1 // Copyright 2014 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "testing/gtest/include/gtest/gtest.h" 6 #include "tools/gn/functions.h" 7 #include "tools/gn/parse_tree.h" 8 #include "tools/gn/test_with_scope.h" 9 #include "tools/gn/value.h" 10 11 TEST(Functions, Defined) { 12 TestWithScope setup; 13 14 FunctionCallNode function_call; 15 Err err; 16 17 // Test an undefined identifier. 18 Token undefined_token(Location(), Token::IDENTIFIER, "undef"); 19 ListNode args_list_identifier_undefined; 20 args_list_identifier_undefined.append_item( 21 scoped_ptr<ParseNode>(new IdentifierNode(undefined_token))); 22 Value result = functions::RunDefined(setup.scope(), &function_call, 23 &args_list_identifier_undefined, &err); 24 ASSERT_EQ(Value::BOOLEAN, result.type()); 25 EXPECT_FALSE(result.boolean_value()); 26 27 // Define a value that's itself a scope value. 28 const char kDef[] = "def"; // Defined variable name. 29 setup.scope()->SetValue(kDef, 30 Value(NULL, scoped_ptr<Scope>(new Scope(setup.scope()))), 31 NULL); 32 33 // Test the defined identifier. 34 Token defined_token(Location(), Token::IDENTIFIER, kDef); 35 ListNode args_list_identifier_defined; 36 args_list_identifier_defined.append_item( 37 scoped_ptr<ParseNode>(new IdentifierNode(defined_token))); 38 result = functions::RunDefined(setup.scope(), &function_call, 39 &args_list_identifier_defined, &err); 40 ASSERT_EQ(Value::BOOLEAN, result.type()); 41 EXPECT_TRUE(result.boolean_value()); 42 43 // Should also work by passing an accessor node so you can do 44 // "defined(def.foo)" to see if foo is defined on the def scope. 45 scoped_ptr<AccessorNode> undef_accessor(new AccessorNode); 46 undef_accessor->set_base(defined_token); 47 undef_accessor->set_member(scoped_ptr<IdentifierNode>( 48 new IdentifierNode(undefined_token))); 49 ListNode args_list_accessor_defined; 50 args_list_accessor_defined.append_item(undef_accessor.PassAs<ParseNode>()); 51 result = functions::RunDefined(setup.scope(), &function_call, 52 &args_list_accessor_defined, &err); 53 ASSERT_EQ(Value::BOOLEAN, result.type()); 54 EXPECT_FALSE(result.boolean_value()); 55 } 56
