Moritz Martinius
1f57a802f3
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129 lines
4.1 KiB
C++
129 lines
4.1 KiB
C++
/*
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ptrnt - print labels on linux
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Copyright (C) 2025 Moritz Martinius
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include <gmock/gmock.h>
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#include <gtest/gtest.h>
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#include <memory>
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#include <vector>
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#include "core/PrinterDriverFactory.hpp"
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#include "core/PrinterService.hpp"
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#include "mocks/MockUsbDeviceFactory.hpp"
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using ::testing::_;
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using ::testing::Invoke;
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using ::testing::NiceMock;
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using ::testing::Return;
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namespace ptprnt::core {
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// Helper function to return empty vector of unique_ptrs
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std::vector<std::unique_ptr<libusbwrap::IUsbDevice>> returnEmptyDeviceList() {
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return {};
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}
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// Test fixture for PrinterService tests
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class PrinterServiceTest : public ::testing::Test {
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protected:
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void SetUp() override {
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// Create mock USB device factory
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auto mockFactory = std::make_unique<NiceMock<libusbwrap::MockUsbDeviceFactory>>();
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mockFactoryPtr = mockFactory.get();
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// Default behavior: init succeeds
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ON_CALL(*mockFactoryPtr, init()).WillByDefault(Return(true));
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// Default behavior: no devices found
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ON_CALL(*mockFactoryPtr, findAllDevices()).WillByDefault(Invoke(returnEmptyDeviceList));
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// Inject mock factory into service
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service = std::make_unique<PrinterService>(std::move(mockFactory));
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}
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void TearDown() override { service.reset(); }
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std::unique_ptr<PrinterService> service;
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libusbwrap::MockUsbDeviceFactory* mockFactoryPtr; // Non-owning pointer for expectations
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};
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// Test: PrinterService initialization
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TEST_F(PrinterServiceTest, InitializeSuccess) {
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EXPECT_CALL(*mockFactoryPtr, init()).WillOnce(Return(true));
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EXPECT_TRUE(service->initialize());
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}
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// Test: Detect printers when none are connected
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TEST_F(PrinterServiceTest, DetectPrintersNoneFound) {
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service->initialize();
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// Mock returns empty device list - no real USB enumeration happens
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EXPECT_CALL(*mockFactoryPtr, findAllDevices()).WillOnce(Invoke(returnEmptyDeviceList));
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auto printers = service->detectPrinters();
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// Should get empty list since mock returns no devices
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EXPECT_EQ(printers.size(), 0);
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}
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// Test: Select printer with auto-detect when none found
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TEST_F(PrinterServiceTest, SelectPrinterAutoNoneFound) {
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service->initialize();
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// Mock returns empty device list
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EXPECT_CALL(*mockFactoryPtr, findAllDevices()).WillOnce(Invoke(returnEmptyDeviceList));
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auto printer = service->selectPrinter("auto");
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// Should be nullptr since no printers detected
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EXPECT_EQ(printer, nullptr);
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EXPECT_EQ(service->getCurrentPrinter(), nullptr);
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}
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// Test: Select non-existent printer by name
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TEST_F(PrinterServiceTest, SelectPrinterByNameNotFound) {
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service->initialize();
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// This test doesn't need USB mocking since selectPrinter("name")
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// uses PrinterDriverFactory directly, not USB enumeration
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auto printer = service->selectPrinter("NonExistentPrinter");
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EXPECT_EQ(printer, nullptr);
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EXPECT_EQ(service->getCurrentPrinter(), nullptr);
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}
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// Test: Get current printer when none selected
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TEST_F(PrinterServiceTest, GetCurrentPrinterNoneSelected) {
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EXPECT_EQ(service->getCurrentPrinter(), nullptr);
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}
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// Test: Print label without selecting printer
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TEST_F(PrinterServiceTest, PrintLabelNoPrinterSelected) {
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// Create a simple label (we need a valid ILabel pointer)
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std::unique_ptr<graphics::ILabel> label = nullptr; // nullptr label for this test
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bool result = service->printLabel(std::move(label));
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// Should fail because no printer is selected
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EXPECT_FALSE(result);
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}
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} // namespace ptprnt::core
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