allow use cargo test --examples to run all the examples

Author: 38

examples/animation.rs

@@ -56,3 +56,6 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
 
     Ok(())
 }
+
+#[test]
+fn entry_point() { main().unwrap() }

examples/area-chart.rs

@@ -45,3 +45,5 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
 
     Ok(())
 }
+#[test]
+fn entry_point() { main().unwrap() }

examples/blit-bitmap.rs

@@ -31,3 +31,5 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
     chart.draw_series(std::iter::once(elem))?;
     Ok(())
 }
+#[test]
+fn entry_point() { main().unwrap() }

examples/boxplot.rs

@@ -219,3 +219,5 @@ fn get_data() -> String {
 ",
     )
 }
+#[test]
+fn entry_point() { main().unwrap() }

examples/chart.rs

@@ -88,3 +88,5 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
 
     Ok(())
 }
+#[test]
+fn entry_point() { main().unwrap() }

examples/console.rs

@@ -191,3 +191,5 @@ fn main() -> Result<(), Box<dyn Error>> {
     draw_chart(b)?;
     Ok(())
 }
+#[test]
+fn entry_point() { main().unwrap() }

examples/errorbar.rs

@@ -88,3 +88,5 @@ fn down_sample(data: &[(f64, f64)]) -> Vec<(f64, f64, f64, f64)> {
         .collect();
     down_sampled
 }
+#[test]
+fn entry_point() { main().unwrap() }

examples/histogram.rs

@@ -33,3 +33,5 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
 
     Ok(())
 }
+#[test]
+fn entry_point() { main().unwrap() }

examples/mandelbrot.rs

@@ -61,3 +61,5 @@ fn mandelbrot_set(
         return (c.0, c.1, cnt);
     });
 }
+#[test]
+fn entry_point() { main().unwrap() }

examples/matshow.rs

@@ -50,3 +50,5 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
 
     Ok(())
 }
+#[test]
+fn entry_point() { main().unwrap() }