
c.clear()
# 4. removed + added
c.update(a=1, x=arange(3), t=True)
dm.assert_events()
cm.assert_events()
c.defer_events = False
dm.assert_event(changed={"x": arange(3)}) # Because `[1,2] is not [1,2]`
cm.assert_event(modified=["x"])
c.defer_events = True
# 1. none + added
c["y"] = -arange(3)
# 5. added + modified
c["y"] = 1 + arange(3)
# 2. none + modified
c["x"] = 1 + arange(3)
# 6. modified + modified
c["x"] = -arange(3)
# 9. none + changed
c["foo"] = "foo"
# 10. changed + changed
c["foo"] = "bar"
dm.assert_events()
cm.assert_events()
c.defer_events = False
dm.assert_event(added={"y": 1 + arange(3), "foo": "bar"}, changed={"x": arange(3)})
cm.assert_event(added=["y"], modified=["x"], changed=["foo"])
c.defer_events = True
# 1. none + added
c["z"] = arange(3)
# 7. added + removed
del c["z"]
# 2. none + modified
c["y"] = arange(3)
# 8. modified + removed
del c["y"]
dm.assert_events()
cm.assert_events()
c.defer_events = False
dm.assert_event(removed={"y": 1 + arange(3)})
cm.assert_event(removed=["y"])
# Something more normal looking
c.defer_events = True
c["n"] = array([-1, 0, 1])
for c["i"] in range(10):
c["n"] *= 2
del c["i"]
dm.assert_events()
cm.assert_events()
c.defer_events = False
dm.assert_event(added={"n": array([-1024, 0, 1024])})
cm.assert_event(added=["n"])
def test_deferred_events(self):
'Deferred events'
# Possible event combinations:
# 1. none + added
# 2. none + modified
# 3. none + removed
# 4. removed + added
# 5. added + modified
# 6. modified + modified
# 7. added + removed
# 8. modified + removed
# 9. none + changed
# 10. changed + changed
c = self.factory()
dm = DictModifiedEventMonitor(c)
cm = ContextModifiedEventMonitor(c)
c.update(a=1, x=arange(3), t=True)
dm.assert_event(added={'a':1, 'x':arange(3), 't':True})
c.defer_events = True
# 3. none + removed
c.clear()
# 4. removed + added
c.update(a=1, x=arange(3), t=True)
dm.assert_events()
cm.assert_events()
c.defer_events = False
dm.assert_event(changed={'x':arange(3)}) # Because `[1,2] is not [1,2]`
cm.assert_event(modified=['x'])
c.defer_events = True
# 1. none + added
c['y'] = -arange(3)
# 5. added + modified
c['y'] = 1+arange(3)
# 2. none + modified
c['x'] = 1+arange(3)
# 6. modified + modified
c['x'] = -arange(3)
# 9. none + changed
c['foo'] = 'foo'
# 10. changed + changed
c['foo'] = 'bar'
dm.assert_events()
cm.assert_events()
c.defer_events = False
dm.assert_event(added={'y':1+arange(3), 'foo':'bar'},
changed={'x':arange(3)})
cm.assert_event(added=['y'], modified=['x'],
changed=['foo'])
c.defer_events = True
# 1. none + added
c['z'] = arange(3)
# 7. added + removed
del c['z']
# 2. none + modified
c['y'] = arange(3)
# 8. modified + removed
del c['y']
dm.assert_events()
cm.assert_events()
c.defer_events = False
dm.assert_event(removed={'y':1+arange(3)})
cm.assert_event(removed=['y'])
# Something more normal looking
c.defer_events = True
c['n'] = array([-1, 0, 1])
for c['i'] in range(10):
c['n'] *= 2
del c['i']
dm.assert_events()
cm.assert_events()
c.defer_events = False
dm.assert_event(added={'n':array([-1024, 0, 1024])})
cm.assert_event(added=['n'])
def test_events_nested_contexts(self):
"Events: nested contexts"
### setitem (inside-out)
c1, c2, c3 = self.factory(), self.factory(), self.factory()
dm = DictModifiedEventMonitor(c1)
cm = ContextModifiedEventMonitor(c1)
c3["a"] = 1
c3["x"] = arange(3)
dm.assert_events()
cm.assert_events()
c2["a"] = 2
c2["x"] = arange(3)
c2["c3"] = c3
dm.assert_events()
cm.assert_events()
c1["a"] = 3
c1["x"] = 1 + arange(3)
c1["c2"] = c2
dm.assert_events(dict(added={"a": 3}), dict(added={"x": 1 + arange(3)}), dict(added={"c2": c2}))
cm.assert_events(dict(changed="a"), dict(added="x"), dict(changed=["c2"], added=["c2.x", "c2.c3.x"]))
### setitem (outside-in)
c1, c2, c3 = self.factory(), self.factory(), self.factory()
dm = DictModifiedEventMonitor(c1)
cm = ContextModifiedEventMonitor(c1)
c1["a"] = 3
c1["x"] = 1 + arange(3)
c1["c2"] = c2
dm.assert_events(dict(added={"a": 3}), dict(added={"x": 1 + arange(3)}), dict(added={"c2": c2}))
cm.assert_events(dict(changed="a"), dict(added="x"), dict(changed=["c2"]))
c2["a"] = 2
c2["x"] = arange(3)
c2["c3"] = c3
dm.assert_events()
cm.assert_event(added=["c2.x"])
c3["a"] = 1
c3["x"] = arange(3)
dm.assert_events()
cm.assert_event(added=["c2.c3.x"])
### update (inside-out)
c1, c2, c3 = self.factory(), self.factory(), self.factory()
dm = DictModifiedEventMonitor(c1)
cm = ContextModifiedEventMonitor(c1)
c3.update(a=1, x=arange(3))
dm.assert_events()
cm.assert_events()
c2.update(a=2, x=-arange(3), c3=c3)
dm.assert_events()
cm.assert_events()
c1.update(a=3, x=1 + arange(3), c2=c2)
dm.assert_event(added={"a": 3, "x": 1 + arange(3), "c2": c2})
cm.assert_event(added=["x", "c2.x", "c2.c3.x"], changed=["a", "c2"])
### update (outside-in)
c1, c2, c3 = self.factory(), self.factory(), self.factory()
dm = DictModifiedEventMonitor(c1)
cm = ContextModifiedEventMonitor(c1)
c1.update(a=3, x=1 + arange(3), c2=c2)
dm.assert_event(added={"a": 3, "x": 1 + arange(3), "c2": c2})
cm.assert_event(added="x", changed=["a", "c2"])
c2.update(a=2, x=-arange(3), c3=c3)
dm.assert_events()
cm.assert_event(added=["c2.x"])
c3.update(a=1, x=arange(3))
dm.assert_events()
cm.assert_event(added=["c2.c3.x"])
### Mutate
c1, c2, c3 = self.factory(), self.factory(), self.factory()
c3.update(a=1, l=[1], x=arange(3))
c2.update(a=2, l=[2], x=-arange(3), c3=c3)
c1.update(a=3, l=[3], x=1 + arange(3), c2=c2)
dm = DictModifiedEventMonitor(c1)
cm = ContextModifiedEventMonitor(c1)
c1["a"] += 3
dm.assert_event(changed={"a": 3})
cm.assert_event(changed="a")
c1["l"].append(0)
dm.assert_events()
cm.assert_events()
c1["x"] += 3
dm.assert_events()
cm.assert_events()
c1["x"] = c1["x"] + 3
dm.assert_event(changed={"x": 4 + arange(3)})
cm.assert_event(modified="x")
c2["a"] += 3
dm.assert_events()
cm.assert_events()
c2["l"].append(0)
dm.assert_events()
cm.assert_events()
c2["x"] += 3
dm.assert_events()
cm.assert_event(modified=["c2.x"])
c3["a"] += 3
dm.assert_events()
cm.assert_events()
c3["l"].append(0)
dm.assert_events()
cm.assert_events()
c3["x"] += 3
dm.assert_events()
cm.assert_event(modified=["c2.c3.x"])
### delitem (outside-in)
c1, c2, c3 = self.factory(), self.factory(), self.factory()
c3.update(a=1, x=arange(3))
c2.update(a=2, x=-arange(3), c3=c3)
c1.update(a=3, x=1 + arange(3), c2=c2)
dm = DictModifiedEventMonitor(c1)
cm = ContextModifiedEventMonitor(c1)
del c1["a"]
del c1["x"]
del c1["c2"]
dm.assert_events(dict(removed={"a": 3}), dict(removed={"x": 1 + arange(3)}), dict(removed={"c2": c2}))
cm.assert_events(dict(changed="a"), dict(removed="x"), dict(changed=["c2"], removed=["c2.x", "c2.c3.x"]))
del c2["a"]
del c2["x"]
del c2["c3"]
dm.assert_events()
cm.assert_events()
del c3["a"]
del c3["x"]
dm.assert_events()
cm.assert_events()
### delitem (inside-out)
c1, c2, c3 = self.factory(), self.factory(), self.factory()
c3.update(a=1, x=arange(3))
c2.update(a=2, x=-arange(3), c3=c3)
c1.update(a=3, x=1 + arange(3), c2=c2)
dm = DictModifiedEventMonitor(c1)
cm = ContextModifiedEventMonitor(c1)
del c3["a"]
del c3["x"]
dm.assert_events()
cm.assert_event(removed=["c2.c3.x"])
del c2["a"]
del c2["x"]
del c2["c3"]
dm.assert_events()
cm.assert_event(removed=["c2.x"])
del c1["a"]
del c1["x"]
del c1["c2"]
dm.assert_events(dict(removed={"a": 3}), dict(removed={"x": 1 + arange(3)}), dict(removed={"c2": c2}))
cm.assert_events(dict(changed="a"), dict(removed="x"), dict(changed=["c2"]))
### clear (outside-in)
c1, c2, c3 = self.factory(), self.factory(), self.factory()
c3.update(a=1, x=arange(3))
c2.update(a=2, x=-arange(3), c3=c3)
c1.update(a=3, x=1 + arange(3), c2=c2)
dm = DictModifiedEventMonitor(c1)
cm = ContextModifiedEventMonitor(c1)
c1.clear()
dm.assert_event(removed={"a": 3, "x": 1 + arange(3), "c2": c2})
cm.assert_event(changed=["a", "c2"], removed=["x", "c2.x", "c2.c3.x"])
c2.clear()
dm.assert_events()
cm.assert_events()
c3.clear()
dm.assert_events()
cm.assert_events()
### clear (inside-out)
c1, c2, c3 = self.factory(), self.factory(), self.factory()
c3.update(a=1, x=arange(3))
c2.update(a=2, x=-arange(3), c3=c3)
c1.update(a=3, x=1 + arange(3), c2=c2)
dm = DictModifiedEventMonitor(c1)
cm = ContextModifiedEventMonitor(c1)
c3.clear()
dm.assert_events()
cm.assert_event(removed=["c2.c3.x"])
c2.clear()
dm.assert_events()
cm.assert_event(removed=["c2.x"])
c1.clear()
dm.assert_event(removed={"a": 3, "x": 1 + arange(3), "c2": c2})
cm.assert_event(changed=["a", "c2"], removed="x")
def test_events_single_name(self):
"Events: single name"
c = self.factory()
dm = DictModifiedEventMonitor(c)
cm = ContextModifiedEventMonitor(c)
c["x"] = 1
dm.assert_event(added={"x": 1})
cm.assert_event(changed="x")
c["x"] = 1
dm.assert_events()
cm.assert_events()
c["x"] = "foo"
dm.assert_event(changed={"x": 1})
cm.assert_event(changed="x")
c["x"] = "foo"
dm.assert_events()
cm.assert_events()
del c["x"]
dm.assert_event(removed={"x": "foo"})
cm.assert_event(changed="x")
c["x"] = "foo"
dm.flush()
cm.flush()
c["x"] = arange(3)
dm.assert_event(changed={"x": "foo"})
cm.assert_event(added="x", changed="x")
c["x"] = arange(3) # This fires because 'arange(3) is not arange(3)'
dm.assert_event(changed={"x": arange(3)})
cm.assert_event(modified="x")
c["x"] = -arange(4)
dm.assert_event(changed={"x": arange(3)})
cm.assert_event(modified="x")
del c["x"]
dm.assert_event(removed={"x": -arange(4)})
cm.assert_event(removed="x")
c["x"] = arange(3)
dm.assert_event(added={"x": arange(3)})
cm.assert_event(added="x")
c["x"] = 3
dm.assert_event(changed={"x": arange(3)})
cm.assert_event(removed="x", changed="x")
def test_events_dynamic_binding(self):
'Events: dynamic binding'
# TODO Consolidate events
p = self.factory()
c = self.factory(context_name='c')
c['x'] = arange(3)
c['a'] = 8
dm = DictModifiedEventMonitor(p)
cm = ContextModifiedEventMonitor(p)
p.bind_dynamic(c, 'context_name')
dm.assert_event(added={'c':c})
cm.assert_event(changed='c', added=['c.x'])
c.context_name = 'bar'
dm.assert_events(dict(removed={'c':c}),
dict(added={'bar':c}))
cm.assert_events(dict(changed='c', removed=['c.x']),
dict(changed=['bar'], added=['bar.x']))
p['foo'] = c
dm.assert_events(dict(removed={'bar':c}),
dict(added={'foo':c}))
cm.assert_events(dict(changed=['bar'], removed=['bar.x']),
dict(changed=['foo'], added=['foo.x']))
p['c'] = 3
dm.assert_event(added={'c':3})
cm.assert_event(changed='c')
p['c'] = c
dm.assert_events(dict(removed={'foo':c}),
dict(changed={'c':3}))
cm.assert_events(dict(changed=['foo'], removed=['foo.x']),
dict(changed='c', added=['c.x']))
p['x'] = arange(3)
dm.assert_event(added={'x':arange(3)})
cm.assert_event(added='x')
p['x'] = c
dm.assert_events(dict(removed={'c':c}),
dict(changed={'x':arange(3)}))
cm.assert_events(dict(changed='c', removed=['c.x']),
dict(removed='x', changed='x', added=['x.x']))
### 'del' a dynamic binding:
del p['x']
dm.assert_event(removed={'x':c})
cm.assert_event(changed='x', removed=['x.x'])
c.context_name = 'c'
assert 'c' not in p
dm.assert_events()
cm.assert_events()
p.update(c=3, x=arange(3), foo='foo')
dm.assert_event(added={'c':3, 'x':arange(3), 'foo':'foo'})
cm.assert_event(added='x', changed=['c', 'foo'])
### Clobber dynamic bindings
c.context_name = 'b'
p.bind_dynamic(c, 'context_name')
dm.assert_event(added={'b':c})
cm.assert_event(changed='b', added=['b.x'])
# If a dynamic binding tries to indirectly clobber a dictionary
# mapping, then we drop the dynamic binding entirely
c.context_name = 'c'
dm.assert_event(removed={'b':c})
cm.assert_event(changed='b', removed=['b.x'])
assert_equal(c.context_name, 'c')
# But new dictionary mappings are allowed to clobber dynamic bindings
c.context_name = 'b'
p.bind_dynamic(c, 'context_name')
dm.assert_event(added={'b':c})
cm.assert_event(changed='b', added=['b.x'])
p['b'] = 2
dm.assert_event(changed={'b':c})
cm.assert_event(changed='b', removed=['b.x'])
def test_deferred_events(self):
'Deferred events'
# Possible event combinations:
# 1. none + added
# 2. none + modified
# 3. none + removed
# 4. removed + added
# 5. added + modified
# 6. modified + modified
# 7. added + removed
# 8. modified + removed
# 9. none + changed
# 10. changed + changed
c = self.factory()
dm = DictModifiedEventMonitor(c)
cm = ContextModifiedEventMonitor(c)
c.update(a=1, x=arange(3), t=True)
dm.assert_event(added={'a':1, 'x':arange(3), 't':True})
c.defer_events = True
# 3. none + removed
c.clear()
# 4. removed + added
c.update(a=1, x=arange(3), t=True)
dm.assert_events()
cm.assert_events()
c.defer_events = False
dm.assert_event(changed={'x':arange(3)}) # Because `[1,2] is not [1,2]`
cm.assert_event(modified=['x'])
c.defer_events = True
# 1. none + added
c['y'] = -arange(3)
# 5. added + modified
c['y'] = 1+arange(3)
# 2. none + modified
c['x'] = 1+arange(3)
# 6. modified + modified
c['x'] = -arange(3)
# 9. none + changed
c['foo'] = 'foo'
# 10. changed + changed
c['foo'] = 'bar'
dm.assert_events()
cm.assert_events()
c.defer_events = False
dm.assert_event(added={'y':1+arange(3), 'foo':'bar'},
changed={'x':arange(3)})
cm.assert_event(added=['y'], modified=['x'],
changed=['foo'])
c.defer_events = True
# 1. none + added
c['z'] = arange(3)
# 7. added + removed
del c['z']
# 2. none + modified
c['y'] = arange(3)
# 8. modified + removed
del c['y']
dm.assert_events()
cm.assert_events()
c.defer_events = False
dm.assert_event(removed={'y':1+arange(3)})
cm.assert_event(removed=['y'])
# Something more normal looking
c.defer_events = True
c['n'] = array([-1, 0, 1])
for c['i'] in range(10):
c['n'] *= 2
del c['i']
dm.assert_events()
cm.assert_events()
c.defer_events = False
dm.assert_event(added={'n':array([-1024, 0, 1024])})
cm.assert_event(added=['n'])
def test_events_nested_contexts(self):
'Events: nested contexts'
### setitem (inside-out)
c1,c2,c3 = self.factory(), self.factory(), self.factory()
dm = DictModifiedEventMonitor(c1)
cm = ContextModifiedEventMonitor(c1)
c3['a'] = 1
c3['x'] = arange(3)
dm.assert_events()
cm.assert_events()
c2['a'] = 2
c2['x'] = arange(3)
c2['c3'] = c3
dm.assert_events()
cm.assert_events()
c1['a'] = 3
c1['x'] = 1+arange(3)
c1['c2'] = c2
dm.assert_events(dict(added={'a':3}),
dict(added={'x':1+arange(3)}),
dict(added={'c2':c2}))
cm.assert_events(dict(changed='a'),
dict(added='x'),
dict(changed=['c2'], added=['c2.x', 'c2.c3.x']))
### setitem (outside-in)
c1,c2,c3 = self.factory(), self.factory(), self.factory()
dm = DictModifiedEventMonitor(c1)
cm = ContextModifiedEventMonitor(c1)
c1['a'] = 3
c1['x'] = 1+arange(3)
c1['c2'] = c2
dm.assert_events(dict(added={'a':3}),
dict(added={'x':1+arange(3)}),
dict(added={'c2':c2}))
cm.assert_events(dict(changed='a'),
dict(added='x'),
dict(changed=['c2']))
c2['a'] = 2
c2['x'] = arange(3)
c2['c3'] = c3
dm.assert_events()
cm.assert_event(added=['c2.x'])
c3['a'] = 1
c3['x'] = arange(3)
dm.assert_events()
cm.assert_event(added=['c2.c3.x'])
### update (inside-out)
c1,c2,c3 = self.factory(), self.factory(), self.factory()
dm = DictModifiedEventMonitor(c1)
cm = ContextModifiedEventMonitor(c1)
c3.update(a=1, x=arange(3))
dm.assert_events()
cm.assert_events()
c2.update(a=2, x=-arange(3), c3=c3)
dm.assert_events()
cm.assert_events()
c1.update(a=3, x=1+arange(3), c2=c2)
dm.assert_event(added={'a':3, 'x':1+arange(3), 'c2':c2})
cm.assert_event(added=['x', 'c2.x', 'c2.c3.x'], changed=['a', 'c2'])
### update (outside-in)
c1,c2,c3 = self.factory(), self.factory(), self.factory()
dm = DictModifiedEventMonitor(c1)
cm = ContextModifiedEventMonitor(c1)
c1.update(a=3, x=1+arange(3), c2=c2)
dm.assert_event(added={'a':3, 'x':1+arange(3), 'c2':c2})
cm.assert_event(added='x', changed=['a', 'c2'])
c2.update(a=2, x=-arange(3), c3=c3)
dm.assert_events()
cm.assert_event(added=['c2.x'])
c3.update(a=1, x=arange(3))
dm.assert_events()
cm.assert_event(added=['c2.c3.x'])
### Mutate
c1,c2,c3 = self.factory(), self.factory(), self.factory()
c3.update(a=1, l=[1], x=arange(3))
c2.update(a=2, l=[2], x=-arange(3), c3=c3)
c1.update(a=3, l=[3], x=1+arange(3), c2=c2)
dm = DictModifiedEventMonitor(c1)
cm = ContextModifiedEventMonitor(c1)
c1['a'] += 3
dm.assert_event(changed={'a':3})
cm.assert_event(changed='a')
c1['l'].append(0)
dm.assert_events()
cm.assert_events()
c1['x'] += 3
dm.assert_events()
cm.assert_events()
c1['x'] = c1['x'] + 3
dm.assert_event(changed={'x':4+arange(3)})
cm.assert_event(modified='x')
c2['a'] += 3
dm.assert_events()
cm.assert_events()
c2['l'].append(0)
dm.assert_events()
cm.assert_events()
c2['x'] += 3
dm.assert_events()
cm.assert_event(modified=['c2.x'])
c3['a'] += 3
dm.assert_events()
cm.assert_events()
c3['l'].append(0)
dm.assert_events()
cm.assert_events()
c3['x'] += 3
dm.assert_events()
cm.assert_event(modified=['c2.c3.x'])
### delitem (outside-in)
c1,c2,c3 = self.factory(), self.factory(), self.factory()
c3.update(a=1, x=arange(3))
c2.update(a=2, x=-arange(3), c3=c3)
c1.update(a=3, x=1+arange(3), c2=c2)
dm = DictModifiedEventMonitor(c1)
cm = ContextModifiedEventMonitor(c1)
del c1['a']
del c1['x']
del c1['c2']
dm.assert_events(dict(removed={'a':3}),
dict(removed={'x':1+arange(3)}),
dict(removed={'c2':c2}))
cm.assert_events(dict(changed='a'),
dict(removed='x'),
dict(changed=['c2'], removed=['c2.x', 'c2.c3.x']))
del c2['a']
del c2['x']
del c2['c3']
dm.assert_events()
cm.assert_events()
del c3['a']
del c3['x']
dm.assert_events()
cm.assert_events()
### delitem (inside-out)
c1,c2,c3 = self.factory(), self.factory(), self.factory()
c3.update(a=1, x=arange(3))
c2.update(a=2, x=-arange(3), c3=c3)
c1.update(a=3, x=1+arange(3), c2=c2)
dm = DictModifiedEventMonitor(c1)
cm = ContextModifiedEventMonitor(c1)
del c3['a']
del c3['x']
dm.assert_events()
cm.assert_event(removed=['c2.c3.x'])
del c2['a']
del c2['x']
del c2['c3']
dm.assert_events()
cm.assert_event(removed=['c2.x'])
del c1['a']
del c1['x']
del c1['c2']
dm.assert_events(dict(removed={'a':3}),
dict(removed={'x':1+arange(3)}),
dict(removed={'c2':c2}))
cm.assert_events(dict(changed='a'),
dict(removed='x'),
dict(changed=['c2']))
### clear (outside-in)
c1,c2,c3 = self.factory(), self.factory(), self.factory()
c3.update(a=1, x=arange(3))
c2.update(a=2, x=-arange(3), c3=c3)
c1.update(a=3, x=1+arange(3), c2=c2)
dm = DictModifiedEventMonitor(c1)
cm = ContextModifiedEventMonitor(c1)
c1.clear()
dm.assert_event(removed={'a':3, 'x':1+arange(3), 'c2':c2})
cm.assert_event(changed=['a', 'c2'], removed=['x', 'c2.x', 'c2.c3.x'])
c2.clear()
dm.assert_events()
cm.assert_events()
c3.clear()
dm.assert_events()
cm.assert_events()
### clear (inside-out)
c1,c2,c3 = self.factory(), self.factory(), self.factory()
c3.update(a=1, x=arange(3))
c2.update(a=2, x=-arange(3), c3=c3)
c1.update(a=3, x=1+arange(3), c2=c2)
dm = DictModifiedEventMonitor(c1)
cm = ContextModifiedEventMonitor(c1)
c3.clear()
dm.assert_events()
cm.assert_event(removed=['c2.c3.x'])
c2.clear()
dm.assert_events()
cm.assert_event(removed=['c2.x'])
c1.clear()
dm.assert_event(removed={'a':3, 'x':1+arange(3), 'c2':c2})
cm.assert_event(changed=['a', 'c2'], removed='x')
def test_events_single_name(self):
'Events: single name'
c = self.factory()
dm = DictModifiedEventMonitor(c)
cm = ContextModifiedEventMonitor(c)
c['x'] = 1
dm.assert_event(added={'x':1})
cm.assert_event(changed='x')
c['x'] = 1
dm.assert_events()
cm.assert_events()
c['x'] = 'foo'
dm.assert_event(changed={'x':1})
cm.assert_event(changed='x')
c['x'] = 'foo'
dm.assert_events()
cm.assert_events()
del c['x']
dm.assert_event(removed={'x':'foo'})
cm.assert_event(changed='x')
c['x'] = 'foo'
dm.flush();
cm.flush()
c['x'] = arange(3)
dm.assert_event(changed={'x':'foo'})
cm.assert_event(added='x', changed='x')
c['x'] = arange(3) # This fires because 'arange(3) is not arange(3)'
dm.assert_event(changed={'x':arange(3)})
cm.assert_event(modified='x')
c['x'] = -arange(4)
dm.assert_event(changed={'x':arange(3)})
cm.assert_event(modified='x')
del c['x']
dm.assert_event(removed={'x':-arange(4)})
cm.assert_event(removed='x')
c['x'] = arange(3)
dm.assert_event(added={'x':arange(3)})
cm.assert_event(added='x')
c['x'] = 3
dm.assert_event(changed={'x':arange(3)})
cm.assert_event(removed='x', changed='x')
def test_events_nested_contexts(self):
'Events: nested contexts'
### setitem (inside-out)
c1,c2,c3 = self.factory(), self.factory(), self.factory()
dm = DictModifiedEventMonitor(c1)
cm = ContextModifiedEventMonitor(c1)
c3['a'] = 1
c3['x'] = arange(3)
dm.assert_events()
cm.assert_events()
c2['a'] = 2
c2['x'] = arange(3)
c2['c3'] = c3
dm.assert_events()
cm.assert_events()
c1['a'] = 3
c1['x'] = 1+arange(3)
c1['c2'] = c2
dm.assert_events(dict(added={'a':3}),
dict(added={'x':1+arange(3)}),
dict(added={'c2':c2}))
cm.assert_events(dict(changed='a'),
dict(added='x'),
dict(changed=['c2'], added=['c2.x', 'c2.c3.x']))
### setitem (outside-in)
c1,c2,c3 = self.factory(), self.factory(), self.factory()
dm = DictModifiedEventMonitor(c1)
cm = ContextModifiedEventMonitor(c1)
c1['a'] = 3
c1['x'] = 1+arange(3)
c1['c2'] = c2
dm.assert_events(dict(added={'a':3}),
dict(added={'x':1+arange(3)}),
dict(added={'c2':c2}))
cm.assert_events(dict(changed='a'),
dict(added='x'),
dict(changed=['c2']))
c2['a'] = 2
c2['x'] = arange(3)
c2['c3'] = c3
dm.assert_events()
cm.assert_event(added=['c2.x'])
c3['a'] = 1
c3['x'] = arange(3)
dm.assert_events()
cm.assert_event(added=['c2.c3.x'])
### update (inside-out)
c1,c2,c3 = self.factory(), self.factory(), self.factory()
dm = DictModifiedEventMonitor(c1)
cm = ContextModifiedEventMonitor(c1)
c3.update(a=1, x=arange(3))
dm.assert_events()
cm.assert_events()
c2.update(a=2, x=-arange(3), c3=c3)
dm.assert_events()
cm.assert_events()
c1.update(a=3, x=1+arange(3), c2=c2)
dm.assert_event(added={'a':3, 'x':1+arange(3), 'c2':c2})
cm.assert_event(added=['x', 'c2.x', 'c2.c3.x'], changed=['a', 'c2'])
### update (outside-in)
c1,c2,c3 = self.factory(), self.factory(), self.factory()
dm = DictModifiedEventMonitor(c1)
cm = ContextModifiedEventMonitor(c1)
c1.update(a=3, x=1+arange(3), c2=c2)
dm.assert_event(added={'a':3, 'x':1+arange(3), 'c2':c2})
cm.assert_event(added='x', changed=['a', 'c2'])
c2.update(a=2, x=-arange(3), c3=c3)
dm.assert_events()
cm.assert_event(added=['c2.x'])
c3.update(a=1, x=arange(3))
dm.assert_events()
cm.assert_event(added=['c2.c3.x'])
### Mutate
c1,c2,c3 = self.factory(), self.factory(), self.factory()
c3.update(a=1, l=[1], x=arange(3))
c2.update(a=2, l=[2], x=-arange(3), c3=c3)
c1.update(a=3, l=[3], x=1+arange(3), c2=c2)
dm = DictModifiedEventMonitor(c1)
cm = ContextModifiedEventMonitor(c1)
c1['a'] += 3
dm.assert_event(changed={'a':3})
cm.assert_event(changed='a')
c1['l'].append(0)
dm.assert_events()
cm.assert_events()
c1['x'] += 3
dm.assert_events()
cm.assert_events()
c1['x'] = c1['x'] + 3
dm.assert_event(changed={'x':4+arange(3)})
cm.assert_event(modified='x')
c2['a'] += 3
dm.assert_events()
cm.assert_events()
c2['l'].append(0)
dm.assert_events()
cm.assert_events()
c2['x'] += 3
dm.assert_events()
cm.assert_event(modified=['c2.x'])
c3['a'] += 3
dm.assert_events()
cm.assert_events()
c3['l'].append(0)
dm.assert_events()
cm.assert_events()
c3['x'] += 3
dm.assert_events()
cm.assert_event(modified=['c2.c3.x'])
### delitem (outside-in)
c1,c2,c3 = self.factory(), self.factory(), self.factory()
c3.update(a=1, x=arange(3))
c2.update(a=2, x=-arange(3), c3=c3)
c1.update(a=3, x=1+arange(3), c2=c2)
dm = DictModifiedEventMonitor(c1)
cm = ContextModifiedEventMonitor(c1)
del c1['a']
del c1['x']
del c1['c2']
dm.assert_events(dict(removed={'a':3}),
dict(removed={'x':1+arange(3)}),
dict(removed={'c2':c2}))
cm.assert_events(dict(changed='a'),
dict(removed='x'),
dict(changed=['c2'], removed=['c2.x', 'c2.c3.x']))
del c2['a']
del c2['x']
del c2['c3']
dm.assert_events()
cm.assert_events()
del c3['a']
del c3['x']
dm.assert_events()
cm.assert_events()
### delitem (inside-out)
c1,c2,c3 = self.factory(), self.factory(), self.factory()
c3.update(a=1, x=arange(3))
c2.update(a=2, x=-arange(3), c3=c3)
c1.update(a=3, x=1+arange(3), c2=c2)
dm = DictModifiedEventMonitor(c1)
cm = ContextModifiedEventMonitor(c1)
del c3['a']
del c3['x']
dm.assert_events()
cm.assert_event(removed=['c2.c3.x'])
del c2['a']
del c2['x']
del c2['c3']
dm.assert_events()
cm.assert_event(removed=['c2.x'])
del c1['a']
del c1['x']
del c1['c2']
dm.assert_events(dict(removed={'a':3}),
dict(removed={'x':1+arange(3)}),
dict(removed={'c2':c2}))
cm.assert_events(dict(changed='a'),
dict(removed='x'),
dict(changed=['c2']))
### clear (outside-in)
c1,c2,c3 = self.factory(), self.factory(), self.factory()
c3.update(a=1, x=arange(3))
c2.update(a=2, x=-arange(3), c3=c3)
c1.update(a=3, x=1+arange(3), c2=c2)
dm = DictModifiedEventMonitor(c1)
cm = ContextModifiedEventMonitor(c1)
c1.clear()
dm.assert_event(removed={'a':3, 'x':1+arange(3), 'c2':c2})
cm.assert_event(changed=['a', 'c2'], removed=['x', 'c2.x', 'c2.c3.x'])
c2.clear()
dm.assert_events()
cm.assert_events()
c3.clear()
dm.assert_events()
cm.assert_events()
### clear (inside-out)
c1,c2,c3 = self.factory(), self.factory(), self.factory()
c3.update(a=1, x=arange(3))
c2.update(a=2, x=-arange(3), c3=c3)
c1.update(a=3, x=1+arange(3), c2=c2)
dm = DictModifiedEventMonitor(c1)
cm = ContextModifiedEventMonitor(c1)
c3.clear()
dm.assert_events()
cm.assert_event(removed=['c2.c3.x'])
c2.clear()
dm.assert_events()
cm.assert_event(removed=['c2.x'])
c1.clear()
dm.assert_event(removed={'a':3, 'x':1+arange(3), 'c2':c2})
cm.assert_event(changed=['a', 'c2'], removed='x')
def test_events_single_name(self):
'Events: single name'
c = self.factory()
dm = DictModifiedEventMonitor(c)
cm = ContextModifiedEventMonitor(c)
c['x'] = 1
dm.assert_event(added={'x':1})
cm.assert_event(changed='x')
c['x'] = 1
dm.assert_events()
cm.assert_events()
c['x'] = 'foo'
dm.assert_event(changed={'x':1})
cm.assert_event(changed='x')
c['x'] = 'foo'
dm.assert_events()
cm.assert_events()
del c['x']
dm.assert_event(removed={'x':'foo'})
cm.assert_event(changed='x')
c['x'] = 'foo'
dm.flush();
cm.flush()
c['x'] = arange(3)
dm.assert_event(changed={'x':'foo'})
cm.assert_event(added='x', changed='x')
c['x'] = arange(3) # This fires because 'arange(3) is not arange(3)'
dm.assert_event(changed={'x':arange(3)})
cm.assert_event(modified='x')
c['x'] = -arange(4)
dm.assert_event(changed={'x':arange(3)})
cm.assert_event(modified='x')
del c['x']
dm.assert_event(removed={'x':-arange(4)})
cm.assert_event(removed='x')
c['x'] = arange(3)
dm.assert_event(added={'x':arange(3)})
cm.assert_event(added='x')
c['x'] = 3
dm.assert_event(changed={'x':arange(3)})
cm.assert_event(removed='x', changed='x')
def test_events_dynamic_binding(self):
'Events: dynamic binding'
# TODO Consolidate events
p = self.factory()
c = self.factory(context_name='c')
c['x'] = arange(3)
c['a'] = 8
dm = DictModifiedEventMonitor(p)
cm = ContextModifiedEventMonitor(p)
p.bind_dynamic(c, 'context_name')
dm.assert_event(added={'c':c})
cm.assert_event(changed='c', added=['c.x'])
c.context_name = 'bar'
dm.assert_events(dict(removed={'c':c}),
dict(added={'bar':c}))
cm.assert_events(dict(changed='c', removed=['c.x']),
dict(changed=['bar'], added=['bar.x']))
p['foo'] = c
dm.assert_events(dict(removed={'bar':c}),
dict(added={'foo':c}))
cm.assert_events(dict(changed=['bar'], removed=['bar.x']),
dict(changed=['foo'], added=['foo.x']))
p['c'] = 3
dm.assert_event(added={'c':3})
cm.assert_event(changed='c')
p['c'] = c
dm.assert_events(dict(removed={'foo':c}),
dict(changed={'c':3}))
cm.assert_events(dict(changed=['foo'], removed=['foo.x']),
dict(changed='c', added=['c.x']))
p['x'] = arange(3)
dm.assert_event(added={'x':arange(3)})
cm.assert_event(added='x')
p['x'] = c
dm.assert_events(dict(removed={'c':c}),
dict(changed={'x':arange(3)}))
cm.assert_events(dict(changed='c', removed=['c.x']),
dict(removed='x', changed='x', added=['x.x']))
### 'del' a dynamic binding:
del p['x']
dm.assert_event(removed={'x':c})
cm.assert_event(changed='x', removed=['x.x'])
c.context_name = 'c'
assert 'c' not in p
dm.assert_events()
cm.assert_events()
p.update(c=3, x=arange(3), foo='foo')
dm.assert_event(added={'c':3, 'x':arange(3), 'foo':'foo'})
cm.assert_event(added='x', changed=['c', 'foo'])
### Clobber dynamic bindings
c.context_name = 'b'
p.bind_dynamic(c, 'context_name')
dm.assert_event(added={'b':c})
cm.assert_event(changed='b', added=['b.x'])
# If a dynamic binding tries to indirectly clobber a dictionary
# mapping, then we drop the dynamic binding entirely
c.context_name = 'c'
dm.assert_event(removed={'b':c})
cm.assert_event(changed='b', removed=['b.x'])
assert_equal(c.context_name, 'c')
# But new dictionary mappings are allowed to clobber dynamic bindings
c.context_name = 'b'
p.bind_dynamic(c, 'context_name')
dm.assert_event(added={'b':c})
cm.assert_event(changed='b', added=['b.x'])
p['b'] = 2
dm.assert_event(changed={'b':c})
cm.assert_event(changed='b', removed=['b.x'])