dom/bindings/parser/tests/test_callback.py

   1 import WebIDL
   2
   3
   4 def WebIDLTest(parser, harness):
   5     parser.parse(
   6         """
   7         interface TestCallback {
   8           attribute CallbackType? listener;
   9         };
  10
  11         callback CallbackType = boolean (unsigned long arg);
  12     """
  13     )
  14
  15     results = parser.finish()
  16
  17     harness.ok(True, "TestCallback interface parsed without error.")
  18     harness.check(len(results), 2, "Should be two productions.")
  19     iface = results[0]
  20     harness.ok(isinstance(iface, WebIDL.IDLInterface), "Should be an IDLInterface")
  21     harness.check(
  22         iface.identifier.QName(), "::TestCallback", "Interface has the right QName"
  23     )
  24     harness.check(iface.identifier.name, "TestCallback", "Interface has the right name")
  25     harness.check(len(iface.members), 1, "Expect %s members" % 1)
  26
  27     attr = iface.members[0]
  28     harness.ok(isinstance(attr, WebIDL.IDLAttribute), "Should be an IDLAttribute")
  29     harness.ok(attr.isAttr(), "Should be an attribute")
  30     harness.ok(not attr.isMethod(), "Attr is not an method")
  31     harness.ok(not attr.isConst(), "Attr is not a const")
  32     harness.check(
  33         attr.identifier.QName(), "::TestCallback::listener", "Attr has the right QName"
  34     )
  35     harness.check(attr.identifier.name, "listener", "Attr has the right name")
  36     t = attr.type
  37     harness.ok(not isinstance(t, WebIDL.IDLWrapperType), "Attr has the right type")
  38     harness.ok(isinstance(t, WebIDL.IDLNullableType), "Attr has the right type")
  39     harness.ok(t.isCallback(), "Attr has the right type")
  40
  41     callback = results[1]
  42     harness.ok(not callback.isConstructor(), "callback is not constructor")