diff --git a/flatmap-core/src/test/java/com/onthegomap/flatmap/FeatureMergeTest.java b/flatmap-core/src/test/java/com/onthegomap/flatmap/FeatureMergeTest.java
index f189790e..27c801d0 100644
--- a/flatmap-core/src/test/java/com/onthegomap/flatmap/FeatureMergeTest.java
+++ b/flatmap-core/src/test/java/com/onthegomap/flatmap/FeatureMergeTest.java
@@ -16,9 +16,13 @@ import org.junit.jupiter.api.Test;
 import org.junit.jupiter.params.ParameterizedTest;
 import org.junit.jupiter.params.provider.CsvSource;
 import org.locationtech.jts.geom.Geometry;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 public class FeatureMergeTest {
 
+  private static final Logger LOGGER = LoggerFactory.getLogger(FeatureMergeTest.class);
+
   private VectorTile.Feature feature(long id, Geometry geom, Map<String, Object> attrs) {
     return new VectorTile.Feature(
       "layer",
@@ -579,8 +583,9 @@ public class FeatureMergeTest {
     "bostonbuildings.mbtiles, 2479, 3028, 13, 1074",
     "jakartabuildings.mbtiles, 6527, 4240, 13, 410"
   })
-  public void testMergeManyPolygons(String file, int x, int y, int z, int expected)
+  public void testMergeManyPolygons__TAKES_A_MINUTE_OR_TWO(String file, int x, int y, int z, int expected)
     throws IOException, GeometryException {
+    LOGGER.warn("Testing complex polygon merging for " + file + " " + z + "/" + x + "/" + y + " ...");
     try (var db = Mbtiles.newReadOnlyDatabase(TestUtils.pathToResource(file))) {
       byte[] tileData = db.getTile(x, y, z);
       byte[] gunzipped = TestUtils.gunzip(tileData);
diff --git a/flatmap-core/src/test/java/com/onthegomap/flatmap/FlatmapTests.java b/flatmap-core/src/test/java/com/onthegomap/flatmap/FlatmapTests.java
index 1b5e9545..89b602db 100644
--- a/flatmap-core/src/test/java/com/onthegomap/flatmap/FlatmapTests.java
+++ b/flatmap-core/src/test/java/com/onthegomap/flatmap/FlatmapTests.java
@@ -52,12 +52,16 @@ import org.locationtech.jts.geom.Geometry;
 import org.locationtech.jts.geom.MultiPolygon;
 import org.locationtech.jts.io.InputStreamInStream;
 import org.locationtech.jts.io.WKBReader;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 /**
  * In-memory tests with fake data and profiles to ensure all features work end-to-end.
  */
 public class FlatmapTests {
 
+  private static final Logger LOGGER = LoggerFactory.getLogger(FlatmapTests.class);
+
   private static final String TEST_PROFILE_NAME = "test name";
   private static final String TEST_PROFILE_DESCRIPTION = "test description";
   private static final String TEST_PROFILE_ATTRIBUTION = "test attribution";
@@ -678,6 +682,7 @@ public class FlatmapTests {
   })
   public void testComplexShorelinePolygons__TAKES_A_MINUTE_OR_TWO(String fileName, int expected)
     throws Exception {
+    LOGGER.warn("Testing complex shoreline processing for " + fileName + " ...");
     MultiPolygon geometry = (MultiPolygon) new WKBReader()
       .read(new InputStreamInStream(Files.newInputStream(TestUtils.pathToResource(fileName))));
     assertNotNull(geometry);