dom/bindings/parser/tests/test_bytestring.py

   1 # -*- coding: UTF-8 -*-
   2
   3 import WebIDL
   4
   5
   6 def WebIDLTest(parser, harness):
   7     parser.parse(
   8         """
   9         interface TestByteString {
  10           attribute ByteString bs;
  11           attribute DOMString ds;
  12           };
  13     """
  14     )
  15
  16     results = parser.finish()
  17
  18     harness.ok(True, "TestByteString interface parsed without error.")
  19
  20     harness.check(len(results), 1, "Should be one production")
  21     harness.ok(isinstance(results[0], WebIDL.IDLInterface), "Should be an IDLInterface")
  22     iface = results[0]
  23     harness.check(
  24         iface.identifier.QName(), "::TestByteString", "Interface has the right QName"
  25     )
  26     harness.check(
  27         iface.identifier.name, "TestByteString", "Interface has the right name"
  28     )
  29     harness.check(iface.parent, None, "Interface has no parent")
  30
  31     members = iface.members
  32     harness.check(len(members), 2, "Should be two productions")
  33
  34     attr = members[0]
  35     harness.ok(isinstance(attr, WebIDL.IDLAttribute), "Should be an IDLAttribute")
  36     harness.check(
  37         attr.identifier.QName(), "::TestByteString::bs", "Attr has correct QName"
  38     )
  39     harness.check(attr.identifier.name, "bs", "Attr has correct name")
  40     harness.check(str(attr.type), "ByteString", "Attr type is the correct name")
  41     harness.ok(attr.type.isByteString(), "Should be ByteString type")
  42     harness.ok(attr.type.isString(), "Should be String collective type")
  43     harness.ok(not attr.type.isDOMString(), "Should be not be DOMString type")
  44
  45     # now check we haven't broken DOMStrings in the process.
  46     attr = members[1]
  47     harness.ok(isinstance(attr, WebIDL.IDLAttribute), "Should be an IDLAttribute")
  48     harness.check(
  49         attr.identifier.QName(), "::TestByteString::ds", "Attr has correct QName"
  50     )
  51     harness.check(attr.identifier.name, "ds", "Attr has correct name")
  52     harness.check(str(attr.type), "String", "Attr type is the correct name")
  53     harness.ok(attr.type.isDOMString(), "Should be DOMString type")
  54     harness.ok(attr.type.isString(), "Should be String collective type")
  55     harness.ok(not attr.type.isByteString(), "Should be not be ByteString type")
  56
  57     # Cannot represent constant ByteString in IDL.
  58     threw = False
  59     try:
  60         parser.parse(
  61             """
  62             interface ConstByteString {
  63               const ByteString foo = "hello"
  64               };
  65         """
  66         )
  67     except WebIDL.WebIDLError:
  68         threw = True
  69     harness.ok(
  70         threw, "Should have thrown a WebIDL error for ByteString default in interface"
  71     )
  72
  73     # Can have optional ByteStrings with default values
  74     try:
  75         parser.parse(
  76             """
  77             interface OptionalByteString {
  78               undefined passByteString(optional ByteString arg = "hello");
  79               };
  80         """
  81         )
  82         parser.finish()
  83     except WebIDL.WebIDLError as e:
  84         harness.ok(
  85             False,
  86             "Should not have thrown a WebIDL error for ByteString "
  87             "default in dictionary. " + str(e),
  88         )
  89
  90     # Can have a default ByteString value in a dictionary
  91     try:
  92         parser.parse(
  93             """
  94         dictionary OptionalByteStringDict {
  95           ByteString item = "some string";
  96         };
  97         """
  98         )
  99         parser.finish()
 100     except WebIDL.WebIDLError as e:
 101         harness.ok(
 102             False,
 103             "Should not have thrown a WebIDL error for ByteString "
 104             "default in dictionary. " + str(e),
 105         )
 106
 107     # Don't allow control characters in ByteString literals
 108     threw = False
 109     try:
 110         parser.parse(
 111             """
 112         dictionary OptionalByteStringDict2 {
 113           ByteString item = "\x03";
 114         };
 115         """
 116         )
 117         parser.finish()
 118     except WebIDL.WebIDLError:
 119         threw = True
 120
 121     harness.ok(
 122         threw,
 123         "Should have thrown a WebIDL error for invalid ByteString "
 124         "default in dictionary",
 125     )