Added a simple program that tests a disk's write speed

.gitignore

@@ -14,3 +14,8 @@ Cargo.lock
 # MSVC Windows builds of rustc generate these, which store debugging information
 *.pdb
 
+
+
+# Added by cargo
+
+/target

Cargo.toml

@@ -0,0 +1,12 @@
+[package]
+name = "hardware-tests"
+version = "0.1.0"
+edition = "2021"
+
+[[bin]]
+name = "hdtest"
+path = "src/hdtest.rs"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]

src/hdtest.rs

@@ -0,0 +1,25 @@
+use std::fs;
+use std::process::Command;
+
+fn main() {
+    // run the dd command with a block size of 1 MB, 10K times (10GB file)
+    let output = Command::new("dd")
+        .arg("bs=1M")
+        .arg("count=10240")
+        .arg("if=/dev/zero")
+        .arg("of=./speed-test")
+        .output()
+        .expect("Failed to execute command");
+
+    // check that the command succeeded
+    assert!(output.status.success());
+
+    // for whatever reason, `dd` output ends up in stderr
+    println!("{}", String::from_utf8_lossy(&output.stderr));
+
+    // remove the test file
+    match fs::remove_file("./speed-test") {
+        Ok(()) => println!("Cleaning up..."),
+        Err(e) => println!("There was a problem during cleanup - {}", e),
+    }
+}