diff --git a/scm-core/src/main/java/sonia/scm/plugin/PluginCondition.java b/scm-core/src/main/java/sonia/scm/plugin/PluginCondition.java
index 7f927e0fac..93ae6da30a 100644
--- a/scm-core/src/main/java/sonia/scm/plugin/PluginCondition.java
+++ b/scm-core/src/main/java/sonia/scm/plugin/PluginCondition.java
@@ -58,6 +58,29 @@ import javax.xml.bind.annotation.XmlRootElement;
 public class PluginCondition
 {
 
+  /**
+   * Constructs ...
+   *
+   */
+  public PluginCondition() {}
+
+  /**
+   * Constructs ...
+   *
+   *
+   * @param minVersion
+   * @param os
+   * @param arch
+   */
+  public PluginCondition(String minVersion, List<String> os, String arch)
+  {
+    this.minVersion = minVersion;
+    this.os = os;
+    this.arch = arch;
+  }
+
+  //~--- get methods ----------------------------------------------------------
+
   /**
    * Method description
    *
diff --git a/scm-core/src/test/java/sonia/scm/plugin/PluginConditionTest.java b/scm-core/src/test/java/sonia/scm/plugin/PluginConditionTest.java
new file mode 100644
index 0000000000..b9ea6987c3
--- /dev/null
+++ b/scm-core/src/test/java/sonia/scm/plugin/PluginConditionTest.java
@@ -0,0 +1,106 @@
+/**
+ * Copyright (c) 2010, Sebastian Sdorra
+ * All rights reserved.
+ *
+ * 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.
+ * 3. Neither the name of SCM-Manager; nor the names of its
+ *    contributors may be used to endorse or promote products derived from this
+ *    software without specific prior written permission.
+ *
+ * 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 REGENTS 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.
+ *
+ * http://bitbucket.org/sdorra/scm-manager
+ *
+ */
+
+
+
+package sonia.scm.plugin;
+
+//~--- non-JDK imports --------------------------------------------------------
+
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+//~--- JDK imports ------------------------------------------------------------
+
+import java.util.Arrays;
+
+/**
+ *
+ * @author Sebastian Sdorra
+ */
+public class PluginConditionTest
+{
+
+  /**
+   * Method description
+   *
+   */
+  @Test
+  public void testArchIsSupported()
+  {
+    assertTrue(new PluginCondition(null, null, "32").isSupported(null, null,
+                                   "32"));
+    assertFalse(new PluginCondition(null, null, "32").isSupported(null, null,
+                                    "64"));
+  }
+
+  /**
+   * Method description
+   *
+   */
+  @Test
+  public void testIsOsSupported()
+  {
+    assertTrue(new PluginCondition(null, Arrays.asList("unix"),
+                                   null).isSupported(null, "linux", null));
+    assertTrue(new PluginCondition(null, Arrays.asList("win"),
+                                   null).isSupported(null, "Windows 2000",
+                                     null));
+    assertFalse(new PluginCondition(null, Arrays.asList("win"),
+                                    null).isSupported(null, "Mac OS X", null));
+  }
+
+  /**
+   * Method description
+   *
+   */
+  @Test
+  public void testIsSupported()
+  {
+    assertTrue(new PluginCondition("1.2", Arrays.asList("Mac"),
+                                   "64").isSupported("1.4", "Mac OS X", "64"));
+  }
+
+  /**
+   * Method description
+   *
+   */
+  @Test
+  public void testVersionIsSupported()
+  {
+    assertTrue(new PluginCondition("1.1", null, null).isSupported("1.2", null,
+                                   null));
+    assertTrue(new PluginCondition("1.0", null,
+                                   null).isSupported("1.1-SNAPSHOT", null,
+                                     null));
+  }
+}