1 files changed, 26 insertions, 0 deletions
diff --git a/tests/walk.rs b/tests/walk.rs
new file mode 100644
index 0000000..5f2d3d2
--- /dev/null
+++ b/tests/walk.rs
@@ -0,0 +1,26 @@
+use std::error::Error;
+use std::fs::File;
+use std::io::Write;
+use std::path::PathBuf;
+
+use tempdir::TempDir;
+
+use diskus::Walk;
+
+#[test]
+fn size_of_single_file() -> Result<(), Box<dyn Error>> {
+    let tmp_dir = TempDir::new("diskus-tests")?;
+
+    let file_path = tmp_dir.path().join("file-100-byte");
+    File::create(&file_path)?.write(&vec![0u8; 100])?;
+
+    let num_threads = 1;
+    let root_directories = &[PathBuf::from(file_path)];
+    let walk = Walk::new(root_directories, num_threads);
+    let (size_in_bytes, errors) = walk.run();
+
+    assert!(errors.is_empty());
+    assert_eq!(size_in_bytes, 100);
+
+    Ok(())
+}