Call present at the end of example to make sure an error is thrown for

siefkenj · siefkenj · commit 1b85ad0dca38 · 2021-06-02T13:53:19.000-04:00
a missing file
diff --git a/examples/layout.rs b/examples/layout.rs
@@ -36,6 +36,7 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
         .legend(|(x, y)| PathElement::new(vec![(x, y), (x + 20, y)], &RED));
 
     cc.configure_series_labels().border_style(&BLACK).draw()?;
+    root.present()?;
 
     Ok(())
 }

Original file line number	Diff line number	Diff line change
`@@ -36,6 +36,7 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {`
`36`	`36`	`.legend(\|(x, y)\| PathElement::new(vec![(x, y), (x + 20, y)], &RED));`
`37`	`37`
`38`	`38`	`cc.configure_series_labels().border_style(&BLACK).draw()?;`
	`39`	`+ root.present()?;`
`39`	`40`
`40`	`41`	`Ok(())`
`41`	`42`	`}`