browser_jsonview_expand_collapse.js

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/* Any copyright is dedicated to the Public Domain.

 * http://creativecommons.org/publicdomain/zero/1.0/ */

"use strict";

ChromeUtils.defineLazyGetter(this, "jsonViewStrings", () => {

  return Services.strings.createBundle(

    "chrome://devtools/locale/jsonview.properties"

);

});

const TEST_JSON_URL = URL_ROOT + "array_json.json";

const EXPAND_THRESHOLD = 100 * 1024;

add_task(async function () {

  info("Test expand/collapse small JSON started");

  await addJsonViewTab(TEST_JSON_URL);

  /* Initial sanity check */

  const countBefore = await getElementCount(".treeRow");

  is(countBefore, 6, "There must be six rows");

  /* Test the "Collapse All" button */

  let selector = ".jsonPanelBox .toolbar button.collapse";

  await clickJsonNode(selector);

  let countAfter = await getElementCount(".treeRow");

  is(countAfter, 3, "There must be three rows");

  /* Test the "Expand All" button */

  selector = ".jsonPanelBox .toolbar button.expand";

is(

    await getElementText(selector),

    jsonViewStrings.GetStringFromName("jsonViewer.ExpandAll"),

    "Expand button doesn't warn that the action will be slow"

);

  await clickJsonNode(selector);

  countAfter = await getElementCount(".treeRow");

  is(countAfter, 6, "There must be six expanded rows");

});

add_task(async function () {

  info("Test expand button for big JSON started");

  const json = JSON.stringify({

    data: Array(1e5)

      .fill()

      .map(() => "hoot"),

    status: "ok",

});

  Assert.greater(

    json.length,

    EXPAND_THRESHOLD,

    "The generated JSON must be larger than 100kB"

);

  await addJsonViewTab("data:application/json," + json);

is(

    await getElementText(".jsonPanelBox .toolbar button.expand"),

    jsonViewStrings.GetStringFromName("jsonViewer.ExpandAllSlow"),

    "Expand button warns that the action will be slow"

);

});