database: Add tests for databases without a filepath

These databases should not be saved to disk, since the user hasn't given
a valid filepath.

Signed-off-by: Anna Schumaker <schumaker.anna@gmail.com>

include/database.hpp

@@ -16,13 +16,13 @@ Database<T> :: Database(std::string filepath)
 template <class T>
 Database<T> :: ~Database()
 {
-
 }
 
 template <class T>
 void Database<T> :: save()
 {
-	file.open(OPEN_WRITE);
+	if (file.open(OPEN_WRITE) == false)
+		return;
 
 	file << db.size() << std::endl;
 	for (unsigned int i = 0; i < db.size(); i++) {
@@ -39,7 +39,8 @@ template <class T>
 void Database<T> :: load()
 {
 	unsigned int db_size;
-	file.open(OPEN_READ);
+	if (file.open(OPEN_READ) == false)
+		return;
 
 	file >> db_size;
 	db.resize(db_size);

tests/database/database.cpp

@@ -68,6 +68,7 @@ void test_deletion(Database<DBTest> &db)
  */
 void test_0()
 {
+	print("Test 0\n");
 	Database<DBTest> db("test.db");
 
 	test_insertion(db);
@@ -82,15 +83,40 @@ void test_0()
  */
 void test_1()
 {
+	print("Test 1\n");
 	Database<DBTest> db("test.db");
 	db.load();
 	print_db(db);
 }
 
+/*
+ * Attempt to save a db with an empty filepath.
+ */
+void test_2()
+{
+	print("Test 2\n");
+	Database<DBTest> db("");
+
+	test_insertion(db);
+	db.save();
+}
+
+/*
+ * Attempt to load a db with an empty filepath
+ */
+void test_3()
+{
+	print("Test 3\n");
+	Database<DBTest> db("");
+	db.load();
+}
+
 int main(int argc, char **argv)
 {
 	test_0();
 	test_1();
+	test_2();
+	test_3();
 
 	return 0;
 }