Improve coverage, fix another style issue

tinylog-provider/src/main/java/io/github/vitalijr2/logging/mock/tinylog/MockLoggerException.java

@@ -0,0 +1,28 @@
+/*-
+ * ---------------LICENSE_START-----------------
+ * Mock Loggers
+ * ---------------------------------------------
+ * Copyright (C) 2024 Vitalij Berdinskih
+ * ---------------------------------------------
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ---------------LICENSE_END-------------------
+ */
+package io.github.vitalijr2.logging.mock.tinylog;
+
+public class MockLoggerException extends RuntimeException {
+
+  public MockLoggerException(String message, Throwable cause) {
+    super(message, cause);
+  }
+
+}

tinylog-provider/src/main/java/io/github/vitalijr2/logging/mock/tinylog/MockTinylogProvider.java

@@ -1,3 +1,22 @@
+/*-
+ * ---------------LICENSE_START-----------------
+ * Mock Loggers
+ * ---------------------------------------------
+ * Copyright (C) 2024 Vitalij Berdinskih
+ * ---------------------------------------------
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ---------------LICENSE_END-------------------
+ */
 package io.github.vitalijr2.logging.mock.tinylog;
 
 import java.lang.annotation.ElementType;

tinylog-provider/src/main/java/io/github/vitalijr2/logging/mock/tinylog/MockTinylogProviderExtension.java

@@ -1,6 +1,26 @@
+/*-
+ * ---------------LICENSE_START-----------------
+ * Mock Loggers
+ * ---------------------------------------------
+ * Copyright (C) 2024 Vitalij Berdinskih
+ * ---------------------------------------------
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ---------------LICENSE_END-------------------
+ */
 package io.github.vitalijr2.logging.mock.tinylog;
 
 import java.util.stream.Stream;
+import org.jetbrains.annotations.VisibleForTesting;
 import org.junit.jupiter.api.extension.ExtensionContext;
 import org.junit.jupiter.api.extension.ParameterContext;
 import org.junit.jupiter.api.extension.ParameterResolutionException;
@@ -10,18 +30,23 @@
 
 public class MockTinylogProviderExtension implements TestInstancePostProcessor, ParameterResolver {
 
+  @VisibleForTesting
+  static void injectMockProvider(Object testInstance, Class<?> testClass) {
+    Stream.of(testClass.getDeclaredFields()).filter(
+        field -> field.isAnnotationPresent(MockTinylogProvider.class) && field.getType()
+            .isAssignableFrom(LoggingProvider.class)).forEach(field -> {
+      field.setAccessible(true);
+      try {
+        field.set(testInstance, MockLoggerProvider.MOCK_INSTANCE);
+      } catch (IllegalAccessException | RuntimeException exception) {
+        throw new MockLoggerException("Cannot inject a mock provider", exception);
+      }
+    });
+  }
+
   @Override
   public void postProcessTestInstance(Object testInstance, ExtensionContext context) {
-    Stream.of(testInstance.getClass().getDeclaredFields())
-        .filter(field -> field.isAnnotationPresent(MockTinylogProvider.class) && field.getType()
-            .isAssignableFrom(LoggingProvider.class)).forEach(field -> {
-          field.setAccessible(true);
-          try {
-            field.set(testInstance, MockLoggerProvider.MOCK_INSTANCE);
-          } catch (IllegalAccessException exception) {
-            throw new RuntimeException(exception);
-          }
-        });
+    injectMockProvider(testInstance, testInstance.getClass());
   }
 
   @Override

tinylog-provider/src/test/java/io/github/vitalijr2/logging/mock/tinylog/MockTinylogProviderExtensionFastTest.java

@@ -3,8 +3,10 @@
 import static org.hamcrest.MatcherAssert.assertThat;
 import static org.hamcrest.core.IsInstanceOf.instanceOf;
 import static org.junit.jupiter.api.Assertions.assertAll;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertFalse;
 import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertThrows;
 import static org.junit.jupiter.api.Assertions.assertTrue;
 import static org.mockito.Mockito.when;
 
@@ -71,4 +73,22 @@ void resolveParameter() {
         () -> assertThat(value, instanceOf(LoggingProvider.class)));
   }
 
+  @DisplayName("Throw an exception on injection")
+  @Test
+  void throwExceptionOnInjection() {
+    // when
+    var exception = assertThrows(MockLoggerException.class,
+        () -> MockTinylogProviderExtension.injectMockProvider(null, JustTest.class));
+
+    // then
+    assertEquals("Cannot inject a mock provider", exception.getMessage());
+  }
+
+  static class JustTest {
+
+    @MockTinylogProvider
+    private LoggingProvider provider;
+
+  }
+
 }

tinylog-provider/src/test/java/io/github/vitalijr2/logging/mock/tinylog/MockTinylogProviderExtensionSlowTest.java

@@ -29,7 +29,7 @@ void setUp() {
 
   @DisplayName("Happy path")
   @Test
-  void happyPath() throws IllegalAccessException {
+  void happyPath() {
     // given
     var testInstance = new HappyTest();
 
@@ -43,7 +43,7 @@ void happyPath() throws IllegalAccessException {
 
   @DisplayName("Unannotated field")
   @Test
-  void unannotatedField() throws IllegalAccessException {
+  void unannotatedField() {
     // given
     var testInstance = new UnannotatedFieldTest();
 
@@ -56,7 +56,7 @@ void unannotatedField() throws IllegalAccessException {
 
   @DisplayName("Wrong type")
   @Test
-  void wrongType() throws IllegalAccessException {
+  void wrongType() {
     // given
     var testInstance = new WrongTypeTest();