use svg_pie_chart::create_pie_chart;

// (label, ratio, color)
let case = [
    ("Red", 0.5, "#fe5555"),
    ("Green", 0.10, "#55fe55"),
    ("Blue", 0.25, "#3366fe"),
    ("Other", 0.15, "#999"),
];

let pie_chart = create_pie_chart(
    100,         // width
    100,         // height
    40,          // radius of circle
    (0, 0, 0),   // color of label
    "sans-serif",// font-family of label
    10,          // size of label
    20,          // radius of label's position
    &case        // statuses of pies
);

assert!(pie_chart.is_ok());