fune/xpcom/tests/unit/test_process_directives.js

const { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm");

function run_test() {
  Components.manager.autoRegister(
    do_get_file("data/process_directive.manifest")
  );

  let isChild =
    Services.appinfo.processType == Services.appinfo.PROCESS_TYPE_CONTENT;

  if (isChild) {
    Assert.equal(
      false,
      "@mozilla.org/xpcom/tests/MainProcessDirectiveTest;1" in Cc
    );
  } else {
    let svc = Cc[
      "@mozilla.org/xpcom/tests/MainProcessDirectiveTest;1"
    ].createInstance(Ci.nsIProperty);
    Assert.equal(svc.name, "main process");
  }

  if (!isChild) {
    Assert.equal(
      false,
      "@mozilla.org/xpcom/tests/ChildProcessDirectiveTest;1" in Cc
    );
  } else {
    let svc = Cc[
      "@mozilla.org/xpcom/tests/ChildProcessDirectiveTest;1"
    ].createInstance(Ci.nsIProperty);
    Assert.equal(svc.name, "child process");
  }
}