Add unit tests for Links utility class

Author: ctrueden

src/test/java/org/scijava/links/LinksTest.java

@@ -0,0 +1,96 @@
+/*-
+ * #%L
+ * URL scheme handlers for SciJava.
+ * %%
+ * Copyright (C) 2023 - 2025 SciJava developers.
+ * %%
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * 
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ * #L%
+ */
+
+package org.scijava.links;
+
+import org.junit.Test;
+
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.util.HashMap;
+import java.util.Map;
+
+import static org.junit.Assert.assertArrayEquals;
+import static org.junit.Assert.assertEquals;
+
+/**
+ * Tests {@link Links}.
+ *
+ * @author Curtis Rueden
+ */
+public class LinksTest {
+
+	private static final URI TEST_URI;
+
+	static {
+		try {
+			TEST_URI = new URI(
+				"scijava://user:pass@example.com:8080/op/sub/resource?" +
+				"fruit=apple&veggie=beans#section"
+			);
+		}
+		catch (URISyntaxException e) {
+			throw new RuntimeException(e);
+		}
+	}
+
+	@Test
+	public void testPath() {
+		var actual = Links.path(TEST_URI);
+		assertEquals("op/sub/resource", actual);
+	}
+
+	@Test
+	public void testOperation() {
+		var actual = Links.operation(TEST_URI);
+		assertEquals("op", actual);
+	}
+
+	@Test
+	public void testPathFragments() {
+		String[] expected = {"op", "sub", "resource"};
+		var actual = Links.pathFragments(TEST_URI);
+		assertArrayEquals(expected, actual);
+	}
+
+	@Test
+	public void testSubPath() {
+		var actual = Links.subPath(TEST_URI);
+		assertEquals("sub/resource", actual);
+	}
+
+	@Test
+	public void testQuery() {
+		Map<String, String> expected = new HashMap<>();
+		expected.put("fruit", "apple");
+		expected.put("veggie", "beans");
+		var actual = Links.query(TEST_URI);
+		assertEquals(expected, actual);
+	}
+}