Add new Unit Tests (#11470)

Co-authored-by: TheRealHaui <[email protected]>

Author: TheRealHaui

impl/maven-core/src/test/java/org/apache/maven/RepositoryUtilsTest.java

@@ -0,0 +1,35 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.
+ */
+package org.apache.maven;
+
+import org.apache.maven.artifact.Artifact;
+import org.eclipse.aether.graph.Dependency;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertNull;
+
+class RepositoryUtilsTest {
+
+    @Test
+    void testToArtifactMethodsReturnNullWhenInputParameterIsNull() {
+        assertNull(RepositoryUtils.toArtifact((Dependency) null));
+        assertNull(RepositoryUtils.toArtifact((Artifact) null));
+        assertNull(RepositoryUtils.toArtifact((org.apache.maven.artifact.Artifact) null));
+    }
+}

impl/maven-core/src/test/java/org/apache/maven/project/MavenProjectTest.java

@@ -20,9 +20,13 @@
 
 import java.io.File;
 import java.io.IOException;
+import java.nio.file.Path;
 import java.util.List;
 import java.util.Map;
 
+import org.apache.maven.api.Language;
+import org.apache.maven.api.ProjectScope;
+import org.apache.maven.impl.DefaultSourceRoot;
 import org.apache.maven.model.DependencyManagement;
 import org.apache.maven.model.Model;
 import org.apache.maven.model.Parent;
@@ -212,6 +216,36 @@ void testAddDotFile() {
         assertEquals(1, project.getCompileSourceRoots().size());
     }
 
+    @Test
+    void testRemoveSourceRoot() {
+        MavenProject project = new MavenProject();
+
+        File basedir = new File(System.getProperty("java.io.tmpdir"));
+        project.setFile(new File(basedir, "file"));
+
+        assertEquals(0, project.getSourceRoots().size());
+
+        project.addSourceRoot(new DefaultSourceRoot(
+                ProjectScope.MAIN, Language.JAVA_FAMILY, Path.of(basedir.getAbsolutePath(), "src/main/java")));
+
+        assertEquals(1, project.getSourceRoots().size());
+
+        // Try to remove a different directory
+        project.removeSourceRoot(ProjectScope.MAIN, Language.JAVA_FAMILY, "src/test/java");
+
+        assertEquals(1, project.getSourceRoots().size());
+
+        // Try to remove a different scope
+        project.removeSourceRoot(ProjectScope.TEST, Language.JAVA_FAMILY, "src/main/java");
+
+        assertEquals(1, project.getSourceRoots().size());
+
+        // Remove previously added root
+        project.removeSourceRoot(ProjectScope.MAIN, Language.JAVA_FAMILY, "src/main/java");
+
+        assertEquals(0, project.getSourceRoots().size());
+    }
+
     private void assertNoNulls(List<String> elements) {
         assertFalse(elements.contains(null), "Expected " + elements + " to not contain " + null);
     }