tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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HTMLCollection-live-mutations.window.js (2386B)

      1 function testHTMLCollection(name, hooks) {
      2  test(() => {
      3    const nodes = {
      4      root: document.createElement("div"),
      5      div1: document.createElement("div"),
      6      div2: document.createElement("div"),
      7      p: document.createElement("p")
      8    };
      9 
     10    nodes.div1.id = "div1";
     11    nodes.div2.id = "div2";
     12 
     13    const list = nodes.root.getElementsByTagName("div");
     14 
     15    hooks.initial(list, nodes);
     16 
     17    nodes.root.appendChild(nodes.div1);
     18    nodes.root.appendChild(nodes.p);
     19    nodes.root.appendChild(nodes.div2);
     20 
     21    hooks.afterInsertion(list, nodes);
     22 
     23    nodes.root.removeChild(nodes.div1);
     24 
     25    hooks.afterRemoval(list, nodes);
     26  }, `HTMLCollection live mutations: ${name}`);
     27 }
     28 
     29 testHTMLCollection("HTMLCollection.length", {
     30  initial(list) {
     31    assert_equals(list.length, 0);
     32  },
     33  afterInsertion(list) {
     34    assert_equals(list.length, 2);
     35  },
     36  afterRemoval(list) {
     37    assert_equals(list.length, 1);
     38  }
     39 });
     40 
     41 testHTMLCollection("HTMLCollection.item(index)", {
     42  initial(list) {
     43    assert_equals(list.item(0), null);
     44  },
     45  afterInsertion(list, nodes) {
     46    assert_equals(list.item(0), nodes.div1);
     47    assert_equals(list.item(1), nodes.div2);
     48  },
     49  afterRemoval(list, nodes) {
     50    assert_equals(list.item(0), nodes.div2);
     51  }
     52 });
     53 
     54 testHTMLCollection("HTMLCollection[index]", {
     55  initial(list) {
     56    assert_equals(list[0], undefined);
     57  },
     58  afterInsertion(list, nodes) {
     59    assert_equals(list[0], nodes.div1);
     60    assert_equals(list[1], nodes.div2);
     61  },
     62  afterRemoval(list, nodes) {
     63    assert_equals(list[0], nodes.div2);
     64  }
     65 });
     66 
     67 testHTMLCollection("HTMLCollection.namedItem(index)", {
     68  initial(list) {
     69    assert_equals(list.namedItem("div1"), null);
     70    assert_equals(list.namedItem("div2"), null);
     71  },
     72  afterInsertion(list, nodes) {
     73    assert_equals(list.namedItem("div1"), nodes.div1);
     74    assert_equals(list.namedItem("div2"), nodes.div2);
     75  },
     76  afterRemoval(list, nodes) {
     77    assert_equals(list.namedItem("div1"), null);
     78    assert_equals(list.namedItem("div2"), nodes.div2);
     79  }
     80 });
     81 
     82 testHTMLCollection("HTMLCollection ownPropertyNames", {
     83  initial(list) {
     84    assert_object_equals(Object.getOwnPropertyNames(list), []);
     85  },
     86  afterInsertion(list) {
     87    assert_object_equals(Object.getOwnPropertyNames(list), ["0", "1", "div1", "div2"]);
     88  },
     89  afterRemoval(list) {
     90    assert_object_equals(Object.getOwnPropertyNames(list), ["0", "div2"]);
     91  }
     92 });