Mojo: Move mojo/public/bindings to mojo/public/tools/bindings.

mojo/public/bindings/pylib/parse/mojo_parser_unittest.py

-# Copyright 2014 The Chromium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-import mojo_lexer
-import mojo_parser
-import unittest
-
-
-class MojoParserTest(unittest.TestCase):
-  """Tests mojo_parser (in particular, Parse())."""
-
-  def testTrivialValidSource(self):
-    """Tests a trivial, but valid, .mojom source."""
-    source = """\
-// This is a comment.
-
-module my_module {
-}
-"""
-    self.assertEquals(mojo_parser.Parse(source, "my_file.mojom"),
-                      [("MODULE", "my_module", None)])
-
-  def testSourceWithCrLfs(self):
-    """Tests a .mojom source with CR-LFs instead of LFs."""
-    source = "// This is a comment.\r\n\r\nmodule my_module {\r\n}\r\n";
-    self.assertEquals(mojo_parser.Parse(source, "my_file.mojom"),
-                      [("MODULE", "my_module", None)])
-
-  def testUnexpectedEOF(self):
-    """Tests a "truncated" .mojom source."""
-    source = """\
-// This is a comment.
-
-module my_module {
-"""
-    with self.assertRaisesRegexp(
-        mojo_parser.ParseError,
-        r"^my_file\.mojom: Error: Unexpected end of file$"):
-      mojo_parser.Parse(source, "my_file.mojom")
-
-  def testSimpleStruct(self):
-    """Tests a simple .mojom source that just defines a struct."""
-    source ="""\
-module my_module {
-
-struct MyStruct {
-  int32 a;
-  double b;
-};
-
-}  // module my_module
-"""
-    # Note: Output as pretty-printed on failure by the test harness.
-    expected = \
-[('MODULE',
-  'my_module',
-  [('STRUCT',
-    'MyStruct',
-    None,
-    [('FIELD', 'int32', 'a', None, None),
-     ('FIELD', 'double', 'b', None, None)])])]
-    self.assertEquals(mojo_parser.Parse(source, "my_file.mojom"), expected)
-
-  def testEnumExpressions(self):
-    """Tests an enum with values calculated using simple expressions."""
-    source = """\
-module my_module {
-
-enum MyEnum {
-  MY_ENUM_1 = 1,
-  MY_ENUM_2 = 1 + 1,
-  MY_ENUM_3 = 1 * 3,
-  MY_ENUM_4 = 2 * (1 + 1),
-  MY_ENUM_5 = 1 + 2 * 2,
-  MY_ENUM_6 = -6 / -2,
-  MY_ENUM_7 = 3 | (1 << 2),
-  MY_ENUM_8 = 16 >> 1,
-  MY_ENUM_9 = 1 ^ 15 & 8,
-  MY_ENUM_10 = 110 % 100,
-  MY_ENUM_MINUS_1 = ~0
-};
-
-}  // my_module
-"""
-    expected = \
-[('MODULE',
-  'my_module',
-  [('ENUM',
-    'MyEnum',
-    [('ENUM_FIELD', 'MY_ENUM_1', ('EXPRESSION', ['1'])),
-     ('ENUM_FIELD', 'MY_ENUM_2', ('EXPRESSION', ['1', '+', '1'])),
-     ('ENUM_FIELD', 'MY_ENUM_3', ('EXPRESSION', ['1', '*', '3'])),
-     ('ENUM_FIELD',
-      'MY_ENUM_4',
-      ('EXPRESSION',
-       ['2', '*', '(', ('EXPRESSION', ['1', '+', '1']), ')'])),
-     ('ENUM_FIELD',
-      'MY_ENUM_5',
-      ('EXPRESSION', ['1', '+', '2', '*', '2'])),
-     ('ENUM_FIELD',
-      'MY_ENUM_6',
-      ('EXPRESSION',
-       ['-', ('EXPRESSION', ['6', '/', '-', ('EXPRESSION', ['2'])])])),
-     ('ENUM_FIELD',
-      'MY_ENUM_7',
-      ('EXPRESSION',
-       ['3', '|', '(', ('EXPRESSION', ['1', '<<', '2']), ')'])),
-     ('ENUM_FIELD', 'MY_ENUM_8', ('EXPRESSION', ['16', '>>', '1'])),
-     ('ENUM_FIELD',
-      'MY_ENUM_9',
-      ('EXPRESSION', ['1', '^', '15', '&', '8'])),
-     ('ENUM_FIELD', 'MY_ENUM_10', ('EXPRESSION', ['110', '%', '100'])),
-     ('ENUM_FIELD',
-      'MY_ENUM_MINUS_1',
-      ('EXPRESSION', ['~', ('EXPRESSION', ['0'])]))])])]
-    self.assertEquals(mojo_parser.Parse(source, "my_file.mojom"), expected)
-
-  def testNoConditionals(self):
-    """Tests that ?: is not allowed."""
-    source = """\
-module my_module {
-
-enum MyEnum {
-  MY_ENUM_1 = 1 ? 2 : 3
-};
-
-}  // my_module
-"""
-    with self.assertRaisesRegexp(
-        mojo_lexer.LexError,
-        r"^my_file\.mojom:4: Error: Illegal character '\?'$"):
-      mojo_parser.Parse(source, "my_file.mojom")
-
-  def testSimpleOrdinals(self):
-    """Tests that (valid) ordinal values are scanned correctly."""
-    source = """\
-module my_module {
-
-// This isn't actually valid .mojom, but the problem (missing ordinals) should
-// be handled at a different level.
-struct MyStruct {
-  int32 a0 @0;
-  int32 a1 @1;
-  int32 a2 @2;
-  int32 a9 @9;
-  int32 a10 @10;
-  int32 a11 @11;
-  int32 a29 @29;
-  int32 a1234567890 @1234567890;
-};
-
-}  // module my_module
-"""
-    expected = \
-[('MODULE',
-  'my_module',
-  [('STRUCT',
-    'MyStruct',
-    None,
-    [('FIELD', 'int32', 'a0', '@0', None),
-     ('FIELD', 'int32', 'a1', '@1', None),
-     ('FIELD', 'int32', 'a2', '@2', None),
-     ('FIELD', 'int32', 'a9', '@9', None),
-     ('FIELD', 'int32', 'a10', '@10', None),
-     ('FIELD', 'int32', 'a11', '@11', None),
-     ('FIELD', 'int32', 'a29', '@29', None),
-     ('FIELD', 'int32', 'a1234567890', '@1234567890', None)])])]
-    self.assertEquals(mojo_parser.Parse(source, "my_file.mojom"), expected)
-
-  def testInvalidOrdinals(self):
-    """Tests that (lexically) invalid ordinals are correctly detected."""
-    source1 = """\
-module my_module {
-
-struct MyStruct {
-  int32 a_missing @;
-};
-
-}  // module my_module
-"""
-    with self.assertRaisesRegexp(
-        mojo_lexer.LexError,
-        r"^my_file\.mojom:4: Error: Missing ordinal value$"):
-      mojo_parser.Parse(source1, "my_file.mojom")
-
-    source2 = """\
-module my_module {
-
-struct MyStruct {
-  int32 a_octal @01;
-};
-
-}  // module my_module
-"""
-    with self.assertRaisesRegexp(
-        mojo_lexer.LexError,
-        r"^my_file\.mojom:4: Error: "
-            r"Octal and hexadecimal ordinal values not allowed$"):
-      mojo_parser.Parse(source2, "my_file.mojom")
-
-    source3 = """\
-module my_module { struct MyStruct { int32 a_invalid_octal @08; }; }
-"""
-    with self.assertRaisesRegexp(
-        mojo_lexer.LexError,
-        r"^my_file\.mojom:1: Error: "
-            r"Octal and hexadecimal ordinal values not allowed$"):
-      mojo_parser.Parse(source3, "my_file.mojom")
-
-    source4 = """\
-module my_module { struct MyStruct { int32 a_hex @0x1aB9; }; }
-"""
-    with self.assertRaisesRegexp(
-        mojo_lexer.LexError,
-        r"^my_file\.mojom:1: Error: "
-            r"Octal and hexadecimal ordinal values not allowed$"):
-      mojo_parser.Parse(source4, "my_file.mojom")
-
-    source5 = """\
-module my_module { struct MyStruct { int32 a_hex @0X0; }; }
-"""
-    with self.assertRaisesRegexp(
-        mojo_lexer.LexError,
-        r"^my_file\.mojom:1: Error: "
-            r"Octal and hexadecimal ordinal values not allowed$"):
-      mojo_parser.Parse(source5, "my_file.mojom")
-
-
-if __name__ == "__main__":
-  unittest.main()