leptos/examples/counters/tests/mod.rs

114 lines
4.5 KiB
Rust

use wasm_bindgen_test::*;
wasm_bindgen_test_configure!(run_in_browser);
use leptos::*;
use web_sys::HtmlElement;
use counters::{Counters, CountersProps};
#[wasm_bindgen_test]
fn inc() {
mount_to_body(|cx| view! { cx, <Counters/> });
let document = leptos::document();
let div = document.query_selector("div").unwrap().unwrap();
let add_counter = div
.first_child()
.unwrap()
.dyn_into::<HtmlElement>()
.unwrap();
// add 3 counters
add_counter.click();
add_counter.click();
add_counter.click();
// check HTML
assert_eq!(div.inner_html(), "<button>Add Counter</button><button>Add 1000 Counters</button><button>Clear Counters</button><p>Total: <span>0</span> from <span>3</span> counters.</p><ul><li><button>-1</button><input type=\"text\"><span>0</span><button>+1</button><button>x</button></li><li><button>-1</button><input type=\"text\"><span>0</span><button>+1</button><button>x</button></li><li><button>-1</button><input type=\"text\"><span>0</span><button>+1</button><button>x</button></li></ul>");
let counters = div
.query_selector("ul")
.unwrap()
.unwrap()
.unchecked_into::<HtmlElement>()
.children();
// click first counter once, second counter twice, etc.
// `NodeList` isn't a `Vec` so we iterate over it in this slightly awkward way
for idx in 0..counters.length() {
let counter = counters.item(idx).unwrap();
let inc_button = counter
.first_child()
.unwrap()
.next_sibling()
.unwrap()
.next_sibling()
.unwrap()
.next_sibling()
.unwrap()
.unchecked_into::<HtmlElement>();
for _ in 0..=idx {
inc_button.click();
}
}
assert_eq!(div.inner_html(), "<button>Add Counter</button><button>Add 1000 Counters</button><button>Clear Counters</button><p>Total: <span>6</span> from <span>3</span> counters.</p><ul><li><button>-1</button><input type=\"text\"><span>1</span><button>+1</button><button>x</button></li><li><button>-1</button><input type=\"text\"><span>2</span><button>+1</button><button>x</button></li><li><button>-1</button><input type=\"text\"><span>3</span><button>+1</button><button>x</button></li></ul>");
// remove the first counter
counters
.item(0)
.unwrap()
.last_child()
.unwrap()
.unchecked_into::<HtmlElement>()
.click();
assert_eq!(div.inner_html(), "<button>Add Counter</button><button>Add 1000 Counters</button><button>Clear Counters</button><p>Total: <span>5</span> from <span>2</span> counters.</p><ul><li><button>-1</button><input type=\"text\"><span>2</span><button>+1</button><button>x</button></li><li><button>-1</button><input type=\"text\"><span>3</span><button>+1</button><button>x</button></li></ul>");
// decrement all by 1
for idx in 0..counters.length() {
let counter = counters.item(idx).unwrap();
let dec_button = counter
.first_child()
.unwrap()
.unchecked_into::<HtmlElement>();
dec_button.click();
}
run_scope(create_runtime(), move |cx| {
// we can use RSX in test comparisons!
// note that if RSX template creation is bugged, this probably won't catch it
// (because the same bug will be reproduced in both sides of the assertion)
// so I use HTML tests for most internal testing like this
// but in user-land testing, RSX comparanda are cool
assert_eq!(
div.outer_html(),
view! { cx,
<div>
<button>"Add Counter"</button>
<button>"Add 1000 Counters"</button>
<button>"Clear Counters"</button>
<p>"Total: "<span>"3"</span>" from "<span>"2"</span>" counters."</p>
<ul>
<li>
<button>"-1"</button>
<input type="text"/>
<span>"1"</span>
<button>"+1"</button>
<button>"x"</button>
</li>
<li>
<button>"-1"</button>
<input type="text"/>
<span>"2"</span>
<button>"+1"</button>
<button>"x"</button>
</li>
</ul>
</div>
}
.outer_html()
);
});
}