closure_linter: 2.3.4 => 2.3.14

third_party/closure_linter/closure_linter/aliaspass_test.py

Index: third_party/closure_linter/closure_linter/aliaspass_test.py
diff --git a/third_party/closure_linter/closure_linter/aliaspass_test.py b/third_party/closure_linter/closure_linter/aliaspass_test.py
new file mode 100644
index 0000000000000000000000000000000000000000..1c5578870d5902a9ca117adce3ac18901b90fdb7
--- /dev/null
+++ b/third_party/closure_linter/closure_linter/aliaspass_test.py
@@ -0,0 +1,162 @@
+#!/usr/bin/env python
+#
+# Copyright 2012 The Closure Linter Authors. All Rights Reserved.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS-IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""Unit tests for the aliaspass module."""
+
+# Allow non-Google copyright
+# pylint: disable=g-bad-file-header
+
+__author__ = ('nnaze@google.com (Nathan Naze)')
+
+import unittest as googletest
+
+from closure_linter import aliaspass
+from closure_linter import errors
+from closure_linter import testutil
+from closure_linter.common import erroraccumulator
+
+
+def _GetTokenByLineAndString(start_token, string, line_number):
+  for token in start_token:
+    if token.line_number == line_number and token.string == string:
+      return token
+
+
+class AliasPassTest(googletest.TestCase):
+
+  def testInvalidGoogScopeCall(self):
+    start_token = testutil.TokenizeSourceAndRunEcmaPass(_TEST_SCOPE_SCRIPT)
+
+    error_accumulator = erroraccumulator.ErrorAccumulator()
+    alias_pass = aliaspass.AliasPass(
+        error_handler=error_accumulator)
+    alias_pass.Process(start_token)
+
+    alias_errors = error_accumulator.GetErrors()
+    self.assertEquals(1, len(alias_errors))
+
+    alias_error = alias_errors[0]
+
+    self.assertEquals(errors.INVALID_USE_OF_GOOG_SCOPE, alias_error.code)
+    self.assertEquals('goog.scope', alias_error.token.string)
+
+  def testAliasedIdentifiers(self):
+    start_token = testutil.TokenizeSourceAndRunEcmaPass(_TEST_ALIAS_SCRIPT)
+    alias_pass = aliaspass.AliasPass(set(['goog', 'myproject']))
+    alias_pass.Process(start_token)
+
+    alias_token = _GetTokenByLineAndString(start_token, 'Event', 4)
+    self.assertTrue(alias_token.metadata.is_alias_definition)
+
+    my_class_token = _GetTokenByLineAndString(start_token, 'myClass', 9)
+    self.assertIsNone(my_class_token.metadata.aliased_symbol)
+
+    component_token = _GetTokenByLineAndString(start_token, 'Component', 17)
+    self.assertEquals('goog.ui.Component',
+                      component_token.metadata.aliased_symbol)
+
+    event_token = _GetTokenByLineAndString(start_token, 'Event.Something', 17)
+    self.assertEquals('goog.events.Event.Something',
+                      event_token.metadata.aliased_symbol)
+
+    non_closurized_token = _GetTokenByLineAndString(
+        start_token, 'NonClosurizedClass', 18)
+    self.assertIsNone(non_closurized_token.metadata.aliased_symbol)
+
+    long_start_token = _GetTokenByLineAndString(start_token, 'Event.', 21)
+    self.assertEquals('goog.events.Event.MultilineIdentifier.someMethod',
+                      long_start_token.metadata.aliased_symbol)
+
+  def testMultipleGoogScopeCalls(self):
+    start_token = testutil.TokenizeSourceAndRunEcmaPass(
+        _TEST_MULTIPLE_SCOPE_SCRIPT)
+
+    error_accumulator = erroraccumulator.ErrorAccumulator()
+
+    alias_pass = aliaspass.AliasPass(
+        set(['goog', 'myproject']),
+        error_handler=error_accumulator)
+    alias_pass.Process(start_token)
+
+    alias_errors = error_accumulator.GetErrors()
+
+    self.assertEquals(3, len(alias_errors))
+
+    error = alias_errors[0]
+    self.assertEquals(errors.INVALID_USE_OF_GOOG_SCOPE, error.code)
+    self.assertEquals(7, error.token.line_number)
+
+    error = alias_errors[1]
+    self.assertEquals(errors.EXTRA_GOOG_SCOPE_USAGE, error.code)
+    self.assertEquals(7, error.token.line_number)
+
+    error = alias_errors[2]
+    self.assertEquals(errors.EXTRA_GOOG_SCOPE_USAGE, error.code)
+    self.assertEquals(11, error.token.line_number)
+
+
+_TEST_ALIAS_SCRIPT = """
+goog.scope(function() {
+var events = goog.events; // scope alias
+var Event = events.
+    Event; // nested multiline scope alias
+
+// This should not be registered as an aliased identifier because
+// it appears before the alias.
+var myClass = new MyClass();
+
+var Component = goog.ui.Component; // scope alias
+var MyClass = myproject.foo.MyClass; // scope alias
+
+// Scope alias of non-Closurized namespace.
+var NonClosurizedClass = aaa.bbb.NonClosurizedClass;
+
+var component = new Component(Event.Something);
+var nonClosurized = NonClosurizedClass();
+
+// A created namespace with a really long identifier.
+Event.
+    MultilineIdentifier.
+        someMethod = function() {};
+});
+"""
+
+_TEST_SCOPE_SCRIPT = """
+function foo () {
+  // This goog.scope call is invalid.
+  goog.scope(function() {
+
+  });
+}
+"""
+
+_TEST_MULTIPLE_SCOPE_SCRIPT = """
+goog.scope(function() {
+  // do nothing
+});
+
+function foo() {
+  var test = goog.scope; // We should not see goog.scope mentioned.
+}
+
+// This goog.scope invalid. There can be only one.
+goog.scope(function() {
+
+});
+"""
+
+
+if __name__ == '__main__':
+  googletest.main()