feat: Add support for disabling pure tests

Cargo.toml

@@ -31,6 +31,7 @@ tempfile = "3.10.1"
 [features]
 default = []
 openssl_src = ["dep:openssl-sys"]
+pure_tests = []
 
 [profile.release]
 debug = "limited"

flake.nix

@@ -113,6 +113,8 @@
             inherit cargoArtifacts;
             partitions = 1;
             partitionType = "count";
+
+            cargoNextestExtraArgs = "--no-fail-fast --features pure_tests";
           });
         };
 

src/targets/fs.rs

@@ -119,6 +119,7 @@ impl From<&Config> for FileSystemBackupTarget {
 mod tests {
     use super::*;
 
+    #[cfg(not(feature="pure_tests"))]
     #[tokio::test]
     async fn test_backup() {
         let temp_dir = tempfile::tempdir().expect("a temporary directory");