我有一个返回 <input type="search" class="form-control" data-table="table-striped table-bordered table-hover" id="autocomplete" name="search">
<table class="table table-striped table-bordered table-hover">
</table>
<?php
$servername = "localhost";
$username = "root";
$password = "";
$dbname = "msk";
$conn = new mysqli($servername, $username, $password, $dbname);
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$query = "select p.productname,p.quantity,p.onesale,p.wholesale,s.fullname from productdetails p , supplier s where s.supplierid = p.supplierID";
$resultt = $conn->query($query);
$total_records = mysqli_num_rows($resultt);
$per_page=5;
if (isset($_GET["page"])) {
$page = $_GET["page"];
}
else {
$page=1;
}
$start_from = ($page-1) * $per_page;
$total_pages = ceil($total_records / $per_page);
echo "<div class=\"widget-foot\">";
echo "<ul class=\"pagination pagination-sm pull-right\" dir=\"rtl\">";
if($page<$total_pages) {
echo "<li><a href='Show_Product.php?page=" . ($page + 1) . "'>Next</a></li>";
}
for ($i=$total_pages; $i>=1; $i--) {
echo "<li><a href='Show_Product.php?page=".$i."'>".$i."</a></li>";
};
if($page>1){
echo "<li><a href='Show_Product.php?page=".($page-1)."'>Previous</a></li>";
}
echo"</ul>";
echo"<div class=\"clearfix\"></div>";
$conn ->close();
?>
的函数，其中：
Result<(), MyError>我目前正在做以下事情：
enum MyError {Error1, Error2}
这有效，但看起来很尴尬。起初我打算这样做：
#[test]
fn test_result_function() {
assert_eq!((), result_function().unwrap());
}
但是当它没有问题时，测试结果并没有在任何地方给出错误。我该如何测试这个功能？
答案 0 :(得分：3)
怎么样
assert_eq!(Ok(()), result_function());
这需要
#[derive(PartialEq,Debug)]
enum MyError{Error1, Error2}
工作并会告诉你
`(left == right)` (left: `Ok(())`, right: `Err(Error1)`)'
当您的result_function在测试显示它应该返回Error1时返回Ok(())时进行测试。