Implement tracking of BUILD.gn files used to define target, toolchain or

tools/gn/ninja_action_target_writer_unittest.cc

 // Copyright (c) 2013 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.
 
 #include <algorithm>
 #include <sstream>
 
 #include "build/build_config.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "tools/gn/ninja_action_target_writer.h"
 #include "tools/gn/substitution_list.h"
 #include "tools/gn/target.h"
 #include "tools/gn/test_with_scope.h"
 
 TEST(NinjaActionTargetWriter, WriteOutputFilesForBuildLine) {
   Err err;
   TestWithScope setup;
 
-  Target target(setup.settings(), Label(SourceDir("//foo/"), "bar"));
+  Target target(setup.settings(), Label(SourceDir("//foo/"), "bar"), {});
   target.set_output_type(Target::ACTION_FOREACH);
   target.action_values().outputs() = SubstitutionList::MakeForTest(
       "//out/Debug/gen/a b{{source_name_part}}.h",
       "//out/Debug/gen/{{source_name_part}}.cc");
 
   target.SetToolchain(setup.toolchain());
   ASSERT_TRUE(target.OnResolved(&err));
 
   std::ostringstream out;
   NinjaActionTargetWriter writer(&target, out);
 
   SourceFile source("//foo/bar.in");
   std::vector<OutputFile> output_files;
   writer.WriteOutputFilesForBuildLine(source, &output_files);
 
   EXPECT_EQ(" gen/a$ bbar.h gen/bar.cc", out.str());
 }
 
 // Tests an action with no sources.
 TEST(NinjaActionTargetWriter, ActionNoSources) {
   Err err;
   TestWithScope setup;
 
-  Target target(setup.settings(), Label(SourceDir("//foo/"), "bar"));
+  Target target(setup.settings(), Label(SourceDir("//foo/"), "bar"), {});
   target.set_output_type(Target::ACTION);
 
   target.action_values().set_script(SourceFile("//foo/script.py"));
   target.inputs().push_back(SourceFile("//foo/included.txt"));
 
   target.action_values().outputs() =
       SubstitutionList::MakeForTest("//out/Debug/foo.out");
 
   target.SetToolchain(setup.toolchain());
   ASSERT_TRUE(target.OnResolved(&err));
@@ skipping 18 matching lines @@
       "build obj/foo/bar.stamp: stamp foo.out\n";
   EXPECT_EQ(expected, out.str());
 }
 
 
 // Tests an action with no sources and console = true
 TEST(NinjaActionTargetWriter, ActionNoSourcesConsole) {
   Err err;
   TestWithScope setup;
 
-  Target target(setup.settings(), Label(SourceDir("//foo/"), "bar"));
+  Target target(setup.settings(), Label(SourceDir("//foo/"), "bar"), {});
   target.set_output_type(Target::ACTION);
 
   target.action_values().set_script(SourceFile("//foo/script.py"));
   target.inputs().push_back(SourceFile("//foo/included.txt"));
 
   target.action_values().outputs() =
       SubstitutionList::MakeForTest("//out/Debug/foo.out");
   target.action_values().set_console(true);
 
   target.SetToolchain(setup.toolchain());
@@ skipping 20 matching lines @@
       "build obj/foo/bar.stamp: stamp foo.out\n";
   EXPECT_EQ(expected, out.str());
 }
 
 // Makes sure that we write sources as input dependencies for actions with
 // both sources and inputs (ACTION_FOREACH treats the sources differently).
 TEST(NinjaActionTargetWriter, ActionWithSources) {
   Err err;
   TestWithScope setup;
 
-  Target target(setup.settings(), Label(SourceDir("//foo/"), "bar"));
+  Target target(setup.settings(), Label(SourceDir("//foo/"), "bar"), {});
   target.set_output_type(Target::ACTION);
 
   target.action_values().set_script(SourceFile("//foo/script.py"));
 
   target.sources().push_back(SourceFile("//foo/source.txt"));
   target.inputs().push_back(SourceFile("//foo/included.txt"));
 
   target.action_values().outputs() =
       SubstitutionList::MakeForTest("//out/Debug/foo.out");
 
@@ skipping 22 matching lines @@
 }
 
 TEST(NinjaActionTargetWriter, ForEach) {
   Err err;
   TestWithScope setup;
 
   // Some dependencies that the action can depend on. Use actions for these
   // so they have a nice platform-independent stamp file that can appear in the
   // output (rather than having to worry about how the current platform names
   // binaries).
-  Target dep(setup.settings(), Label(SourceDir("//foo/"), "dep"));
+  Target dep(setup.settings(), Label(SourceDir("//foo/"), "dep"), {});
   dep.set_output_type(Target::ACTION);
   dep.visibility().SetPublic();
   dep.SetToolchain(setup.toolchain());
   ASSERT_TRUE(dep.OnResolved(&err));
 
-  Target datadep(setup.settings(), Label(SourceDir("//foo/"), "datadep"));
+  Target datadep(setup.settings(), Label(SourceDir("//foo/"), "datadep"), {});
   datadep.set_output_type(Target::ACTION);
   datadep.visibility().SetPublic();
   datadep.SetToolchain(setup.toolchain());
   ASSERT_TRUE(datadep.OnResolved(&err));
 
-  Target target(setup.settings(), Label(SourceDir("//foo/"), "bar"));
+  Target target(setup.settings(), Label(SourceDir("//foo/"), "bar"), {});
   target.set_output_type(Target::ACTION_FOREACH);
   target.private_deps().push_back(LabelTargetPair(&dep));
   target.data_deps().push_back(LabelTargetPair(&datadep));
 
   target.sources().push_back(SourceFile("//foo/input1.txt"));
   target.sources().push_back(SourceFile("//foo/input2.txt"));
 
   target.action_values().set_script(SourceFile("//foo/script.py"));
 
   target.action_values().args() = SubstitutionList::MakeForTest(
@@ skipping 43 matching lines @@
 #if defined(OS_WIN)
   std::replace(out_str.begin(), out_str.end(), '\\', '/');
 #endif
   EXPECT_EQ(expected_linux, out_str);
 }
 
 TEST(NinjaActionTargetWriter, ForEachWithDepfile) {
   Err err;
   TestWithScope setup;
 
-  Target target(setup.settings(), Label(SourceDir("//foo/"), "bar"));
+  Target target(setup.settings(), Label(SourceDir("//foo/"), "bar"), {});
   target.set_output_type(Target::ACTION_FOREACH);
 
   target.sources().push_back(SourceFile("//foo/input1.txt"));
   target.sources().push_back(SourceFile("//foo/input2.txt"));
 
   target.action_values().set_script(SourceFile("//foo/script.py"));
 
   target.SetToolchain(setup.toolchain());
   ASSERT_TRUE(target.OnResolved(&err));
 
@@ skipping 41 matching lines @@
       "  depfile = gen/input2.d\n"
       "\n"
       "build obj/foo/bar.stamp: stamp input1.out input2.out\n";
   EXPECT_EQ(expected_linux, out.str());
 }
 
 TEST(NinjaActionTargetWriter, ForEachWithResponseFile) {
   Err err;
   TestWithScope setup;
 
-  Target target(setup.settings(), Label(SourceDir("//foo/"), "bar"));
+  Target target(setup.settings(), Label(SourceDir("//foo/"), "bar"), {});
   target.set_output_type(Target::ACTION_FOREACH);
 
   target.sources().push_back(SourceFile("//foo/input1.txt"));
   target.action_values().set_script(SourceFile("//foo/script.py"));
 
   target.SetToolchain(setup.toolchain());
   ASSERT_TRUE(target.OnResolved(&err));
 
   // Make sure we get interesting substitutions for both the args and the
   // response file contents.
@@ skipping 31 matching lines @@
       // Necessary for the rspfile defined in the rule.
       "  unique_name = 0\n"
       // Substitution for the args.
       "  source_file_part = input1.txt\n"
       // Substitution for the rspfile contents.
       "  source_name_part = input1\n"
       "\n"
       "build obj/foo/bar.stamp: stamp input1.out\n";
   EXPECT_EQ(expected_linux, out.str());
 }