pb: add test for max_refresh_rate finish

Closed #45

src/pb.rs

@@ -503,6 +503,7 @@ fn fract_dur(d: Duration) -> f64 {
 #[cfg(test)]
 mod test {
     use pb::{ProgressBar, Units};
+    use std::time::Duration;
 
     #[test]
     fn add() {
@@ -611,4 +612,34 @@ mod test {
             "\r0 B / 10 B [--------------------------------------------------]  ",
         );
     }
+
+    #[test]
+    fn max_refresh_rate_finish() {
+        let count = 500;
+        let mut out = Vec::new();
+        let mut pb = ProgressBar::on(&mut out, count);
+        pb.format("╢▌▌░╟");
+        pb.set_width(Some(80));
+        pb.set_max_refresh_rate(Some(Duration::from_millis(100)));
+        pb.show_speed = false;
+        pb.show_time_left = false;
+        pb.add(count / 2);
+        pb.add(count / 2);
+        let mut split = std::str::from_utf8(&out)
+            .unwrap()
+            .trim_start_matches('\r')
+            .split('\r');
+        assert_eq!(
+            split.next(),
+            Some(
+                "250 / 500 ╢▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌░░░░░░░░░░░░░░░░░░░░░░░░░░░░░╟ 50.00 %"
+            )
+        );
+        assert_eq!(
+            split.next(),
+            Some(
+                "500 / 500 ╢▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌▌╟ 100.00 %"
+            )
+        );
+    }
 }

tests/lib.rs

@@ -120,4 +120,3 @@ fn final_redraw_max_refresh_rate() {
     }
     pb.finish_println("done!");
 }
-