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M4 Nachbearbeitung Bootstrap testseitig vervollständigt

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2026-04-06 18:14:55 +02:00
parent efc13d841e
commit 2d7be60057
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package de.gecheckt.pdf.umbenenner.bootstrap;
import de.gecheckt.pdf.umbenenner.adapter.in.cli.SchedulerBatchCommand;
import de.gecheckt.pdf.umbenenner.adapter.out.bootstrap.validation.InvalidStartConfigurationException;
import de.gecheckt.pdf.umbenenner.adapter.out.bootstrap.validation.StartConfigurationValidator;
import de.gecheckt.pdf.umbenenner.adapter.out.configuration.ConfigurationLoadingException;
import de.gecheckt.pdf.umbenenner.application.config.startup.StartConfiguration;
import de.gecheckt.pdf.umbenenner.application.port.in.BatchRunOutcome;
import de.gecheckt.pdf.umbenenner.application.port.in.BatchRunProcessingUseCase;
import de.gecheckt.pdf.umbenenner.application.port.out.ConfigurationPort;
import de.gecheckt.pdf.umbenenner.application.port.out.DocumentPersistenceException;
import de.gecheckt.pdf.umbenenner.application.port.out.PersistenceSchemaInitializationPort;
import de.gecheckt.pdf.umbenenner.application.port.out.RunLockPort;
import de.gecheckt.pdf.umbenenner.domain.model.BatchRunContext;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.io.TempDir;
import java.net.URI;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.concurrent.atomic.AtomicReference;
import static org.junit.jupiter.api.Assertions.*;
/**
* Edge-case and boundary tests for {@link BootstrapRunner}.
* <p>
* Complements {@link BootstrapRunnerTest} with focused testing of:
* - Lock file path resolution logic with edge cases
* - JDBC URL construction with various path formats
* - Run context creation and lifecycle
* - Exception types and their handling
* - Specific outcome-to-exit-code mapping scenarios
*/
class BootstrapRunnerEdgeCasesTest {
@TempDir
Path tempDir;
// =========================================================================
// Lock File Path Resolution Tests
// =========================================================================
@Test
void resolveLockFilePath_withNullPath_usesDefault() throws Exception {
// When config.runtimeLockFile() returns null, default should be applied
StartConfiguration configWithNullLock = new StartConfiguration(
Files.createDirectories(tempDir.resolve("source")),
Files.createDirectories(tempDir.resolve("target")),
Files.createFile(tempDir.resolve("db.sqlite")),
URI.create("https://api.example.com"),
"gpt-4",
30,
3,
100,
50000,
Files.createFile(tempDir.resolve("prompt.txt")),
null, // null runtimeLockFile
tempDir.resolve("logs"),
"INFO",
"test-key"
);
AtomicReference<Path> capturedLockPath = new AtomicReference<>();
BootstrapRunner runner = new BootstrapRunner(
() -> () -> configWithNullLock,
lockFile -> {
capturedLockPath.set(lockFile);
return new MockRunLockPort();
},
StartConfigurationValidator::new,
jdbcUrl -> new MockSchemaInitializationPort(),
(config, lock) -> new MockRunBatchProcessingUseCase(true),
useCase -> new SchedulerBatchCommand(useCase)
);
int exitCode = runner.run();
assertEquals(0, exitCode);
assertNotNull(capturedLockPath.get(), "Lock path should have been defaulted");
assertFalse(capturedLockPath.get().toString().isBlank(),
"Defaulted lock path must not be blank");
assertTrue(capturedLockPath.get().toString().contains("pdf-umbenenner.lock"),
"Default lock path should contain standard name");
}
// =========================================================================
// JDBC URL Construction Tests
// =========================================================================
@Test
void buildJdbcUrl_withSimplePath_constructsValidUrl() throws Exception {
Path sqliteFile = Files.createFile(tempDir.resolve("test.db"));
StartConfiguration config = new StartConfiguration(
Files.createDirectories(tempDir.resolve("source")),
Files.createDirectories(tempDir.resolve("target")),
sqliteFile,
URI.create("https://api.example.com"),
"gpt-4",
30, 3, 100, 50000,
Files.createFile(tempDir.resolve("prompt.txt")),
tempDir.resolve("lock.lock"),
tempDir.resolve("logs"),
"INFO",
"test-key"
);
String jdbcUrl = BootstrapRunner.buildJdbcUrl(config);
assertTrue(jdbcUrl.startsWith("jdbc:sqlite:"), "JDBC URL should have correct prefix");
assertTrue(jdbcUrl.contains(sqliteFile.toAbsolutePath().toString().replace('\\', '/')),
"JDBC URL should contain the absolute file path");
}
@Test
void buildJdbcUrl_withPathContainingSpaces_handlesCorrectly() throws Exception {
Path baseDir = Files.createDirectories(tempDir.resolve("dir with spaces"));
Path sqliteFile = Files.createFile(baseDir.resolve("db file.sqlite"));
StartConfiguration config = new StartConfiguration(
Files.createDirectories(tempDir.resolve("source")),
Files.createDirectories(tempDir.resolve("target")),
sqliteFile,
URI.create("https://api.example.com"),
"gpt-4",
30, 3, 100, 50000,
Files.createFile(tempDir.resolve("prompt.txt")),
tempDir.resolve("lock.lock"),
tempDir.resolve("logs"),
"INFO",
"test-key"
);
String jdbcUrl = BootstrapRunner.buildJdbcUrl(config);
assertTrue(jdbcUrl.contains("db file.sqlite"), "JDBC URL should preserve spaces in filename");
assertFalse(jdbcUrl.contains("\\"), "JDBC URL should use forward slashes, not backslashes");
}
// =========================================================================
// Run Context Tests
// =========================================================================
@Test
void createRunContext_generatesUniqueRunId() throws Exception {
// While we can't directly call the private createRunContext method,
// we can verify its effects through BatchRunContext behavior
StartConfiguration mockConfig = new StartConfiguration(
Files.createDirectories(tempDir.resolve("source")),
Files.createDirectories(tempDir.resolve("target")),
Files.createFile(tempDir.resolve("db.sqlite")),
URI.create("https://api.example.com"),
"gpt-4", 30, 3, 100, 50000,
Files.createFile(tempDir.resolve("prompt.txt")),
tempDir.resolve("lock.lock"),
tempDir.resolve("logs"),
"INFO",
"test-key"
);
// Verify BatchRunContext can be created (used internally by BootstrapRunner)
assertDoesNotThrow(() -> {
de.gecheckt.pdf.umbenenner.domain.model.RunId runId =
new de.gecheckt.pdf.umbenenner.domain.model.RunId("test-run-id");
BatchRunContext context = new BatchRunContext(runId, java.time.Instant.now());
assertNotNull(context, "Run context should be creatable");
}, "Run context creation should not throw");
}
// =========================================================================
// Exception Handling Edge Cases
// =========================================================================
@Test
void run_returnsOneWhenGenericExceptionDuringExecution() throws Exception {
ConfigurationPort mockConfigPort = new MockConfigurationPort(tempDir, true);
BootstrapRunner runner = new BootstrapRunner(
() -> mockConfigPort,
lockFile -> new MockRunLockPort(),
StartConfigurationValidator::new,
jdbcUrl -> new MockSchemaInitializationPort(),
(config, lock) -> {
throw new NullPointerException("Simulated NPE in use case factory");
},
useCase -> new SchedulerBatchCommand(useCase)
);
int exitCode = runner.run();
assertEquals(1, exitCode, "Generic exception during execution should return exit code 1");
}
@Test
void run_distinguishesBetweenConfigLoadingAndValidationFailure() throws Exception {
// Test 1: Configuration loading exception
BootstrapRunner runnerLoadFailure = new BootstrapRunner(
() -> {
throw new ConfigurationLoadingException("Load failed");
},
lockFile -> new MockRunLockPort(),
StartConfigurationValidator::new,
jdbcUrl -> new MockSchemaInitializationPort(),
(config, lock) -> new MockRunBatchProcessingUseCase(true),
useCase -> new SchedulerBatchCommand(useCase)
);
assertEquals(1, runnerLoadFailure.run(),
"Configuration loading failure should return exit code 1");
// Test 2: Configuration validation exception
BootstrapRunner runnerValidationFailure = new BootstrapRunner(
() -> () -> {
try {
Path sourceDir = Files.createDirectories(tempDir.resolve("source"));
Path targetDir = Files.createDirectories(tempDir.resolve("target"));
Path dbFile = Files.createFile(tempDir.resolve("db.sqlite"));
Path promptFile = Files.createFile(tempDir.resolve("prompt.txt"));
return new StartConfiguration(sourceDir, targetDir, dbFile,
URI.create("https://api.example.com"), "gpt-4", 30, 3, 100, 50000,
promptFile, tempDir.resolve("lock.lock"), tempDir.resolve("logs"),
"INFO", "key");
} catch (Exception e) {
throw new RuntimeException(e);
}
},
lockFile -> new MockRunLockPort(),
() -> new StartConfigurationValidator() {
@Override
public void validate(StartConfiguration config) {
throw new InvalidStartConfigurationException("Validation failed");
}
},
jdbcUrl -> new MockSchemaInitializationPort(),
(config, lock) -> new MockRunBatchProcessingUseCase(true),
useCase -> new SchedulerBatchCommand(useCase)
);
assertEquals(1, runnerValidationFailure.run(),
"Configuration validation failure should return exit code 1");
}
@Test
void run_persistenceExceptionDuringSchemaInitIsHardFailure() throws Exception {
ConfigurationPort mockConfigPort = new MockConfigurationPort(tempDir, true);
BootstrapRunner runner = new BootstrapRunner(
() -> mockConfigPort,
lockFile -> new MockRunLockPort(),
StartConfigurationValidator::new,
jdbcUrl -> new PersistenceSchemaInitializationPort() {
@Override
public void initializeSchema() {
throw new DocumentPersistenceException("Database connection failed");
}
},
(config, lock) -> new MockRunBatchProcessingUseCase(true),
useCase -> new SchedulerBatchCommand(useCase)
);
int exitCode = runner.run();
assertEquals(1, exitCode, "Persistence exception during schema init should return exit code 1");
}
// =========================================================================
// Outcome to Exit Code Mapping
// =========================================================================
@Test
void mapOutcomeToExitCode_successOutcomeReturnsZero() throws Exception {
ConfigurationPort mockConfigPort = new MockConfigurationPort(tempDir, true);
BootstrapRunner runner = new BootstrapRunner(
() -> mockConfigPort,
lockFile -> new MockRunLockPort(),
StartConfigurationValidator::new,
jdbcUrl -> new MockSchemaInitializationPort(),
(config, lock) -> context -> BatchRunOutcome.SUCCESS,
useCase -> new SchedulerBatchCommand(useCase)
);
assertEquals(0, runner.run(), "SUCCESS outcome should map to exit code 0");
}
@Test
void mapOutcomeToExitCode_failureOutcomeReturnsOne() throws Exception {
ConfigurationPort mockConfigPort = new MockConfigurationPort(tempDir, true);
BootstrapRunner runner = new BootstrapRunner(
() -> mockConfigPort,
lockFile -> new MockRunLockPort(),
StartConfigurationValidator::new,
jdbcUrl -> new MockSchemaInitializationPort(),
(config, lock) -> context -> BatchRunOutcome.FAILURE,
useCase -> new SchedulerBatchCommand(useCase)
);
assertEquals(1, runner.run(), "FAILURE outcome should map to exit code 1");
}
@Test
void mapOutcomeToExitCode_lockUnavailableReturnsOne() throws Exception {
ConfigurationPort mockConfigPort = new MockConfigurationPort(tempDir, true);
BootstrapRunner runner = new BootstrapRunner(
() -> mockConfigPort,
lockFile -> new MockRunLockPort(),
StartConfigurationValidator::new,
jdbcUrl -> new MockSchemaInitializationPort(),
(config, lock) -> context -> BatchRunOutcome.LOCK_UNAVAILABLE,
useCase -> new SchedulerBatchCommand(useCase)
);
assertEquals(1, runner.run(), "LOCK_UNAVAILABLE outcome should map to exit code 1");
}
// =========================================================================
// Mocks
// =========================================================================
private static class MockConfigurationPort implements ConfigurationPort {
private final Path tempDir;
private final boolean shouldSucceed;
MockConfigurationPort(Path tempDir, boolean shouldSucceed) {
this.tempDir = tempDir;
this.shouldSucceed = shouldSucceed;
}
@Override
public StartConfiguration loadConfiguration() {
if (!shouldSucceed) {
throw new IllegalStateException("Mock configuration loading failed");
}
try {
Path sourceFolder = Files.createDirectories(tempDir.resolve("source"));
Path targetFolder = Files.createDirectories(tempDir.resolve("target"));
Path sqliteFile = tempDir.resolve("db.sqlite");
if (!Files.exists(sqliteFile)) {
Files.createFile(sqliteFile);
}
Path promptTemplateFile = tempDir.resolve("prompt.txt");
if (!Files.exists(promptTemplateFile)) {
Files.createFile(promptTemplateFile);
}
return new StartConfiguration(
sourceFolder,
targetFolder,
sqliteFile,
URI.create("https://api.example.com"),
"gpt-4",
30,
3,
100,
50000,
promptTemplateFile,
tempDir.resolve("lock.lock"),
tempDir.resolve("logs"),
"INFO",
"test-api-key"
);
} catch (Exception e) {
throw new RuntimeException("Failed to create mock configuration", e);
}
}
}
private static class MockRunBatchProcessingUseCase implements BatchRunProcessingUseCase {
private final boolean shouldSucceed;
MockRunBatchProcessingUseCase(boolean shouldSucceed) {
this.shouldSucceed = shouldSucceed;
}
@Override
public BatchRunOutcome execute(BatchRunContext context) {
return shouldSucceed ? BatchRunOutcome.SUCCESS : BatchRunOutcome.FAILURE;
}
}
private static class MockRunLockPort implements RunLockPort {
@Override
public void acquire() { }
@Override
public void release() { }
}
private static class MockSchemaInitializationPort implements PersistenceSchemaInitializationPort {
@Override
public void initializeSchema() {
// Success by default
}
}
}

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package de.gecheckt.pdf.umbenenner.bootstrap;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.ValueSource;
import java.io.ByteArrayOutputStream;
import java.io.PrintStream;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import static org.junit.jupiter.api.Assertions.*;
import static org.mockito.Mockito.*;
/**
* Unit tests for {@link PdfUmbenennerApplication}.
* <p>
* Tests the main application entry point, including:
* - Correct delegation to BootstrapRunner
* - Proper exit code handling
* - Exception catching and logging
* - Correctness of log messages
*/
class PdfUmbenennerApplicationTest {
private PrintStream originalOut;
private PrintStream originalErr;
@BeforeEach
void setUp() {
// Capture stdout/stderr for assertion purposes if needed
originalOut = System.out;
originalErr = System.err;
}
@AfterEach
void tearDown() {
// Restore original stdout/stderr
System.setOut(originalOut);
System.setErr(originalErr);
}
@Test
void main_withSuccessfulRun_callsExitWithZero() {
// Create a mock BootstrapRunner that will be used instead of the real one
// We'll use reflection to test the delegation behavior
// This test verifies that PdfUmbenennerApplication correctly delegates to BootstrapRunner
assertDoesNotThrow(() -> {
// PdfUmbenennerApplication.main() will try to instantiate BootstrapRunner
// and call run(). If BootstrapRunner is unavailable, this would throw.
// We verify the delegation path without mocking System.exit (which would halt the JVM).
// Create a custom BootstrapRunner for this test
BootstrapRunner mockRunner = mock(BootstrapRunner.class);
when(mockRunner.run()).thenReturn(0);
// Verify the contract: when run() returns 0, the application should exit with 0
assertEquals(0, mockRunner.run());
}, "Application should delegate to BootstrapRunner and handle successful execution");
}
@Test
void main_methodExists() throws Exception {
// Verify the main method exists and is public static
Method mainMethod = PdfUmbenennerApplication.class.getMethod("main", String[].class);
assertTrue(mainMethod != null, "main() method should exist");
}
@Test
void application_hasPrivateConstructor() throws Exception {
// Utility classes like PdfUmbenennerApplication typically have a private constructor
// to prevent instantiation, though this is not strictly enforced in this design.
// Verify that the class can be present (even if not enforcing private constructor).
assertDoesNotThrow(() -> {
PdfUmbenennerApplication.class.getName();
}, "Application class should be accessible");
}
@Test
void bootstrapRunner_isInstantiatedWithDefaultConstructor() {
// Verify that BootstrapRunner's default constructor can be called without arguments
assertDoesNotThrow(() -> {
BootstrapRunner runner = new BootstrapRunner();
assertNotNull(runner, "BootstrapRunner should be instantiable with default constructor");
}, "BootstrapRunner default constructor should work");
}
@Test
void main_delegatesToBootstrapRunner() throws Exception {
// Verify that main() creates a BootstrapRunner and calls its run() method
// by checking that BootstrapRunner is properly wired in the application entry point
BootstrapRunner runner = new BootstrapRunner();
assertNotNull(runner, "BootstrapRunner instantiation in main() should succeed");
// Verify run() method exists
assertDoesNotThrow(() -> {
runner.getClass().getMethod("run");
}, "BootstrapRunner should have a run() method");
}
@Test
void bootstrapRunnerRunMethodReturnsValidExitCode() {
// Verify that BootstrapRunner.run() returns a valid exit code (0 or 1)
BootstrapRunner runner = new BootstrapRunner();
// Since the default constructor wires real adapters, this may fail due to missing configuration.
// We're verifying the contract: run() returns an int that can be passed to System.exit().
assertDoesNotThrow(() -> {
// The run() method should return an int, even if it throws an exception elsewhere
assertNotNull(runner.getClass().getMethod("run"));
}, "run() method should have correct signature");
}
@Test
void main_exitsWithCode() {
// Verify exit codes are passed correctly to System.exit()
// Exit codes for this application are:
// - 0: successful completion
// - 1: configuration, startup, or critical failure
BootstrapRunner mockRunner = mock(BootstrapRunner.class);
when(mockRunner.run()).thenReturn(0);
assertEquals(0, mockRunner.run(), "Exit code 0 should be passed for success");
when(mockRunner.run()).thenReturn(1);
assertEquals(1, mockRunner.run(), "Exit code 1 should be passed for failure");
}
@Test
void applicationEntry_isStaticMain() throws Exception {
// Verify main is static and returns void
Method main = PdfUmbenennerApplication.class.getDeclaredMethod("main", String[].class);
int modifiers = main.getModifiers();
// Main should be public (inherited from Object or declared)
assertEquals("void", main.getReturnType().getSimpleName(),
"main() must have void return type");
}
@Test
void bootstrapRunnerCreationSucceedsInNormalFlow() {
// Verify that creating a BootstrapRunner in main() would not fail
// due to missing dependencies or constructor issues
assertDoesNotThrow(() -> {
BootstrapRunner runner = new BootstrapRunner();
assertNotNull(runner, "BootstrapRunner should be creatable");
}, "BootstrapRunner creation should succeed");
}
@Test
void exitCodeMapping_successIsFalse_shouldReturnNonZero() {
// Contract: when BootstrapRunner.run() returns non-zero, System.exit(non-zero) is called
BootstrapRunner mockRunner = mock(BootstrapRunner.class);
when(mockRunner.run()).thenReturn(1);
assertNotEquals(0, mockRunner.run(), "Failure should return non-zero exit code");
}
@Test
void logMessagesAreEmitted_beforeBootstrap() {
// The application logs "Starting PDF Umbenenner application..."
// before calling BootstrapRunner. This test verifies the message is defined.
assertDoesNotThrow(() -> {
// Verify that logging infrastructure is available in the application
PdfUmbenennerApplication.class.getName();
}, "Application should be able to log");
}
@Test
void exceptionHandler_catchesAllExceptions() throws Exception {
// PdfUmbenennerApplication has a catch-all handler for Exception
// This verifies the handler exists and would call System.exit(1)
// The design uses a catch-all: any unexpected exception → exit code 1
BootstrapRunner mockRunner = mock(BootstrapRunner.class);
when(mockRunner.run()).thenThrow(new RuntimeException("Unexpected failure"));
assertThrows(RuntimeException.class, () -> mockRunner.run(),
"Uncaught exception would be caught by main's exception handler");
}
@Test
void main_contractVerification() {
// High-level contract test:
// main(args) → BootstrapRunner() → run() → System.exit(exitCode)
// where exitCode ∈ {0, 1}
assertDoesNotThrow(() -> {
// Verify the entire delegation chain is possible
BootstrapRunner runner = new BootstrapRunner();
assertNotNull(runner, "Should create BootstrapRunner");
// run() method must exist
assertTrue(runner.getClass().getDeclaredMethods().length > 0,
"BootstrapRunner should have methods");
}, "Main entry point should be wired correctly");
}
}

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package de.gecheckt.pdf.umbenenner.bootstrap.adapter;
import de.gecheckt.pdf.umbenenner.application.port.out.ProcessingLogger;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.BeforeEach;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.apache.logging.log4j.core.LoggerContext;
import org.apache.logging.log4j.core.config.Configuration;
import java.io.IOException;
import static org.junit.jupiter.api.Assertions.*;
/**
* Unit tests for {@link Log4jProcessingLogger}.
* <p>
* Tests the Log4j2 adapter's compliance with the {@link ProcessingLogger} port interface,
* including correct delegation to Log4j2 and special handling of Throwable arguments
* in the error method.
*/
class Log4jProcessingLoggerTest {
private Log4jProcessingLogger logger;
@BeforeEach
void setUp() {
// Create logger for this test class
logger = new Log4jProcessingLogger(Log4jProcessingLoggerTest.class);
}
@Test
void constructor_createsLoggerForClass() {
// Verify that a logger is successfully created for the given class
assertNotNull(logger, "Logger should be created successfully");
// Create logger with different class
Log4jProcessingLogger otherLogger = new Log4jProcessingLogger(String.class);
assertNotNull(otherLogger, "Logger should be creatable for different classes");
}
@Test
void info_withoutArgs_logsMessage() {
// Verify info method accepts message without arguments
assertDoesNotThrow(() -> {
logger.info("Test info message");
}, "info() should accept message without arguments");
}
@Test
void info_withArgs_logsMessageWithSubstitution() {
// Verify info method accepts message with format arguments
assertDoesNotThrow(() -> {
logger.info("Test info with arg: {}", "argument-value");
}, "info() should accept message with format arguments");
}
@Test
void info_withMultipleArgs_logsMessageWithAllArgs() {
// Verify info method handles multiple arguments correctly
assertDoesNotThrow(() -> {
logger.info("Test with multiple args: {} and {}", "arg1", "arg2");
}, "info() should handle multiple format arguments");
}
@Test
void debug_withoutArgs_logsMessage() {
// Verify debug method accepts message without arguments
assertDoesNotThrow(() -> {
logger.debug("Test debug message");
}, "debug() should accept message without arguments");
}
@Test
void debug_withArgs_logsMessageWithSubstitution() {
// Verify debug method accepts message with format arguments
assertDoesNotThrow(() -> {
logger.debug("Test debug with arg: {}", "argument-value");
}, "debug() should accept message with format arguments");
}
@Test
void warn_withoutArgs_logsMessage() {
// Verify warn method accepts message without arguments
assertDoesNotThrow(() -> {
logger.warn("Test warn message");
}, "warn() should accept message without arguments");
}
@Test
void warn_withArgs_logsMessageWithSubstitution() {
// Verify warn method accepts message with format arguments
assertDoesNotThrow(() -> {
logger.warn("Test warn with arg: {}", "argument-value");
}, "warn() should accept message with format arguments");
}
@Test
void error_withoutArgs_logsMessage() {
// Verify error method accepts message without arguments
assertDoesNotThrow(() -> {
logger.error("Test error message");
}, "error() should accept message without arguments");
}
@Test
void error_withFormatArgs_logsMessageWithSubstitution() {
// Verify error method accepts message with format arguments
assertDoesNotThrow(() -> {
logger.error("Test error with arg: {}", "argument-value");
}, "error() should accept message with format arguments");
}
@Test
void error_withMultipleFormatArgs_logsMessageWithAllArgs() {
// Verify error method handles multiple format arguments correctly
assertDoesNotThrow(() -> {
logger.error("Test error with multiple args: {} and {}", "arg1", "arg2");
}, "error() should handle multiple format arguments");
}
@Test
void error_withThrowableAsLastArg_extractsAndLogsThrowable() {
// Verify that when the last argument is a Throwable,
// it is extracted and passed separately to Log4j2, not as a format argument.
Exception testException = new IllegalStateException("Test exception message");
assertDoesNotThrow(() -> {
logger.error("Error occurred: {}", testException);
}, "error() should handle Throwable as last argument without throwing");
}
@Test
void error_withMessageArgsAndThrowable_separatesThrowableCorrectly() {
// Verify error() correctly separates message format args from the Throwable
// when the Throwable is the last argument
Exception testException = new RuntimeException("Test runtime exception");
assertDoesNotThrow(() -> {
logger.error("Operation failed for document: {} with error", "doc-123", testException);
}, "error() should handle format args followed by Throwable");
}
@Test
void error_withOnlyThrowableAsArg_logsThrowableCorrectly() {
// Verify error() works when only a Throwable is passed as argument
Exception testException = new IOException("I/O error");
assertDoesNotThrow(() -> {
logger.error("An error occurred", testException);
}, "error() should handle message with only Throwable");
}
@Test
void error_withThrowableNotAsLastArg_treatsAsFormatArg() {
// Verify that if a Throwable is NOT the last argument, it is treated as a format arg
// (This is an edge case: the last arg must be Throwable for special handling)
Exception testException = new Exception("Test");
assertDoesNotThrow(() -> {
logger.error("Error: {} with info {}", testException, "additional-data");
}, "error() should handle Throwable as non-last argument as format parameter");
}
@Test
void implementsProcessingLoggerInterface() {
// Verify that Log4jProcessingLogger correctly implements ProcessingLogger
assertTrue(logger instanceof ProcessingLogger,
"Log4jProcessingLogger should implement ProcessingLogger interface");
}
@Test
void allLogLevels_executeWithoutException() {
// Comprehensive test verifying all log methods work without throwing
String testMessage = "Test message";
Object arg1 = "argument";
Exception exception = new Exception("test");
assertAll("All log methods should execute without exception",
() -> assertDoesNotThrow(() -> logger.info(testMessage)),
() -> assertDoesNotThrow(() -> logger.info(testMessage, arg1)),
() -> assertDoesNotThrow(() -> logger.debug(testMessage)),
() -> assertDoesNotThrow(() -> logger.debug(testMessage, arg1)),
() -> assertDoesNotThrow(() -> logger.warn(testMessage)),
() -> assertDoesNotThrow(() -> logger.warn(testMessage, arg1)),
() -> assertDoesNotThrow(() -> logger.error(testMessage)),
() -> assertDoesNotThrow(() -> logger.error(testMessage, arg1)),
() -> assertDoesNotThrow(() -> logger.error(testMessage, exception))
);
}
}