Add junit tests for utils classes

src/test/java/stirling/software/SPDF/utils/ErrorUtilsTest.java

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+package stirling.software.SPDF.utils;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.ui.Model;
+import org.springframework.web.servlet.ModelAndView;
+
+public class ErrorUtilsTest {
+
+    @Test
+    public void testExceptionToModel() {
+        // Create a mock Model
+        Model model = new org.springframework.ui.ExtendedModelMap();
+
+        // Create a test exception
+        Exception ex = new Exception("Test Exception");
+
+        // Call the method under test
+        Model resultModel = ErrorUtils.exceptionToModel(model, ex);
+
+        // Verify the result
+        assertNotNull(resultModel);
+        assertEquals("Test Exception", resultModel.getAttribute("errorMessage"));
+        assertNotNull(resultModel.getAttribute("stackTrace"));
+    }
+
+    @Test
+    public void testExceptionToModelView() {
+        // Create a mock Model
+        Model model = new org.springframework.ui.ExtendedModelMap();
+
+        // Create a test exception
+        Exception ex = new Exception("Test Exception");
+
+        // Call the method under test
+        ModelAndView modelAndView = ErrorUtils.exceptionToModelView(model, ex);
+
+        // Verify the result
+        assertNotNull(modelAndView);
+        assertEquals("Test Exception", modelAndView.getModel().get("errorMessage"));
+        assertNotNull(modelAndView.getModel().get("stackTrace"));
+    }
+}

src/test/java/stirling/software/SPDF/utils/FileToPdfTest.java

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+package stirling.software.SPDF.utils;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+import java.io.IOException;
+
+import org.junit.jupiter.api.Test;
+
+import stirling.software.SPDF.model.api.converters.HTMLToPdfRequest;
+
+public class FileToPdfTest {
+
+    @Test
+    public void testConvertHtmlToPdf() {
+        HTMLToPdfRequest request = new HTMLToPdfRequest();
+        byte[] fileBytes = new byte[10]; // Sample file bytes
+        String fileName = "test.html"; // Sample file name
+        boolean htmlFormatsInstalled = true; // Sample boolean value
+
+        // Check if the method throws IOException
+        assertThrows(IOException.class, () -> {
+            FileToPdf.convertHtmlToPdf(request, fileBytes, fileName, htmlFormatsInstalled);
+        });
+    }
+
+    @Test
+    public void testConvertBookTypeToPdf() {
+        byte[] bytes = new byte[10]; // Sample bytes
+        String originalFilename = "test.epub"; // Sample original filename
+
+        // Check if the method throws IOException
+        assertThrows(IOException.class, () -> {
+            FileToPdf.convertBookTypeToPdf(bytes, originalFilename);
+        });
+    }
+}

src/test/java/stirling/software/SPDF/utils/ImageProcessingUtilsTest.java

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+package stirling.software.SPDF.utils;
+
+import org.junit.jupiter.api.Test;
+
+import java.awt.image.BufferedImage;
+import java.awt.Color;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+public class ImageProcessingUtilsTest {
+
+    @Test
+    void testConvertColorTypeToGreyscale() {
+        BufferedImage sourceImage = new BufferedImage(100, 100, BufferedImage.TYPE_INT_RGB);
+        fillImageWithColor(sourceImage, Color.RED);
+        
+        BufferedImage convertedImage = ImageProcessingUtils.convertColorType(sourceImage, "greyscale");
+
+        assertNotNull(convertedImage);
+        assertEquals(BufferedImage.TYPE_BYTE_GRAY, convertedImage.getType());
+        assertEquals(sourceImage.getWidth(), convertedImage.getWidth());
+        assertEquals(sourceImage.getHeight(), convertedImage.getHeight());
+        
+        // Check if a pixel is correctly converted to greyscale
+        Color grey = new Color(convertedImage.getRGB(0, 0));
+        assertEquals(grey.getRed(), grey.getGreen());
+        assertEquals(grey.getGreen(), grey.getBlue());
+    }
+
+    @Test
+    void testConvertColorTypeToBlackWhite() {
+        BufferedImage sourceImage = new BufferedImage(100, 100, BufferedImage.TYPE_INT_RGB);
+        fillImageWithColor(sourceImage, Color.RED);
+        
+        BufferedImage convertedImage = ImageProcessingUtils.convertColorType(sourceImage, "blackwhite");
+
+        assertNotNull(convertedImage);
+        assertEquals(BufferedImage.TYPE_BYTE_BINARY, convertedImage.getType());
+        assertEquals(sourceImage.getWidth(), convertedImage.getWidth());
+        assertEquals(sourceImage.getHeight(), convertedImage.getHeight());
+        
+        // Check if a pixel is converted correctly (binary image will be either black or white)
+        int rgb = convertedImage.getRGB(0, 0);
+        assertTrue(rgb == Color.BLACK.getRGB() || rgb == Color.WHITE.getRGB());
+    }
+
+    @Test
+    void testConvertColorTypeToFullColor() {
+        BufferedImage sourceImage = new BufferedImage(100, 100, BufferedImage.TYPE_INT_RGB);
+        fillImageWithColor(sourceImage, Color.RED);
+        
+        BufferedImage convertedImage = ImageProcessingUtils.convertColorType(sourceImage, "fullcolor");
+
+        assertNotNull(convertedImage);
+        assertEquals(sourceImage, convertedImage);
+    }
+
+    @Test
+    void testConvertColorTypeInvalid() {
+        BufferedImage sourceImage = new BufferedImage(100, 100, BufferedImage.TYPE_INT_RGB);
+        fillImageWithColor(sourceImage, Color.RED);
+        
+        BufferedImage convertedImage = ImageProcessingUtils.convertColorType(sourceImage, "invalidtype");
+
+        assertNotNull(convertedImage);
+        assertEquals(sourceImage, convertedImage);
+    }
+
+    private void fillImageWithColor(BufferedImage image, Color color) {
+        for (int y = 0; y < image.getHeight(); y++) {
+            for (int x = 0; x < image.getWidth(); x++) {
+                image.setRGB(x, y, color.getRGB());
+            }
+        }
+    }
+}

src/test/java/stirling/software/SPDF/utils/PdfUtilsTest.java

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+package stirling.software.SPDF.utils;
+
+import org.apache.pdfbox.pdmodel.PDDocument;
+import org.apache.pdfbox.pdmodel.PDPage;
+import org.apache.pdfbox.pdmodel.PDResources;
+import org.junit.jupiter.api.Test;
+import org.mockito.Mockito;
+import stirling.software.SPDF.model.PdfMetadata;
+
+import java.io.IOException;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.Set;
+
+import static org.junit.jupiter.api.Assertions.*;
+import org.apache.pdfbox.pdmodel.common.PDRectangle;
+import org.apache.pdfbox.pdmodel.graphics.image.PDImageXObject;
+import org.apache.pdfbox.cos.COSName;
+
+public class PdfUtilsTest {
+
+    @Test
+    void testTextToPageSize() {
+        assertEquals(PDRectangle.A4, PdfUtils.textToPageSize("A4"));
+        assertEquals(PDRectangle.LETTER, PdfUtils.textToPageSize("LETTER"));
+        assertThrows(IllegalArgumentException.class, () -> PdfUtils.textToPageSize("INVALID"));
+    }
+
+    @Test
+    void testHasImagesOnPage() throws IOException {
+        // Mock a PDPage and its resources
+        PDPage page = Mockito.mock(PDPage.class);
+        PDResources resources = Mockito.mock(PDResources.class);
+        Mockito.when(page.getResources()).thenReturn(resources);
+
+        // Case 1: No images in resources
+        Mockito.when(resources.getXObjectNames()).thenReturn(Collections.emptySet());
+        assertFalse(PdfUtils.hasImagesOnPage(page));
+
+        // Case 2: Resources with an image
+        Set<COSName> xObjectNames = new HashSet<>();
+        COSName cosName = Mockito.mock(COSName.class);
+        xObjectNames.add(cosName);
+
+        PDImageXObject imageXObject = Mockito.mock(PDImageXObject.class);
+        Mockito.when(resources.getXObjectNames()).thenReturn(xObjectNames);
+        Mockito.when(resources.getXObject(cosName)).thenReturn(imageXObject);
+
+        assertTrue(PdfUtils.hasImagesOnPage(page));
+    }
+
+    @Test
+    void testExtractMetadataFromPdf() throws IOException {
+        PDDocument document = Mockito.mock(PDDocument.class);
+        Mockito.when(document.getDocumentInformation()).thenReturn(Mockito.mock(org.apache.pdfbox.pdmodel.PDDocumentInformation.class));
+        PdfMetadata metadata = PdfUtils.extractMetadataFromPdf(document);
+
+        assertNotNull(metadata);
+    }
+}

src/test/java/stirling/software/SPDF/utils/ProcessExecutorTest.java

@@ -0,0 +1,51 @@
+package stirling.software.SPDF.utils;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+public class ProcessExecutorTest {
+
+    private ProcessExecutor processExecutor;
+
+    @BeforeEach
+    public void setUp() {
+        // Initialize the ProcessExecutor instance
+        processExecutor = ProcessExecutor.getInstance(ProcessExecutor.Processes.LIBRE_OFFICE);
+    }
+
+    @Test
+    public void testRunCommandWithOutputHandling() throws IOException, InterruptedException {
+        // Mock the command to execute
+        List<String> command = new ArrayList<>();
+        command.add("java");
+        command.add("-version");
+
+        // Execute the command
+        ProcessExecutor.ProcessExecutorResult result = processExecutor.runCommandWithOutputHandling(command);
+
+        // Check the exit code and output messages
+        assertEquals(0, result.getRc());
+        assertNotNull(result.getMessages()); // Check if messages are not null
+    }
+
+    @Test
+    public void testRunCommandWithOutputHandling_Error() {
+        // Mock the command to execute
+        List<String> command = new ArrayList<>();
+        command.add("nonexistent-command");
+
+        // Execute the command and expect an IOException
+        IOException thrown = assertThrows(IOException.class, () -> {
+            processExecutor.runCommandWithOutputHandling(command);
+        });
+
+        // Check the exception message to ensure it is about the nonexistent command
+        assertTrue(thrown.getMessage().contains("CreateProcess error=2, The system cannot find the file specified"));
+    }
+}

src/test/java/stirling/software/SPDF/utils/PropertyConfigsTest.java

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+package stirling.software.SPDF.utils;
+
+import org.junit.jupiter.api.Test;
+
+import java.util.Arrays;
+import java.util.List;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+public class PropertyConfigsTest {
+
+    @Test
+    public void testGetBooleanValue_WithKeys() {
+        // Define keys and default value
+        List<String> keys = Arrays.asList("test.key1", "test.key2", "test.key3");
+        boolean defaultValue = false;
+
+        // Set property for one of the keys
+        System.setProperty("test.key2", "true");
+
+        // Call the method under test
+        boolean result = PropertyConfigs.getBooleanValue(keys, defaultValue);
+
+        // Verify the result
+        assertEquals(true, result);
+    }
+
+    @Test
+    public void testGetStringValue_WithKeys() {
+        // Define keys and default value
+        List<String> keys = Arrays.asList("test.key1", "test.key2", "test.key3");
+        String defaultValue = "default";
+
+        // Set property for one of the keys
+        System.setProperty("test.key2", "value");
+
+        // Call the method under test
+        String result = PropertyConfigs.getStringValue(keys, defaultValue);
+
+        // Verify the result
+        assertEquals("value", result);
+    }
+
+    @Test
+    public void testGetBooleanValue_WithKey() {
+        // Define key and default value
+        String key = "test.key";
+        boolean defaultValue = true;
+
+        // Call the method under test
+        boolean result = PropertyConfigs.getBooleanValue(key, defaultValue);
+
+        // Verify the result
+        assertEquals(true, result);
+    }
+
+    @Test
+    public void testGetStringValue_WithKey() {
+        // Define key and default value
+        String key = "test.key";
+        String defaultValue = "default";
+
+        // Call the method under test
+        String result = PropertyConfigs.getStringValue(key, defaultValue);
+
+        // Verify the result
+        assertEquals("default", result);
+    }
+}

src/test/java/stirling/software/SPDF/utils/RequestUriUtilsTest.java

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+package stirling.software.SPDF.utils;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+import org.junit.jupiter.api.Test;
+
+public class RequestUriUtilsTest {
+
+    @Test
+    public void testIsStaticResource() {
+        assertTrue(RequestUriUtils.isStaticResource("/css/styles.css"));
+        assertTrue(RequestUriUtils.isStaticResource("/js/script.js"));
+        assertTrue(RequestUriUtils.isStaticResource("/images/logo.png"));
+        assertTrue(RequestUriUtils.isStaticResource("/public/index.html"));
+        assertTrue(RequestUriUtils.isStaticResource("/pdfjs/pdf.worker.js"));
+        assertTrue(RequestUriUtils.isStaticResource("/api/v1/info/status"));
+        assertTrue(RequestUriUtils.isStaticResource("/some-path/icon.svg"));
+        assertFalse(RequestUriUtils.isStaticResource("/api/v1/users"));
+        assertFalse(RequestUriUtils.isStaticResource("/api/v1/orders"));
+        assertFalse(RequestUriUtils.isStaticResource("/"));
+        assertFalse(RequestUriUtils.isStaticResource("/login"));
+        assertFalse(RequestUriUtils.isStaticResource("/register"));
+        assertFalse(RequestUriUtils.isStaticResource("/api/v1/products"));
+    }
+}

src/test/java/stirling/software/SPDF/utils/SPdfApplicationTest.java

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+package stirling.software.SPDF.utils;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+import org.mockito.junit.jupiter.MockitoExtension;
+import org.springframework.core.env.Environment;
+
+import stirling.software.SPDF.SPdfApplication;
+import stirling.software.SPDF.model.ApplicationProperties;
+
+@ExtendWith(MockitoExtension.class)
+public class SPdfApplicationTest {
+
+    @Mock
+    private Environment env;
+
+    @Mock
+    private ApplicationProperties applicationProperties;
+
+    @InjectMocks
+    private SPdfApplication sPdfApplication;
+
+    @BeforeEach
+    public void setUp() {
+        sPdfApplication = new SPdfApplication();
+        sPdfApplication.setServerPortStatic("8080");
+    }
+
+    @Test
+    public void testSetServerPortStatic() {
+        sPdfApplication.setServerPortStatic("9090");
+        assertEquals("9090", SPdfApplication.getStaticPort());
+    }
+
+    @Test
+    public void testMainApplicationStartup() throws IOException, InterruptedException {
+        // Setup mock environment for the main method
+        Path settingsPath = Paths.get("configs/settings.yml");
+        Path customSettingsPath = Paths.get("configs/custom_settings.yml");
+
+        // Ensure the files do not exist for the test
+        if (Files.exists(settingsPath)) {
+            Files.delete(settingsPath);
+        }
+        if (Files.exists(customSettingsPath)) {
+            Files.delete(customSettingsPath);
+        }
+
+        // Run the main method
+        SPdfApplication.main(new String[]{});
+
+        // Verify that the directories were created
+        assertTrue(Files.exists(Path.of("customFiles/static/")));
+        assertTrue(Files.exists(Path.of("customFiles/templates/")));
+    }
+
+    @Test
+    public void testGetStaticPort() {
+        assertEquals("8080", SPdfApplication.getStaticPort());
+    }
+
+    @Test
+    public void testGetNonStaticPort() {
+        assertEquals("8080", sPdfApplication.getNonStaticPort());
+    }
+}

src/test/java/stirling/software/SPDF/utils/UrlUtilsTest.java

@@ -0,0 +1,26 @@
+package stirling.software.SPDF.utils;
+
+import jakarta.servlet.http.HttpServletRequest;
+import org.junit.jupiter.api.Test;
+import org.mockito.Mockito;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+public class UrlUtilsTest {
+
+    @Test
+    void testGetOrigin() {
+        // Mock HttpServletRequest
+        HttpServletRequest request = Mockito.mock(HttpServletRequest.class);
+        Mockito.when(request.getScheme()).thenReturn("http");
+        Mockito.when(request.getServerName()).thenReturn("localhost");
+        Mockito.when(request.getServerPort()).thenReturn(8080);
+        Mockito.when(request.getContextPath()).thenReturn("/myapp");
+
+        // Call the method under test
+        String origin = UrlUtils.getOrigin(request);
+
+        // Assert the result
+        assertEquals("http://localhost:8080/myapp", origin);
+    }
+}

src/test/java/stirling/software/SPDF/utils/WebResponseUtilsTest.java

@@ -0,0 +1,111 @@
+package stirling.software.SPDF.utils;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+
+import org.apache.pdfbox.pdmodel.PDDocument;
+import org.junit.jupiter.api.Test;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.MediaType;
+import org.springframework.http.ResponseEntity;
+import org.springframework.mock.web.MockMultipartFile;
+
+public class WebResponseUtilsTest {
+
+    @Test
+    public void testBoasToWebResponse() {
+        try {
+            ByteArrayOutputStream baos = new ByteArrayOutputStream();
+            baos.write("Sample PDF content".getBytes());
+            String docName = "sample.pdf";
+
+            ResponseEntity<byte[]> responseEntity = WebResponseUtils.boasToWebResponse(baos, docName);
+
+            assertNotNull(responseEntity);
+            assertEquals(HttpStatus.OK, responseEntity.getStatusCode());
+            assertNotNull(responseEntity.getBody());
+
+            HttpHeaders headers = responseEntity.getHeaders();
+            assertNotNull(headers);
+            assertEquals(MediaType.APPLICATION_PDF, headers.getContentType());
+            assertNotNull(headers.getContentDisposition());
+            //assertEquals("attachment; filename=\"sample.pdf\"", headers.getContentDisposition().toString());
+
+        } catch (IOException e) {
+            fail("Exception thrown: " + e.getMessage());
+        }
+    }
+
+    @Test
+    public void testMultiPartFileToWebResponse() {
+        try {
+            byte[] fileContent = "Sample file content".getBytes();
+            MockMultipartFile file = new MockMultipartFile("file", "sample.txt", "text/plain", fileContent);
+
+            ResponseEntity<byte[]> responseEntity = WebResponseUtils.multiPartFileToWebResponse(file);
+
+            assertNotNull(responseEntity);
+            assertEquals(HttpStatus.OK, responseEntity.getStatusCode());
+            assertNotNull(responseEntity.getBody());
+
+            HttpHeaders headers = responseEntity.getHeaders();
+            assertNotNull(headers);
+            assertEquals(MediaType.TEXT_PLAIN, headers.getContentType());
+            assertNotNull(headers.getContentDisposition());
+        
+        } catch (IOException e) {
+            fail("Exception thrown: " + e.getMessage());
+        }
+    }
+
+    @Test
+    public void testBytesToWebResponse() {
+        try {
+            byte[] bytes = "Sample bytes".getBytes();
+            String docName = "sample.txt";
+            MediaType mediaType = MediaType.TEXT_PLAIN;
+
+            ResponseEntity<byte[]> responseEntity = WebResponseUtils.bytesToWebResponse(bytes, docName, mediaType);
+
+            assertNotNull(responseEntity);
+            assertEquals(HttpStatus.OK, responseEntity.getStatusCode());
+            assertNotNull(responseEntity.getBody());
+
+            HttpHeaders headers = responseEntity.getHeaders();
+            assertNotNull(headers);
+            assertEquals(MediaType.TEXT_PLAIN, headers.getContentType());
+            assertNotNull(headers.getContentDisposition());
+            
+
+        } catch (IOException e) {
+            fail("Exception thrown: " + e.getMessage());
+        }
+    }
+
+    @Test
+    public void testPdfDocToWebResponse() {
+        try {
+            PDDocument document = new PDDocument();
+            document.addPage(new org.apache.pdfbox.pdmodel.PDPage());
+            String docName = "sample.pdf";
+
+            ResponseEntity<byte[]> responseEntity = WebResponseUtils.pdfDocToWebResponse(document, docName);
+
+            assertNotNull(responseEntity);
+            assertEquals(HttpStatus.OK, responseEntity.getStatusCode());
+            assertNotNull(responseEntity.getBody());
+
+            HttpHeaders headers = responseEntity.getHeaders();
+            assertNotNull(headers);
+            assertEquals(MediaType.APPLICATION_PDF, headers.getContentType());
+            assertNotNull(headers.getContentDisposition());
+            
+
+        } catch (IOException e) {
+            fail("Exception thrown: " + e.getMessage());
+        }
+    }
+}