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from dbus_next import introspection as intr, ArgDirection, PropertyAccess, SignatureType
import os
example_data = open(f'{os.path.dirname(__file__)}/data/introspection.xml', 'r').read()
def test_example_introspection_from_xml():
node = intr.Node.parse(example_data)
assert len(node.interfaces) == 1
interface = node.interfaces[0]
assert len(node.nodes) == 2
assert len(interface.methods) == 3
assert len(interface.signals) == 2
assert len(interface.properties) == 1
assert type(node.nodes[0]) is intr.Node
assert node.nodes[0].name == 'child_of_sample_object'
assert type(node.nodes[1]) is intr.Node
assert node.nodes[1].name == 'another_child_of_sample_object'
assert interface.name == 'com.example.SampleInterface0'
frobate = interface.methods[0]
assert type(frobate) is intr.Method
assert frobate.name == 'Frobate'
assert len(frobate.in_args) == 1
assert len(frobate.out_args) == 2
foo = frobate.in_args[0]
assert type(foo) is intr.Arg
assert foo.name == 'foo'
assert foo.direction == ArgDirection.IN
assert foo.signature == 'i'
assert type(foo.type) is SignatureType
assert foo.type.token == 'i'
bar = frobate.out_args[0]
assert type(bar) is intr.Arg
assert bar.name == 'bar'
assert bar.direction == ArgDirection.OUT
assert bar.signature == 's'
assert type(bar.type) is SignatureType
assert bar.type.token == 's'
prop = interface.properties[0]
assert type(prop) is intr.Property
assert prop.name == 'Bar'
assert prop.signature == 'y'
assert type(prop.type) is SignatureType
assert prop.type.token == 'y'
assert prop.access == PropertyAccess.WRITE
changed = interface.signals[0]
assert type(changed) is intr.Signal
assert changed.name == 'Changed'
assert len(changed.args) == 1
new_value = changed.args[0]
assert type(new_value) is intr.Arg
assert new_value.name == 'new_value'
assert new_value.signature == 'b'
def test_example_introspection_to_xml():
node = intr.Node.parse(example_data)
tree = node.to_xml()
assert tree.tag == 'node'
assert tree.attrib.get('name') == '/com/example/sample_object0'
assert len(tree) == 3
interface = tree[0]
assert interface.tag == 'interface'
assert interface.get('name') == 'com.example.SampleInterface0'
assert len(interface) == 6
method = interface[0]
assert method.tag == 'method'
assert method.get('name') == 'Frobate'
# TODO annotations
assert len(method) == 3
arg = method[0]
assert arg.tag == 'arg'
assert arg.attrib.get('name') == 'foo'
assert arg.attrib.get('type') == 'i'
assert arg.attrib.get('direction') == 'in'
signal = interface[3]
assert signal.tag == 'signal'
assert signal.attrib.get('name') == 'Changed'
assert len(signal) == 1
arg = signal[0]
assert arg.tag == 'arg'
assert arg.attrib.get('name') == 'new_value'
assert arg.attrib.get('type') == 'b'
signal = interface[4]
assert signal.tag == 'signal'
assert signal.attrib.get('name') == 'ChangedMulti'
assert len(signal) == 2
arg = signal[0]
assert arg.tag == 'arg'
assert arg.attrib.get('name') == 'new_value1'
assert arg.attrib.get('type') == 'b'
arg = signal[1]
assert arg.tag == 'arg'
assert arg.attrib.get('name') == 'new_value2'
assert arg.attrib.get('type') == 'y'
prop = interface[5]
assert prop.attrib.get('name') == 'Bar'
assert prop.attrib.get('type') == 'y'
assert prop.attrib.get('access') == 'write'
def test_default_interfaces():
# just make sure it doesn't throw
default = intr.Node.default()
assert type(default) is intr.Node
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