chrome/browser/chromeos/printing/printers_map_unittest.cc

// Copyright 2019 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "chrome/browser/chromeos/printing/printers_map.h"

#include "base/macros.h"
#include "base/stl_util.h"
#include "testing/gtest/include/gtest/gtest.h"

namespace chromeos {
namespace {

bool IsPrinterInPrinters(const std::vector<Printer>& printers,
                         const Printer& printer) {
  for (const auto& p : printers) {
    if (p.id() == printer.id()) {
      return true;
    }
  }
  return false;
}

CupsPrinterStatus CreatePrinterStatus(const std::string& printer_id) {
  CupsPrinterStatus cups_printer_status(printer_id);
  cups_printer_status.AddStatusReason(
      CupsPrinterStatus::CupsPrinterStatusReason::Reason::kNoError,
      CupsPrinterStatus::CupsPrinterStatusReason::Severity::kReport);
  return cups_printer_status;
}

void ExpectPrinterStatusesEqual(const CupsPrinterStatus expected_printer_status,
                                const CupsPrinterStatus actual_printer_status) {
  EXPECT_EQ(expected_printer_status.GetPrinterId(),
            actual_printer_status.GetPrinterId());

  auto expected_status_reasons = expected_printer_status.GetStatusReasons();
  auto actual_status_reasons = actual_printer_status.GetStatusReasons();
  EXPECT_EQ(expected_status_reasons.size(), actual_status_reasons.size());

  for (const auto& expected_status_reason : expected_status_reasons) {
    for (const auto& actual_status_reason : actual_status_reasons) {
      EXPECT_EQ(expected_status_reason.GetReason(),
                actual_status_reason.GetReason());
      EXPECT_EQ(expected_status_reason.GetSeverity(),
                actual_status_reason.GetSeverity());
    }
  }
}

}  // namespace

class PrintersMapTest : public testing::Test {
 public:
  PrintersMapTest() = default;
  ~PrintersMapTest() override = default;

  DISALLOW_COPY_AND_ASSIGN(PrintersMapTest);
};

TEST_F(PrintersMapTest, GetAllReturnsEmptyVector) {
  PrintersMap printers_map;

  std::vector<Printer> printers = printers_map.Get();

  EXPECT_EQ(0u, printers.size());
}

TEST_F(PrintersMapTest, GetAllReturnsPrintersFromAllClasses) {
  PrintersMap printers_map;

  Printer discovered_printer = Printer("discovered_id");
  Printer enterprise_printer = Printer("enterprise_id");

  printers_map.Insert(PrinterClass::kEnterprise, enterprise_printer);
  printers_map.Insert(PrinterClass::kDiscovered, discovered_printer);

  auto printers = printers_map.Get();

  EXPECT_EQ(2u, printers.size());
  EXPECT_TRUE(IsPrinterInPrinters(printers, discovered_printer));
  EXPECT_TRUE(IsPrinterInPrinters(printers, enterprise_printer));
}

TEST_F(PrintersMapTest, GetByIdReturnsEmptyOptionalWhenNonExistant) {
  PrintersMap printers_map;

  base::Optional<Printer> printer = printers_map.Get("non_existant_id");

  EXPECT_FALSE(printer);
}

TEST_F(PrintersMapTest, GetByIdReturnsPrinterWhenExistant) {
  PrintersMap printers_map;

  Printer expected_printer = Printer("printer_id");
  expected_printer.set_display_name("123");

  printers_map.Insert(PrinterClass::kEnterprise, expected_printer);

  base::Optional<Printer> actual_printer =
      printers_map.Get(expected_printer.id());

  EXPECT_TRUE(actual_printer);
  EXPECT_EQ(expected_printer.id(), actual_printer->id());
  EXPECT_EQ(expected_printer.display_name(), actual_printer->display_name());
}

TEST_F(PrintersMapTest, GetByClassReturnsEmptyVectorWhenNonExistant) {
  PrintersMap printers_map;

  auto printers = printers_map.Get(PrinterClass::kDiscovered);

  EXPECT_EQ(0u, printers.size());
}

TEST_F(PrintersMapTest, GetByClassReturnsPrinters) {
  PrintersMap printers_map;

  Printer discovered_printer = Printer("discovered_id");
  Printer enterprise_printer = Printer("enterprise_id");

  printers_map.Insert(PrinterClass::kEnterprise, enterprise_printer);
  printers_map.Insert(PrinterClass::kDiscovered, discovered_printer);

  auto discovered_printers = printers_map.Get(PrinterClass::kDiscovered);

  EXPECT_EQ(1u, discovered_printers.size());
  EXPECT_EQ(discovered_printer.id(), discovered_printers[0].id());

  auto enterprise_printers = printers_map.Get(PrinterClass::kEnterprise);

  EXPECT_EQ(1u, enterprise_printers.size());
  EXPECT_EQ(enterprise_printer.id(), enterprise_printers[0].id());
}

TEST_F(PrintersMapTest,
       GetByClassAndIdOnlyReturnsEmptyOptionalWhenNonExistant) {
  PrintersMap printers_map;

  base::Optional<Printer> found_printer =
      printers_map.Get(PrinterClass::kDiscovered, "printer_id");

  EXPECT_FALSE(found_printer);
}

TEST_F(PrintersMapTest, GetByClassAndIdOnlyReturnsFromCorrectClass) {
  PrintersMap printers_map;

  const std::string printer1_id = "1";
  Printer printer1 = Printer(printer1_id);
  Printer printer2 = Printer("2");

  printers_map.Insert(PrinterClass::kEnterprise, printer1);
  printers_map.Insert(PrinterClass::kDiscovered, printer2);

  // No printer is found because |printer1| *is not* in kDiscovered.
  base::Optional<Printer> found_printer =
      printers_map.Get(PrinterClass::kDiscovered, printer1_id);

  EXPECT_FALSE(found_printer);

  // Printer found because |printer1| *is* in kEnterprise.
  found_printer = printers_map.Get(PrinterClass::kEnterprise, printer1_id);

  EXPECT_TRUE(found_printer);
  EXPECT_EQ(printer1_id, found_printer->id());
}

TEST_F(PrintersMapTest, InsertAddsPrinterToCorrectClass) {
  PrintersMap printers_map;

  Printer expected_printer = Printer("printer_id");
  expected_printer.set_display_name("123");

  EXPECT_EQ(0u, printers_map.Get(PrinterClass::kAutomatic).size());

  printers_map.Insert(PrinterClass::kAutomatic, expected_printer);

  EXPECT_EQ(1u, printers_map.Get(PrinterClass::kAutomatic).size());
}

TEST_F(PrintersMapTest, GetSecurePrintersReturnsEmptyVectorOnNonExistantClass) {
  PrintersMap printers_map;

  auto printers = printers_map.GetSecurePrinters();

  EXPECT_EQ(0u, printers.size());
}

TEST_F(PrintersMapTest, GetSecurePrintersOnlyReturnsSecurePrinters) {
  PrintersMap printers_map;

  Printer ipp_printer = Printer("ipp");
  ipp_printer.SetUri("ipp://printer");
  printers_map.Insert(PrinterClass::kSaved, ipp_printer);

  Printer ipps_printer = Printer("ipps");
  ipps_printer.SetUri("ipps://printer");
  printers_map.Insert(PrinterClass::kAutomatic, ipps_printer);

  Printer usb_printer = Printer("usb");
  usb_printer.SetUri("usb://printer/path");
  printers_map.Insert(PrinterClass::kDiscovered, usb_printer);

  Printer ippusb_printer = Printer("ippusb");
  ippusb_printer.SetUri("ippusb://printer/path");
  printers_map.Insert(PrinterClass::kEnterprise, ippusb_printer);

  Printer http_printer = Printer("http");
  http_printer.SetUri("http://printer");
  printers_map.Insert(PrinterClass::kDiscovered, http_printer);

  Printer https_printer = Printer("https");
  https_printer.SetUri("https://printer");
  printers_map.Insert(PrinterClass::kDiscovered, https_printer);

  // Only HTTPS, IPPS, IPPUSB, and USB printers are returned.
  auto printers = printers_map.GetSecurePrinters();

  EXPECT_EQ(4u, printers.size());

  EXPECT_TRUE(IsPrinterInPrinters(printers, ipps_printer));
  EXPECT_TRUE(IsPrinterInPrinters(printers, usb_printer));
  EXPECT_TRUE(IsPrinterInPrinters(printers, ippusb_printer));
  EXPECT_TRUE(IsPrinterInPrinters(printers, https_printer));

  EXPECT_FALSE(IsPrinterInPrinters(printers, ipp_printer));
  EXPECT_FALSE(IsPrinterInPrinters(printers, http_printer));
}

TEST_F(PrintersMapTest,
       GetSecurePrintersInClassReturnsEmptyVectorOnNonExistantClass) {
  PrintersMap printers_map;

  auto printers = printers_map.GetSecurePrinters(PrinterClass::kAutomatic);

  EXPECT_EQ(0u, printers.size());
}

TEST_F(PrintersMapTest, GetSecurePrintersInClassOnlyReturnsSecurePrinters) {
  PrintersMap printers_map;

  Printer ipp_printer = Printer("ipp");
  ipp_printer.SetUri("ipp://printer");
  printers_map.Insert(PrinterClass::kSaved, ipp_printer);

  Printer ipps_printer = Printer("ipps");
  ipps_printer.SetUri("ipps://printer");
  printers_map.Insert(PrinterClass::kSaved, ipps_printer);

  Printer usb_printer = Printer("usb");
  usb_printer.SetUri("usb://printer/path");
  printers_map.Insert(PrinterClass::kSaved, usb_printer);

  Printer ippusb_printer = Printer("ippusb");
  ippusb_printer.SetUri("ippusb://printer/path");
  printers_map.Insert(PrinterClass::kSaved, ippusb_printer);

  Printer http_printer = Printer("http");
  http_printer.SetUri("http://printer");
  printers_map.Insert(PrinterClass::kSaved, http_printer);

  // Only IPPS, IPPUSB, and USB printers are returned.
  auto printers = printers_map.GetSecurePrinters(PrinterClass::kSaved);

  EXPECT_EQ(3u, printers.size());

  EXPECT_TRUE(IsPrinterInPrinters(printers, ipps_printer));
  EXPECT_TRUE(IsPrinterInPrinters(printers, usb_printer));
  EXPECT_TRUE(IsPrinterInPrinters(printers, ippusb_printer));

  EXPECT_FALSE(IsPrinterInPrinters(printers, ipp_printer));
  EXPECT_FALSE(IsPrinterInPrinters(printers, http_printer));
}

TEST_F(PrintersMapTest, ClearResetsClass) {
  PrintersMap printers_map;

  Printer printer1 = Printer("id1");
  Printer printer2 = Printer("id2");

  printers_map.Insert(PrinterClass::kEnterprise, printer1);
  printers_map.Insert(PrinterClass::kEnterprise, printer2);

  auto enterprise_printers = printers_map.Get(PrinterClass::kEnterprise);
  EXPECT_EQ(2u, enterprise_printers.size());

  // Calling clear erases the contents of the class.
  printers_map.Clear(PrinterClass::kEnterprise);

  auto empty_printers = printers_map.Get(PrinterClass::kEnterprise);
  EXPECT_EQ(0u, empty_printers.size());
}

TEST_F(PrintersMapTest, ReplacePrintersInClassOverwritesPrinters) {
  PrintersMap printers_map;

  Printer printer1 = Printer("id1");
  Printer printer2 = Printer("id2");

  printers_map.Insert(PrinterClass::kEnterprise, printer1);
  printers_map.Insert(PrinterClass::kEnterprise, printer2);

  auto enterprise_printers = printers_map.Get(PrinterClass::kEnterprise);
  EXPECT_EQ(2u, enterprise_printers.size());

  // Overwriting the printer class with an empty vector should clear the
  // printers.
  printers_map.ReplacePrintersInClass(PrinterClass::kEnterprise,
                                      std::vector<Printer>());

  auto empty_printers = printers_map.Get(PrinterClass::kEnterprise);
  EXPECT_EQ(0u, empty_printers.size());

  // Replacing the printer class with the original enterprise printers restores
  // them.
  printers_map.ReplacePrintersInClass(PrinterClass::kEnterprise,
                                      enterprise_printers);

  auto restored_printers = printers_map.Get(PrinterClass::kEnterprise);
  EXPECT_EQ(2u, restored_printers.size());
}

TEST_F(PrintersMapTest, RemoveSucceedsOnPrinterInClass) {
  PrintersMap printers_map;

  const std::string printer_id = "id1";

  printers_map.Insert(PrinterClass::kEnterprise, Printer(printer_id));

  auto printer = printers_map.Get(printer_id);
  EXPECT_TRUE(printer);
  EXPECT_EQ(printer_id, printer->id());

  printers_map.Remove(PrinterClass::kEnterprise, printer_id);

  printer = printers_map.Get(printer_id);
  EXPECT_FALSE(printer);
}

TEST_F(PrintersMapTest, RemoveDoesNothingOnPrinterNotInClass) {
  PrintersMap printers_map;

  const std::string printer_id = "id1";

  printers_map.Insert(PrinterClass::kEnterprise, Printer(printer_id));

  auto printer = printers_map.Get(printer_id);
  EXPECT_TRUE(printer);
  EXPECT_EQ(printer_id, printer->id());

  // Call remove using a different class, same printer_id and verify the printer
  // is not rmemoved.
  printers_map.Remove(PrinterClass::kDiscovered, printer_id);

  printer = printers_map.Get(printer_id);
  EXPECT_TRUE(printer);
  EXPECT_EQ(printer_id, printer->id());
}

TEST_F(PrintersMapTest, RemoveDoesNothingOnUnknownPrinter) {
  PrintersMap printers_map;

  const std::string printer_id = "id";

  printers_map.Insert(PrinterClass::kEnterprise, Printer(printer_id));

  EXPECT_TRUE(printers_map.Get(printer_id));

  // Call remove using a printer that does not exist in any class and verify the
  // other printers are not changed.
  printers_map.Remove(PrinterClass::kDiscovered, "random_id");

  EXPECT_TRUE(printers_map.Get(printer_id));
}

TEST_F(PrintersMapTest, IsPrinterInClass) {
  PrintersMap printers_map;

  const std::string printer_id = "id";

  // Returns false for non-existent printers.
  EXPECT_FALSE(
      printers_map.IsPrinterInClass(PrinterClass::kEnterprise, "random_id"));

  // Add an enterprise printer. It can be found as an enterprise printer, but
  // not as a discovered printer.
  printers_map.Insert(PrinterClass::kEnterprise, Printer(printer_id));
  EXPECT_TRUE(
      printers_map.IsPrinterInClass(PrinterClass::kEnterprise, printer_id));
  EXPECT_FALSE(
      printers_map.IsPrinterInClass(PrinterClass::kDiscovered, printer_id));
}

TEST_F(PrintersMapTest, PrinterStatusMapSavePrinterStatus) {
  PrintersMap printers_map;
  const std::string printer_id = "id";
  printers_map.Insert(PrinterClass::kDiscovered, Printer(printer_id));
  printers_map.SavePrinterStatus(printer_id, CupsPrinterStatus(printer_id));

  base::Optional<Printer> printer = printers_map.Get(printer_id);
  CupsPrinterStatus printer_status = printer->printer_status();
  EXPECT_EQ(printer_id, printer_status.GetPrinterId());
}

TEST_F(PrintersMapTest, PrinterStatusMapMultipleStatuses) {
  PrintersMap printers_map;
  const std::string printer_id1 = "id1";
  const std::string printer_id2 = "id2";
  printers_map.Insert(PrinterClass::kDiscovered, Printer(printer_id1));
  printers_map.Insert(PrinterClass::kEnterprise, Printer(printer_id2));
  printers_map.SavePrinterStatus(printer_id1, CupsPrinterStatus(printer_id1));
  printers_map.SavePrinterStatus(printer_id2, CupsPrinterStatus(printer_id2));

  base::Optional<Printer> printer1 = printers_map.Get(printer_id1);
  CupsPrinterStatus printer_status1 = printer1->printer_status();
  EXPECT_EQ(printer_id1, printer_status1.GetPrinterId());

  base::Optional<Printer> printer2 = printers_map.Get(printer_id2);
  CupsPrinterStatus printer_status2 = printer2->printer_status();
  EXPECT_EQ(printer_id2, printer_status2.GetPrinterId());
}

TEST_F(PrintersMapTest, PrinterStatusMapMissingRequestedPrinter) {
  PrintersMap printers_map;
  const std::string new_printer_id = "new_printer";
  const std::string wrong_printer_id = "wrong_printer";
  printers_map.Insert(PrinterClass::kDiscovered, Printer(new_printer_id));
  printers_map.Insert(PrinterClass::kDiscovered, Printer(wrong_printer_id));
  printers_map.SavePrinterStatus(new_printer_id, CupsPrinterStatus());

  base::Optional<Printer> wrong_printer = printers_map.Get(wrong_printer_id);
  CupsPrinterStatus printer_status = wrong_printer->printer_status();
  EXPECT_TRUE(printer_status.GetPrinterId().empty());
}

TEST_F(PrintersMapTest, PrinterStatusMapEmpty) {
  PrintersMap printers_map;
  const std::string printer_id = "id";
  printers_map.Insert(PrinterClass::kDiscovered, Printer(printer_id));

  base::Optional<Printer> printer = printers_map.Get(printer_id);
  CupsPrinterStatus printer_status = printer->printer_status();
  EXPECT_TRUE(printer_status.GetPrinterId().empty());
}

TEST_F(PrintersMapTest, GetByIdWithStatus) {
  PrintersMap printers_map;
  const std::string printer_id = "id";
  printers_map.Insert(PrinterClass::kDiscovered, Printer(printer_id));

  CupsPrinterStatus saved_printer_status = CreatePrinterStatus(printer_id);
  printers_map.SavePrinterStatus(printer_id, saved_printer_status);

  base::Optional<Printer> printer = printers_map.Get(printer_id);
  EXPECT_TRUE(printer);
  ExpectPrinterStatusesEqual(saved_printer_status, printer->printer_status());
}

TEST_F(PrintersMapTest, GetByIdAndClassWithStatus) {
  PrintersMap printers_map;
  const std::string printer_id = "id";
  printers_map.Insert(PrinterClass::kDiscovered, Printer(printer_id));

  CupsPrinterStatus saved_printer_status = CreatePrinterStatus(printer_id);
  printers_map.SavePrinterStatus(printer_id, saved_printer_status);

  base::Optional<Printer> printer =
      printers_map.Get(PrinterClass::kDiscovered, printer_id);

  EXPECT_TRUE(printer);
  ExpectPrinterStatusesEqual(saved_printer_status, printer->printer_status());
}

TEST_F(PrintersMapTest, GetByClassWithStatus) {
  PrintersMap printers_map;
  const std::string printer_id = "id";
  printers_map.Insert(PrinterClass::kDiscovered, Printer(printer_id));

  CupsPrinterStatus saved_printer_status = CreatePrinterStatus(printer_id);
  printers_map.SavePrinterStatus(printer_id, saved_printer_status);

  std::vector<Printer> printers = printers_map.Get(PrinterClass::kDiscovered);
  EXPECT_EQ(1u, printers.size());
  for (auto printer : printers) {
    ExpectPrinterStatusesEqual(saved_printer_status, printer.printer_status());
  }
}

TEST_F(PrintersMapTest, GetAllPrintersWithStatus) {
  PrintersMap printers_map;
  const std::string printer_id = "id";
  printers_map.Insert(PrinterClass::kDiscovered, Printer(printer_id));

  CupsPrinterStatus saved_printer_status = CreatePrinterStatus(printer_id);
  printers_map.SavePrinterStatus(printer_id, saved_printer_status);

  std::vector<Printer> printers = printers_map.Get();
  EXPECT_EQ(1u, printers.size());
  for (auto printer : printers) {
    ExpectPrinterStatusesEqual(saved_printer_status, printer.printer_status());
  }
}

TEST_F(PrintersMapTest, GetSecurePrintersWithStatus) {
  PrintersMap printers_map;
  const std::string printer_id = "id";
  Printer ipps_printer = Printer(printer_id);
  ipps_printer.SetUri("ipps://printer");
  printers_map.Insert(PrinterClass::kDiscovered, ipps_printer);

  CupsPrinterStatus saved_printer_status = CreatePrinterStatus(printer_id);
  printers_map.SavePrinterStatus(printer_id, saved_printer_status);

  std::vector<Printer> printers =
      printers_map.GetSecurePrinters(PrinterClass::kDiscovered);
  EXPECT_EQ(1u, printers.size());
  for (auto printer : printers) {
    ExpectPrinterStatusesEqual(saved_printer_status, printer.printer_status());
  }
}

TEST_F(PrintersMapTest, ReplacePrintersInClassAddsStatus) {
  PrintersMap printers_map;
  const std::string printer_id1 = "id1";
  const std::string printer_id2 = "id2";
  std::vector<Printer> printers{Printer(printer_id1), Printer(printer_id2)};

  CupsPrinterStatus saved_printer_status1 = CreatePrinterStatus(printer_id1);
  CupsPrinterStatus saved_printer_status2 = CreatePrinterStatus(printer_id2);
  printers_map.SavePrinterStatus(printer_id1, saved_printer_status1);
  printers_map.SavePrinterStatus(printer_id2, saved_printer_status2);

  printers_map.ReplacePrintersInClass(PrinterClass::kDiscovered, printers);

  base::Optional<Printer> printer1 = printers_map.Get(printer_id1);
  ExpectPrinterStatusesEqual(saved_printer_status1, printer1->printer_status());
  base::Optional<Printer> printer2 = printers_map.Get(printer_id2);
  ExpectPrinterStatusesEqual(saved_printer_status2, printer2->printer_status());
}

TEST_F(PrintersMapTest, ReplacePrintersInClassDeletesAllStatuses) {
  PrintersMap printers_map;
  const std::string printer_id1 = "id1";
  const std::string printer_id2 = "id2";
  printers_map.Insert(PrinterClass::kDiscovered, Printer(printer_id1));
  printers_map.Insert(PrinterClass::kDiscovered, Printer(printer_id2));
  CupsPrinterStatus saved_printer_status1 = CreatePrinterStatus(printer_id1);
  CupsPrinterStatus saved_printer_status2 = CreatePrinterStatus(printer_id2);
  printers_map.SavePrinterStatus(printer_id1, saved_printer_status1);
  printers_map.SavePrinterStatus(printer_id2, saved_printer_status2);

  // Only printer1 is part of printers vector so status for printer2 should be
  // deleted.
  std::vector<Printer> printer1_list{Printer(printer_id1)};
  printers_map.ReplacePrintersInClass(PrinterClass::kDiscovered, printer1_list);
  base::Optional<Printer> printer1 = printers_map.Get(printer_id1);
  ExpectPrinterStatusesEqual(saved_printer_status1, printer1->printer_status());

  // Add printer2 back to the map so it can be fetched then confirm no status
  // was leftover from the replace.
  std::vector<Printer> printer2_list{Printer(printer_id2)};
  printers_map.ReplacePrintersInClass(PrinterClass::kDiscovered, printer2_list);
  base::Optional<Printer> printer2 = printers_map.Get(printer_id2);
  CupsPrinterStatus printer_status2 = printer2->printer_status();
  EXPECT_TRUE(printer_status2.GetPrinterId().empty());
}

TEST_F(PrintersMapTest, ReplacePrintersOnlyDeletesStatusInSameClass) {
  PrintersMap printers_map;
  const std::string printer_id1 = "id1";
  const std::string printer_id2 = "id2";
  printers_map.Insert(PrinterClass::kDiscovered, Printer(printer_id1));
  printers_map.Insert(PrinterClass::kEnterprise, Printer(printer_id2));
  CupsPrinterStatus saved_printer_status1 = CreatePrinterStatus(printer_id1);
  CupsPrinterStatus saved_printer_status2 = CreatePrinterStatus(printer_id2);
  printers_map.SavePrinterStatus(printer_id1, saved_printer_status1);
  printers_map.SavePrinterStatus(printer_id2, saved_printer_status2);

  std::vector<Printer> printer1_list{Printer(printer_id1)};
  printers_map.ReplacePrintersInClass(PrinterClass::kDiscovered, printer1_list);
  base::Optional<Printer> printer1 = printers_map.Get(printer_id1);
  ExpectPrinterStatusesEqual(saved_printer_status1, printer1->printer_status());

  base::Optional<Printer> printer2 = printers_map.Get(printer_id2);
  CupsPrinterStatus printer_status2 = printer2->printer_status();
  ExpectPrinterStatusesEqual(saved_printer_status2, printer2->printer_status());
}

TEST_F(PrintersMapTest, RemovePrinterRemovesStatus) {
  PrintersMap printers_map;
  const std::string printer_id = "id";
  printers_map.Insert(PrinterClass::kDiscovered, Printer(printer_id));

  // Confirm the printer status is attached to the printer
  CupsPrinterStatus saved_printer_status = CreatePrinterStatus(printer_id);
  printers_map.SavePrinterStatus(printer_id, saved_printer_status);
  base::Optional<Printer> saved_printer = printers_map.Get(printer_id);
  CupsPrinterStatus printer_status = saved_printer->printer_status();
  EXPECT_EQ(printer_id, printer_status.GetPrinterId());

  // Remove then resinsert the printer, retrieve that printer and confirm that
  // the associated printer status was deleted.
  printers_map.Remove(PrinterClass::kDiscovered, printer_id);
  std::vector<Printer> printers{Printer(printer_id)};
  printers_map.ReplacePrintersInClass(PrinterClass::kDiscovered, printers);

  base::Optional<Printer> printer = printers_map.Get(printer_id);
  CupsPrinterStatus empty_printer_status = printer->printer_status();
  EXPECT_TRUE(empty_printer_status.GetPrinterId().empty());
}

}  // namespace chromeos