[test] Enable test status filtering by variant

tools/testrunner/local/statusfile_unittest.py

Index: tools/testrunner/local/statusfile_unittest.py
diff --git a/tools/testrunner/local/statusfile_unittest.py b/tools/testrunner/local/statusfile_unittest.py
new file mode 100755
index 0000000000000000000000000000000000000000..08ed5996f43be42cd83248c34f19a92deefa44d7
--- /dev/null
+++ b/tools/testrunner/local/statusfile_unittest.py
@@ -0,0 +1,163 @@
+#!/usr/bin/env python
+# Copyright 2016 the V8 project 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 unittest
+
+import statusfile
+from utils import Freeze
+
+
+TEST_VARIABLES = {
+  'system': 'linux',
+  'mode': 'release',
+}
+
+
+TEST_STATUS_FILE = """
+[
+[ALWAYS, {
+  'foo/bar': [PASS, SKIP],
+  'baz/bar': [PASS, FAIL],
+  'foo/*': [PASS, SLOW],
+}],  # ALWAYS
+
+['%s', {
+  'baz/bar': [PASS, SLOW],
+  'foo/*': [FAIL],
+}],
+]
+"""
+
+
+def make_variables():
+  variables = {}
+  variables.update(TEST_VARIABLES)
+  return variables
+
+
+class UtilsTest(unittest.TestCase):
+  def test_freeze(self):
+    self.assertEqual(2, Freeze({1: [2]})[1][0])
+    self.assertEqual(set([3]), Freeze({1: [2], 2: set([3])})[2])
+
+    with self.assertRaises(Exception):
+      Freeze({1: [], 2: set([3])})[2] = 4
+    with self.assertRaises(Exception):
+      Freeze({1: [], 2: set([3])}).update({3: 4})
+    with self.assertRaises(Exception):
+      Freeze({1: [], 2: set([3])})[1].append(2)
+    with self.assertRaises(Exception):
+      Freeze({1: [], 2: set([3])})[2] |= set([3])
+
+    # Sanity check that we can do the same calls on a non-fozen object.

[Jakob Kummerow, 2016/08/04 14:17:12]

nit: s/fozen/frozen/

+    {1: [], 2: set([3])}[2] = 4
+    {1: [], 2: set([3])}.update({3: 4})
+    {1: [], 2: set([3])}[1].append(2)
+    {1: [], 2: set([3])}[2] |= set([3])
+
+
+class StatusFileTest(unittest.TestCase):
+  def test_eval_expression(self):
+    variables = make_variables()
+    variables.update(statusfile.VARIABLES)
+
+    self.assertTrue(
+        statusfile._EvalExpression(
+            'system==linux and mode==release', variables))
+    self.assertTrue(
+        statusfile._EvalExpression(
+            'system==linux or variant==default', variables))
+    self.assertFalse(
+        statusfile._EvalExpression(
+            'system==linux and mode==debug', variables))
+    self.assertRaises(
+        AssertionError,
+        lambda: statusfile._EvalExpression(
+            'system==linux and mode==foo', variables))
+    self.assertRaises(
+        SyntaxError,
+        lambda: statusfile._EvalExpression(
+            'system==linux and mode=release', variables))
+    self.assertEquals(
+        statusfile.VARIANT_EXPRESSION,
+        statusfile._EvalExpression(
+            'system==linux and variant==default', variables)
+    )
+
+  def test_read_statusfile_section_true(self):
+    rules, wildcards = statusfile.ReadStatusFile(
+        TEST_STATUS_FILE % 'system==linux', make_variables())
+
+    self.assertEquals(
+        {
+          'foo/bar': set(['PASS', 'SKIP']),
+          'baz/bar': set(['PASS', 'FAIL', 'SLOW']),
+        },
+        rules[''],
+    )
+    self.assertEquals(
+        {
+          'foo/*': set(['SLOW', 'FAIL']),
+        },
+        wildcards[''],
+    )
+    self.assertEquals({}, rules['default'])
+    self.assertEquals({}, wildcards['default'])
+
+  def test_read_statusfile_section_false(self):
+    rules, wildcards = statusfile.ReadStatusFile(
+        TEST_STATUS_FILE % 'system==windows', make_variables())
+
+    self.assertEquals(
+        {
+          'foo/bar': set(['PASS', 'SKIP']),
+          'baz/bar': set(['PASS', 'FAIL']),
+        },
+        rules[''],
+    )
+    self.assertEquals(
+        {
+          'foo/*': set(['PASS', 'SLOW']),
+        },
+        wildcards[''],
+    )
+    self.assertEquals({}, rules['default'])
+    self.assertEquals({}, wildcards['default'])
+
+  def test_read_statusfile_section_variant(self):
+    rules, wildcards = statusfile.ReadStatusFile(
+        TEST_STATUS_FILE % 'system==linux and variant==default',
+        make_variables(),
+    )
+
+    self.assertEquals(
+        {
+          'foo/bar': set(['PASS', 'SKIP']),
+          'baz/bar': set(['PASS', 'FAIL']),
+        },
+        rules[''],
+    )
+    self.assertEquals(
+        {
+          'foo/*': set(['PASS', 'SLOW']),
+        },
+        wildcards[''],
+    )
+    self.assertEquals(
+        {
+          'baz/bar': set(['PASS', 'SLOW']),
+        },
+        rules['default'],
+    )
+    self.assertEquals(
+        {
+          'foo/*': set(['FAIL']),
+        },
+        wildcards['default'],
+    )
+
+
+if __name__ == '__main__':
+    unittest.main()