From 215b416de8c71686311edca29f71cdf4223fc8e5 Mon Sep 17 00:00:00 2001
From: michaelvlach <vlach.michael@gmail.com>
Date: Sat, 20 Aug 2022 21:49:35 +0200
Subject: [PATCH 1/4] Update file_storage.rs

---
 src/storage/file_storage.rs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/storage/file_storage.rs b/src/storage/file_storage.rs
index e29a338e7..8444dca7f 100644
--- a/src/storage/file_storage.rs
+++ b/src/storage/file_storage.rs
@@ -10,4 +10,9 @@ mod tests {
     fn file_storage() {
         let _storage = FileStorage::default();
     }
+
+    #[test]
+    fn create_new_file() {
+        let filename = "./file_storage_test.agdb";
+    }
 }

From 977185c13f3aeca52403a10d58de27fa41aa27dc Mon Sep 17 00:00:00 2001
From: michaelvlach <vlach.michael@gmail.com>
Date: Sat, 20 Aug 2022 23:24:37 +0200
Subject: [PATCH 2/4] Update file_storage.rs

---
 src/storage/file_storage.rs | 20 ++++++++++++++++++--
 1 file changed, 18 insertions(+), 2 deletions(-)

diff --git a/src/storage/file_storage.rs b/src/storage/file_storage.rs
index 8444dca7f..3397f9df4 100644
--- a/src/storage/file_storage.rs
+++ b/src/storage/file_storage.rs
@@ -1,10 +1,25 @@
 #[allow(dead_code)]
 #[derive(Default)]
-pub(crate) struct FileStorage {}
+pub(crate) struct FileStorage {
+    filename: String,
+}
+
+impl From<&str> for FileStorage {
+    fn from(filename: &str) -> Self {
+        FileStorage::from(filename.to_string())
+    }
+}
+
+impl From<String> for FileStorage {
+    fn from(filename: String) -> Self {
+        FileStorage { filename }
+    }
+}
 
 #[cfg(test)]
 mod tests {
     use super::*;
+    use crate::test_utilities::test_file::TestFile;
 
     #[test]
     fn file_storage() {
@@ -13,6 +28,7 @@ mod tests {
 
     #[test]
     fn create_new_file() {
-        let filename = "./file_storage_test.agdb";
+        let test_file = TestFile::from("./file_storage_test.agdb");
+        let _storage = FileStorage::from(test_file.filename);
     }
 }

From 0f4ec21e8192925c15dbe63cce6f3b35a99ecc60 Mon Sep 17 00:00:00 2001
From: michaelvlach <vlach.michael@gmail.com>
Date: Sat, 20 Aug 2022 23:58:33 +0200
Subject: [PATCH 3/4] Update file_storage.rs

---
 src/storage/file_storage.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/storage/file_storage.rs b/src/storage/file_storage.rs
index 3397f9df4..9d70e645e 100644
--- a/src/storage/file_storage.rs
+++ b/src/storage/file_storage.rs
@@ -29,6 +29,6 @@ mod tests {
     #[test]
     fn create_new_file() {
         let test_file = TestFile::from("./file_storage_test.agdb");
-        let _storage = FileStorage::from(test_file.filename);
+        let _storage = FileStorage::from(test_file.file_name().clone());
     }
 }

From 8175700c0e09efe7ac7d7a4ef618a03af006c1da Mon Sep 17 00:00:00 2001
From: michaelvlach <vlach.michael@gmail.com>
Date: Sun, 21 Aug 2022 00:12:42 +0200
Subject: [PATCH 4/4] Update file_storage.rs

---
 src/storage/file_storage.rs | 27 +++++++++++++++++++++------
 1 file changed, 21 insertions(+), 6 deletions(-)

diff --git a/src/storage/file_storage.rs b/src/storage/file_storage.rs
index 9d70e645e..bd30f4b1d 100644
--- a/src/storage/file_storage.rs
+++ b/src/storage/file_storage.rs
@@ -1,7 +1,9 @@
+use std::fs::{File, OpenOptions};
+
 #[allow(dead_code)]
-#[derive(Default)]
 pub(crate) struct FileStorage {
     filename: String,
+    file: File,
 }
 
 impl From<&str> for FileStorage {
@@ -12,7 +14,15 @@ impl From<&str> for FileStorage {
 
 impl From<String> for FileStorage {
     fn from(filename: String) -> Self {
-        FileStorage { filename }
+        FileStorage {
+            file: OpenOptions::new()
+                .write(true)
+                .create(true)
+                .read(true)
+                .open(&filename)
+                .unwrap(),
+            filename,
+        }
     }
 }
 
@@ -20,15 +30,20 @@ impl From<String> for FileStorage {
 mod tests {
     use super::*;
     use crate::test_utilities::test_file::TestFile;
+    use std::path::Path;
 
     #[test]
-    fn file_storage() {
-        let _storage = FileStorage::default();
+    fn create_new_file() {
+        let test_file = TestFile::from("./file_storage_test01.agdb");
+        let _storage = FileStorage::from(test_file.file_name().as_str());
+
+        assert!(Path::new(test_file.file_name()).exists());
     }
 
     #[test]
-    fn create_new_file() {
-        let test_file = TestFile::from("./file_storage_test.agdb");
+    fn open_existing_file() {
+        let test_file = TestFile::from("./file_storage_test02.agdb");
+        File::create(test_file.file_name()).unwrap();
         let _storage = FileStorage::from(test_file.file_name().clone());
     }
 }