Add basic benchmarks

benches/benchmarks.rs

@@ -0,0 +1,45 @@
+#![feature(test)]
+
+extern crate test;
+
+#[cfg(test)]
+mod tests {
+    use starship::{modules, print};
+    use test::Bencher;
+    use clap::{App, Arg};
+
+    #[bench]
+    fn full_prompt_bench(b: &mut Bencher) {
+        b.iter(||{
+            let args = App::new("starship")
+                .arg(Arg::with_name("status_code"))
+                .get_matches_from(vec!["starship", "0"]);
+
+            starship::print::prompt(args)
+        });
+    }
+
+    #[bench]
+    fn char_section_bench(b: &mut Bencher) {
+        b.iter(|| {
+            let args = App::new("starship")
+                .arg(Arg::with_name("status_code"))
+                .get_matches_from(vec!["starship", "0"]);
+            
+            let segment = modules::handle("char", &args);
+            print::print_segment(segment)
+        });
+    }
+
+    #[bench]
+    fn dir_section_bench(b: &mut Bencher) {
+        b.iter(|| {
+            let args = App::new("starship")
+                .arg(Arg::with_name("status_code"))
+                .get_matches_from(vec!["starship", "0"]);
+            
+            let segment = modules::handle("dir", &args);
+            print::print_segment(segment)
+        });
+    }
+}