Missed new files in last commit

src/platform/update_engine/filesystem_copier_action_unittest.cc

Index: src/platform/update_engine/filesystem_copier_action_unittest.cc
diff --git a/src/platform/update_engine/filesystem_copier_action_unittest.cc b/src/platform/update_engine/filesystem_copier_action_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..46c13a3690dccf9b7eb5ed9e4b36f6b63e779fa0
--- /dev/null
+++ b/src/platform/update_engine/filesystem_copier_action_unittest.cc
@@ -0,0 +1,273 @@
+// Copyright (c) 2009 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 <glib.h>
+#include <set>
+#include <vector>
+#include <gtest/gtest.h>
+#include "update_engine/filesystem_copier_action.h"
+#include "update_engine/filesystem_iterator.h"
+#include "update_engine/omaha_hash_calculator.h"
+#include "update_engine/test_utils.h"
+#include "update_engine/utils.h"
+
+using std::set;
+using std::vector;
+
+namespace chromeos_update_engine {
+
+class FilesystemCopierActionTest : public ::testing::Test {
+ protected:
+  void DoTest(bool double_copy, bool run_out_of_space);
+  string TestDir() { return "./FilesystemCopierActionTestDir"; }
+  void SetUp() {
+    System(string("mkdir -p ") + TestDir());
+  }
+  void TearDown() {
+    System(string("rm -rf ") + TestDir());
+  }
+};
+
+class FilesystemCopierActionTestDelegate : public ActionProcessorDelegate {
+ public:
+  FilesystemCopierActionTestDelegate() : ran_(false), success_(false) {}
+  void ProcessingDone(const ActionProcessor* processor) {
+    g_main_loop_quit(loop_);
+  }
+  void ActionCompleted(ActionProcessor* processor,
+                       AbstractAction* action,
+                       bool success) {
+    if (action->Type() == FilesystemCopierAction::StaticType()) {
+      ran_ = true;
+      success_ = success;
+    }
+  }
+  void set_loop(GMainLoop* loop) {
+    loop_ = loop;
+  }
+  bool ran() { return ran_; }
+  bool success() { return success_; }
+ private:
+  GMainLoop* loop_;
+  bool ran_;
+  bool success_;
+};
+
+gboolean StartProcessorInRunLoop(gpointer data) {
+  ActionProcessor* processor = reinterpret_cast<ActionProcessor*>(data);
+  processor->StartProcessing();
+  return FALSE;
+}
+
+TEST_F(FilesystemCopierActionTest, RunAsRootSimpleTest) {
+  ASSERT_EQ(0, getuid());
+  DoTest(false, false);
+}
+void FilesystemCopierActionTest::DoTest(bool double_copy,
+                                        bool run_out_of_space) {
+  GMainLoop *loop = g_main_loop_new(g_main_context_default(), FALSE);
+
+  // make two populated ext images, mount them both (one in the other),
+  // and copy to a loop device setup to correspond to another file.
+
+  const string a_image(TestDir() + "/a_image");
+  const string b_image(TestDir() + "/b_image");
+  const string out_image(TestDir() + "/out_image");
+
+  vector<string> expected_paths_vector;
+  CreateExtImageAtPath(a_image, &expected_paths_vector);
+  CreateExtImageAtPath(b_image, NULL);
+
+  // create 5 MiB file
+  ASSERT_EQ(0, System(string("dd if=/dev/zero of=") + out_image
+                      + " seek=5242879 bs=1 count=1"));
+
+  // mount them both
+  System(("mkdir -p " + TestDir() + "/mnt").c_str());
+  ASSERT_EQ(0, System(string("mount -o loop ") + a_image + " " +
+                      TestDir() + "/mnt"));
+  ASSERT_EQ(0,
+            System(string("mount -o loop ") + b_image + " " +
+                   TestDir() + "/mnt/some_dir/mnt"));
+
+  if (run_out_of_space)
+    ASSERT_EQ(0, System(string("dd if=/dev/zero of=") +
+                        TestDir() + "/mnt/big_zero bs=5M count=1"));
+
+  string dev = GetUnusedLoopDevice();
+
+  EXPECT_EQ(0, System(string("losetup ") + dev + " " + out_image));
+
+  InstallPlan install_plan;
+  install_plan.is_full_update = false;
+  install_plan.install_path = dev;
+
+  ActionProcessor processor;
+  FilesystemCopierActionTestDelegate delegate;
+  delegate.set_loop(loop);
+  processor.set_delegate(&delegate);
+
+  ObjectFeederAction<InstallPlan> feeder_action;
+  FilesystemCopierAction copier_action;
+  FilesystemCopierAction copier_action2;
+  ObjectCollectorAction<InstallPlan> collector_action;
+
+  BondActions(&feeder_action, &copier_action);
+  if (double_copy) {
+    BondActions(&copier_action, &copier_action2);
+    BondActions(&copier_action2, &collector_action);
+  } else {
+    BondActions(&copier_action, &collector_action);
+  }
+
+  processor.EnqueueAction(&feeder_action);
+  processor.EnqueueAction(&copier_action);
+  if (double_copy)
+    processor.EnqueueAction(&copier_action2);
+  processor.EnqueueAction(&collector_action);
+
+  copier_action.set_copy_source(TestDir() + "/mnt");
+  feeder_action.set_obj(install_plan);
+
+  g_timeout_add(0, &StartProcessorInRunLoop, &processor);
+  g_main_loop_run(loop);
+  g_main_loop_unref(loop);
+
+  EXPECT_EQ(0, System(string("losetup -d ") + dev));
+  EXPECT_EQ(0, System(string("umount ") + TestDir() + "/mnt/some_dir/mnt"));
+  EXPECT_EQ(0, System(string("umount ") + TestDir() + "/mnt"));
+  EXPECT_EQ(0, unlink(a_image.c_str()));
+  EXPECT_EQ(0, unlink(b_image.c_str()));
+
+  EXPECT_TRUE(delegate.ran());
+  if (run_out_of_space) {
+    EXPECT_FALSE(delegate.success());
+    EXPECT_EQ(0, unlink(out_image.c_str()));
+    EXPECT_EQ(0, rmdir((TestDir() + "/mnt").c_str()));
+    return;
+  }
+  EXPECT_TRUE(delegate.success());
+
+  EXPECT_EQ(0, System(string("mount -o loop ") + out_image + " " +
+                      TestDir() + "/mnt"));
+  // Make sure everything in the out_image is there
+  expected_paths_vector.push_back("/update_engine_copy_success");
+  for (vector<string>::iterator it = expected_paths_vector.begin();
+       it != expected_paths_vector.end(); ++it) {
+    *it = TestDir() + "/mnt" + *it;
+  }
+  set<string> expected_paths(expected_paths_vector.begin(),
+                             expected_paths_vector.end());
+  VerifyAllPaths(TestDir() + "/mnt", expected_paths);
+  string file_data;
+  EXPECT_TRUE(utils::ReadFileToString(TestDir() + "/mnt/hi", &file_data));
+  EXPECT_EQ("hi\n", file_data);
+  EXPECT_TRUE(utils::ReadFileToString(TestDir() + "/mnt/hello", &file_data));
+  EXPECT_EQ("hello\n", file_data);
+  EXPECT_EQ("/some/target", Readlink(TestDir() + "/mnt/sym"));
+  EXPECT_EQ(0, System(string("umount ") + TestDir() + "/mnt"));
+
+  EXPECT_EQ(0, unlink(out_image.c_str()));
+  EXPECT_EQ(0, rmdir((TestDir() + "/mnt").c_str()));
+
+  EXPECT_FALSE(copier_action.skipped_copy());
+  LOG(INFO) << "collected plan:";
+  collector_action.object().Dump();
+  LOG(INFO) << "expected plan:";
+  install_plan.Dump();
+  EXPECT_TRUE(collector_action.object() == install_plan);
+}
+
+class FilesystemCopierActionTest2Delegate : public ActionProcessorDelegate {
+ public:
+  void ActionCompleted(ActionProcessor* processor,
+                       AbstractAction* action,
+                       bool success) {
+    if (action->Type() == FilesystemCopierAction::StaticType()) {
+      ran_ = true;
+      success_ = success;
+    }
+  }
+  GMainLoop *loop_;
+  bool ran_;
+  bool success_;
+};
+
+TEST_F(FilesystemCopierActionTest, MissingInputObjectTest) {
+  ActionProcessor processor;
+  FilesystemCopierActionTest2Delegate delegate;
+
+  processor.set_delegate(&delegate);
+
+  FilesystemCopierAction copier_action;
+  ObjectCollectorAction<InstallPlan> collector_action;
+
+  BondActions(&copier_action, &collector_action);
+
+  processor.EnqueueAction(&copier_action);
+  processor.EnqueueAction(&collector_action);
+  processor.StartProcessing();
+  EXPECT_FALSE(processor.IsRunning());
+  EXPECT_TRUE(delegate.ran_);
+  EXPECT_FALSE(delegate.success_);
+}
+
+TEST_F(FilesystemCopierActionTest, FullUpdateTest) {
+  ActionProcessor processor;
+  FilesystemCopierActionTest2Delegate delegate;
+
+  processor.set_delegate(&delegate);
+
+  ObjectFeederAction<InstallPlan> feeder_action;
+  InstallPlan install_plan(true, "", "", "", "");
+  feeder_action.set_obj(install_plan);
+  FilesystemCopierAction copier_action;
+  ObjectCollectorAction<InstallPlan> collector_action;
+
+  BondActions(&feeder_action, &copier_action);
+  BondActions(&copier_action, &collector_action);
+
+  processor.EnqueueAction(&feeder_action);
+  processor.EnqueueAction(&copier_action);
+  processor.EnqueueAction(&collector_action);
+  processor.StartProcessing();
+  EXPECT_FALSE(processor.IsRunning());
+  EXPECT_TRUE(delegate.ran_);
+  EXPECT_TRUE(delegate.success_);
+}
+
+TEST_F(FilesystemCopierActionTest, NonExistentDriveTest) {
+  ActionProcessor processor;
+  FilesystemCopierActionTest2Delegate delegate;
+
+  processor.set_delegate(&delegate);
+
+  ObjectFeederAction<InstallPlan> feeder_action;
+  InstallPlan install_plan(false, "", "", "", "/some/missing/file/path");
+  feeder_action.set_obj(install_plan);
+  FilesystemCopierAction copier_action;
+  ObjectCollectorAction<InstallPlan> collector_action;
+
+  BondActions(&copier_action, &collector_action);
+
+  processor.EnqueueAction(&feeder_action);
+  processor.EnqueueAction(&copier_action);
+  processor.EnqueueAction(&collector_action);
+  processor.StartProcessing();
+  EXPECT_FALSE(processor.IsRunning());
+  EXPECT_TRUE(delegate.ran_);
+  EXPECT_FALSE(delegate.success_);
+}
+
+TEST_F(FilesystemCopierActionTest, RunAsRootSkipUpdateTest) {
+  ASSERT_EQ(0, getuid());
+  DoTest(true, false);
+}
+
+TEST_F(FilesystemCopierActionTest, RunAsRootNoSpaceTest) {
+  ASSERT_EQ(0, getuid());
+  DoTest(false, true);
+}
+
+}  // namespace chromeos_update_engine