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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "printing/backend/print_backend_cups.h"
#include <cups/cups.h>
#include "base/strings/string_number_conversions.h"
#include "build/build_config.h"
#include "printing/backend/cups_deleters.h"
#include "printing/backend/print_backend.h"
#include "printing/backend/print_backend_consts.h"
#include "printing/mojom/print.mojom.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace printing {
namespace {
ScopedDestination AddDest(const char* name) {
cups_dest_t* dest = nullptr;
if (cupsAddDest(name, /*instance=*/nullptr, /*num_dests=*/0, &dest) != 1) {
return nullptr;
}
return ScopedDestination(dest);
}
bool IsDestTypeEligible(int dest_type) {
ScopedDestination dest = AddDest(/*name=*/"test_dest");
if (!dest) {
return false;
}
cups_option_t* options = nullptr;
int num_options = 0;
num_options = cupsAddOption(kCUPSOptPrinterType,
base::NumberToString(dest_type).c_str(),
num_options, &options);
dest->num_options = num_options;
dest->options = options;
PrinterBasicInfo printer_info;
const mojom::ResultCode result_code =
PrintBackendCUPS::PrinterBasicInfoFromCUPS(*dest, &printer_info);
return result_code == mojom::ResultCode::kSuccess;
}
} // namespace
TEST(PrintBackendCupsTest, PrinterBasicInfoFromCUPS) {
constexpr char kName[] = "printer";
constexpr char kDescription[] = "description";
ScopedDestination printer = AddDest(kName);
ASSERT_TRUE(printer);
int num_options = 0;
cups_option_t* options = nullptr;
#if BUILDFLAG(IS_MAC)
constexpr char kInfo[] = "info";
num_options =
cupsAddOption(kCUPSOptPrinterInfo, kInfo, num_options, &options);
num_options = cupsAddOption(kCUPSOptPrinterMakeAndModel, kDescription,
num_options, &options);
ASSERT_EQ(2, num_options);
ASSERT_TRUE(options);
#else
num_options =
cupsAddOption(kCUPSOptPrinterInfo, kDescription, num_options, &options);
ASSERT_EQ(1, num_options);
ASSERT_TRUE(options);
#endif
printer->num_options = num_options;
printer->options = options;
PrinterBasicInfo printer_info;
EXPECT_EQ(PrintBackendCUPS::PrinterBasicInfoFromCUPS(*printer, &printer_info),
mojom::ResultCode::kSuccess);
EXPECT_EQ(kName, printer_info.printer_name);
#if BUILDFLAG(IS_MAC)
EXPECT_EQ(kInfo, printer_info.display_name);
#else
EXPECT_EQ(kName, printer_info.display_name);
#endif
EXPECT_EQ(kDescription, printer_info.printer_description);
// The option value of `kCUPSOptPrinterMakeAndModel` is used to set the value
// for `kDriverInfoTagName`.
auto driver = printer_info.options.find(kDriverInfoTagName);
#if BUILDFLAG(IS_MAC)
ASSERT_NE(driver, printer_info.options.end());
EXPECT_EQ(kDescription, driver->second);
#else
// Didn't set option for `kCUPSOptPrinterMakeAndModel`.
EXPECT_EQ(driver, printer_info.options.end());
#endif
}
TEST(PrintBackendCupsTest, PrinterBasicInfoFromCUPSNoOptionsDisplayName) {
constexpr char kName[] = "printer";
ScopedDestination printer = AddDest(kName);
ASSERT_TRUE(printer);
PrinterBasicInfo printer_info;
EXPECT_EQ(PrintBackendCUPS::PrinterBasicInfoFromCUPS(*printer, &printer_info),
mojom::ResultCode::kSuccess);
// Ensure that even if no options are specified that the display name is still
// set.
EXPECT_EQ(kName, printer_info.printer_name);
EXPECT_EQ(kName, printer_info.display_name);
}
TEST(PrintBackendCupsTest, PrinterDriverInfoFromCUPS) {
constexpr char kName[] = "test-printer-name";
constexpr char kDescription[] = "A test printer";
ScopedDestination printer = AddDest(kName);
ASSERT_TRUE(printer);
int num_options = 0;
cups_option_t* options = nullptr;
num_options = cupsAddOption(kCUPSOptPrinterMakeAndModel, kDescription,
num_options, &options);
ASSERT_EQ(1, num_options);
ASSERT_TRUE(options);
printer->num_options = num_options;
printer->options = options;
EXPECT_EQ(kDescription,
PrintBackendCUPS::PrinterDriverInfoFromCUPS(*printer));
}
TEST(PrintBackendCupsTest, EligibleDestTypes) {
EXPECT_FALSE(IsDestTypeEligible(CUPS_PRINTER_FAX));
EXPECT_FALSE(IsDestTypeEligible(CUPS_PRINTER_SCANNER));
EXPECT_FALSE(IsDestTypeEligible(CUPS_PRINTER_DISCOVERED));
EXPECT_TRUE(IsDestTypeEligible(CUPS_PRINTER_LOCAL));
// Try combos. `CUPS_PRINTER_LOCAL` has a value of 0, but keep these test
// cases in the event that the constant values change in CUPS.
EXPECT_FALSE(IsDestTypeEligible(CUPS_PRINTER_LOCAL | CUPS_PRINTER_FAX));
EXPECT_FALSE(IsDestTypeEligible(CUPS_PRINTER_LOCAL | CUPS_PRINTER_SCANNER));
}
} // namespace printing
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