test_session_migration_show_reason.js

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/* Any copyright is dedicated to the Public Domain.

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

"use strict";

const { SessionMigration } = ChromeUtils.importESModule(

  "moz-src:///browser/components/sessionstore/SessionMigration.sys.mjs"

);

add_task(async function test_migrated_state_has_show_reason() {

  let profileDir = do_get_profile().path;

  let fromPath = PathUtils.join(profileDir, "migration_in.jsonlz4");

  let toPath = PathUtils.join(profileDir, "migration_out.jsonlz4");

  await IOUtils.writeJSON(

    fromPath,

      windows: [

          tabs: [{ entries: [{ url: "https://example.com/" }], index: 1 }],

},

],

},

    { compress: true }

);

  await SessionMigration.migrate(fromPath, toPath);

  let state = await IOUtils.readJSON(toPath, { decompress: true });

  let { formdata } = state.windows[0].tabs[0];

  Assert.equal(formdata.url, "about:welcomeback");

  Assert.equal(

    formdata.id.showReason,

    "profile_refresh",

    "about:welcomeback is told why it is shown"

);

  Assert.equal(

    formdata.id.sessionData.windows[0].tabs[0].entries[0].url,

    "https://example.com/",

    "The migrated session is still passed to the page"

);

});