diff --git a/scm-webapp/src/test/java/sonia/scm/plugin/PluginProcessorTest.java b/scm-webapp/src/test/java/sonia/scm/plugin/PluginProcessorTest.java
index 923e569d16..e78fc1db77 100644
--- a/scm-webapp/src/test/java/sonia/scm/plugin/PluginProcessorTest.java
+++ b/scm-webapp/src/test/java/sonia/scm/plugin/PluginProcessorTest.java
@@ -21,7 +21,7 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
  */
-    
+
 package sonia.scm.plugin;
 
 //~--- non-JDK imports --------------------------------------------------------
@@ -37,6 +37,8 @@ import org.junit.Test;
 import org.junit.rules.TemporaryFolder;
 import sonia.scm.lifecycle.classloading.ClassLoaderLifeCycle;
 
+import javax.xml.bind.JAXB;
+
 import static org.hamcrest.Matchers.*;
 
 import static org.junit.Assert.*;
@@ -53,6 +55,8 @@ import java.lang.reflect.InvocationTargetException;
 import java.net.URL;
 
 import java.util.Set;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipOutputStream;
 
 /**
  *
@@ -96,8 +100,40 @@ public class PluginProcessorTest
     new PluginResource("sonia/scm/plugin/scm-f-plugin-1.0.1.smp",
       "scm-f-plugin.smp", "scm-f-plugin:1.0.1");
 
+  private static final String PLUGIN_G = "sonia/scm/plugin/scm-g-plugin.xml";
+  private static final String PLUGIN_H = "sonia/scm/plugin/scm-h-plugin.xml";
+  private static final String PLUGIN_I = "sonia/scm/plugin/scm-i-plugin.xml";
+
   //~--- methods --------------------------------------------------------------
 
+  @Test(expected = PluginConditionFailedException.class)
+  public void testFailedPluginCondition() throws IOException {
+    createPlugin(PLUGIN_G);
+    collectPlugins();
+  }
+
+
+  @Test(expected = DependencyVersionMismatchException.class)
+  public void testWrongVersionOfDependency() throws IOException {
+    createPlugin(PLUGIN_H);
+    createPlugin(PLUGIN_I);
+    collectPlugins();
+  }
+
+  @SuppressWarnings("UnstableApiUsage")
+  private void createPlugin(String descriptorResource) throws IOException {
+    URL resource = Resources.getResource(descriptorResource);
+    InstalledPluginDescriptor descriptor = JAXB.unmarshal(resource, InstalledPluginDescriptor.class);
+
+    File file = new File(pluginDirectory, descriptor.getInformation().getName() + ".smp");
+
+    try (ZipOutputStream zip = new ZipOutputStream(new FileOutputStream(file))) {
+      zip.putNextEntry(new ZipEntry("META-INF/scm/plugin.xml"));
+      Resources.copy(resource, zip);
+    }
+  }
+
+
   /**
    * Method description
    *
diff --git a/scm-webapp/src/test/resources/sonia/scm/plugin/scm-g-plugin.xml b/scm-webapp/src/test/resources/sonia/scm/plugin/scm-g-plugin.xml
new file mode 100644
index 0000000000..c6b3339938
--- /dev/null
+++ b/scm-webapp/src/test/resources/sonia/scm/plugin/scm-g-plugin.xml
@@ -0,0 +1,45 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!--
+  ~ MIT License
+  ~
+  ~ Copyright (c) 2020-present Cloudogu GmbH and Contributors
+  ~
+  ~ Permission is hereby granted, free of charge, to any person obtaining a copy
+  ~ of this software and associated documentation files (the "Software"), to deal
+  ~ in the Software without restriction, including without limitation the rights
+  ~ to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+  ~ copies of the Software, and to permit persons to whom the Software is
+  ~ furnished to do so, subject to the following conditions:
+  ~
+  ~ The above copyright notice and this permission notice shall be included in all
+  ~ copies or substantial portions of the Software.
+  ~
+  ~ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+  ~ IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+  ~ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+  ~ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+  ~ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+  ~ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+  ~ SOFTWARE.
+  -->
+<plugin>
+
+  <scm-version>2</scm-version>
+
+  <information>
+    <groupId>sonia.scm.plugins</groupId>
+    <artifactId>scm-g-plugin</artifactId>
+    <version>1.0.0</version>
+    <name>scm-g-plugin</name>
+    <description>Plugin g has a min version over 9000</description>
+  </information>
+
+  <conditions>
+    <min-version>9000.0.0</min-version>
+  </conditions>
+
+  <packages>
+    <package>sonia.scm.plugins</package>
+  </packages>
+
+</plugin>
diff --git a/scm-webapp/src/test/resources/sonia/scm/plugin/scm-h-plugin.xml b/scm-webapp/src/test/resources/sonia/scm/plugin/scm-h-plugin.xml
new file mode 100644
index 0000000000..fa2d0767cc
--- /dev/null
+++ b/scm-webapp/src/test/resources/sonia/scm/plugin/scm-h-plugin.xml
@@ -0,0 +1,41 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!--
+  ~ MIT License
+  ~
+  ~ Copyright (c) 2020-present Cloudogu GmbH and Contributors
+  ~
+  ~ Permission is hereby granted, free of charge, to any person obtaining a copy
+  ~ of this software and associated documentation files (the "Software"), to deal
+  ~ in the Software without restriction, including without limitation the rights
+  ~ to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+  ~ copies of the Software, and to permit persons to whom the Software is
+  ~ furnished to do so, subject to the following conditions:
+  ~
+  ~ The above copyright notice and this permission notice shall be included in all
+  ~ copies or substantial portions of the Software.
+  ~
+  ~ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+  ~ IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+  ~ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+  ~ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+  ~ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+  ~ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+  ~ SOFTWARE.
+  -->
+<plugin>
+
+  <scm-version>2</scm-version>
+
+  <information>
+    <groupId>sonia.scm.plugins</groupId>
+    <artifactId>scm-h-plugin</artifactId>
+    <version>1.0.0</version>
+    <name>scm-h-plugin</name>
+    <description>Plugin h is nothing special</description>
+  </information>
+
+  <packages>
+    <package>sonia.scm.plugins</package>
+  </packages>
+
+</plugin>
diff --git a/scm-webapp/src/test/resources/sonia/scm/plugin/scm-i-plugin.xml b/scm-webapp/src/test/resources/sonia/scm/plugin/scm-i-plugin.xml
new file mode 100644
index 0000000000..0fd2c1999a
--- /dev/null
+++ b/scm-webapp/src/test/resources/sonia/scm/plugin/scm-i-plugin.xml
@@ -0,0 +1,45 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!--
+  ~ MIT License
+  ~
+  ~ Copyright (c) 2020-present Cloudogu GmbH and Contributors
+  ~
+  ~ Permission is hereby granted, free of charge, to any person obtaining a copy
+  ~ of this software and associated documentation files (the "Software"), to deal
+  ~ in the Software without restriction, including without limitation the rights
+  ~ to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+  ~ copies of the Software, and to permit persons to whom the Software is
+  ~ furnished to do so, subject to the following conditions:
+  ~
+  ~ The above copyright notice and this permission notice shall be included in all
+  ~ copies or substantial portions of the Software.
+  ~
+  ~ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+  ~ IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+  ~ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+  ~ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+  ~ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+  ~ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+  ~ SOFTWARE.
+  -->
+<plugin>
+
+  <scm-version>2</scm-version>
+
+  <information>
+    <groupId>sonia.scm.plugins</groupId>
+    <artifactId>scm-i-plugin</artifactId>
+    <version>1.0.0</version>
+    <name>scm-i-plugin</name>
+    <description>Plugin i depends on h in version 1.2.0</description>
+  </information>
+
+  <packages>
+    <package>sonia.scm.plugins</package>
+  </packages>
+
+  <dependencies>
+    <dependency version="1.2.0">scm-h-plugin</dependency>
+  </dependencies>
+
+</plugin>