1 files changed, 135 insertions, 0 deletions
diff --git a/src/test/java/org/apache/commons/lang3/ClassPathUtilsTest.java b/src/test/java/org/apache/commons/lang3/ClassPathUtilsTest.java
new file mode 100644
index 000000000..d69fe3e5c
--- /dev/null
+++ b/src/test/java/org/apache/commons/lang3/ClassPathUtilsTest.java
@@ -0,0 +1,135 @@
+/*
+ * 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.commons.lang3;
+
+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 java.lang.reflect.Constructor;
+import java.lang.reflect.Modifier;
+
+import org.junit.jupiter.api.Test;
+
+/**
+ */
+public class ClassPathUtilsTest extends AbstractLangTest {
+
+    @Test
+    public void testConstructor() {
+        assertNotNull(new ClassPathUtils());
+        final Constructor<?>[] cons = ClassPathUtils.class.getDeclaredConstructors();
+        assertEquals(1, cons.length);
+        assertTrue(Modifier.isPublic(cons[0].getModifiers()));
+        assertTrue(Modifier.isPublic(ClassPathUtils.class.getModifiers()));
+        assertFalse(Modifier.isFinal(ClassPathUtils.class.getModifiers()));
+    }
+
+    @Test
+    public void testPackageToPath() {
+        assertEquals("a", ClassPathUtils.packageToPath("a"));
+        assertEquals("a/b", ClassPathUtils.packageToPath("a.b"));
+        assertEquals("a/b/c", ClassPathUtils.packageToPath("a.b.c"));
+    }
+
+    @Test
+    public void testPathToPackage() {
+        assertEquals("a", ClassPathUtils.pathToPackage("a"));
+        assertEquals("a.b", ClassPathUtils.pathToPackage("a/b"));
+        assertEquals("a.b.c", ClassPathUtils.pathToPackage("a/b/c"));
+    }
+
+    @Test
+    public void testToFullyQualifiedNameNullClassString() {
+        assertThrows(NullPointerException.class,
+                () -> ClassPathUtils.toFullyQualifiedName((Class<?>) null, "Test.properties"));
+    }
+
+    @Test
+    public void testToFullyQualifiedNameClassNull() {
+        assertThrows(NullPointerException.class, () -> ClassPathUtils.toFullyQualifiedName(ClassPathUtils.class, null));
+    }
+
+    @Test
+    public void testToFullyQualifiedNameClassString() {
+        final String expected = "org.apache.commons.lang3.Test.properties";
+        final String actual = ClassPathUtils.toFullyQualifiedName(ClassPathUtils.class, "Test.properties");
+
+        assertEquals(expected, actual);
+    }
+
+    @Test
+    public void testToFullyQualifiedNameNullPackageString() {
+        assertThrows(NullPointerException.class,
+                () -> ClassPathUtils.toFullyQualifiedName((Package) null, "Test.properties"));
+    }
+
+    @Test
+    public void testToFullyQualifiedNamePackageNull() {
+        assertThrows(NullPointerException.class,
+                () -> ClassPathUtils.toFullyQualifiedName(ClassPathUtils.class.getPackage(), null));
+    }
+
+    @Test
+    public void testToFullyQualifiedNamePackageString() {
+        final String expected = "org.apache.commons.lang3.Test.properties";
+        final String actual = ClassPathUtils.toFullyQualifiedName(ClassPathUtils.class.getPackage(), "Test.properties");
+
+        assertEquals(expected, actual);
+    }
+
+    @Test
+    public void testToFullyQualifiedPathClassNullString() {
+        assertThrows(NullPointerException.class,
+                () -> ClassPathUtils.toFullyQualifiedPath((Class<?>) null, "Test.properties"));
+    }
+
+    @Test
+    public void testToFullyQualifiedPathClassNull() {
+        assertThrows(NullPointerException.class, () -> ClassPathUtils.toFullyQualifiedPath(ClassPathUtils.class, null));
+    }
+
+    @Test
+    public void testToFullyQualifiedPathClass() {
+        final String expected = "org/apache/commons/lang3/Test.properties";
+        final String actual = ClassPathUtils.toFullyQualifiedPath(ClassPathUtils.class, "Test.properties");
+
+        assertEquals(expected, actual);
+    }
+
+    @Test
+    public void testToFullyQualifiedPathPackageNullString() {
+        assertThrows(NullPointerException.class,
+                () -> ClassPathUtils.toFullyQualifiedPath((Package) null, "Test.properties"));
+    }
+
+    @Test
+    public void testToFullyQualifiedPathPackageNull() {
+        assertThrows(NullPointerException.class,
+                () -> ClassPathUtils.toFullyQualifiedPath(ClassPathUtils.class.getPackage(), null));
+    }
+
+    @Test
+    public void testToFullyQualifiedPathPackage() {
+        final String expected = "org/apache/commons/lang3/Test.properties";
+        final String actual = ClassPathUtils.toFullyQualifiedPath(ClassPathUtils.class.getPackage(), "Test.properties");
+
+        assertEquals(expected, actual);
+    }
+}