Implemented benchmarks

README.md

@@ -118,4 +118,6 @@ cargo test -- --test-threads=1
 cargo test test -- --test-threads=1
 # Run only integration tests
 cargo test integration -- --test-threads=1
+# Run benchmarks (requires nightly toolchain!)
+cargo +nightly bench
 ```

benches/benchmark.rs

@@ -0,0 +1,60 @@
+#![feature(test)]
+extern crate test;
+
+#[cfg(test)]
+mod bench {
+    use std::env;
+    use std::process::Command;
+    use test::Bencher;
+
+    #[bench]
+    fn no_translation(b: &mut Bencher) {
+        b.iter(|| {
+            Command::new("wslgit")
+                .args(&["--version"])
+                .env("WSLGIT_USE_INTERACTIVE_SHELL", "false")
+                .output()
+        })
+    }
+
+    #[bench]
+    fn translate_absolute_argument(b: &mut Bencher) {
+        let p = env::current_dir()
+            .unwrap()
+            .as_path()
+            .join("src\\main.rs")
+            .as_path()
+            .to_string_lossy()
+            .into_owned();
+        let file_path = p.as_str();
+
+        b.iter(|| {
+            Command::new("wslgit")
+                .args(&["log", "-n1", "--oneline", "--", file_path])
+                .env("WSLGIT_USE_INTERACTIVE_SHELL", "false")
+                .output()
+        })
+    }
+
+    #[bench]
+    fn translate_relative_argument(b: &mut Bencher) {
+        let file_path = "src\\main.rs";
+
+        b.iter(|| {
+            Command::new("wslgit")
+                .args(&["log", "-n1", "--oneline", "--", file_path])
+                .env("WSLGIT_USE_INTERACTIVE_SHELL", "false")
+                .output()
+        })
+    }
+
+    #[bench]
+    fn translate_output(b: &mut Bencher) {
+        b.iter(|| {
+            Command::new("wslgit")
+                .args(&["rev-parse", "--show-toplevel"])
+                .env("WSLGIT_USE_INTERACTIVE_SHELL", "false")
+                .output()
+        })
+    }
+}