From da287f84b193e585549aebcafa9c010f1460afd9 Mon Sep 17 00:00:00 2001
From: Nikita Sivukhin <sivukhin@turso.tech>
Date: Wed, 30 Jul 2025 00:44:05 +0400
Subject: [PATCH] add blocking implementation of filesystem for tests

---
 packages/turso-sync/src/filesystem/test.rs | 97 ++++++++++++++++++++++
 1 file changed, 97 insertions(+)
 create mode 100644 packages/turso-sync/src/filesystem/test.rs

diff --git a/packages/turso-sync/src/filesystem/test.rs b/packages/turso-sync/src/filesystem/test.rs
new file mode 100644
index 000000000..207977e0e
--- /dev/null
+++ b/packages/turso-sync/src/filesystem/test.rs
@@ -0,0 +1,97 @@
+use std::{io::Write, sync::Arc};
+
+use crate::{filesystem::Filesystem, test_context::TestContext, Result};
+
+pub struct TestFilesystem {
+    ctx: Arc<TestContext>,
+}
+
+impl TestFilesystem {
+    pub fn new(ctx: Arc<TestContext>) -> Self {
+        Self { ctx }
+    }
+}
+
+impl Filesystem for TestFilesystem {
+    type File = std::fs::File;
+
+    async fn exists_file(&self, path: &std::path::Path) -> Result<bool> {
+        self.ctx.faulty_call("exists_file_start").await?;
+        let result = std::fs::exists(path)?;
+        self.ctx.faulty_call("exists_file_end").await?;
+        Ok(result)
+    }
+
+    async fn remove_file(&self, path: &std::path::Path) -> Result<()> {
+        self.ctx.faulty_call("remove_file_start").await?;
+        match std::fs::remove_file(path) {
+            Ok(()) => Result::Ok(()),
+            Err(e) if e.kind() == std::io::ErrorKind::NotFound => Result::Ok(()),
+            Err(e) => Err(e.into()),
+        }?;
+        self.ctx.faulty_call("remove_file_end").await?;
+        Ok(())
+    }
+
+    async fn create_file(&self, path: &std::path::Path) -> Result<Self::File> {
+        self.ctx.faulty_call("create_file_start").await?;
+        let result = std::fs::OpenOptions::new()
+            .write(true)
+            .create_new(true)
+            .open(path)?;
+        self.ctx.faulty_call("create_file_end").await?;
+        Ok(result)
+    }
+
+    async fn open_file(&self, path: &std::path::Path) -> Result<Self::File> {
+        self.ctx.faulty_call("open_file_start").await?;
+        let result = std::fs::OpenOptions::new()
+            .read(true)
+            .write(true)
+            .open(path)?;
+        self.ctx.faulty_call("open_file_end").await?;
+        Ok(result)
+    }
+
+    async fn copy_file(&self, src: &std::path::Path, dst: &std::path::Path) -> Result<()> {
+        self.ctx.faulty_call("copy_file_start").await?;
+        std::fs::copy(src, dst)?;
+        self.ctx.faulty_call("copy_file_end").await?;
+        Ok(())
+    }
+
+    async fn rename_file(&self, src: &std::path::Path, dst: &std::path::Path) -> Result<()> {
+        self.ctx.faulty_call("rename_file_start").await?;
+        std::fs::rename(src, dst)?;
+        self.ctx.faulty_call("rename_file_end").await?;
+        Ok(())
+    }
+
+    async fn truncate_file(&self, file: &Self::File, size: usize) -> Result<()> {
+        self.ctx.faulty_call("truncate_file_start").await?;
+        file.set_len(size as u64)?;
+        self.ctx.faulty_call("truncate_file_end").await?;
+        Ok(())
+    }
+
+    async fn write_file(&self, file: &mut Self::File, buf: &[u8]) -> Result<()> {
+        self.ctx.faulty_call("write_file_start").await?;
+        file.write_all(buf)?;
+        self.ctx.faulty_call("write_file_end").await?;
+        Ok(())
+    }
+
+    async fn sync_file(&self, file: &Self::File) -> Result<()> {
+        self.ctx.faulty_call("sync_file_start").await?;
+        file.sync_all()?;
+        self.ctx.faulty_call("sync_file_end").await?;
+        Ok(())
+    }
+
+    async fn read_file(&self, path: &std::path::Path) -> Result<Vec<u8>> {
+        self.ctx.faulty_call("read_file_start").await?;
+        let data = std::fs::read(path)?;
+        self.ctx.faulty_call("read_file_end").await?;
+        Ok(data)
+    }
+}