1 // Copyright (c) 2013 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/scheduler.h" 7 #include "tools/gn/scope.h" 8 #include "tools/gn/test_with_scope.h" 9 10 11 // Checks that we find unused identifiers in targets. 12 TEST(FunctionsTarget, CheckUnused) { 13 Scheduler scheduler; 14 TestWithScope setup; 15 16 // The target generator needs a place to put the targets or it will fail. 17 Scope::ItemVector item_collector; 18 setup.scope()->set_item_collector(&item_collector); 19 20 // Test a good one first. 21 TestParseInput good_input( 22 "source_set(\"foo\") {\n" 23 "}\n"); 24 ASSERT_FALSE(good_input.has_error()); 25 Err err; 26 good_input.parsed()->Execute(setup.scope(), &err); 27 ASSERT_FALSE(err.has_error()) << err.message(); 28 29 // Test a source set (this covers everything but component) with an unused 30 // variable. 31 TestParseInput source_set_input( 32 "source_set(\"foo\") {\n" 33 " unused = 5\n" 34 "}\n"); 35 ASSERT_FALSE(source_set_input.has_error()); 36 err = Err(); 37 source_set_input.parsed()->Execute(setup.scope(), &err); 38 ASSERT_TRUE(err.has_error()); 39 40 // Test a component, which is a different code path. 41 TestParseInput component_input( 42 "component_mode = \"static_library\"\n" 43 "component(\"bar\") {\n" 44 " unused = 5\n" 45 "}\n"); 46 ASSERT_FALSE(component_input.has_error()); 47 err = Err(); 48 component_input.parsed()->Execute(setup.scope(), &err); 49 ASSERT_TRUE(err.has_error()) << err.message(); 50 } 51
