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Unified Diff: core/scripts/make_token_matcher_unittest.py

Issue 22498002: Roll IDL to multivm@1329 (Closed) Base URL: https://dart.googlecode.com/svn/third_party/WebCore
Patch Set: Created 7 years, 4 months ago
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Index: core/scripts/make_token_matcher_unittest.py
diff --git a/core/scripts/make_token_matcher_unittest.py b/core/scripts/make_token_matcher_unittest.py
new file mode 100755
index 0000000000000000000000000000000000000000..c0c82863970aa5be5e2e18227ff99ecefe3474c2
--- /dev/null
+++ b/core/scripts/make_token_matcher_unittest.py
@@ -0,0 +1,243 @@
+#!/usr/bin/env python
+# Copyright (C) 2013 Google Inc. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+# * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+# * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import tempfile
+import unittest
+
+from make_token_matcher import BadInput, CaseLineProcessor, MainLineProcessor, Optimizer, process_file, SwitchCase, SwitchLineProcessor
+
+
+class OptimizerTest(unittest.TestCase):
+ def test_nonalphabetic(self):
+ optimizer = Optimizer(None, None, None)
+ self.assertRaises(
+ BadInput,
+ optimizer.inspect_array,
+ [SwitchCase('-', None), SwitchCase('x', None)],
+ [0])
+
+
+class MainLineProcessorTest(unittest.TestCase):
+ def test_switch(self):
+ processor = MainLineProcessor(None)
+ switchLineProcessor = processor.process_line('SWITCH(array, length) {')
+ self.assertIsInstance(switchLineProcessor, SwitchLineProcessor)
+ self.assertEquals('array', switchLineProcessor.array_variable)
+ self.assertEquals('length', switchLineProcessor.length_variable)
+
+
+class SwitchLineProcessorTest(unittest.TestCase):
+ def test_case(self):
+ processor = SwitchLineProcessor(None, None, None, None)
+ caseLineProcessor = processor.process_line('CASE("identifier") {')
+ self.assertIsInstance(caseLineProcessor, CaseLineProcessor)
+ self.assertEquals('identifier', caseLineProcessor.identifier)
+
+ def test_unexpected(self):
+ processor = SwitchLineProcessor(None, None, None, None)
+ self.assertRaises(
+ BadInput,
+ processor.process_line,
+ 'unexpected')
+
+ def test_repeated(self):
+ processor = SwitchLineProcessor(None, None, None, None)
+ processor.process_line('CASE("x") {').process_line('}')
+ caseLineProcessor = processor.process_line('CASE("x") {')
+ self.assertRaises(
+ BadInput,
+ caseLineProcessor.process_line,
+ '}')
+
+
+class CaseLineProcessorTest(unittest.TestCase):
+ def test_break(self):
+ processor = CaseLineProcessor(None, None, None)
+ self.assertRaises(
+ BadInput,
+ processor.process_line,
+ 'break;')
+
+
+class ProcessFileTest(unittest.TestCase):
+ SOURCE_SMALL = """
+ SWITCH(p, q) {
+ CASE("a(") {
+ X;
+ }
+ CASE("b(") {
+ Y;
+ }
+ }
+ """
+
+ EXPECTED_SMALL = """
+ if (LIKELY(q == 2)) {
+ if (LIKELY(p[1] == '(')) {
+ if ((p[0] | 0x20) == 'a') {
+ X;
+ } else if (LIKELY((p[0] | 0x20) == 'b')) {
+ Y;
+ }
+ }
+ }
+ """
+
+ SOURCE_MEDIUM = """
+ SWITCH (p, q) {
+ CASE ("ab") {
+ X;
+ }
+ CASE ("cd") {
+ Y;
+ }
+ CASE ("ed") {
+ Z;
+ }
+ }
+ """
+
+ EXPECTED_MEDIUM = """
+ if (LIKELY(q == 2)) {
+ if ((p[1] | 0x20) == 'b') {
+ if (LIKELY((p[0] | 0x20) == 'a')) {
+ X;
+ }
+ } else if (LIKELY((p[1] | 0x20) == 'd')) {
+ if ((p[0] | 0x20) == 'c') {
+ Y;
+ } else if (LIKELY((p[0] | 0x20) == 'e')) {
+ Z;
+ }
+ }
+ }
+ """
+
+ SOURCE_LARGE = """
+ prefix;
+ SWITCH(p, q) {
+ CASE("hij") {
+ R;
+ }
+ CASE("efg") {
+ S;
+ }
+ CASE("c-") {
+ T;
+ }
+ CASE("klm") {
+ U;
+ }
+
+ CASE("d-") {
+ V;
+ }
+ CASE("a") {
+ W;
+ X;
+ }
+ CASE("b-") {
+ Y;
+ Z;
+ }
+ }
+ suffix;
+ """
+
+ EXPECTED_LARGE = """
+ prefix;
+ switch (q) {
+ case 1: {
+ if (LIKELY((p[0] | 0x20) == 'a')) {
+ W;
+ X;
+ }
+ } break;
+ case 2: {
+ if (LIKELY(p[1] == '-')) {
+ switch ((p[0] | 0x20)) {
+ case 'b': {
+ Y;
+ Z;
+ } break;
+ case 'c': {
+ T;
+ } break;
+ case 'd': {
+ V;
+ } break;
+ }
+ }
+ } break;
+ case 3: {
+ switch ((p[0] | 0x20)) {
+ case 'e': {
+ if (LIKELY((p[1] | 0x20) == 'f' && (p[2] | 0x20) == 'g')) {
+ S;
+ }
+ } break;
+ case 'h': {
+ if (LIKELY((p[1] | 0x20) == 'i' && (p[2] | 0x20) == 'j')) {
+ R;
+ }
+ } break;
+ case 'k': {
+ if (LIKELY((p[1] | 0x20) == 'l' && (p[2] | 0x20) == 'm')) {
+ U;
+ }
+ } break;
+ }
+ } break;
+ }
+ suffix;
+ """
+
+ def validate(self, source, expected):
+ with tempfile.NamedTemporaryFile() as input_file:
+ with tempfile.NamedTemporaryFile() as generated_file:
+ input_file.write(source)
+ input_file.flush()
+ process_file(input_file.name, generated_file.name)
+ # Our code generation does not yet implement pretty indentation.
+ actual = generated_file.read().replace(' ', '')
+ expected = expected.replace(' ', '')
+ self.assertEquals(actual, expected)
+
+ def test_small(self):
+ self.validate(ProcessFileTest.SOURCE_SMALL, ProcessFileTest.EXPECTED_SMALL)
+
+ def test_medium(self):
+ self.validate(ProcessFileTest.SOURCE_MEDIUM, ProcessFileTest.EXPECTED_MEDIUM)
+
+ def test_large(self):
+ self.validate(ProcessFileTest.SOURCE_LARGE, ProcessFileTest.EXPECTED_LARGE)
+
+
+if __name__ == "__main__":
+ unittest.main()
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