Add bisect config validation.

scripts/slave/recipe_modules/auto_bisect/config_validation_test.py

Index: scripts/slave/recipe_modules/auto_bisect/config_validation_test.py
diff --git a/scripts/slave/recipe_modules/auto_bisect/config_validation_test.py b/scripts/slave/recipe_modules/auto_bisect/config_validation_test.py
new file mode 100755
index 0000000000000000000000000000000000000000..4f2014ee5b44e8a517b79c6e618adb41a444a9c4
--- /dev/null
+++ b/scripts/slave/recipe_modules/auto_bisect/config_validation_test.py
@@ -0,0 +1,100 @@
+#!/usr/bin/env python
+# Copyright 2016 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 copy
+import os
+import sys
+import unittest
+
+root_dir = os.path.abspath(os.path.join(
+    os.path.dirname(__file__), os.path.pardir,
+    os.path.pardir, os.path.pardir, os.path.pardir))
+sys.path.insert(0, os.path.join(root_dir, 'third_party', 'mock-1.0.1'))
+sys.path.insert(0, os.path.join(os.path.dirname(__file__), os.path.pardir))
+
+import mock
+
+from auto_bisect import config_validation
+
+
+class ConfigValidationTest(unittest.TestCase):  # pragma: no cover
+
+  def test_validate_config_empty_config(self):
+    config_validation.validate_config(config={}, schema={})
+
+  def test_validate_config_with_missing_required_fails(self):
+    with self.assertRaises(config_validation.ValidationFail):
+      config_validation.validate_config(
+          config={},
+          schema={'foo': {'type': 'integer', 'required': True}})
+
+  def test_validate_config_with_one_field_passes(self):
+    config_validation.validate_config(
+        config={'foo': 123},
+        schema={'foo': {'type': 'integer'}})
+
+  def test_validate_optional_field_passes(self):
+    config_validation.validate_config(
+        config={},
+        schema={'foo': {'type': 'integer'}})
+
+  def test_validate_not_in_schema_passes(self):
+    config_validation.validate_config(config={'foo': 'asdf'}, schema={})
+
+  def test_validate_config_larger_passing_example(self):
+    schema = {
+        'str1': {'type': 'string'},
+        'str2': {'type': 'string'},
+        'int1': {'type': 'integer'},
+        'int2': {'type': 'integer'},
+        'rev1': {'type': 'revision'},
+        'rev2': {'type': 'revision'},
+        'bool1': {'type': 'boolean'},
+        'bool2': {'type': 'boolean'},
+    }
+    config = {
+        'str1': u'unicode-string',
+        'str2': '',
+        'int1': '12345',
+        'int2': 12345,
+        'rev1': '0123456789abcdeabcde0123456789abcdeabcde',
+        'rev2': '12345',
+        'bool1': True,
+        'bool2': False,
+    }
+    config_validation.validate_config(config, schema)
+
+  def test_validate_string_failure(self):
+    with self.assertRaises(config_validation.ValidationFail):
+      config_validation.validate_config(
+          config={'x': 12345},
+          schema={'x': {'type': 'string'}})
+
+  def test_validate_integer_failure(self):
+    with self.assertRaises(config_validation.ValidationFail):
+      config_validation.validate_config(
+          config={'x': '123a'},
+          schema={'x': {'type': 'integer'}})
+
+  def test_validate_revision_failure(self):
+    with self.assertRaises(config_validation.ValidationFail):
+      config_validation.validate_config(
+          config={'x': 'abcdef'},
+          schema={'x': {'type': 'revision'}})
+
+  def test_validate_boolean_failure(self):
+    with self.assertRaises(config_validation.ValidationFail):
+      config_validation.validate_config(
+          config={'x': 'true'},
+          schema={'x': {'type': 'boolean'}})
+
+  def test_validate_choice_failure(self):
+    with self.assertRaises(config_validation.ValidationFail):
+      config_validation.validate_config(
+          config={'x': 3},
+          schema={'x': {'type': 'int', 'choices': [1, 2]}})
+
+if __name__ == '__main__':
+  unittest.main()  # pragma: no cover