fix test config

diylc/diylc-library/src/test/java/org/diylc/TestConfiguration.java

@@ -0,0 +1,102 @@
+/*
+
+    DIY Layout Creator (DIYLC).
+    Copyright (c) 2009-2025 held jointly by the individual authors.
+
+    This file is part of DIYLC.
+
+    DIYLC is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    DIYLC is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with DIYLC.  If not, see <http://www.gnu.org/licenses/>.
+
+*/
+package org.diylc;
+
+import java.io.File;
+import java.io.IOException;
+import java.lang.reflect.Field;
+import java.nio.file.Files;
+import java.util.Map;
+
+import org.diylc.appframework.miscutils.ConfigurationManager;
+import org.diylc.appframework.miscutils.InMemoryConfigurationManager;
+
+import org.diylc.serialization.ProjectFileManager;
+
+/**
+ * Gives a test a blank configuration: both the shared {@link ConfigurationManager} and the shared
+ * {@link InMemoryConfigurationManager} start empty on every call, with no listeners, so nothing a
+ * previous test or a previous run saved or registered can influence the next one. The
+ * configuration lives in a temporary directory, never in the user's own {@code ~/diylc}:
+ * initializing against the real {@code config.xml} copied it to a new
+ * {@code config.xml.<timestamp>} on every run that could not read it, and left that file exposed
+ * to whatever a test might write.
+ *
+ * @author Branislav Stojkovic
+ */
+public final class TestConfiguration {
+
+  private static final String APP_NAME = "diylc";
+
+  private static File directory;
+
+  private TestConfiguration() {}
+
+  public static synchronized void initialize() {
+    ConfigurationManager configurationManager = ConfigurationManager.getInstance();
+    if (directory == null) {
+      ProjectFileManager.configure(configurationManager.getSerializer());
+      try {
+        directory = Files.createTempDirectory("diylc-test").toFile();
+      } catch (IOException e) {
+        throw new IllegalStateException("Could not create a temporary configuration directory", e);
+      }
+    }
+    // initialize() reads back whatever an earlier test saved, and starts empty only without a file
+    new File(directory, APP_NAME + File.separator + "config.xml").delete();
+    // the configuration directory is resolved from user.home once, inside initialize()
+    String userHome = System.getProperty("user.home");
+    try {
+      System.setProperty("user.home", directory.getAbsolutePath());
+      configurationManager.initialize(APP_NAME);
+    } finally {
+      System.setProperty("user.home", userHome);
+    }
+    clearListeners(configurationManager);
+    resetInMemoryConfiguration();
+  }
+
+  // initialize() replaces the values but keeps the listeners, so objects from earlier tests, such
+  // as a CustomTreeModel nothing displays any more, would still react to this test's writes
+  private static void clearListeners(ConfigurationManager configurationManager) {
+    try {
+      Field listeners = ConfigurationManager.class.getDeclaredField("listeners");
+      listeners.setAccessible(true);
+      ((Map<?, ?>) listeners.get(configurationManager)).clear();
+    } catch (ReflectiveOperationException e) {
+      throw new IllegalStateException("Could not clear configuration listeners", e);
+    }
+  }
+
+  // InMemoryConfigurationManager offers no way to clear its singleton, which every presenter that
+  // tests create shares, including the one inside CloudSyncJob; getInstance() makes a new, empty
+  // one once the field is cleared
+  private static void resetInMemoryConfiguration() {
+    try {
+      Field instance = InMemoryConfigurationManager.class.getDeclaredField("instance");
+      instance.setAccessible(true);
+      instance.set(null, null);
+    } catch (ReflectiveOperationException e) {
+      throw new IllegalStateException("Could not reset the in-memory configuration", e);
+    }
+  }
+}

diylc/diylc-library/src/test/java/org/diylc/components/DeletedVariantsTest.java

@@ -29,9 +29,9 @@ import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 
-import org.diylc.appframework.miscutils.ConfigurationManager;
 import org.diylc.appframework.miscutils.IConfigListener;
 import org.diylc.appframework.miscutils.IConfigurationManager;
+import org.diylc.TestConfiguration;
 import org.diylc.common.IPlugInPort;
 import org.diylc.core.Template;
 import org.diylc.presenter.VariantManager;
@@ -51,10 +51,7 @@ public class DeletedVariantsTest {
 
   @BeforeClass
   public static void setUp() {
-    try {
-      ConfigurationManager.getInstance().initialize("diylc");
-    } catch (Exception ignored) {
-    }
+    TestConfiguration.initialize();
   }
 
   @SuppressWarnings("unchecked")

diylc/diylc-library/src/test/java/org/diylc/components/FactoryVariantsTest.java

@@ -27,7 +27,7 @@ import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 
-import org.diylc.appframework.miscutils.ConfigurationManager;
+import org.diylc.TestConfiguration;
 import org.diylc.common.PropertyWrapper;
 import org.diylc.core.IDIYComponent;
 import org.diylc.core.Template;
@@ -54,10 +54,7 @@ public class FactoryVariantsTest {
 
   @BeforeClass
   public static void setUp() {
-    try {
-      ConfigurationManager.getInstance().initialize("diylc");
-    } catch (Exception ignored) {
-    }
+    TestConfiguration.initialize();
   }
 
   @SuppressWarnings("unchecked")

diylc/diylc-library/src/test/java/org/diylc/components/displays/CharacterLCDTest.java

@@ -23,7 +23,7 @@ package org.diylc.components.displays;
 
 import java.awt.Color;
 
-import org.diylc.appframework.miscutils.ConfigurationManager;
+import org.diylc.TestConfiguration;
 import org.diylc.common.Display;
 import org.diylc.components.displays.CharacterLCD.LCDInterface;
 import org.diylc.components.displays.CharacterLCD.LCDSize;
@@ -40,10 +40,7 @@ public class CharacterLCDTest {
 
   @BeforeClass
   public static void setUp() {
-    try {
-      ConfigurationManager.getInstance().initialize("diylc");
-    } catch (Exception ignored) {
-    }
+    TestConfiguration.initialize();
   }
 
   private static CharacterLCD of(LCDSize lcdSize, LCDInterface lcdInterface) {

diylc/diylc-library/src/test/java/org/diylc/components/displays/LEDBarGraphTest.java

@@ -24,7 +24,7 @@ package org.diylc.components.displays;
 import java.awt.geom.Point2D;
 import java.awt.geom.Rectangle2D;
 
-import org.diylc.appframework.miscutils.ConfigurationManager;
+import org.diylc.TestConfiguration;
 import org.diylc.common.IComponentTransformer;
 import org.diylc.common.Orientation;
 import org.diylc.components.displays.LEDBarGraph.BarColor;
@@ -43,10 +43,7 @@ public class LEDBarGraphTest {
 
   @BeforeClass
   public static void setUp() {
-    try {
-      ConfigurationManager.getInstance().initialize("diylc");
-    } catch (Exception ignored) {
-    }
+    TestConfiguration.initialize();
   }
 
   /** Each segment has its own anode and cathode, so the package grows with the count. */

diylc/diylc-library/src/test/java/org/diylc/components/displays/LEDMatrixTest.java

@@ -25,7 +25,7 @@ import java.awt.geom.Rectangle2D;
 import java.util.HashSet;
 import java.util.Set;
 
-import org.diylc.appframework.miscutils.ConfigurationManager;
+import org.diylc.TestConfiguration;
 import org.diylc.components.displays.LEDMatrix.Modules;
 import org.diylc.components.maker.MakerBoardTestSupport;
 import org.junit.Assert;
@@ -42,10 +42,7 @@ public class LEDMatrixTest {
 
   @BeforeClass
   public static void setUp() {
-    try {
-      ConfigurationManager.getInstance().initialize("diylc");
-    } catch (Exception ignored) {
-    }
+    TestConfiguration.initialize();
   }
 
   private static double mm(double px) {

diylc/diylc-library/src/test/java/org/diylc/components/displays/Nokia5110LCDTest.java

@@ -25,7 +25,7 @@ import java.awt.Color;
 import java.awt.geom.Point2D;
 import java.awt.geom.Rectangle2D;
 
-import org.diylc.appframework.miscutils.ConfigurationManager;
+import org.diylc.TestConfiguration;
 import org.diylc.common.Display;
 import org.diylc.components.AbstractMakerBoard;
 import org.diylc.components.maker.MakerBoardTestSupport;
@@ -44,10 +44,7 @@ public class Nokia5110LCDTest {
 
   @BeforeClass
   public static void setUp() {
-    try {
-      ConfigurationManager.getInstance().initialize("diylc");
-    } catch (Exception ignored) {
-    }
+    TestConfiguration.initialize();
   }
 
   private static double mm(double px) {

diylc/diylc-library/src/test/java/org/diylc/components/displays/OLEDDisplayTest.java

@@ -28,7 +28,7 @@ import java.util.Arrays;
 import java.util.HashSet;
 import java.util.Set;
 
-import org.diylc.appframework.miscutils.ConfigurationManager;
+import org.diylc.TestConfiguration;
 import org.diylc.common.Display;
 import org.diylc.components.AbstractMakerBoard;
 import org.diylc.components.displays.OLEDDisplay.Layout;
@@ -50,10 +50,7 @@ public class OLEDDisplayTest {
 
   @BeforeClass
   public static void setUp() {
-    try {
-      ConfigurationManager.getInstance().initialize("diylc");
-    } catch (Exception ignored) {
-    }
+    TestConfiguration.initialize();
   }
 
   private static double mm(double px) {

diylc/diylc-library/src/test/java/org/diylc/components/displays/SevenSegmentDisplayTest.java

@@ -25,7 +25,7 @@ import java.awt.geom.Rectangle2D;
 import java.util.HashSet;
 import java.util.Set;
 
-import org.diylc.appframework.miscutils.ConfigurationManager;
+import org.diylc.TestConfiguration;
 import org.diylc.components.displays.SevenSegmentDisplay.Common;
 import org.diylc.components.displays.SevenSegmentDisplay.DisplayType;
 import org.diylc.components.displays.SevenSegmentDisplay.Punctuation;
@@ -44,10 +44,7 @@ public class SevenSegmentDisplayTest {
 
   @BeforeClass
   public static void setUp() {
-    try {
-      ConfigurationManager.getInstance().initialize("diylc");
-    } catch (Exception ignored) {
-    }
+    TestConfiguration.initialize();
   }
 
   private static double mm(double px) {

diylc/diylc-library/src/test/java/org/diylc/components/displays/TFTDisplayTest.java

@@ -29,7 +29,7 @@ import java.awt.image.BufferedImage;
 import java.util.HashSet;
 import java.util.Set;
 
-import org.diylc.appframework.miscutils.ConfigurationManager;
+import org.diylc.TestConfiguration;
 import org.diylc.common.Display;
 import org.diylc.components.AbstractMakerBoard;
 import org.diylc.components.displays.TFTDisplay.Controller;
@@ -51,10 +51,7 @@ public class TFTDisplayTest {
 
   @BeforeClass
   public static void setUp() {
-    try {
-      ConfigurationManager.getInstance().initialize("diylc");
-    } catch (Exception ignored) {
-    }
+    TestConfiguration.initialize();
   }
 
   private static double mm(double px) {

diylc/diylc-library/src/test/java/org/diylc/components/displays/WS2812BBreakoutTest.java

@@ -26,7 +26,7 @@ import java.awt.geom.Rectangle2D;
 import java.util.HashSet;
 import java.util.Set;
 
-import org.diylc.appframework.miscutils.ConfigurationManager;
+import org.diylc.TestConfiguration;
 import org.diylc.components.AbstractMakerBoard;
 import org.diylc.components.maker.MakerBoardTestSupport;
 import org.junit.Assert;
@@ -45,10 +45,7 @@ public class WS2812BBreakoutTest {
 
   @BeforeClass
   public static void setUp() {
-    try {
-      ConfigurationManager.getInstance().initialize("diylc");
-    } catch (Exception ignored) {
-    }
+    TestConfiguration.initialize();
   }
 
   private static double mm(double px) {

diylc/diylc-library/src/test/java/org/diylc/components/displays/WS2812BJewelTest.java

@@ -25,7 +25,7 @@ import java.awt.Shape;
 import java.awt.geom.Point2D;
 import java.awt.geom.Rectangle2D;
 
-import org.diylc.appframework.miscutils.ConfigurationManager;
+import org.diylc.TestConfiguration;
 import org.diylc.components.maker.MakerBoardTestSupport;
 import org.diylc.core.measures.Size;
 import org.diylc.core.measures.SizeUnit;
@@ -44,10 +44,7 @@ public class WS2812BJewelTest {
 
   @BeforeClass
   public static void setUp() {
-    try {
-      ConfigurationManager.getInstance().initialize("diylc");
-    } catch (Exception ignored) {
-    }
+    TestConfiguration.initialize();
   }
 
   private static double mm(double px) {

diylc/diylc-library/src/test/java/org/diylc/components/displays/WS2812BPanelTest.java

@@ -29,7 +29,7 @@ import java.awt.image.BufferedImage;
 import java.util.HashSet;
 import java.util.Set;
 
-import org.diylc.appframework.miscutils.ConfigurationManager;
+import org.diylc.TestConfiguration;
 import org.diylc.components.AbstractMakerBoard;
 import org.diylc.components.displays.WS2812BPanel.Silk;
 import org.diylc.components.maker.MakerBoardTestSupport;
@@ -49,10 +49,7 @@ public class WS2812BPanelTest {
 
   @BeforeClass
   public static void setUp() {
-    try {
-      ConfigurationManager.getInstance().initialize("diylc");
-    } catch (Exception ignored) {
-    }
+    TestConfiguration.initialize();
   }
 
   private static double px(double millimetres) {

diylc/diylc-library/src/test/java/org/diylc/components/displays/WS2812BRingTest.java

@@ -27,7 +27,7 @@ import java.util.Arrays;
 import java.util.HashSet;
 import java.util.Set;
 
-import org.diylc.appframework.miscutils.ConfigurationManager;
+import org.diylc.TestConfiguration;
 import org.diylc.components.AbstractMakerBoard.LedType;
 import org.diylc.components.displays.WS2812BRing.RingSize;
 import org.diylc.components.maker.MakerBoardTestSupport;
@@ -46,10 +46,7 @@ public class WS2812BRingTest {
 
   @BeforeClass
   public static void setUp() {
-    try {
-      ConfigurationManager.getInstance().initialize("diylc");
-    } catch (Exception ignored) {
-    }
+    TestConfiguration.initialize();
   }
 
   private static double mm(double px) {

diylc/diylc-library/src/test/java/org/diylc/components/displays/WS2812BStickTest.java

@@ -26,7 +26,7 @@ import java.awt.geom.Rectangle2D;
 import java.util.HashSet;
 import java.util.Set;
 
-import org.diylc.appframework.miscutils.ConfigurationManager;
+import org.diylc.TestConfiguration;
 import org.diylc.components.AbstractMakerBoard;
 import org.diylc.components.maker.MakerBoardTestSupport;
 import org.junit.Assert;
@@ -42,10 +42,7 @@ public class WS2812BStickTest {
 
   @BeforeClass
   public static void setUp() {
-    try {
-      ConfigurationManager.getInstance().initialize("diylc");
-    } catch (Exception ignored) {
-    }
+    TestConfiguration.initialize();
   }
 
   private static Rectangle2D ledPackage(WS2812BStick stick, int index) {

diylc/diylc-library/src/test/java/org/diylc/components/displays/WS2812BStripTest.java

@@ -26,7 +26,7 @@ import java.awt.geom.Rectangle2D;
 import java.util.HashSet;
 import java.util.Set;
 
-import org.diylc.appframework.miscutils.ConfigurationManager;
+import org.diylc.TestConfiguration;
 import org.diylc.components.AbstractMakerBoard;
 import org.diylc.components.displays.WS2812BStrip.Density;
 import org.diylc.components.maker.MakerBoardTestSupport;
@@ -46,10 +46,7 @@ public class WS2812BStripTest {
 
   @BeforeClass
   public static void setUp() {
-    try {
-      ConfigurationManager.getInstance().initialize("diylc");
-    } catch (Exception ignored) {
-    }
+    TestConfiguration.initialize();
   }
 
   private static double mm(double px) {

diylc/diylc-library/src/test/java/org/diylc/components/maker/BoardRailTest.java

@@ -25,7 +25,7 @@ import org.junit.Assert;
 import org.junit.BeforeClass;
 import org.junit.Test;
 
-import org.diylc.appframework.miscutils.ConfigurationManager;
+import org.diylc.TestConfiguration;
 import org.diylc.core.IDIYComponent;
 import org.diylc.netlist.Node;
 import org.diylc.components.displays.WS2812BStrip;
@@ -51,10 +51,7 @@ public class BoardRailTest {
 
   @BeforeClass
   public static void setUp() {
-    try {
-      ConfigurationManager.getInstance().initialize("diylc");
-    } catch (Exception ignored) {
-    }
+    TestConfiguration.initialize();
   }
 
   @Test

diylc/diylc-library/src/test/java/org/diylc/components/maker/MakerComponentsTest.java

@@ -31,6 +31,7 @@ import java.util.Map;
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
 
+import org.diylc.TestConfiguration;
 import org.diylc.common.ComponentType;
 import org.diylc.common.DefaultComponentTransformer;
 import org.diylc.common.Orientation;
@@ -48,16 +49,12 @@ import org.diylc.presenter.ComponentProcessor;
 import org.junit.Assert;
 import org.junit.BeforeClass;
 import org.junit.Test;
-import org.diylc.appframework.miscutils.ConfigurationManager;
 
 public class MakerComponentsTest {
 
   @BeforeClass
   public static void setUp() {
-    try {
-      ConfigurationManager.getInstance().initialize("diylc");
-    } catch (Exception ignored) {
-    }
+    TestConfiguration.initialize();
   }
 
   private final List<Class<? extends IDIYComponent<?>>> releasedMakerComponentClasses = Arrays.<Class<? extends IDIYComponent<?>>>asList(

diylc/diylc-library/src/test/java/org/diylc/components/maker/MakerVariantSweepTest.java

@@ -35,7 +35,7 @@ import org.junit.Assert;
 import org.junit.BeforeClass;
 import org.junit.Test;
 
-import org.diylc.appframework.miscutils.ConfigurationManager;
+import org.diylc.TestConfiguration;
 import org.diylc.common.ComponentType;
 import org.diylc.common.PropertyWrapper;
 import org.diylc.core.ComponentState;
@@ -92,10 +92,7 @@ public class MakerVariantSweepTest {
 
   @BeforeClass
   public static void setUp() {
-    try {
-      ConfigurationManager.getInstance().initialize("diylc");
-    } catch (Exception ignored) {
-    }
+    TestConfiguration.initialize();
   }
 
   /** Problems are collected so that a run reports every bad variant rather than just the first. */

diylc/diylc-library/src/test/java/org/diylc/plugins/chatbot/service/AiEditScriptEditorTest.java

@@ -41,7 +41,7 @@ import java.util.Set;
 import org.junit.BeforeClass;
 import org.junit.Test;
 
-import org.diylc.appframework.miscutils.ConfigurationManager;
+import org.diylc.TestConfiguration;
 import org.diylc.common.Orientation;
 import org.diylc.components.connectivity.HookupWire;
 import org.diylc.components.electromechanical.ClosedJack1_4;
@@ -81,10 +81,7 @@ public class AiEditScriptEditorTest {
 
   @BeforeClass
   public static void setUp() {
-    try {
-      ConfigurationManager.getInstance().initialize("diylc");
-    } catch (Exception ignored) {
-    }
+    TestConfiguration.initialize();
   }
 
   @Test

diylc/diylc-swing/src/test/java/org/diylc/RegressionTestRunner.java

@@ -19,7 +19,6 @@ import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
-import org.diylc.appframework.miscutils.ConfigurationManager;
 import org.diylc.appframework.miscutils.InMemoryConfigurationManager;
 import org.diylc.appframework.update.VersionNumber;
 import org.diylc.swingframework.export.DrawingExporter;
@@ -52,7 +51,7 @@ public class RegressionTestRunner {
     // System.err.println("Could not initialize log4j configuration: " + e.getMessage());
     // }
 
-    ConfigurationManager.getInstance().initialize("diylc-test");
+    TestConfiguration.initialize();
 
     String basePath = args[0];
     String command = args[1];

diylc/diylc-swing/src/test/java/org/diylc/TestBase.java

@@ -8,7 +8,6 @@ import java.util.List;
 import java.util.Map;
 import java.util.Properties;
 import org.apache.log4j.PropertyConfigurator;
-import org.diylc.appframework.miscutils.ConfigurationManager;
 import org.diylc.appframework.miscutils.InMemoryConfigurationManager;
 
 import org.diylc.common.ComponentType;
@@ -30,7 +29,7 @@ public class TestBase {
         System.err.println("Could not initialize log4j configuration: " + e.getMessage());
     }
     
-    ConfigurationManager.getInstance().initialize("diylc-test");
+    TestConfiguration.initialize();
     view = new MockView();
     presenter = new Presenter(view, InMemoryConfigurationManager.getInstance());
   }

diylc/diylc-swing/src/test/java/org/diylc/TestConfiguration.java

@@ -0,0 +1,102 @@
+/*
+
+    DIY Layout Creator (DIYLC).
+    Copyright (c) 2009-2025 held jointly by the individual authors.
+
+    This file is part of DIYLC.
+
+    DIYLC is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    DIYLC is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with DIYLC.  If not, see <http://www.gnu.org/licenses/>.
+
+*/
+package org.diylc;
+
+import java.io.File;
+import java.io.IOException;
+import java.lang.reflect.Field;
+import java.nio.file.Files;
+import java.util.Map;
+
+import org.diylc.appframework.miscutils.ConfigurationManager;
+import org.diylc.appframework.miscutils.InMemoryConfigurationManager;
+
+import org.diylc.serialization.ProjectFileManager;
+
+/**
+ * Gives a test a blank configuration: both the shared {@link ConfigurationManager} and the shared
+ * {@link InMemoryConfigurationManager} start empty on every call, with no listeners, so nothing a
+ * previous test or a previous run saved or registered can influence the next one. The
+ * configuration lives in a temporary directory, never in the user's own {@code ~/diylc}:
+ * initializing against the real {@code config.xml} copied it to a new
+ * {@code config.xml.<timestamp>} on every run that could not read it, and left that file exposed
+ * to whatever a test might write.
+ *
+ * @author Branislav Stojkovic
+ */
+public final class TestConfiguration {
+
+  private static final String APP_NAME = "diylc";
+
+  private static File directory;
+
+  private TestConfiguration() {}
+
+  public static synchronized void initialize() {
+    ConfigurationManager configurationManager = ConfigurationManager.getInstance();
+    if (directory == null) {
+      ProjectFileManager.configure(configurationManager.getSerializer());
+      try {
+        directory = Files.createTempDirectory("diylc-test").toFile();
+      } catch (IOException e) {
+        throw new IllegalStateException("Could not create a temporary configuration directory", e);
+      }
+    }
+    // initialize() reads back whatever an earlier test saved, and starts empty only without a file
+    new File(directory, APP_NAME + File.separator + "config.xml").delete();
+    // the configuration directory is resolved from user.home once, inside initialize()
+    String userHome = System.getProperty("user.home");
+    try {
+      System.setProperty("user.home", directory.getAbsolutePath());
+      configurationManager.initialize(APP_NAME);
+    } finally {
+      System.setProperty("user.home", userHome);
+    }
+    clearListeners(configurationManager);
+    resetInMemoryConfiguration();
+  }
+
+  // initialize() replaces the values but keeps the listeners, so objects from earlier tests, such
+  // as a CustomTreeModel nothing displays any more, would still react to this test's writes
+  private static void clearListeners(ConfigurationManager configurationManager) {
+    try {
+      Field listeners = ConfigurationManager.class.getDeclaredField("listeners");
+      listeners.setAccessible(true);
+      ((Map<?, ?>) listeners.get(configurationManager)).clear();
+    } catch (ReflectiveOperationException e) {
+      throw new IllegalStateException("Could not clear configuration listeners", e);
+    }
+  }
+
+  // InMemoryConfigurationManager offers no way to clear its singleton, which every presenter that
+  // tests create shares, including the one inside CloudSyncJob; getInstance() makes a new, empty
+  // one once the field is cleared
+  private static void resetInMemoryConfiguration() {
+    try {
+      Field instance = InMemoryConfigurationManager.class.getDeclaredField("instance");
+      instance.setAccessible(true);
+      instance.set(null, null);
+    } catch (ReflectiveOperationException e) {
+      throw new IllegalStateException("Could not reset the in-memory configuration", e);
+    }
+  }
+}

diylc/diylc-swing/src/test/java/org/diylc/swing/plugins/cloud/sync/CloudSyncJobTests.java

@@ -39,8 +39,8 @@ import org.junit.rules.TemporaryFolder;
 
 import com.fasterxml.jackson.databind.ObjectMapper;
 
-import org.diylc.appframework.miscutils.ConfigurationManager;
 import org.diylc.appframework.miscutils.InMemoryConfigurationManager;
+import org.diylc.TestConfiguration;
 import org.diylc.common.DummyView;
 import org.diylc.plugins.cloud.model.IServiceAPI;
 import org.diylc.plugins.cloud.model.ProjectEntity;
@@ -196,7 +196,7 @@ public class CloudSyncJobTests {
   }
 
   private byte[] emptyProject() throws IOException {
-    ConfigurationManager.getInstance().initialize("diylc-test");
+    TestConfiguration.initialize();
     File file = folder.newFile("empty.diy");
     new Presenter(new DummyView(), InMemoryConfigurationManager.getInstance())
         .saveProjectToFile(file.getAbsolutePath(), false);