Add MapPaintUtilsTest

Signed-off-by: Taylor Smock <taylor.smock@kaart.com>

test/resources/wiremock/mappings/josmfile-Styles-MapWithAI.json

@@ -0,0 +1,15 @@
+{
+    "request": {
+        "method": "GET",
+        "url": "/josmfile?page=Styles/MapWithAI&zip=1"
+    },
+    "response": {
+        "status": 200,
+        "bodyFileName": "josmfile?page=Styles/MapWithAI&zip=1",
+        "headers": {
+            "Content-Type": "application/zip",
+            "Content-Disposition": "attachment; filename=Styles_MapWithAI.zip",
+            "Content-Length": "8103"
+        }
+    }
+}

test/unit/org/openstreetmap/josm/plugins/mapwithai/tools/MapPaintUtilsTest.java

@@ -0,0 +1,48 @@
+// License: GPL. For details, see LICENSE file.
+package org.openstreetmap.josm.plugins.mapwithai.tools;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+import java.io.IOException;
+import java.util.List;
+
+import org.awaitility.Awaitility;
+import org.awaitility.Durations;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.RegisterExtension;
+import org.openstreetmap.josm.data.osm.DataSet;
+import org.openstreetmap.josm.gui.mappaint.MapPaintStyles;
+import org.openstreetmap.josm.gui.mappaint.StyleSource;
+import org.openstreetmap.josm.gui.mappaint.mapcss.MapCSSStyleSource;
+import org.openstreetmap.josm.io.CachedFile;
+import org.openstreetmap.josm.plugins.mapwithai.testutils.MapWithAITestRules;
+import org.openstreetmap.josm.testutils.JOSMTestRules;
+
+public class MapPaintUtilsTest {
+    @RegisterExtension
+    JOSMTestRules rule = new MapWithAITestRules().wiremock();
+
+    @Test
+    public void testAddPaintStyle() {
+        MapPaintUtils.removeMapWithAIPaintStyles();
+        Awaitility.await().atMost(Durations.TEN_SECONDS).until(() -> !MapPaintUtils.checkIfMapWithAIPaintStyleExists());
+        List<StyleSource> paintStyles = MapPaintStyles.getStyles().getStyleSources();
+        for (int i = 0; i < 10; i++) {
+            MapPaintUtils.addMapWithAIPaintStyles();
+            paintStyles = MapPaintStyles.getStyles().getStyleSources();
+            assertEquals(1, paintStyles.stream().filter(s -> s.title.contains("MapWithAI")).count(),
+                    "The paintstyle should have been added, but only one of it");
+        }
+    }
+
+    @Test
+    public void testStableSource() throws IOException {
+        MapCSSStyleSource mapcssSource = new MapCSSStyleSource(MapPaintUtils.getMapWithAIPaintStyle());
+        mapcssSource.loadStyleSource();
+        try (CachedFile file = new CachedFile(mapcssSource.url)) {
+            file.clear();
+            MapPaintUtils.addSourcesToPaintStyle(new DataSet());
+        }
+    }
+
+}