diff --git a/echosvg-test/src/test/java/io/sf/carte/echosvg/test/TestLocationsTest.java b/echosvg-test/src/test/java/io/sf/carte/echosvg/test/TestLocationsTest.java
new file mode 100644
index 000000000..9c4658ca7
--- /dev/null
+++ b/echosvg-test/src/test/java/io/sf/carte/echosvg/test/TestLocationsTest.java
@@ -0,0 +1,44 @@
+/*
+ * See the NOTICE file distributed with this work for additional
+ * information regarding copyright ownership.
+ *
+ * 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.
+ */
+package io.sf.carte.echosvg.test;
+
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+import java.io.IOException;
+
+import org.junit.jupiter.api.Test;
+
+/**
+ * Detect location issues early by checking test locations.
+ */
+public class TestLocationsTest {
+
+	@Test
+	public void testProjectRoot() throws IOException {
+		assertNotNull(TestLocations.PROJECT_ROOT_URL);
+		assertTrue(TestLocations.PROJECT_ROOT_URL.length() > 2);
+	}
+
+	@Test
+	public void testGetTestProjectBuildPath() throws IOException {
+		String path = TestLocations.getTestProjectBuildPath();
+		assertNotNull(path);
+		assertTrue(path.length() > 8);
+	}
+
+}