Check for inputs not generated by deps

tools/gn/test_with_scope.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 "tools/gn/test_with_scope.h"
 
 #include "base/bind.h"
 #include "tools/gn/parser.h"
 #include "tools/gn/tokenizer.h"
 
@@ skipping 21 matching lines @@
 
   settings_.set_toolchain_label(toolchain_.label());
   settings_.set_default_toolchain_label(toolchain_.label());
 
   SetupToolchain(&toolchain_);
 }
 
 TestWithScope::~TestWithScope() {
 }
 
+Label TestWithScope::ParseLabel(const std::string& str) const {
+  Err err;
+  Label result = Label::Resolve(SourceDir("//"), toolchain_.label(),
+                                Value(nullptr, str), &err);
+  CHECK(!err.has_error());
+  return result;
+}
+
 // static
 void TestWithScope::SetupToolchain(Toolchain* toolchain) {
   Err err;
 
   // CC
   scoped_ptr<Tool> cc_tool(new Tool);
   SetCommandForTool(
       "cc {{source}} {{cflags}} {{cflags_c}} {{defines}} {{include_dirs}} "
       "-o {{output}}",
       cc_tool.get());
@@ skipping 80 matching lines @@
     : input_file_(SourceFile("//test")) {
   input_file_.SetContents(input);
 
   tokens_ = Tokenizer::Tokenize(&input_file_, &parse_err_);
   if (!parse_err_.has_error())
     parsed_ = Parser::Parse(tokens_, &parse_err_);
 }
 
 TestParseInput::~TestParseInput() {
 }
+
+TestTarget::TestTarget(TestWithScope& setup,
+                       const std::string& label_string,
+                       Target::OutputType type)
+    : Target(setup.settings(), setup.ParseLabel(label_string)) {
+  visibility().SetPublic();
+  set_output_type(type);
+  SetToolchain(setup.toolchain());
+}
+
+TestTarget::~TestTarget() {
+}