[librsvg: 5/17] Test FitLargestScale with no maximum size

[Marge Bot <marge-bot src gnome org>]

commit d33fd8e97b2e69f2db772b205bb69e764e6157ef
Author: Federico Mena Quintero <federico gnome org>
Date:   Mon Feb 21 14:35:39 2022 -0600

    Test FitLargestScale with no maximum size
    
    Part-of: <https://gitlab.gnome.org/GNOME/librsvg/-/merge_requests/669>

 src/bin/rsvg-convert.rs | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
---
diff --git a/src/bin/rsvg-convert.rs b/src/bin/rsvg-convert.rs
index 2610e9ddc..6cfba0230 100644
--- a/src/bin/rsvg-convert.rs
+++ b/src/bin/rsvg-convert.rs
@@ -77,6 +77,10 @@ struct Scale {
 }
 
 impl Scale {
+    pub fn new(x: f64, y: f64) -> Self {
+        Self { x, y }
+    }
+
     #[allow(clippy::float_cmp)]
     pub fn is_identity(&self) -> bool {
         self.x == 1.0 && self.y == 1.0
@@ -1226,4 +1230,18 @@ mod sizing_tests {
             Size::new(50.0, 100.0),
         );
     }
+
+    #[test]
+    fn fit_largest_scale_no_max_size() {
+        let strategy = ResizeStrategy::FitLargestScale(
+            Scale::new(2.0, 3.0),
+            None,
+            None,
+        );
+
+        assert_eq!(
+            strategy.apply(&Size::new(1.0, 2.0), false).unwrap(),
+            Size::new(2.0, 6.0),
+        );
+    }
 }