From 61ab1549fdd5328c81133efdd01f2a4245607211 Mon Sep 17 00:00:00 2001
From: Dan Goodliffe <dan@randomdan.homeip.net>
Date: Wed, 21 Jan 2015 12:15:47 +0000
Subject: Add sandboxed database support to unit tests and lots of sample data

---
 p2pvr/daemon/unittests/mockDatasource.cpp | 64 +++++++++++++++++++++++++++++++
 p2pvr/daemon/unittests/mockDatasource.h   | 29 ++++++++++++++
 2 files changed, 93 insertions(+)
 create mode 100644 p2pvr/daemon/unittests/mockDatasource.cpp
 create mode 100644 p2pvr/daemon/unittests/mockDatasource.h

diff --git a/p2pvr/daemon/unittests/mockDatasource.cpp b/p2pvr/daemon/unittests/mockDatasource.cpp
new file mode 100644
index 0000000..da4e3c6
--- /dev/null
+++ b/p2pvr/daemon/unittests/mockDatasource.cpp
@@ -0,0 +1,64 @@
+#include "mockDatasource.h"
+#include <misc.h>
+#include <scripts.h>
+#include <connection.h>
+#include <logger.h>
+#include <boost/filesystem/operations.hpp>
+#include <definedDirs.h>
+
+typedef MockDatabase::MockConnectionLoader MDMCL;
+DECLARE_CUSTOM_COMPONENT_LOADER("mock", T, MDMCL, ConnectionLoader);
+
+std::map<std::string, std::string> MockDatabase::mocks;
+unsigned int MockDatabase::mocked = 0;
+
+DB::Connection *
+MockDatabase::MockConnectionLoader::create(const std::string & n) const
+{
+	auto m = MockDatabase::mocks.find(n);
+	return InstanceMap<ConnectionLoader, std::string>::Get<std::invalid_argument>("postgresql")->create(m->second);
+}
+
+MockDatabase::MockDatabase(const std::string & masterdb, const std::string & name, const std::vector<std::string> & ss) :
+	master(InstanceMap<ConnectionLoader, std::string>::Get<std::invalid_argument>("postgresql")->create(masterdb)),
+	testDbName(stringbf("test_%d_%d", getpid(), ++mocked))
+{
+	Logger()->messagebf(LOG_DEBUG, "Setting up new mocked database %s", testDbName);
+	DropDatabase();
+	CreateNewDatabase();
+	try {
+		for (auto s : ss) {
+			Logger()->messagebf(LOG_DEBUG, "%s << %s", testDbName, s);
+			system(("psql -q -1 -U postgres " + testDbName + " -f " + (RootDir  / s).string()).c_str());
+		}
+		Logger()->messagebf(LOG_DEBUG, "%s initialized", testDbName);
+		mocks[name] = stringbf("user=postgres dbname=%s", testDbName);
+	}
+	catch (...) {
+		DropDatabase();
+		throw;
+	}
+}
+
+MockDatabase::~MockDatabase()
+{
+	Logger()->messagebf(LOG_DEBUG, "Tearing down mocked database %s", testDbName);
+	DropDatabase();
+	delete master;
+	Logger()->messagebf(LOG_DEBUG, "%s torn down", testDbName);
+}
+
+void MockDatabase::DropDatabase() const
+{
+	Logger()->messagebf(LOG_INFO, "Killing any active connections to database %s", testDbName);
+	master->execute("SELECT pg_terminate_backend(pid) FROM pg_stat_activity WHERE datname = '" + testDbName + "'");
+	Logger()->messagebf(LOG_INFO, "Dropping (if exists) old database %s", testDbName);
+	master->execute("DROP DATABASE IF EXISTS " + testDbName);
+}
+
+void MockDatabase::CreateNewDatabase() const
+{
+	Logger()->messagebf(LOG_INFO, "Creating new database %s", testDbName);
+	master->execute("CREATE DATABASE " + testDbName);
+}
+
diff --git a/p2pvr/daemon/unittests/mockDatasource.h b/p2pvr/daemon/unittests/mockDatasource.h
new file mode 100644
index 0000000..c39e560
--- /dev/null
+++ b/p2pvr/daemon/unittests/mockDatasource.h
@@ -0,0 +1,29 @@
+#ifndef TESTDATASOURCE_H
+#define TESTDATASOURCE_H
+
+#include <rdbmsDataSource.h>
+
+class MockDatabase {
+	public:
+		class MockConnectionLoader : public ConnectionLoader {
+			public:
+				DB::Connection * create(const std::string &) const;
+		};
+
+		MockDatabase(const std::string & master, const std::string & name, const std::vector<std::string> & ss);
+		~MockDatabase();
+
+	protected:
+		void DropDatabase() const;
+		void CreateNewDatabase() const;
+
+	private:
+		const DB::Connection * master;
+		const std::string testDbName;
+
+		static unsigned int mocked;
+		static std::map<std::string, std::string> mocks;
+};
+
+#endif
+
-- 
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