AU: Beginnings of delta support
- proto file for delta files; still needs hardlink support
- code to generate a delta update from two directory trees (old, new).
- code to parse delta update
- Actions: postinst-runner, install, bootable flag setter, filesystem
copier, Omaha response handler, Omaha request preparer,
- misc utility functions, like StringHasSuffix(), templatized Action
classes to feed/collect an object from another action.
- FilesystemIterator: iterates a directory tree with optional
exclusion path. Tolerates deleting of files during iteration.
- Subprocess class: support for synchronously or asynchronously
running an external command. Doesn't pass any env variables.
- Integration test that strings many Actions together and tests using
actual Omaha/Lorry. Currently only tests full updates.
- New simple HTTP server for unittest that supports fake flaky
connections.
- Some refactoring.
Review URL: http://codereview.chromium.org/466036
git-svn-id: svn://chrome-svn/chromeos/trunk@334 06c00378-0e64-4dae-be16-12b19f9950a1
diff --git a/test_utils.h b/test_utils.h
index 0c12e13..642158b 100644
--- a/test_utils.h
+++ b/test_utils.h
@@ -2,32 +2,178 @@
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
-#ifndef UPDATE_ENGINE_TEST_UTILS_H__
-#define UPDATE_ENGINE_TEST_UTILS_H__
+#ifndef CHROMEOS_PLATFORM_UPDATE_ENGINE_TEST_UTILS_H__
+#define CHROMEOS_PLATFORM_UPDATE_ENGINE_TEST_UTILS_H__
-#include <vector>
+#include <set>
#include <string>
+#include <vector>
+#include <gtest/gtest.h>
+#include "update_engine/action.h"
// These are some handy functions for unittests.
namespace chromeos_update_engine {
-// Returns the entire contents of the file at path. If the file doesn't
-// exist or error occurrs, an empty vector is returned.
-std::vector<char> ReadFile(const std::string& path);
-
// Writes the data passed to path. The file at path will be overwritten if it
// exists. Returns true on success, false otherwise.
-bool WriteFile(const std::string& path, const std::vector<char>& data);
+bool WriteFile(const char* path, const char* data, int data_len);
+bool WriteFileVector(const std::string& path, const std::vector<char>& data);
+bool WriteFileString(const std::string& path, const std::string& data);
// Returns the size of the file at path. If the file doesn't exist or some
// error occurrs, -1 is returned.
off_t FileSize(const std::string& path);
+// Reads a symlink from disk. Returns empty string on failure.
+std::string Readlink(const std::string& path);
+
// Gzip compresses the data passed using the gzip command line program.
// Returns compressed data back.
std::vector<char> GzipCompressData(const std::vector<char>& data);
+// Gives back a 512-bytes length array that contains an MBR with
+// the first partition is marked bootable.
+std::vector<char> GenerateSampleMbr();
+
+std::string GetUnusedLoopDevice();
+
+// Returns true iff a == b
+bool ExpectVectorsEq(const std::vector<char>& a, const std::vector<char>& b);
+
+inline int System(const std::string& cmd) {
+ return system(cmd.c_str());
+}
+
+namespace {
+// 300 byte pseudo-random string. Not null terminated.
+// This does not gzip compress well.
+const unsigned char kRandomString[] = {
+ 0xf2, 0xb7, 0x55, 0x92, 0xea, 0xa6, 0xc9, 0x57,
+ 0xe0, 0xf8, 0xeb, 0x34, 0x93, 0xd9, 0xc4, 0x8f,
+ 0xcb, 0x20, 0xfa, 0x37, 0x4b, 0x40, 0xcf, 0xdc,
+ 0xa5, 0x08, 0x70, 0x89, 0x79, 0x35, 0xe2, 0x3d,
+ 0x56, 0xa4, 0x75, 0x73, 0xa3, 0x6d, 0xd1, 0xd5,
+ 0x26, 0xbb, 0x9c, 0x60, 0xbd, 0x2f, 0x5a, 0xfa,
+ 0xb7, 0xd4, 0x3a, 0x50, 0xa7, 0x6b, 0x3e, 0xfd,
+ 0x61, 0x2b, 0x3a, 0x31, 0x30, 0x13, 0x33, 0x53,
+ 0xdb, 0xd0, 0x32, 0x71, 0x5c, 0x39, 0xed, 0xda,
+ 0xb4, 0x84, 0xca, 0xbc, 0xbd, 0x78, 0x1c, 0x0c,
+ 0xd8, 0x0b, 0x41, 0xe8, 0xe1, 0xe0, 0x41, 0xad,
+ 0x03, 0x12, 0xd3, 0x3d, 0xb8, 0x75, 0x9b, 0xe6,
+ 0xd9, 0x01, 0xd0, 0x87, 0xf4, 0x36, 0xfa, 0xa7,
+ 0x0a, 0xfa, 0xc5, 0x87, 0x65, 0xab, 0x9a, 0x7b,
+ 0xeb, 0x58, 0x23, 0xf0, 0xa8, 0x0a, 0xf2, 0x33,
+ 0x3a, 0xe2, 0xe3, 0x35, 0x74, 0x95, 0xdd, 0x3c,
+ 0x59, 0x5a, 0xd9, 0x52, 0x3a, 0x3c, 0xac, 0xe5,
+ 0x15, 0x87, 0x6d, 0x82, 0xbc, 0xf8, 0x7d, 0xbe,
+ 0xca, 0xd3, 0x2c, 0xd6, 0xec, 0x38, 0xeb, 0xe4,
+ 0x53, 0xb0, 0x4c, 0x3f, 0x39, 0x29, 0xf7, 0xa4,
+ 0x73, 0xa8, 0xcb, 0x32, 0x50, 0x05, 0x8c, 0x1c,
+ 0x1c, 0xca, 0xc9, 0x76, 0x0b, 0x8f, 0x6b, 0x57,
+ 0x1f, 0x24, 0x2b, 0xba, 0x82, 0xba, 0xed, 0x58,
+ 0xd8, 0xbf, 0xec, 0x06, 0x64, 0x52, 0x6a, 0x3f,
+ 0xe4, 0xad, 0xce, 0x84, 0xb4, 0x27, 0x55, 0x14,
+ 0xe3, 0x75, 0x59, 0x73, 0x71, 0x51, 0xea, 0xe8,
+ 0xcc, 0xda, 0x4f, 0x09, 0xaf, 0xa4, 0xbc, 0x0e,
+ 0xa6, 0x1f, 0xe2, 0x3a, 0xf8, 0x96, 0x7d, 0x30,
+ 0x23, 0xc5, 0x12, 0xb5, 0xd8, 0x73, 0x6b, 0x71,
+ 0xab, 0xf1, 0xd7, 0x43, 0x58, 0xa7, 0xc9, 0xf0,
+ 0xe4, 0x85, 0x1c, 0xd6, 0x92, 0x50, 0x2c, 0x98,
+ 0x36, 0xfe, 0x87, 0xaf, 0x43, 0x8f, 0x8f, 0xf5,
+ 0x88, 0x48, 0x18, 0x42, 0xcf, 0x42, 0xc1, 0xa8,
+ 0xe8, 0x05, 0x08, 0xa1, 0x45, 0x70, 0x5b, 0x8c,
+ 0x39, 0x28, 0xab, 0xe9, 0x6b, 0x51, 0xd2, 0xcb,
+ 0x30, 0x04, 0xea, 0x7d, 0x2f, 0x6e, 0x6c, 0x3b,
+ 0x5f, 0x82, 0xd9, 0x5b, 0x89, 0x37, 0x65, 0x65,
+ 0xbe, 0x9f, 0xa3, 0x5d
+};
+
+const string kMountPath("/tmp/UpdateEngineTests_mnt");
+} // namespace {}
+
+// Creates an ext image with some files in it. The paths creates are
+// returned in out_paths.
+void CreateExtImageAtPath(const std::string& path,
+ std::vector<std::string>* out_paths);
+
+// Verifies that for each path in paths, it exists in the filesystem under
+// parent. Also, verifies that no additional paths are present under parent.
+// Also tests properties of various files created by CreateExtImageAtPath().
+// Intentionally copies expected_paths.
+void VerifyAllPaths(const std::string& parent,
+ std::set<std::string> expected_paths);
+
+// Useful actions for test
+
+class NoneType;
+
+template<typename T>
+class ObjectFeederAction;
+
+template<typename T>
+class ActionTraits<ObjectFeederAction<T> > {
+ public:
+ typedef T OutputObjectType;
+ typedef NoneType InputObjectType;
+};
+
+// This is a simple Action class for testing. It feeds an object into
+// another action.
+template<typename T>
+struct ObjectFeederAction : public Action<ObjectFeederAction<T> > {
+ public:
+ typedef NoneType InputObjectType;
+ typedef T OutputObjectType;
+ void PerformAction() {
+ LOG(INFO) << "feeder running!";
+ CHECK(this->processor_);
+ if (this->HasOutputPipe()) {
+ this->SetOutputObject(out_obj_);
+ }
+ this->processor_->ActionComplete(this, true);
+ }
+ static std::string StaticType() { return "ObjectFeederAction"; }
+ std::string Type() const { return StaticType(); }
+ void set_obj(const T& out_obj) {
+ out_obj_ = out_obj;
+ }
+ private:
+ T out_obj_;
+};
+
+template<typename T>
+class ObjectCollectorAction;
+
+template<typename T>
+class ActionTraits<ObjectCollectorAction<T> > {
+ public:
+ typedef NoneType OutputObjectType;
+ typedef T InputObjectType;
+};
+
+// This is a simple Action class for testing. It receives an object from
+// another action.
+template<typename T>
+struct ObjectCollectorAction : public Action<ObjectCollectorAction<T> > {
+ public:
+ typedef T InputObjectType;
+ typedef NoneType OutputObjectType;
+ void PerformAction() {
+ LOG(INFO) << "collector running!";
+ ASSERT_TRUE(this->processor_);
+ if (this->HasInputObject()) {
+ object_ = this->GetInputObject();
+ }
+ this->processor_->ActionComplete(this, true);
+ }
+ static std::string StaticType() { return "ObjectCollectorAction"; }
+ std::string Type() const { return StaticType(); }
+ const T& object() const { return object_; }
+ private:
+ T object_;
+};
+
} // namespace chromeos_update_engine
-#endif // UPDATE_ENGINE_TEST_UTILS_H__
\ No newline at end of file
+#endif // CHROMEOS_PLATFORM_UPDATE_ENGINE_TEST_UTILS_H__
\ No newline at end of file